import FormData from 'form-data'
import AsyncLock from 'async-lock';

import MisskeyAPI from './misskey/api_client'
import { DEFAULT_UA } from './default'
import { ProxyConfig } from './proxy_config'
import OAuth from './oauth'
import Response from './response'
import Entity from './entity'
import { MegalodonInterface, WebSocketInterface, NoImplementedError, ArgumentError, UnexpectedError } from './megalodon'
import MegalodonEntity from "@/entity";
import fs from "node:fs";
import MisskeyNotificationType from "./misskey/notification";

type AccountCache = {
  locks: AsyncLock,
  accounts: Entity.Account[]
}

export default class Misskey implements MegalodonInterface {
  public client: MisskeyAPI.Interface
  public converter: MisskeyAPI.Converter
  public baseUrl: string
  public proxyConfig: ProxyConfig | false

  /**
   * @param baseUrl hostname or base URL
   * @param accessToken access token from OAuth2 authorization
   * @param userAgent UserAgent is specified in header on request.
   * @param proxyConfig Proxy setting, or set false if don't use proxy.
   */
  constructor(
    baseUrl: string,
    accessToken: string | null = null,
    userAgent: string | null = DEFAULT_UA,
    proxyConfig: ProxyConfig | false = false
  ) {
    let token: string = ''
    if (accessToken) {
      token = accessToken
    }
    let agent: string = DEFAULT_UA
    if (userAgent) {
      agent = userAgent
    }
    this.converter = new MisskeyAPI.Converter(baseUrl)
    this.client = new MisskeyAPI.Client(baseUrl, token, agent, proxyConfig, this.converter)
    this.baseUrl = baseUrl
    this.proxyConfig = proxyConfig
  }

  private baseUrlToHost(baseUrl: string): string {
    return baseUrl.replace('https://', '')
  }

  public cancel(): void {
    return this.client.cancel()
  }

  public async registerApp(
    client_name: string,
    options: Partial<{ scopes: Array<string>; redirect_uris: string; website: string }> = {
      scopes: MisskeyAPI.DEFAULT_SCOPE,
      redirect_uris: this.baseUrl
    }
  ): Promise<OAuth.AppData> {
    return this.createApp(client_name, options).then(async appData => {
      return this.generateAuthUrlAndToken(appData.client_secret).then(session => {
        appData.url = session.url
        appData.session_token = session.token
        return appData
      })
    })
  }


  /**
   * POST /api/app/create
   *
   * Create an application.
   * @param client_name Your application's name.
   * @param options Form data.
   */
  public async createApp(
    client_name: string,
    options: Partial<{ scopes: Array<string>; redirect_uris: string; website: string }> = {
      scopes: MisskeyAPI.DEFAULT_SCOPE,
      redirect_uris: this.baseUrl
    }
  ): Promise<OAuth.AppData> {
    const redirect_uris = options.redirect_uris || this.baseUrl
    const scopes = options.scopes || MisskeyAPI.DEFAULT_SCOPE

    const params: {
      name: string
      description: string
      permission: Array<string>
      callbackUrl: string
    } = {
      name: client_name,
      description: '',
      permission: scopes,
      callbackUrl: redirect_uris
    }

    /**
     * The response is:
     {
       "id": "xxxxxxxxxx",
       "name": "string",
       "callbackUrl": "string",
       "permission": [
         "string"
       ],
       "secret": "string"
     }
    */
    return this.client.post<MisskeyAPI.Entity.App>('/api/app/create', params).then((res: Response<MisskeyAPI.Entity.App>) => {
      const appData: OAuth.AppDataFromServer = {
        id: res.data.id,
        name: res.data.name,
        website: null,
        redirect_uri: res.data.callbackUrl,
        client_id: '',
        client_secret: res.data.secret
      }
      return OAuth.AppData.from(appData)
    })
  }

  /**
   * POST /api/auth/session/generate
   */
  public async generateAuthUrlAndToken(clientSecret: string): Promise<MisskeyAPI.Entity.Session> {
    return this.client
      .post<MisskeyAPI.Entity.Session>('/api/auth/session/generate', {
        appSecret: clientSecret
      })
      .then((res: Response<MisskeyAPI.Entity.Session>) => res.data)
  }

  // ======================================
  // apps
  // ======================================
  public async verifyAppCredentials(): Promise<Response<Entity.Application>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // apps/oauth
  // ======================================
  /**
   * POST /api/auth/session/userkey
   *
   * @param _client_id This parameter is not used in this method.
   * @param client_secret Application secret key which will be provided in createApp.
   * @param session_token Session token string which will be provided in generateAuthUrlAndToken.
   * @param _redirect_uri This parameter is not used in this method.
   */
  public async fetchAccessToken(
    _client_id: string | null,
    client_secret: string,
    session_token: string,
    _redirect_uri?: string
  ): Promise<OAuth.TokenData> {
    return this.client
      .post<MisskeyAPI.Entity.UserKey>('/api/auth/session/userkey', {
        appSecret: client_secret,
        token: session_token
      })
      .then(res => {
        const token = new OAuth.TokenData(res.data.accessToken, 'misskey', '', 0, null, null)
        return token
      })
  }

  public async refreshToken(_client_id: string, _client_secret: string, _refresh_token: string): Promise<OAuth.TokenData> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async revokeToken(_client_id: string, _client_secret: string, _token: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // accounts
  // ======================================
  public async registerAccount(
    _username: string,
    _email: string,
    _password: string,
    _agreement: boolean,
    _locale: string,
    _reason?: string | null
  ): Promise<Response<Entity.Token>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/i
   */
  public async verifyAccountCredentials(): Promise<Response<Entity.Account>> {
    return this.client.post<MisskeyAPI.Entity.UserDetail>('/api/i').then(res => {
      return Object.assign(res, {
        data: this.converter.userDetail(res.data, this.baseUrlToHost(this.baseUrl))
      })
    })
  }

