58 lines
1.5 KiB
TypeScript
58 lines
1.5 KiB
TypeScript
import { addDays } from "date-fns";
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import { decodeTime } from "ulid";
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import { getDailyStats } from "./dailyStatsStore.ts";
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import { generationStore } from "./generationStore.ts";
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export interface GlobalStats {
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userIds: number[];
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imageCount: number;
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stepCount: number;
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pixelCount: number;
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pixelStepCount: number;
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timestamp: number;
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}
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export const globalStats: GlobalStats = await getGlobalStats();
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async function getGlobalStats(): Promise<GlobalStats> {
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// find the year/month/day of the first generation
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const startDate = await generationStore.getAll({}, { limit: 1 })
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.then((generations) => generations[0]?.id)
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.then((generationId) => generationId ? new Date(decodeTime(generationId)) : new Date());
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// iterate to today and sum up stats
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const userIdSet = new Set<number>();
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let imageCount = 0;
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let stepCount = 0;
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let pixelCount = 0;
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let pixelStepCount = 0;
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const tomorrow = addDays(new Date(), 1);
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for (
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let date = startDate;
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date < tomorrow;
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date = addDays(date, 1)
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) {
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const dailyStats = await getDailyStats(
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date.getUTCFullYear(),
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date.getUTCMonth() + 1,
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date.getUTCDate(),
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);
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for (const userId of dailyStats.userIds) userIdSet.add(userId);
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imageCount += dailyStats.imageCount;
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stepCount += dailyStats.stepCount;
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pixelCount += dailyStats.pixelCount;
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pixelStepCount += dailyStats.pixelStepCount;
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}
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return {
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userIds: [...userIdSet],
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imageCount,
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stepCount,
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pixelCount,
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pixelStepCount,
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timestamp: Date.now(),
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};
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}
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