/**
 * 每日胜场：战斗胜利 +1，跨天清零并归档至 yesterdayWins。
 */
export class DailyWinStats {
    /** 今日胜场（跨天自动清零） */
    static getTodayWins(): number {
        this.ensureToday();
        return Math.max(0, Math.floor(Number(gg.data.doc?.dailyWins) || 0));
    }

    /** 昨日胜场 */
    static getYesterdayWins(): number {
        this.ensureToday();
        return Math.max(0, Math.floor(Number(gg.data.doc?.yesterdayWins) || 0));
    }

    /** 今日日期键 YYYYMMDD（与存档 dailyWinsDate 一致） */
    static todayKey(): string {
        return this._todayKey();
    }

    /** 日榜 expiredate：YYYY-MM-DD，当日 23:59:59 退出，避免跨天沿用旧分 */
    static expireDateToday(): string {
        const k = this._todayKey();
        if (k.length < 8) {
            console.log('[DailyWinStats] 日期键非法', k);
            return '';
        }
        return `${k.slice(0, 4)}-${k.slice(4, 6)}-${k.slice(6, 8)}`;
    }

    /** 读档 / 打开界面前确保日期一致 */
    static ensureToday(): void {
        const today = this._todayKey();
        const saved = String(gg.data.doc?.dailyWinsDate ?? '').trim();
        if (saved === today) return;

        const prevWins = Math.max(0, Math.floor(Number(gg.data.doc?.dailyWins) || 0));
        if (saved) {
            gg.data.doc.yesterdayWins = prevWins;
        }
        gg.data.doc.dailyWins = 0;
        gg.data.doc.dailyWinsDate = today;
        gg.data.doc.rankLastSyncDailyWins = -1;
        gg.data.doc.rankLastSyncDailyWinsDate = '';
        gg.data.saveLocal();
    }

    /** 跨天回调（GameData.onFirstLoginToday） */
    static onCrossDay(): void {
        this.ensureToday();
    }

    /**
     * 战斗胜利 +1
     * @param opts.save 是否立即写本地档
     */
    static recordWin(opts?: { save?: boolean }): void {
        this.ensureToday();
        gg.data.doc.dailyWins = this.getTodayWins() + 1;
        if (opts?.save !== false) gg.data.saveLocal();
    }

    private static _todayKey(): string {
        const d = new Date(gg.data.getCurentTime2());
        const y = d.getFullYear();
        const m = `${d.getMonth() + 1}`.padStart(2, '0');
        const day = `${d.getDate()}`.padStart(2, '0');
        return `${y}${m}${day}`;
    }
}