  /**
   * POST /api/i/update
   */
  public async updateCredentials(options?: {
    discoverable?: boolean
    bot?: boolean
    display_name?: string
    note?: string
    avatar?: string
    header?: string
    locked?: boolean
    source?: {
      privacy?: string
      sensitive?: boolean
      language?: string
    } | null
    fields_attributes?: Array<{ name: string; value: string }>
  }): Promise<Response<Entity.Account>> {
    let params = {}
    if (options) {
      if (options.bot !== undefined) {
        params = Object.assign(params, {
          isBot: options.bot
        })
      }
      if (options.display_name) {
        params = Object.assign(params, {
          name: options.display_name
        })
      }
      if (options.note) {
        params = Object.assign(params, {
          description: options.note
        })
      }
      if (options.locked !== undefined) {
        params = Object.assign(params, {
          isLocked: options.locked
        })
      }
      if (options.source) {
        if (options.source.language) {
          params = Object.assign(params, {
            lang: options.source.language
          })
        }
        if (options.source.sensitive) {
          params = Object.assign(params, {
            alwaysMarkNsfw: options.source.sensitive
          })
        }
      }
    }
    return this.client.post<MisskeyAPI.Entity.UserDetail>('/api/i', params).then(res => {
      return Object.assign(res, {
        data: this.converter.userDetail(res.data, this.baseUrlToHost(this.baseUrl))
      })
    })
  }

  /**
   * POST /api/users/show
   */
  public async getAccount(id: string): Promise<Response<Entity.Account>> {
    return this.client
      .post<MisskeyAPI.Entity.UserDetail>('/api/users/show', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.userDetail(res.data, this.baseUrlToHost(this.baseUrl))
        })
      })
  }

  public async getAccountByName(user: string, host: string | null): Promise<Response<Entity.Account>> {
    return this.client
        .post<MisskeyAPI.Entity.UserDetail>('/api/users/show', {
          username: user,
          host: host ?? null
        })
        .then(res => {
          return Object.assign(res, {
            data: this.converter.userDetail(res.data, this.baseUrlToHost(this.baseUrl))
          })
        })
  }

  /**
   * POST /api/users/notes
   */
  public async getAccountStatuses(
    id: string,
    options?: {
      limit?: number
      max_id?: string
      since_id?: string
      pinned?: boolean
      exclude_replies: boolean
      exclude_reblogs: boolean
      only_media?: boolean
    }
  ): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    if (options?.pinned) {
      return this.client
        .post<MisskeyAPI.Entity.UserDetail>('/api/users/show', {
          userId: id
        })
        .then(async res => {
          if (res.data.pinnedNotes) {
            return {
              ...res,
              data: await Promise.all(res.data.pinnedNotes.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)))
            }
          }
          return {...res, data: []}
        })
    }

    let params = {
      userId: id
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.exclude_replies) {
        params = Object.assign(params, {
          includeReplies: false
        })
      }
      if (options.exclude_reblogs) {
        params = Object.assign(params, {
          includeMyRenotes: false
        })
      }
      if (options.only_media) {
        params = Object.assign(params, {
          withFiles: options.only_media
        })
      }
    } else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Note>>('/api/users/notes', params).then(async res => {
      const statuses: Array<Entity.Status> = await Promise.all(res.data.map(note => this.noteWithDetails(note, this.baseUrlToHost(this.baseUrl), accountCache)))
      return Object.assign(res, {
        data: statuses
      })
    })
  }

  public async getAccountFavourites(
    id: string,
    options?: {
      limit?: number
      max_id?: string
      since_id?: string
    }
  ): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {
      userId: id
    };
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
    }
    return this.client.post<Array<MisskeyAPI.Entity.Favorite>>('/api/users/reactions', params).then(async res => {
      return Object.assign(res, {
        data: await Promise.all(res.data.map(fav => this.noteWithDetails(fav.note, this.baseUrlToHost(this.baseUrl), accountCache)))
      })
    })
  }

  public async subscribeAccount(_id: string): Promise<Response<Entity.Relationship>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async unsubscribeAccount(_id: string): Promise<Response<Entity.Relationship>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/users/followers
   */
  public async getAccountFollowers(
    id: string,
    options?: {
      limit?: number
      max_id?: string
      since_id?: string
    }
  ): Promise<Response<Array<Entity.Account>>> {
    let params = {
      userId: id
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 40
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 40
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Follower>>('/api/users/followers', params).then(res => {
      return Object.assign(res, {
        data: res.data.map(f => this.converter.follower(f))
      })
    })
  }

  /**
   * POST /api/users/following
   */
  public async getAccountFollowing(
    id: string,
    options?: {
      limit?: number
      max_id?: string
      since_id?: string
    }
  ): Promise<Response<Array<Entity.Account>>> {
    let params = {
      userId: id
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
    }
    return this.client.post<Array<MisskeyAPI.Entity.Following>>('/api/users/following', params).then(res => {
      return Object.assign(res, {
        data: res.data.map(f => this.converter.following(f))
      })
    })
  }

  public async getAccountLists(_id: string): Promise<Response<Array<Entity.List>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getIdentityProof(_id: string): Promise<Response<Array<Entity.IdentityProof>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/following/create
   */
  public async followAccount(id: string, _options?: { reblog?: boolean }): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/following/create', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/following/delete
   */
  public async unfollowAccount(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/following/delete', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/blocking/create
   */
  public async blockAccount(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/blocking/create', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/blocking/delete
   */
  public async unblockAccount(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/blocking/delete', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/mute/create
   */
  public async muteAccount(id: string, _notifications: boolean): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/mute/create', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/mute/delete
   */
  public async unmuteAccount(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/mute/delete', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  public async pinAccount(_id: string): Promise<Response<Entity.Relationship>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async unpinAccount(_id: string): Promise<Response<Entity.Relationship>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/users/relation
   *
   * @param id The accountID, for example `'1sdfag'`
   */
  public async getRelationship(id: string): Promise<Response<Entity.Relationship>> {
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/users/relation
   *
   * @param id Array of account ID, for example `['1sdfag', 'ds12aa']`.
   */
  public async getRelationships(ids: Array<string>): Promise<Response<Array<Entity.Relationship>>> {
    return Promise.all(ids.map(id => this.getRelationship(id))).then(results => ({
      ...results[0],
      data: results.map(r => r.data)
    }))
  }

