const auth = require('../../../utils/auth');
const { formatDateTime } = require('../../../utils/format');

function genderText(v) {
  if (v === '男' || v === '女') return v;
  const n = Number(v);
  if (n === 0) return '男';
  if (n === 1) return '女';
  if (n === 2) return '未知';
  return v != null && v !== '' ? String(v) : '—';
}

function safeNumber(v, fallback = 0) {
  const n = Number(v);
  return Number.isNaN(n) ? fallback : n;
}

function normalizeMember(m) {
  const mm = m && typeof m === 'object' ? m : {};
  const id = mm.id != null ? mm.id : mm.Id;
  const name = mm.name || mm.Name || '—';
  const gender = genderText(mm.gender != null ? mm.gender : mm.Gender);
  const age = mm.age != null ? safeNumber(mm.age, '—') : mm.Age != null ? safeNumber(mm.Age, '—') : '—';
  return { id: id != null ? id : `${name}-${gender}-${age}`, name, gender, age };
}

function normalizeTeamDetail(raw) {
  const d = raw && typeof raw === 'object' ? raw : {};
  const leader = d.leader && typeof d.leader === 'object' ? d.leader : null;
  const coach = d.coach && typeof d.coach === 'object' ? d.coach : null;
  const membersRaw = (Array.isArray(d.members) ? d.members : []).filter(m => {
    const pt = m && (m.personType != null ? m.personType : m.PersonType);
    return Number(pt) === 1;
  });

  const createdTime = d.createdTime || d.CreatedTime || d.createTime || d.CreateTime || '';

  return {
    id: d.id != null ? d.id : d.Id,
    name: d.name || d.Name || '—',
    memberCount: safeNumber(d.memberCount != null ? d.memberCount : d.MemberCount, membersRaw.length),
    leaderName: (leader && (leader.name || leader.Name)) || d.leaderName || d.LeaderName || '',
    coachName: (coach && (coach.name || coach.Name)) || d.coachName || d.CoachName || '',
    createdTimeStr: createdTime ? formatDateTime(String(createdTime)) : '-',
    members: membersRaw.map(normalizeMember)
  };
}

Page({
  data: {
    id: null,
    loading: false,
    detail: {
      name: '',
      memberCount: 0,
      leaderName: '',
      coachName: '',
      createdTimeStr: '',
      members: []
    }
  },

  onLoad(options) {
    const id = options && options.id ? Number(options.id) : null;
    this.setData({ id });
    if (!id) {
      wx.showToast({ title: '缺少团队ID', icon: 'none' });
      return;
    }
    this.loadDetail(id);
  },

  async loadDetail(id) {
    if (this.data.loading) return;
    this.setData({ loading: true });
    try {
      const res = await auth.fetchMyTeamDetail(id);
      const detail = normalizeTeamDetail(res);
      this.setData({ detail });
    } catch (err) {
      wx.showToast({ title: err?.message || '加载失败', icon: 'none' });
    } finally {
      this.setData({ loading: false });
    }
  },

  onBack() {
    if (getCurrentPages().length > 1) {
      wx.navigateBack();
    } else {
      wx.navigateTo({ url: '/subpackages/mine/team/team' });
    }
  }
});