import type { StoragePort } from './storage';
import type { FlowStats } from './flow';
export const FLOW_SAVE_KEY = 'mode:02-connect-1234:balloons-v2';
export interface FlowRecord { version: 2; bestScore: number; bestNumber: number; bestCombo: number; bestFlown: number; sound: boolean }
export function freshRecord(): FlowRecord { return { version: 2, bestScore: 0, bestNumber: 0, bestCombo: 0, bestFlown: 0, sound: true }; }
export function loadRecord(storage: StoragePort): FlowRecord {
  const result = freshRecord();
  try {
    const saved = JSON.parse(storage.read(FLOW_SAVE_KEY) || 'null');
    if (saved?.version !== 2) return result;
    for (const key of ['bestScore', 'bestNumber', 'bestCombo', 'bestFlown'] as const)
      if (Number.isSafeInteger(saved[key]) && saved[key] >= 0) result[key] = saved[key];
    if (typeof saved.sound === 'boolean') result.sound = saved.sound;
  } catch { /* 损坏或不可用存储不影响游玩 */ }
  return result;
}
export function recordRound(record: FlowRecord, stats: FlowStats): void {
  record.bestScore = Math.max(record.bestScore, stats.score);
  record.bestNumber = Math.max(record.bestNumber, stats.maxNumber);
  record.bestCombo = Math.max(record.bestCombo, stats.bestCombo);
  record.bestFlown = Math.max(record.bestFlown, stats.flown);
}
export function saveRecord(storage: StoragePort, record: FlowRecord): boolean {
  try { storage.write(FLOW_SAVE_KEY, JSON.stringify(record)); return true; } catch { return false; }
}