  /**
   * POST /api/users/search
   */
  public async searchAccount(
    q: string,
    options?: {
      following?: boolean
      resolve?: boolean
      limit?: number
      max_id?: string
      since_id?: string
    }
  ): Promise<Response<Array<Entity.Account>>> {
    let params = {
      query: q,
      detail: true
    }
    if (options) {
      if (options.resolve !== undefined) {
        params = Object.assign(params, {
          localOnly: options.resolve
        })
      }
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 40
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 40
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.UserDetail>>('/api/users/search', params).then(res => {
      return Object.assign(res, {
        data: res.data.map(u => this.converter.userDetail(u, this.baseUrlToHost(this.baseUrl)))
      })
    })
  }

  // ======================================
  // accounts/bookmarks
  // ======================================
  /**
   * POST /api/i/favorites
   */
  public async getBookmarks(options?: {
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {}
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 40
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 40
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Favorite>>('/api/i/favorites', params).then(async res => {
      return Object.assign(res, {
        data: await Promise.all(res.data.map(s => this.noteWithDetails(s.note, this.baseUrlToHost(this.baseUrl), accountCache)))
      })
    })
  }

  // ======================================
  //  accounts/favourites
  // ======================================
  public async getFavourites(options?: { limit?: number; max_id?: string; min_id?: string }): Promise<Response<Array<Entity.Status>>> {
    const userId = await this.client.post<MisskeyAPI.Entity.UserDetail>('/api/i').then(res => res.data.id);
    return this.getAccountFavourites(userId, options);
  }

  // ======================================
  // accounts/mutes
  // ======================================
  /**
   * POST /api/mute/list
   */
  public async getMutes(options?: { limit?: number; max_id?: string; min_id?: string }): Promise<Response<Array<Entity.Account>>> {
    let params = {}
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 40
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 40
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Mute>>('/api/mute/list', params).then(res => {
      return Object.assign(res, {
        data: res.data.map(mute => this.converter.userDetail(mute.mutee, this.baseUrlToHost(this.baseUrl)))
      })
    })
  }

  // ======================================
  // accounts/blocks
  // ======================================
  /**
   * POST /api/blocking/list
   */
  public async getBlocks(options?: { limit?: number; max_id?: string; min_id?: string }): Promise<Response<Array<Entity.Account>>> {
    let params = {}
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 40
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 40
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Blocking>>('/api/blocking/list', params).then(res => {
      return Object.assign(res, {
        data: res.data.map(blocking => this.converter.userDetail(blocking.blockee, this.baseUrlToHost(this.baseUrl)))
      })
    })
  }

  // ======================================
  // accounts/domain_blocks
  // ======================================
  public async getDomainBlocks(_options?: { limit?: number; max_id?: string; min_id?: string }): Promise<Response<Array<string>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async blockDomain(_domain: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async unblockDomain(_domain: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // accounts/filters
  // ======================================
  public async getFilters(): Promise<Response<Array<Entity.Filter>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getFilter(_id: string): Promise<Response<Entity.Filter>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async createFilter(
    _phrase: string,
    _context: Array<string>,
    _options?: {
      irreversible?: boolean
      whole_word?: boolean
      expires_in?: string
    }
  ): Promise<Response<Entity.Filter>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async updateFilter(
    _id: string,
    _phrase: string,
    _context: Array<string>,
    _options?: {
      irreversible?: boolean
      whole_word?: boolean
      expires_in?: string
    }
  ): Promise<Response<Entity.Filter>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async deleteFilter(_id: string): Promise<Response<Entity.Filter>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // accounts/reports
  // ======================================
  /**
   * POST /api/users/report-abuse
   */
  public async report(
    account_id: string,
    comment: string,
    _options?: {
      status_ids?: Array<string>
      forward?: boolean
    }
  ): Promise<Response<Entity.Report>> {
    return this.client
      .post<{}>('/api/users/report-abuse', {
        userId: account_id,
        comment: comment
      })
      .then(res => {
        return Object.assign(res, {
          data: {
            id: '',
            action_taken: '',
            comment: comment,
            account_id: account_id,
            status_ids: []
          }
        })
      })
  }

  // ======================================
  // accounts/follow_requests
  // ======================================
  /**
   * POST /api/following/requests/list
   */
  public async getFollowRequests(_limit?: number): Promise<Response<Array<Entity.Account>>> {
    return this.client.post<Array<MisskeyAPI.Entity.FollowRequest>>('/api/following/requests/list').then(res => {
      return Object.assign(res, {
        data: res.data.map(r => this.converter.user(r.follower))
      })
    })
  }

  /**
   * POST /api/following/requests/accept
   */
  public async acceptFollowRequest(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/following/requests/accept', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  /**
   * POST /api/following/requests/reject
   */
  public async rejectFollowRequest(id: string): Promise<Response<Entity.Relationship>> {
    await this.client.post<{}>('/api/following/requests/reject', {
      userId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Relation>('/api/users/relation', {
        userId: id
      })
      .then(res => {
        return Object.assign(res, {
          data: this.converter.relation(res.data)
        })
      })
  }

  // ======================================
  // accounts/endorsements
  // ======================================
  public async getEndorsements(_options?: {
    limit?: number
    max_id?: string
    since_id?: string
  }): Promise<Response<Array<Entity.Account>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // accounts/featured_tags
  // ======================================
  public async getFeaturedTags(): Promise<Response<Array<Entity.FeaturedTag>>> {
    return this.getAccountFeaturedTags();
  }

  public async getAccountFeaturedTags(): Promise<Response<Array<Entity.FeaturedTag>>> {
    const tags : Entity.FeaturedTag[] = [];
    const res : Response = {
      headers: undefined,
      statusText: "",
      status: 200,
      data: tags
    };
    return new Promise(resolve => resolve(res))
  }

  public async createFeaturedTag(_name: string): Promise<Response<Entity.FeaturedTag>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async deleteFeaturedTag(_id: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getSuggestedTags(): Promise<Response<Array<Entity.Tag>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // accounts/preferences
  // ======================================
  public async getPreferences(): Promise<Response<Entity.Preferences>> {
    return this.client.post<MisskeyAPI.Entity.UserDetailMe>('/api/i').then(res => {
      /*
      return this.client.post<MisskeyAPI.Entity.GetAll>('/api/i/registry/get-all', {
        scope: ['client', 'base'],
      }).then(ga => {
        return Object.assign(res, {
          data: this.converter.userPreferences(res.data, ga.data)
        })
      })
      */

