// pages/achievements/achievements — 7 完整成就页（两入口共用，docs/05 R10）
const { call } = require('../../utils/cloud.js');
const { ACHIEVEMENTS, TOTAL } = require('../../utils/achievements.js');
const { toDateStr } = require('../../utils/format.js');

Page({
  data: {
    dogId: '',
    dogName: '',
    unlockedCount: 0,
    total: TOTAL,
    unlockedList: [],
    lockedList: [],
  },

  onLoad(o) { this.dogId = o.dogId || ''; },
  onShow() { if (this.dogId) this.load(); },

  async load() {
    const res = await call('getDogDetail', { dogId: this.dogId });
    if (!res.ok) return;
    const dog = res.data.dog;
    const stats = dog.stats || { totalWalks: 0, totalDistance: 0, currentStreak: 0 };

    const unlockedAtMap = {};
    res.data.achievements.unlocked.forEach((u) => { unlockedAtMap[u.achievementKey] = u.unlockedAt; });

    const unlockedList = [];
    const lockedList = [];
    ACHIEVEMENTS.forEach((a) => {
      if (unlockedAtMap[a.key] != null) {
        unlockedList.push({ key: a.key, name: a.name, desc: a.desc, when: toDateStr(unlockedAtMap[a.key]) });
      } else {
        lockedList.push({ key: a.key, name: a.name, desc: this.lockedDesc(a, stats) });
      }
    });

    this.setData({
      dogName: dog.name,
      unlockedCount: unlockedList.length,
      total: res.data.achievements.total,
      unlockedList,
      lockedList,
    });
  },

  // 「还差 X」进度文案
  lockedDesc(a, stats) {
    const streak = stats.currentStreak || 0;
    const dist = stats.totalDistance || 0;
    const early = stats.earlyWalks || 0;
    switch (a.key) {
      case 'week_streak': return `连续遛狗满 7 天 · 还差 ${Math.max(0, 7 - streak)} 天`;
      case 'month_streak': return `连续遛狗满 30 天 · 还差 ${Math.max(0, 30 - streak)} 天`;
      case 'hundred_km': return `累计满 100 公里 · 还差 ${Math.max(0, +(100 - dist).toFixed(1))} km`;
      case 'early_bird': return `7 点前遛狗 10 次 · 还差 ${Math.max(0, 10 - early)} 次`;
      default: return a.desc;
    }
  },
});