// L2 overlay 面板数据加载：把 index.ts 中的面板数据构造抽出来，让入口文件只负责注册。

import { getLocalDateString } from "./date-utils.ts";
import { readDaySummary } from "./day-cache.ts";
import { t } from "./locale.ts";
import { reportLabelsFor } from "./report-labels.ts";
import { scanSessions } from "./session-scan.ts";
import { buildTodayReportFromSessions } from "./insights.ts";
import { filterAuditUsage, rollupAuditUsage, scanAuditUsage } from "./audit-usage.ts";
import { filterDteamUsage, rollupDteamUsage, scanDteamUsage } from "./dteam-usage.ts";
import type { UiLocale } from "./types.ts";

export interface PanelDataPayload {
	numericTitle: string;
	numericBody: string;
	dailyTitle: string;
	dailyBody: string;
	dailyPreviewHint: string;
}

export async function loadInsightsPanelData(locale: UiLocale, now: Date): Promise<PanelDataPayload> {
	const todayStart = new Date(now.getFullYear(), now.getMonth(), now.getDate()).getTime();
	const todayRange = { label: "today", since: todayStart, until: now.getTime() + 1 };
	const yesterdayDate = new Date(now);
	yesterdayDate.setDate(yesterdayDate.getDate() - 1);
	const yesterday = getLocalDateString(yesterdayDate);
	const [{ sessions }, cachedDaily, auditRecords, dteamRecords] = await Promise.all([
		scanSessions({ entryRange: todayRange }),
		readDaySummary(yesterday),
		scanAuditUsage(),
		scanDteamUsage(),
	]);
	const numeric = buildTodayReportFromSessions(
		sessions,
		locale,
		now,
		rollupAuditUsage(filterAuditUsage(auditRecords, todayRange)),
		rollupDteamUsage(filterDteamUsage(dteamRecords, todayRange)),
	);
	return {
		numericTitle: numeric.title,
		numericBody: numeric.body,
		dailyTitle: reportLabelsFor(locale).reportTitle(yesterday),
		dailyBody: cachedDaily?.reportMarkdown || t(locale, "dailyPreviewUnavailable"),
		dailyPreviewHint: t(locale, "dailyPreviewHint"),
	};
}