      // TODO:
      // FIXME: get this from api
      return Object.assign(res, {
          data: this.converter.userPreferences(res.data, {defaultNoteVisibility: "followers", tutorial: -1})
        })
      })
  }

  // ======================================
  // accounts/suggestions
  // ======================================
  /**
   * POST /api/users/recommendation
   */
  public async getSuggestions(limit?: number): Promise<Response<Array<Entity.Account>>> {
    let params = {}
    if (limit) {
      params = Object.assign(params, {
        limit: limit
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.UserDetail>>('/api/users/recommendation', params)
      .then(res => ({ ...res, data: res.data.map(u => this.converter.userDetail(u, this.baseUrlToHost(this.baseUrl))) }))
  }

  // ======================================
  // accounts/tags
  // ======================================
  public async getFollowedTags(): Promise<Response<Array<Entity.Tag>>> {
    const tags : Entity.Tag[] = [];
    const res : Response = {
      headers: undefined,
      statusText: "",
      status: 200,
      data: tags
    };
    return new Promise(resolve => resolve(res))
  }

  public async getTag(_id: string): Promise<Response<Entity.Tag>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async followTag(_id: string): Promise<Response<Entity.Tag>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async unfollowTag(_id: string): Promise<Response<Entity.Tag>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // statuses
  // ======================================
  public async postStatus(
    status: string,
    options?: {
      media_ids?: Array<string>
      poll?: { options: Array<string>; expires_in: number; multiple?: boolean; hide_totals?: boolean }
      in_reply_to_id?: string
      sensitive?: boolean
      spoiler_text?: string
      visibility?: 'public' | 'unlisted' | 'private' | 'direct'
      scheduled_at?: string
      language?: string
      quote_id?: string
    }
  ): Promise<Response<Entity.Status>> {
    let params = {
      text: status
    }
    if (options) {
      if (options.media_ids) {
        params = Object.assign(params, {
          fileIds: options.media_ids
        })
      }
      if (options.poll) {
        let pollParam = {
          choices: options.poll.options,
          expiresAt: null,
          expiredAfter: options.poll.expires_in
        }
        if (options.poll.multiple !== undefined) {
          pollParam = Object.assign(pollParam, {
            multiple: options.poll.multiple
          })
        }
        params = Object.assign(params, {
          poll: pollParam
        })
      }
      if (options.in_reply_to_id) {
        params = Object.assign(params, {
          replyId: options.in_reply_to_id
        })
      }
      if (options.sensitive) {
        params = Object.assign(params, {
          cw: ''
        })
      }
      if (options.spoiler_text) {
        params = Object.assign(params, {
          cw: options.spoiler_text
        })
      }
      if (options.visibility) {
        params = Object.assign(params, {
          visibility: this.converter.encodeVisibility(options.visibility)
        })
      }
      if (options.quote_id) {
        params = Object.assign(params, {
          renoteId: options.quote_id
        })
      }
    }
    return this.client
      .post<MisskeyAPI.Entity.CreatedNote>('/api/notes/create', params)
      .then(async res => ({
        ...res,
        data: await this.noteWithDetails(res.data.createdNote, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())
      }))
  }

  /**
   * POST /api/notes/show
   */
  public async getStatus(id: string): Promise<Response<Entity.Status>> {
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({ ...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}));
  }

  private getFreshAccountCache() :AccountCache {
    return {
      locks: new AsyncLock(),
      accounts: []
    }
  }

  public async noteWithDetails(n: MisskeyAPI.Entity.Note, host: string, cache: AccountCache): Promise<MegalodonEntity.Status> {
    const status = await this.addUserDetailsToStatus(this.converter.note(n, host), cache);
    return this.addMentionsToStatus(status, cache);
  }

	public async addUserDetailsToStatus(status: Entity.Status, cache: AccountCache) : Promise<Entity.Status> {
		if (status.account.followers_count === 0 && status.account.followers_count === 0 && status.account.statuses_count === 0)
			status.account = await this.getAccountCached(status.account.id, status.account.acct, cache) ?? status.account;

		return status;
	}

  public async addMentionsToStatus(status: Entity.Status, cache: AccountCache) : Promise<Entity.Status> {
		if (status.mentions.length > 0)
			return status;

    status.mentions = (await this.getMentions(status.plain_content!, cache)).filter(p => p != null);
    for (const m of status.mentions.filter((value, index, array) => array.indexOf(value) === index)) {
      status.content = status.content.replace(`@${m.acct}`, `<a href="${m.url}" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@${m.acct}</a>`);
    }
    return status;
  }

  public async getMentions(text: string, cache: AccountCache): Promise<Entity.Mention[]> {
		const mentions :Entity.Mention[] = [];

		if (text == undefined)
			return mentions;

    const mentionMatch = text.matchAll(/(?<=^|\s)@(?<user>.*?)(?:@(?<host>.*?)|)(?=\s|$)/g);

    for (const m of mentionMatch) {
			try {
				if (m.groups == null)
					continue;

				const account = await this.getAccountByNameCached(m.groups.user, m.groups.host, cache);

				if (account == null)
					continue;

				mentions.push({
					id: account.id,
					url: account.url,
					username: account.username,
					acct: account.acct
				});
			}
			catch {}
    }

    return mentions;
  }

  public async getAccountByNameCached(user: string, host: string | null, cache: AccountCache): Promise<Entity.Account | undefined | null> {
    const acctToFind = host == null ? user : `${user}@${host}`;

    return await cache.locks.acquire(acctToFind, async () => {
      const cacheHit = cache.accounts.find(p => p.acct === acctToFind);
      const account = cacheHit ?? (await this.getAccountByName(user, host ?? null)).data;

      if (!account) {
        return null;
      }

      if (cacheHit == null) {
        cache.accounts.push(account);
      }

      return account;
    })
  }

	public async getAccountCached(id: string, acct: string, cache: AccountCache): Promise<Entity.Account | undefined | null> {
		return await cache.locks.acquire(acct, async () => {
			const cacheHit = cache.accounts.find(p => p.id === id);
			const account = cacheHit ?? (await this.getAccount(id)).data;

			if (!account) {
				return null;
			}

			if (cacheHit == null) {
				cache.accounts.push(account);
			}

			return account;
		})
	}

  public async editStatus(
    _id: string,
    _options: {
      status?: string
      spoiler_text?: string
      sensitive?: boolean
      media_ids?: Array<string>
      poll?: { options?: Array<string>; expires_in?: number; multiple?: boolean; hide_totals?: boolean }
    }
  ): Promise<Response<Entity.Status>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/notes/delete
   */
  public async deleteStatus(id: string): Promise<Response<{}>> {
    return this.client.post<{}>('/api/notes/delete', {
      noteId: id
    })
  }

