<template>
	<MkModal ref="modal" :prefer-type="'dialog'" :z-priority="'high'" @click="done(true)" @closed="emit('closed')">
		<div :class="$style.root">
			<div v-if="icon" :class="$style.icon">
				<i :class="icon"></i>
			</div>
			<div v-else-if="!input && !select" :class="[$style.icon, $style['type_' + type]]">
				<i v-if="type === 'success'" :class="$style.iconInner" class="ph-check ph-bold ph-lg"></i>
				<i v-else-if="type === 'error'" :class="$style.iconInner" class="ph-circle-wavy-warning ph-bold ph-lg"></i>
				<i v-else-if="type === 'warning'" :class="$style.iconInner" class="ph-warning ph-bold ph-lg"></i>
				<i v-else-if="type === 'info'" :class="$style.iconInner" class="ph-info ph-bold ph-lg"></i>
				<i v-else-if="type === 'question'" :class="$style.iconInner" class="ph-circle-question ph-bold ph-lg"></i>
				<MkLoading v-else-if="type === 'waiting'" :class="$style.iconInner" :em="true"/>
			</div>
			<header v-if="title" :class="$style.title"><Mfm :text="title"/></header>
			<header v-if="title == null && (input && input.type === 'password')" :class="$style.title"><Mfm :text="i18n.ts.password"/></header>
			<div v-if="text" :class="$style.text"><Mfm :text="text"/></div>
			<MkInput v-if="input && input.type !== 'paragraph'" v-model="inputValue" autofocus :type="input.type || 'text'" :placeholder="input.placeholder || undefined" @keydown="onInputKeydown">
				<template v-if="input.type === 'password'" #prefix><i class="ph-password ph-bold ph-lg"></i></template>
			</MkInput>
			<MkTextarea v-if="input && input.type === 'paragraph'" v-model="inputValue" autofocus :type="paragraph" :placeholder="input.placeholder || undefined">
			</MkTextarea>
			<MkSelect v-if="select" v-model="selectedValue" autofocus>
				<template v-if="select.items">
					<option v-for="item in select.items" :value="item.value">{{ item.text }}</option>
				</template>
				<template v-else>
					<optgroup v-for="groupedItem in select.groupedItems" :label="groupedItem.label">
						<option v-for="item in groupedItem.items" :value="item.value">{{ item.text }}</option>
					</optgroup>
				</template>
			</MkSelect>
			<div v-if="(showOkButton || showCancelButton) && !actions" :class="$style.buttons">
				<div v-if="!isYesNo">
					<MkButton v-if="showOkButton" inline primary :autofocus="!input && !select" @click="ok">{{ (showCancelButton || input || select) ? i18n.ts.ok : i18n.ts.gotIt }}</MkButton>
					<MkButton v-if="showCancelButton || input || select" inline @click="cancel">{{ i18n.ts.cancel }}</MkButton>
				</div>
				<div v-else>
					<MkButton v-if="showOkButton" inline primary :autofocus="!input && !select" @click="ok">{{ i18n.ts.yes }}</MkButton>
					<MkButton v-if="showCancelButton || input || select" inline @click="cancel">{{ i18n.ts.no }}</MkButton>
				</div>
			</div>
			<div v-if="actions" :class="$style.buttons">
				<MkButton v-for="action in actions" :key="action.text" inline :primary="action.primary" @click="() => { action.callback(); modal?.close(); }">{{ action.text }}</MkButton>
			</div>
		</div>
	</MkModal>
</template>

<script lang="ts" setup>
import { onBeforeUnmount, onMounted, ref, shallowRef } from 'vue';
import MkModal from '@/components/MkModal.vue';
import MkButton from '@/components/MkButton.vue';
import MkInput from '@/components/form/input.vue';
import MkTextarea from '@/components/form/textarea.vue';
import MkSelect from '@/components/form/select.vue';
import { i18n } from '@/i18n';

type Input = {
	type: HTMLInputElement['type'];
	placeholder?: string | null;
	default: any | null;
};

type Select = {
	items: {
		value: string;
		text: string;
	}[];
	groupedItems: {
		label: string;
		items: {
			value: string;
			text: string;
		}[];
	}[];
	default: string | null;
};

const props = withDefaults(defineProps<{
	type?: 'success' | 'error' | 'warning' | 'info' | 'question' | 'waiting';
	title: string;
	text?: string;
	input?: Input;
	select?: Select;
	icon?: string;
	actions?: {
		text: string;
		primary?: boolean,
		callback: (...args: any[]) => void;
	}[];
	showOkButton?: boolean;
	showCancelButton?: boolean;
	isYesNo?: boolean;

	cancelableByBgClick?: boolean;
	okText?: string;
	cancelText?: string;
}>(), {
	type: 'info',
	showOkButton: true,
	showCancelButton: false,
	isYesNo: false,

	cancelableByBgClick: true,
});

const emit = defineEmits<{
	(ev: 'done', v: { canceled: boolean; result: any }): void;
	(ev: 'closed'): void;
}>();

const modal = shallowRef<InstanceType<typeof MkModal>>();

const inputValue = ref(props.input?.default || null);
const selectedValue = ref(props.select?.default || null);

function done(canceled: boolean, result?) {
	emit('done', { canceled, result });
	modal.value?.close();
}

async function ok() {
	if (!props.showOkButton) return;

	const result =
		props.input ? inputValue.value :
		props.select ? selectedValue.value :
		true;
	done(false, result);
}

function cancel() {
	done(true);
}
/*
function onBgClick() {
	if (props.cancelableByBgClick) cancel();
}
*/
function onKeydown(evt: KeyboardEvent) {
	if (evt.key === 'Escape') cancel();
}

function onInputKeydown(evt: KeyboardEvent) {
	if (evt.key === 'Enter') {
		evt.preventDefault();
		evt.stopPropagation();
		ok();
	}
}

onMounted(() => {
	document.addEventListener('keydown', onKeydown);
});

onBeforeUnmount(() => {
	document.removeEventListener('keydown', onKeydown);
});
</script>

<style lang="scss" module>
.root {
	position: relative;
	margin: auto;
	padding: 32px;
	min-width: 320px;
	max-width: 480px;
	box-sizing: border-box;
	text-align: center;
	background: var(--panel);
	border-radius: var(--radius);
}

.icon {
	font-size: 24px;

	& + .title {
		margin-top: 8px;
	}
}

.iconInner {
	display: block;
	margin: 0 auto;
}

.type_info {
	color: var(--accent);
}

.type_success {
	color: var(--success);
}

.type_error {
	color: var(--error);
}

.type_warning {
	color: var(--warn);
}

.title {
	margin: 0 0 8px 0;
	font-weight: bold;
	font-size: 1.1em;

	& + .text {
		margin-top: 8px;
	}
}

.text {
	margin: 16px 0 0 0;
}

.buttons {
	margin-top: 16px;
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
	justify-content: center;
}
</style>