v4.0.14概览和日报

2026-09-02 21:11:58 +08:00
parent e5fe8b903a
commit 68a4b7f984
41 changed files with 3815 additions and 1098 deletions
@@ -0,0 +1,237 @@
+import {
+  addShanghaiDays,
+  parseShanghaiYmd,
+  shanghaiMonthRange,
+  shanghaiWeekRange,
+  shanghaiYearMonth,
+  shanghaiYmd,
+  startOfShanghaiDay,
+} from './shanghai-date';
+
+export const DASHBOARD_GRANULARITIES = ['day', 'week', 'month', 'quarter', 'year'] as const;
+export type DashboardGranularity = (typeof DASHBOARD_GRANULARITIES)[number];
+
+function pad2(n: number): string {
+  return String(n).padStart(2, '0');
+}
+
+export function shanghaiQuarterIndex(d: Date): { year: number; quarter: number } {
+  const [y, m] = shanghaiYmd(d).split('-').map(Number);
+  return { year: y, quarter: Math.ceil(m / 3) };
+}
+
+export function shanghaiQuarterRange(
+  year: number,
+  quarter: number,
+): { start: Date; endExclusive: Date } {
+  const startMonth = (quarter - 1) * 3 + 1;
+  const endMonth = startMonth + 3;
+  const endYear = endMonth > 12 ? year + 1 : year;
+  const em = endMonth > 12 ? endMonth - 12 : endMonth;
+  return {
+    start: new Date(`${year}-${pad2(startMonth)}-01T00:00:00+08:00`),
+    endExclusive: new Date(`${endYear}-${pad2(em)}-01T00:00:00+08:00`),
+  };
+}
+
+export function shanghaiBucketKey(d: Date, grain: DashboardGranularity): string {
+  const ymd = shanghaiYmd(d);
+  const [y, m] = ymd.split('-').map(Number);
+  switch (grain) {
+    case 'day':
+      return ymd;
+    case 'week':
+      return shanghaiYmd(shanghaiWeekRange(d).start);
+    case 'month':
+      return `${y}-${pad2(m)}`;
+    case 'quarter':
+      return `${y}-Q${Math.ceil(m / 3)}`;
+    case 'year':
+      return String(y);
+  }
+}
+
+export function shanghaiBucketLabel(key: string, grain: DashboardGranularity): string {
+  switch (grain) {
+    case 'day':
+      return key.slice(5);
+    case 'week':
+      return `${key.slice(5)}周`;
+    default:
+      return key;
+  }
+}
+
+export type ShanghaiBucket = {
+  key: string;
+  label: string;
+  start: Date;
+  endExclusive: Date;
+};
+
+export function eachShanghaiBuckets(
+  from: Date,
+  to: Date,
+  grain: DashboardGranularity,
+): ShanghaiBucket[] {
+  const startDay = startOfShanghaiDay(from);
+  const endDay = startOfShanghaiDay(to);
+  const out: ShanghaiBucket[] = [];
+
+  if (grain === 'day') {
+    for (let d = startDay; d.getTime() <= endDay.getTime(); d = addShanghaiDays(d, 1)) {
+      const key = shanghaiYmd(d);
+      out.push({
+        key,
+        label: shanghaiBucketLabel(key, grain),
+        start: d,
+        endExclusive: addShanghaiDays(d, 1),
+      });
+    }
+    return out;
+  }
+
+  if (grain === 'week') {
+    let { start } = shanghaiWeekRange(startDay);
+    const lastStart = shanghaiWeekRange(endDay).start;
+    while (start.getTime() <= lastStart.getTime()) {
+      const key = shanghaiYmd(start);
+      const endExclusive = addShanghaiDays(start, 7);
+      out.push({ key, label: shanghaiBucketLabel(key, grain), start, endExclusive });
+      start = endExclusive;
+    }
+    return out;
+  }
+
+  if (grain === 'month') {
+    let { year, month } = shanghaiYearMonth(startDay);
+    const end = shanghaiYearMonth(endDay);
+    while (year < end.year || (year === end.year && month <= end.month)) {
+      const range = shanghaiMonthRange(year, month);
+      const key = `${year}-${pad2(month)}`;
+      out.push({ key, label: key, start: range.start, endExclusive: range.endExclusive });
+      month += 1;
+      if (month > 12) {
+        month = 1;
+        year += 1;
+      }
+    }
+    return out;
+  }
+
+  if (grain === 'quarter') {
+    let { year, quarter } = shanghaiQuarterIndex(startDay);