  /**
   * POST /api/notes/children
   */
  public async getStatusContext(
    id: string,
    options?: { limit?: number; max_id?: string; since_id?: string }
  ): Promise<Response<Entity.Context>> {
    let params = {
      noteId: id
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit,
          depth: 12
        })
      }
      else {
        params = Object.assign(params, {
          limit: 30,
          depth: 12
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 30,
        depth: 12
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Note>>('/api/notes/children', params).then(async res => {
      const accountCache = this.getFreshAccountCache();
      const conversation = await this.client.post<Array<MisskeyAPI.Entity.Note>>('/api/notes/conversation', params);
      const parents = await Promise.all(conversation.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)));

      const context: Entity.Context = {
        ancestors: parents.reverse(),
        descendants: this.dfs(await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache))))
      }
      return {
        ...res,
        data: context
      }
    })
  }

  private dfs(graph: Entity.Status[]) {
    // we don't need to run dfs if we have zero or one elements
    if (graph.length <= 1) {
      return graph;
    }

    // sort the graph first, so we can grab the correct starting point
    graph = graph.sort((a, b) => {
      if (a.id < b.id) return -1;
      if (a.id > b.id) return 1;
      return 0;
    });

    const initialPostId = graph[0].in_reply_to_id;

    // populate stack with all top level replies
    const stack = graph.filter(reply => reply.in_reply_to_id === initialPostId).reverse();
    const visited = new Set();
    const result = [];

    while (stack.length) {
      const currentPost = stack.pop();

      if (currentPost === undefined)
        return result;

      if (!visited.has(currentPost)) {
        visited.add(currentPost);
        result.push(currentPost);

        for (const reply of graph.filter(reply => reply.in_reply_to_id === currentPost.id).reverse()) {
          stack.push(reply);
        }
      }
    }

    return result;
  }

  public async getStatusHistory(): Promise<Response<Array<Entity.StatusEdit>>> {
    // FIXME: stub, implement once we have note edit history in the database
    const history : Entity.StatusEdit[] = [];
    const res : Response = {
      headers: undefined,
      statusText: "",
      status: 200,
      data: history
    };
    return new Promise(resolve => resolve(res))
  }

  /**
   * POST /api/notes/renotes
   */
  public async getStatusRebloggedBy(id: string): Promise<Response<Array<Entity.Account>>> {
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/renotes', {
        noteId: id
      })
      .then(res => ({
        ...res,
        data: res.data.map(n => this.converter.user(n.user))
      }))
  }

  public async getStatusFavouritedBy(_id: string): Promise<Response<Array<Entity.Account>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async favouriteStatus(id: string): Promise<Response<Entity.Status>> {
    return this.createEmojiReaction(id, await this.getDefaultFavoriteEmoji());
  }

  private async getDefaultFavoriteEmoji(): Promise<string> {
    // NOTE: get-unsecure is calckey's extension.
    //       Misskey doesn't have this endpoint and regular `/i/registry/get` won't work
    //       unless you have a 'nativeToken', which is reserved for the frontend webapp.

    return await this.client
        .post<Array<string>>('/api/i/registry/get-unsecure', {
          key: 'reactions',
          scope: ['client', 'base'],
        })
        .then(res => res.data[0] ?? '⭐');
  }

  public async unfavouriteStatus(id: string): Promise<Response<Entity.Status>> {
    // NOTE: Misskey allows only one reaction per status, so we don't need to care what that emoji was.
    return this.deleteEmojiReaction(id, '');
  }

  /**
   * POST /api/notes/create
   */
  public async reblogStatus(id: string): Promise<Response<Entity.Status>> {
    return this.client
      .post<MisskeyAPI.Entity.CreatedNote>('/api/notes/create', {
        renoteId: id
      })
      .then(async res => ({
        ...res,
        data: await this.noteWithDetails(res.data.createdNote, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())
      }))
  }

  /**
   * POST /api/notes/unrenote
   */
  public async unreblogStatus(id: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/notes/unrenote', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  /**
   * POST /api/notes/favorites/create
   */
  public async bookmarkStatus(id: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/notes/favorites/create', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  /**
   * POST /api/notes/favorites/delete
   */
  public async unbookmarkStatus(id: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/notes/favorites/delete', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  public async muteStatus(_id: string): Promise<Response<Entity.Status>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async unmuteStatus(_id: string): Promise<Response<Entity.Status>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/i/pin
   */
  public async pinStatus(id: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/i/pin', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  /**
   * POST /api/i/unpin
   */
  public async unpinStatus(id: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/i/unpin', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  // ======================================
  // statuses/media
  // ======================================
  /**
   * POST /api/drive/files/create
   */
  public async uploadMedia(file: any, _options?: { description?: string; focus?: string }): Promise<Response<Entity.Attachment>> {
    const formData = new FormData()
    formData.append('file', fs.createReadStream(file.path), {
      contentType: file.mimetype,
      filename: file.originalname,
    })
    let headers: { [key: string]: string } = {}
    if (typeof formData.getHeaders === 'function') {
      headers = formData.getHeaders()
    }
    return this.client
      .post<MisskeyAPI.Entity.File>('/api/drive/files/create', formData, headers)
      .then(res => ({ ...res, data: this.converter.file(res.data) }))
  }

  public async getMedia(id: string): Promise<Response<Entity.Attachment>> {
    const res = await this.client.post<MisskeyAPI.Entity.File>('/api/drive/files/show', { fileId: id })
    return { ...res, data: this.converter.file(res.data) }
  }

