// add-anniversary.js
const storage = require('../../utils/storage')
const dateUtils = require('../../utils/date')

Page({
  data: {
    anniversaryId: null,
    personId: null,
    personList: [],
    personIndex: 0,
    selectedPerson: '',
    typeList: ['公历生日', '农历生日', '结婚纪念日', '订婚纪念日', '其他纪念日'],
    typeIndex: 0,
    showCustomType: false,
    dateValue: '',
    remindDaysList: ['提前3天', '提前7天', '提前14天', '提前30天', '自定义'],
    remindDaysIndex: 0,
    formData: {
      isLunar: false,
      type: 'birthday',
      customTypeName: '',
      solarYear: '',
      solarMonth: '',
      solarDay: '',
      lunarYear: '',
      lunarMonth: '',
      lunarDay: '',
      importance: 'low',
      remindEnabled: true,
      remindDays: 7,
      remark: ''
    }
  },

  onLoad(options) {
    // 获取人员列表
    const persons = storage.getPersons()
    this.setData({ personList: persons })

    if (options.personId) {
      // 从人员详情页进入
      const index = persons.findIndex(p => p.id === options.personId)
      if (index !== -1) {
        this.setData({ 
          personIndex: index,
          personId: options.personId,
          selectedPerson: persons[index].name
        })
      }
    }

    if (options.id) {
      // 编辑模式
      this.setData({ anniversaryId: options.id })
      this.loadAnniversary(options.id)
    } else {
      // 设置默认日期为今天
      const today = new Date()
      this.setData({
        dateValue: dateUtils.formatDate(today, 'YYYY-MM-DD')
      })
    }
  },

  /**
   * 加载纪念日信息（编辑模式）
   */
  loadAnniversary(id) {
    const anniversaries = storage.getAnniversaries()
    const anniversary = anniversaries.find(a => a.id === id)
    
    if (anniversary) {
      const date = dateUtils.formatDate(
        new Date(anniversary.solarYear, anniversary.solarMonth - 1, anniversary.solarDay),
        'YYYY-MM-DD'
      )
      
      // 设置类型
      const typeIndex = this.getTypeIndex(anniversary.type)
      
      this.setData({
        formData: anniversary,
        dateValue: date,
        typeIndex,
        showCustomType: anniversary.type === 'other'
      })
      
      wx.setNavigationBarTitle({ title: '编辑纪念日' })
    }
  },

  /**
   * 获取类型索引
   */
  getTypeIndex(type) {
    const indexMap = {
      birthday: 0,
      lunar_birthday: 1,
      wedding: 2,
      engagement: 3,
      other: 4
    }
    return indexMap[type] || 0
  },

  /**
   * 选择人员
   */
  onPersonChange(e) {
    const index = parseInt(e.detail.value)
    const person = this.data.personList[index]
    this.setData({
      personIndex: index,
      personId: person.id,
      selectedPerson: person.name
    })
  },

  /**
   * 选择类型
   */
  onTypeChange(e) {
    const index = parseInt(e.detail.value)
    const types = ['birthday', 'lunar_birthday', 'wedding', 'engagement', 'other']
    const isOther = index === 4
    
    this.setData({
      typeIndex: index,
      showCustomType: isOther,
      'formData.type': types[index]
    })
  },

  /**
   * 自定义类型输入
   */
  onCustomTypeInput(e) {
    this.setData({
      'formData.customTypeName': e.detail.value
    })
  },

  /**
   * 日期类型改变
   */
  onDateTypeChange(e) {
    const isLunar = e.detail.value === 'lunar'
    this.setData({
      'formData.isLunar': isLunar
    })
  },

  /**
   * 日期改变
   */
  onDateChange(e) {
    const dateStr = e.detail.value
    const parts = dateStr.split('-')
    
    this.setData({
      dateValue: dateStr,
      'formData.solarYear': parseInt(parts[0]),
      'formData.solarMonth': parseInt(parts[1]),
      'formData.solarDay': parseInt(parts[2])
    })
  },

  /**
   * 重要程度改变
   */
  onImportanceChange(e) {
    this.setData({
      'formData.importance': e.detail.value
    })
  },

  /**
   * 提醒开关改变
   */
  onRemindEnabledChange(e) {
    this.setData({
      'formData.remindEnabled': e.detail.value
    })
  },

  /**
   * 提醒天数改变
   */
  onRemindDaysChange(e) {
    const index = parseInt(e.detail.value)
    const days = [3, 7, 14, 30, 7][index]
    this.setData({
      remindDaysIndex: index,
      'formData.remindDays': days
    })
  },

  /**
   * 备注改变
   */
  onRemarkChange(e) {
    this.setData({
      'formData.remark': e.detail.value
    })
  },

  /**
   * 取消
   */
  onCancel() {
    wx.navigateBack()
  },

  /**
   * 提交
   */
  onSubmit() {
    const { formData, personId, anniversaryId } = this.data

    // 验证关联人员
    if (!personId) {
      wx.showToast({ title: '请选择关联人员', icon: 'none' })
      return
    }

    // 验证日期
    if (!formData.solarYear || !formData.solarMonth || !formData.solarDay) {
      wx.showToast({ title: '请选择日期', icon: 'none' })
      return
    }

    // 验证自定义类型
    if (formData.type === 'other' && !formData.customTypeName) {
      wx.showToast({ title: '请输入自定义类型', icon: 'none' })
      return
    }

    if (anniversaryId) {
      // 编辑模式
      const success = storage.updateAnniversary(anniversaryId, {
        personId,
        ...formData
      })
      
      if (success) {
        wx.showToast({ title: '保存成功', icon: 'success' })
        setTimeout(() => wx.navigateBack(), 1500)
      }
    } else {
      // 新增模式
      const newAnniversary = storage.addAnniversary({
        personId,
        ...formData
      })

      if (newAnniversary) {
        wx.showToast({ title: '添加成功', icon: 'success' })
        setTimeout(() => wx.navigateBack(), 1500)
      }
    }
  }
})