puzzle-trainer/lib/stats.ts
2026-05-23 01:05:21 +00:00

87 lines
3.3 KiB
TypeScript

export interface GameStats {
streak: number;
lastDate: string; // ISO date YYYY-MM-DD of last solve
total: number;
bestTime: number; // seconds, 0 = never recorded
lastTime: number; // seconds for the most recent solve (0 if none)
solvedDates: string[]; // history of solved ISO dates (for heatmap)
}
const DEFAULT: GameStats = { streak: 0, lastDate: "", total: 0, bestTime: 0, lastTime: 0, solvedDates: [] };
function storageKey(game: string) { return `stats-${game}`; }
export function loadStats(game: string): GameStats {
if (typeof window === "undefined") return DEFAULT;
try {
const raw = localStorage.getItem(storageKey(game));
if (!raw) return DEFAULT;
return { ...DEFAULT, ...JSON.parse(raw) };
} catch { return DEFAULT; }
}
export function recordSolve(game: string, date: string, secs: number): GameStats {
const prev = loadStats(game);
// Compute yesterday ISO using local-date arithmetic (avoids UTC offset bug)
const [y, m, d] = date.split("-").map(Number);
const prev2 = new Date(y, m - 1, d - 1);
const yesterdayISO = `${prev2.getFullYear()}-${String(prev2.getMonth() + 1).padStart(2, "0")}-${String(prev2.getDate()).padStart(2, "0")}`;
let streak = prev.streak;
if (prev.lastDate === date) {
// Already solved today — don't double-count streak
} else if (prev.lastDate === yesterdayISO) {
streak += 1;
} else {
streak = 1;
}
// Build solved dates history (keep last 120 days, no duplicates)
const prevDates = prev.solvedDates ?? [];
const solvedDates = prevDates.includes(date) ? prevDates : [...prevDates, date].slice(-120);
const stats: GameStats = {
streak,
lastDate: date,
total: prev.lastDate === date ? prev.total : prev.total + 1,
bestTime: prev.bestTime === 0 || secs < prev.bestTime ? secs : prev.bestTime,
lastTime: secs,
solvedDates,
};
localStorage.setItem(storageKey(game), JSON.stringify(stats));
return stats;
}
// ── Ritual streak (global: all 5 games solved in a day) ───────────────────────
export interface RitualStats {
streak: number; // consecutive days with all 5 solved
lastDate: string; // last day all 5 were solved
}
const RITUAL_KEY = "stats-ritual";
export function getRitualStreak(): RitualStats {
if (typeof window === "undefined") return { streak: 0, lastDate: "" };
try {
const raw = localStorage.getItem(RITUAL_KEY);
return raw ? { ...{ streak: 0, lastDate: "" }, ...JSON.parse(raw) } : { streak: 0, lastDate: "" };
} catch { return { streak: 0, lastDate: "" }; }
}
/** Call this when all 5 games are confirmed solved today. Updates global ritual streak. */
export function updateRitualStreak(date: string): RitualStats {
if (typeof window === "undefined") return { streak: 0, lastDate: "" };
const prev = getRitualStreak();
if (prev.lastDate === date) return prev; // already counted today
const [y, m, d] = date.split("-").map(Number);
const yesterday = new Date(y, m - 1, d - 1);
const yesterdayISO = `${yesterday.getFullYear()}-${String(yesterday.getMonth() + 1).padStart(2, "0")}-${String(yesterday.getDate()).padStart(2, "0")}`;
const streak = prev.lastDate === yesterdayISO ? prev.streak + 1 : 1;
const updated: RitualStats = { streak, lastDate: date };
localStorage.setItem(RITUAL_KEY, JSON.stringify(updated));
return updated;
}