  /**
   * POST /api/drive/files/update
   */
  public async updateMedia(
    id: string,
    options?: {
      file?: any
      description?: string
      focus?: string
      is_sensitive?: boolean
    }
  ): Promise<Response<Entity.Attachment>> {
    let params = {
      fileId: id
    }
    if (options) {
      if (options.is_sensitive !== undefined) {
        params = Object.assign(params, {
          isSensitive: options.is_sensitive
        })
      }
    }
    return this.client
      .post<MisskeyAPI.Entity.File>('/api/drive/files/update', params)
      .then(res => ({ ...res, data: this.converter.file(res.data) }))
  }

  // ======================================
  // statuses/polls
  // ======================================
  public async getPoll(_id: string): Promise<Response<Entity.Poll>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/notes/polls/vote
   */
  public async votePoll(_id: string, choices: Array<number>, status_id?: string | null): Promise<Response<Entity.Poll>> {
    if (!status_id) {
      return new Promise((_, reject) => {
        const err = new ArgumentError('status_id is required')
        reject(err)
      })
    }
    const params = {
      noteId: status_id,
      choice: choices[0]
    }
    await this.client.post<{}>('/api/notes/polls/vote', params)
    const res = await this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: status_id
      })
      .then(async res => {
        const note = await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())
        return {...res, data: note.poll}
      })
    if (!res.data) {
      return new Promise((_, reject) => {
        const err = new UnexpectedError('poll does not exist')
        reject(err)
      })
    }
    return { ...res, data: res.data }
  }

  // ======================================
  // statuses/scheduled_statuses
  // ======================================
  public async getScheduledStatuses(_options?: {
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.ScheduledStatus>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getScheduledStatus(_id: string): Promise<Response<Entity.ScheduledStatus>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async scheduleStatus(_id: string, _scheduled_at?: string | null): Promise<Response<Entity.ScheduledStatus>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async cancelScheduledStatus(_id: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // timelines
  // ======================================
  /**
   * POST /api/notes/global-timeline
   */
  public async getPublicTimeline(options?: {
    only_media?: boolean
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {}
    if (options) {
      if (options.only_media !== undefined) {
        params = Object.assign(params, {
          withFiles: options.only_media
        })
      }
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/global-timeline', params)
      .then(async res => ({
        ...res,
        data: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)))
      }))
  }

  /**
   * POST /api/notes/local-timeline
   */
  public async getLocalTimeline(options?: {
    only_media?: boolean
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {}
    if (options) {
      if (options.only_media !== undefined) {
        params = Object.assign(params, {
          withFiles: options.only_media
        })
      }
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/local-timeline', params)
      .then(async res => ({
        ...res,
        data: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)))
      }))
  }

  /**
   * POST /api/notes/search-by-tag
   */
  public async getTagTimeline(
    hashtag: string,
    options?: {
      local?: boolean
      only_media?: boolean
      limit?: number
      max_id?: string
      since_id?: string
      min_id?: string
    }
  ): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {
      tag: hashtag
    }
    if (options) {
      if (options.only_media !== undefined) {
        params = Object.assign(params, {
          withFiles: options.only_media
        })
      }
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/search-by-tag', params)
      .then(async res => ({
        ...res,
        data: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)))
      }))
  }

  /**
   * POST /api/notes/timeline
   */
  public async getHomeTimeline(options?: {
    local?: boolean
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {
      withFiles: false
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/timeline', params)
      .then(async res => ({
        ...res,
        data: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache)))
      }))
  }

  /**
   * POST /api/notes/user-list-timeline
   */
  public async getListTimeline(
    list_id: string,
    options?: {
      limit?: number
      max_id?: string
      since_id?: string
      min_id?: string
    }
  ): Promise<Response<Array<Entity.Status>>> {
    const accountCache = this.getFreshAccountCache();

    let params = {
      listId: list_id,
      withFiles: false
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/user-list-timeline', params)
      .then(async res => ({ ...res, data: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache))) }))
  }

  // ======================================
  // timelines/conversations
  // ======================================
  /**
   * POST /api/notes/mentions
   */
  public async getConversationTimeline(options?: {
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
  }): Promise<Response<Array<Entity.Conversation>>> {
    let params = {
      visibility: 'specified'
    }
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Note>>('/api/notes/mentions', params)
      .then(res => ({ ...res, data: res.data.map(n => this.converter.noteToConversation(n, this.baseUrlToHost(this.baseUrl))) }))
    // FIXME: ^ this should also parse mentions
  }

  public async deleteConversation(_id: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async readConversation(_id: string): Promise<Response<Entity.Conversation>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // timelines/lists
  // ======================================
  /**
   * POST /api/users/lists/list
   */
  public async getLists(): Promise<Response<Array<Entity.List>>> {
    return this.client
      .post<Array<MisskeyAPI.Entity.List>>('/api/users/lists/list')
      .then(res => ({ ...res, data: res.data.map(l => this.converter.list(l)) }))
  }

  /**
   * POST /api/users/lists/show
   */
  public async getList(id: string): Promise<Response<Entity.List>> {
    return this.client
      .post<MisskeyAPI.Entity.List>('/api/users/lists/show', {
        listId: id
      })
      .then(res => ({ ...res, data: this.converter.list(res.data) }))
  }

  /**
   * POST /api/users/lists/create
   */
  public async createList(title: string): Promise<Response<Entity.List>> {
    return this.client
      .post<MisskeyAPI.Entity.List>('/api/users/lists/create', {
        name: title
      })
      .then(res => ({ ...res, data: this.converter.list(res.data) }))
  }

  /**
   * POST /api/users/lists/update
   */
  public async updateList(id: string, title: string): Promise<Response<Entity.List>> {
    return this.client
      .post<MisskeyAPI.Entity.List>('/api/users/lists/update', {
        listId: id,
        name: title
      })
      .then(res => ({ ...res, data: this.converter.list(res.data) }))
  }