+    const end = shanghaiQuarterIndex(endDay);
+    while (year < end.year || (year === end.year && quarter <= end.quarter)) {
+      const range = shanghaiQuarterRange(year, quarter);
+      const key = `${year}-Q${quarter}`;
+      out.push({ key, label: key, start: range.start, endExclusive: range.endExclusive });
+      quarter += 1;
+      if (quarter > 4) {
+        quarter = 1;
+        year += 1;
+      }
+    }
+    return out;
+  }
+
+  let year = Number(shanghaiYmd(startDay).slice(0, 4));
+  const endYear = Number(shanghaiYmd(endDay).slice(0, 4));
+  while (year <= endYear) {
+    out.push({
+      key: String(year),
+      label: String(year),
+      start: new Date(`${year}-01-01T00:00:00+08:00`),
+      endExclusive: new Date(`${year + 1}-01-01T00:00:00+08:00`),
+    });
+    year += 1;
+  }
+  return out;
+}
+
+/** 按粒度把日期往前挪一档（日/周/月/季/年），用于环比窗口 */
+export function addShanghaiGrain(d: Date, grain: DashboardGranularity, delta: number): Date {
+  const start = startOfShanghaiDay(d);
+  switch (grain) {
+    case 'day':
+      return addShanghaiDays(start, delta);
+    case 'week':
+      return addShanghaiDays(start, delta * 7);
+    case 'month':
+      return addShanghaiMonths(start, delta);
+    case 'quarter':
+      return addShanghaiMonths(start, delta * 3);
+    case 'year':
+      return addShanghaiMonths(start, delta * 12);
+  }
+}
+
+function addShanghaiMonths(d: Date, delta: number): Date {
+  const [y, m, day] = shanghaiYmd(d).split('-').map(Number);
+  const utc = new Date(Date.UTC(y, m - 1 + delta, 1));
+  const ty = utc.getUTCFullYear();
+  const tm = utc.getUTCMonth() + 1;
+  const last = new Date(Date.UTC(ty, tm, 0)).getUTCDate();
+  return parseShanghaiYmd(`${ty}-${pad2(tm)}-${pad2(Math.min(day, last))}`);
+}
+
+/** 整段起止按粒度回退一档：日窗口昨天~今天 → 前天~昨天 */
+export function previousShanghaiRangeByGrain(
+  from: Date,
+  to: Date,
+  grain: DashboardGranularity,
+): { from: Date; to: Date } {
+  return {
+    from: addShanghaiGrain(from, grain, -1),
+    to: addShanghaiGrain(to, grain, -1),
+  };
+}
+
+/** 环比：(本期 − 上期) / 上期；上期 0 且本期 0 → null；上期 0 且本期 > 0 → 1 */
+export function periodMomRatio(curr: number, prev: number): number | null {
+  if (prev === 0) return curr === 0 ? null : 1;
+  return (curr - prev) / prev;
+}
+
+/** 默认窗口 = 上一档起点 ～ 今天（日=昨天~今天，周=上周一~今天，以此类推） */
+export function defaultShanghaiRange(
+  grain: DashboardGranularity,
+  anchor = new Date(),
+): { from: Date; to: Date } {
+  const to = startOfShanghaiDay(anchor);
+  switch (grain) {
+    case 'day':
+      return { from: addShanghaiDays(to, -1), to };
+    case 'week': {
+      const thisMonday = shanghaiWeekRange(to).start;
+      return { from: addShanghaiDays(thisMonday, -7), to };
+    }
+    case 'month': {
+      const { year, month } = shanghaiYearMonth(to);
+      const prev = month === 1 ? { year: year - 1, month: 12 } : { year, month: month - 1 };
+      return { from: shanghaiMonthRange(prev.year, prev.month).start, to };
+    }
+    case 'quarter': {
+      const { year, quarter } = shanghaiQuarterIndex(to);
+      let y = year;
+      let q = quarter - 1;
+      if (q <= 0) {
+        q = 4;
+        y -= 1;
+      }
+      return { from: shanghaiQuarterRange(y, q).start, to };
+    }
+    case 'year': {
+      const y = Number(shanghaiYmd(to).slice(0, 4));
+      return { from: new Date(`${y - 1}-01-01T00:00:00+08:00`), to };
+    }
+  }
+}
+
+export function defaultShanghaiRangeYmds(
+  grain: DashboardGranularity,
+  anchor = new Date(),
+): { from: string; to: string } {
+  const r = defaultShanghaiRange(grain, anchor);
+  return { from: shanghaiYmd(r.from), to: shanghaiYmd(r.to) };
+}