From 7e63ab0f5628bea33e8867d8257779b9ffeb8dd6 Mon Sep 17 00:00:00 2001
From: syuilo <4439005+syuilo@users.noreply.github.com>
Date: Sun, 17 Mar 2024 10:34:13 +0900
Subject: [PATCH] refactor(backend): refactor chart engine

---
 packages/backend/src/core/chart/core.ts | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/packages/backend/src/core/chart/core.ts b/packages/backend/src/core/chart/core.ts
index aa0cb9dc2b..f10e30ef10 100644
--- a/packages/backend/src/core/chart/core.ts
+++ b/packages/backend/src/core/chart/core.ts
@@ -459,13 +459,15 @@ export default abstract class Chart<T extends Schema> {
 				}
 			}
 
-			// bake unique count
+			// bake cardinality
 			for (const [k, v] of Object.entries(finalDiffs)) {
 				if (this.schema[k].uniqueIncrement) {
 					const name = COLUMN_PREFIX + k.replaceAll('.', COLUMN_DELIMITER) as keyof Columns<T>;
 					const tempColumnName = UNIQUE_TEMP_COLUMN_PREFIX + k.replaceAll('.', COLUMN_DELIMITER) as keyof TempColumnsForUnique<T>;
-					queryForHour[name] = new Set([...(v as string[]), ...(logHour[tempColumnName] as unknown as string[])]).size;
-					queryForDay[name] = new Set([...(v as string[]), ...(logDay[tempColumnName] as unknown as string[])]).size;
+					const cardinalityOfHour = new Set([...(v as string[]), ...(logHour[tempColumnName] as unknown as string[])]).size;
+					const cardinalityOfDay = new Set([...(v as string[]), ...(logDay[tempColumnName] as unknown as string[])]).size;
+					queryForHour[name] = cardinalityOfHour;
+					queryForDay[name] = cardinalityOfDay;
 				}
 			}
 
@@ -637,7 +639,7 @@ export default abstract class Chart<T extends Schema> {
 		// 要求された範囲にログがひとつもなかったら
 		if (logs.length === 0) {
 			// もっとも新しいログを持ってくる
-			// (すくなくともひとつログが無いと隙間埋めできないため)
+			// (すくなくともひとつログが無いと補間できないため)
 			const recentLog = await repository.findOne({
 				where: group ? {
 					group: group,
@@ -654,7 +656,7 @@ export default abstract class Chart<T extends Schema> {
 		// 要求された範囲の最も古い箇所に位置するログが存在しなかったら
 		} else if (!isTimeSame(new Date(logs.at(-1)!.date * 1000), gt)) {
 			// 要求された範囲の最も古い箇所時点での最も新しいログを持ってきて末尾に追加する
-			// (隙間埋めできないため)
+			// (補間できないため)
 			const outdatedLog = await repository.findOne({
 				where: {
 					date: LessThan(Chart.dateToTimestamp(gt)),
@@ -683,7 +685,7 @@ export default abstract class Chart<T extends Schema> {
 			if (log) {
 				chart.unshift(this.convertRawRecord(log));
 			} else {
-				// 隙間埋め
+				// 補間
 				const latest = logs.find(l => isTimeBefore(new Date(l.date * 1000), current));
 				const data = latest ? this.convertRawRecord(latest) : null;
 				chart.unshift(this.getNewLog(data));