  /**
   * POST /api/users/lists/delete
   */
  public async deleteList(id: string): Promise<Response<{}>> {
    return this.client.post<{}>('/api/users/lists/delete', {
      listId: id
    })
  }

  /**
   * POST /api/users/lists/show
   */
  public async getAccountsInList(
    id: string,
    _options?: {
      limit?: number
      max_id?: string
      since_id?: string
    }
  ): Promise<Response<Array<Entity.Account>>> {
    const res = await this.client.post<MisskeyAPI.Entity.List>('/api/users/lists/show', {
      listId: id
    })
    const promise = res.data.userIds.map(userId => this.getAccount(userId))
    const accounts = await Promise.all(promise)
    return { ...res, data: accounts.map(r => r.data) }
  }

  /**
   * POST /api/users/lists/push
   */
  public async addAccountsToList(id: string, account_ids: Array<string>): Promise<Response<{}>> {
    return this.client.post<{}>('/api/users/lists/push', {
      listId: id,
      userId: account_ids[0]
    })
  }

  /**
   * POST /api/users/lists/pull
   */
  public async deleteAccountsFromList(id: string, account_ids: Array<string>): Promise<Response<{}>> {
    return this.client.post<{}>('/api/users/lists/pull', {
      listId: id,
      userId: account_ids[0]
    })
  }

  // ======================================
  // timelines/markers
  // ======================================
  public async getMarkers(_timeline: Array<string>): Promise<Response<Entity.Marker | {}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async saveMarkers(_options?: {
    home?: { last_read_id: string }
    notifications?: { last_read_id: string }
  }): Promise<Response<Entity.Marker>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // notifications
  // ======================================
  /**
   * POST /api/i/notifications
   */
  public async getNotifications(options?: {
    limit?: number
    max_id?: string
    since_id?: string
    min_id?: string
    exclude_type?: Array<Entity.NotificationType>
    account_id?: string
  }): Promise<Response<Array<Entity.Notification>>> {
    let params = {}
    if (options) {
      if (options.limit) {
        params = Object.assign(params, {
          limit: options.limit
        })
      }
      else {
        params = Object.assign(params, {
          limit: 20
        })
      }
      if (options.max_id) {
        params = Object.assign(params, {
          untilId: options.max_id
        })
      }
      if (options.since_id) {
        params = Object.assign(params, {
          sinceId: options.since_id
        })
      }
      if (options.min_id) {
        params = Object.assign(params, {
          sinceId: options.min_id
        })
      }
      if (options.exclude_type) {
        params = Object.assign(params, {
          excludeType: options.exclude_type.map(e => this.converter.encodeNotificationType(e))
        })
      }
    }
    else {
      params = Object.assign(params, {
        limit: 20
      })
    }
    return this.client
      .post<Array<MisskeyAPI.Entity.Notification>>('/api/i/notifications', params)
      .then(res => ({
				...res,
				data: res.data
					.filter(p => p.type != MisskeyNotificationType.FollowRequestAccepted) // these aren't supported on mastodon
					.map(n => this.converter.notification(n, this.baseUrlToHost(this.baseUrl))) }))
  }

  public async getNotification(_id: string): Promise<Response<Entity.Notification>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * POST /api/notifications/mark-all-as-read
   */
  public async dismissNotifications(): Promise<Response<{}>> {
    return this.client.post<{}>('/api/notifications/mark-all-as-read')
  }

  public async dismissNotification(_id: string): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async readNotifications(_options: {
    id?: string
    max_id?: string
  }): Promise<Response<Entity.Notification | Array<Entity.Notification>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('mastodon does not support')
      reject(err)
    })
  }

  // ======================================
  // notifications/push
  // ======================================
  public async subscribePushNotification(
    _subscription: { endpoint: string; keys: { p256dh: string; auth: string } },
    _data?: { alerts: { follow?: boolean; favourite?: boolean; reblog?: boolean; mention?: boolean; poll?: boolean } } | null
  ): Promise<Response<Entity.PushSubscription>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getPushSubscription(): Promise<Response<Entity.PushSubscription>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async updatePushSubscription(
    _data?: { alerts: { follow?: boolean; favourite?: boolean; reblog?: boolean; mention?: boolean; poll?: boolean } } | null
  ): Promise<Response<Entity.PushSubscription>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  /**
   * DELETE /api/v1/push/subscription
   */
  public async deletePushSubscription(): Promise<Response<{}>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // search
  // ======================================
  public async search(
    q: string,
    type: 'accounts' | 'hashtags' | 'statuses',
    options?: {
      limit?: number
      max_id?: string
      min_id?: string
      resolve?: boolean
      offset?: number
      following?: boolean
      account_id?: string
      exclude_unreviewed?: boolean
    }
  ): Promise<Response<Entity.Results>> {
    const accountCache = this.getFreshAccountCache();

    switch (type) {
      case 'accounts': {
        let params = {
          query: q
        }
        if (options) {
          if (options.limit) {
            params = Object.assign(params, {
              limit: options.limit
            })
          }
          else {
            params = Object.assign(params, {
              limit: 20
            })
          }
          if (options.offset) {
            params = Object.assign(params, {
              offset: options.offset
            })
          }
          if (options.resolve) {
            params = Object.assign(params, {
              localOnly: options.resolve
            })
          }
        }
        else {
          params = Object.assign(params, {
            limit: 20
          })
        }

        try {
          const match = q.match(/^@(?<user>.*?)(?:@(?<host>.*?)|)$/);
          if (match) {
            const lookupQuery = {
              username: match.groups?.user,
              host: match.groups?.host
            };

            const result = await this.client.post<MisskeyAPI.Entity.UserDetail>('/api/users/show', lookupQuery).then(res => ({
              ...res,
              data: {
                accounts: [this.converter.userDetail(res.data, this.baseUrlToHost(this.baseUrl))],
                statuses: [],
                hashtags: []
              }
            }));

            if (result.status !== 200) {
              result.status = 200;
              result.statusText = "OK";
              result.data = {
                accounts: [],
                statuses: [],
                hashtags: []
              };
            }

            return result;
          }
        }
        catch {}

        return this.client.post<Array<MisskeyAPI.Entity.UserDetail>>('/api/users/search', params).then(res => ({
          ...res,
          data: {
            accounts: res.data.map(u => this.converter.userDetail(u, this.baseUrlToHost(this.baseUrl))),
            statuses: [],
            hashtags: []
          }
        }))
      }
      case 'statuses': {
        let params = {
          query: q
        }
        if (options) {
          if (options.limit) {
            params = Object.assign(params, {
              limit: options.limit
            })
          }
          if (options.offset) {
            params = Object.assign(params, {
              offset: options.offset
            })
          }
          if (options.max_id) {
            params = Object.assign(params, {
              untilId: options.max_id
            })
          }
          if (options.min_id) {
            params = Object.assign(params, {
              sinceId: options.min_id
            })
          }
          if (options.account_id) {
            params = Object.assign(params, {
              userId: options.account_id
            })
          }
        }
        return this.client.post<Array<MisskeyAPI.Entity.Note>>('/api/notes/search', params).then(async res => ({
          ...res,
          data: {
            accounts: [],
            statuses: await Promise.all(res.data.map(n => this.noteWithDetails(n, this.baseUrlToHost(this.baseUrl), accountCache))),
            hashtags: []
          }
        }))
      }
      case 'hashtags': {
        let params = {
          query: q
        }
        if (options) {
          if (options.limit) {
            params = Object.assign(params, {
              limit: options.limit
            })
          }
          if (options.offset) {
            params = Object.assign(params, {
              offset: options.offset
            })
          }
        }
        return this.client.post<Array<string>>('/api/hashtags/search', params).then(res => ({
          ...res,
          data: {
            accounts: [],
            statuses: [],
            hashtags: res.data.map(h => ({ name: h, url: h, history: null, following: false }))
          }
        }))
      }
    }
  }

  // ======================================
  // instance
  // ======================================
  /**
   * POST /api/meta
   * POST /api/stats
   */
  public async getInstance(): Promise<Response<Entity.Instance>> {
    const meta = await this.client.post<MisskeyAPI.Entity.Meta>('/api/meta').then(res => res.data)
    return this.client
      .post<MisskeyAPI.Entity.Stats>('/api/stats')
      .then(res => ({ ...res, data: this.converter.meta(meta, res.data) }))
  }

  public async getInstancePeers(): Promise<Response<Array<string>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public async getInstanceActivity(): Promise<Response<Array<Entity.Activity>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // instance/trends
  // ======================================
  /**
   * POST /api/hashtags/trend
   */
  public async getInstanceTrends(_limit?: number | null): Promise<Response<Array<Entity.Tag>>> {
    return this.client
      .post<Array<MisskeyAPI.Entity.Hashtag>>('/api/hashtags/trend')
      .then(res => ({ ...res, data: res.data.map(h => this.converter.hashtag(h)) }))
  }

  // ======================================
  // instance/directory
  // ======================================
  public async getInstanceDirectory(_options?: {
    limit?: number
    offset?: number
    order?: 'active' | 'new'
    local?: boolean
  }): Promise<Response<Array<Entity.Account>>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  // ======================================
  // instance/custom_emojis
  // ======================================
  /**
   * POST /api/meta
   */
  public async getInstanceCustomEmojis(): Promise<Response<Array<Entity.Emoji>>> {
    return this.client
      .post<MisskeyAPI.Entity.Meta>('/api/meta')
      .then(res => ({ ...res, data: res.data.emojis.map(e => this.converter.emoji(e)) }))
  }

  // ======================================
  // instance/announcements
  // ======================================
  public async getInstanceAnnouncements(with_dismissed?: boolean | null): Promise<Response<Array<Entity.Announcement>>> {
    let params = {}
    if (with_dismissed) {
      params = Object.assign(params, {
        withUnreads: with_dismissed
      })
    }
    return this.client.post<Array<MisskeyAPI.Entity.Announcement>>('/api/announcements', params).then(res => ({
      ...res,
      data: res.data.map(t => this.converter.announcement(t))
    }))
  }

  public async dismissInstanceAnnouncement(id: string): Promise<Response<{}>> {
    return this.client.post<{}>('/api/i/read-announcement', { announcementId: id })
  }

  // ======================================
  // Emoji reactions
  // ======================================
  /**
   * POST /api/notes/reactions/create
   *
   * @param {string} id Target note ID.
   * @param {string} emoji Reaction emoji string. This string is raw unicode emoji.
   */
  public async createEmojiReaction(id: string, emoji: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/notes/reactions/create', {
      noteId: id,
      reaction: emoji
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  /**
   * POST /api/notes/reactions/delete
   */
  public async deleteEmojiReaction(id: string, _emoji: string): Promise<Response<Entity.Status>> {
    await this.client.post<{}>('/api/notes/reactions/delete', {
      noteId: id
    })
    return this.client
      .post<MisskeyAPI.Entity.Note>('/api/notes/show', {
        noteId: id
      })
      .then(async res => ({...res, data: await this.noteWithDetails(res.data, this.baseUrlToHost(this.baseUrl), this.getFreshAccountCache())}))
  }

  public async getEmojiReactions(id: string): Promise<Response<Array<Entity.Reaction>>> {
    return this.client
      .post<Array<MisskeyAPI.Entity.Reaction>>('/api/notes/reactions', {
        noteId: id
      })
      .then(res => ({
        ...res,
        data: this.converter.reactions(res.data)
      }))
  }

  public async getEmojiReaction(_id: string, _emoji: string): Promise<Response<Entity.Reaction>> {
    return new Promise((_, reject) => {
      const err = new NoImplementedError('misskey does not support')
      reject(err)
    })
  }

  public userSocket(): WebSocketInterface {
    return this.client.socket('user')
  }

  public publicSocket(): WebSocketInterface {
    return this.client.socket('globalTimeline')
  }

  public localSocket(): WebSocketInterface {
    return this.client.socket('localTimeline')
  }

  public tagSocket(_tag: string): WebSocketInterface {
    throw new NoImplementedError('TODO: implement')
  }

  public listSocket(list_id: string): WebSocketInterface {
    return this.client.socket('list', list_id)
  }

  public directSocket(): WebSocketInterface {
    return this.client.socket('conversation')
  }
}