var app = getApp()

Page({
  data: {
    persons: [],
    personNames: [],
    currentPersonName: "",
    currentPersonIndex: 0,
    showAddInput: false,
    newPersonName: "",
    showForceModal: false,
    forceName: "",
    showPersonModal: false,
    editingPersonId: "",
    editingPersonName: ""
  },

  onShow: function () {
    this.refreshView()
  },

  refreshView: function () {
    var persons = app.globalData.persons
    var names = persons.map(function (p) { return p.name })
    var person = app.getCurrentPerson()
    var idx = persons.findIndex(function (p) { return p && person && p.id === person.id })
    this.setData({
      persons: persons,
      personNames: names,
      currentPersonName: person ? person.name : "",
      currentPersonIndex: idx >= 0 ? idx : 0
    })
    if (persons.length === 0) {
      this.setData({ showForceModal: true })
    } else {
      this.setData({ showForceModal: false })
    }
  },

  noop: function () {},

  goEntry: function () {
    wx.navigateTo({ url: '/pages/entry/entry' })
  },
  goItems: function () {
    wx.navigateTo({ url: '/pages/items/items' })
  },
  goTrend: function () {
    wx.navigateTo({ url: '/pages/trend/trend' })
  },
  goDetails: function () {
    wx.navigateTo({ url: '/pages/details/details' })
  },

  onClearAll: function () {
    var that = this
    wx.showModal({
      title: "⚠️ 危险操作",
      content: "确定要清除「" + this.data.currentPersonName + "」的所有检查记录吗？\n此操作将删除所有历史数据，但保留检查项目，且不可恢复！",
      confirmText: "确认清除",
      confirmColor: "#e53e3e",
      success: function (res) {
        if (!res.confirm) return
        var data = app.getCurrentData()
        data.records = []
        app.saveData()
        wx.showToast({ title: "已清除全部记录", icon: "success", duration: 1500 })
      }
    })
  },

  // ===== 切换用户 =====
  onSwitchPerson: function (e) {
    var idx = parseInt(e.detail.value)
    var persons = this.data.persons
    if (idx === this.data.currentPersonIndex) return
    var person = persons[idx]
    if (!person) return
    app.switchPerson(person.id)
    this.refreshView()
    wx.showToast({ title: "已切换至" + person.name, icon: "success", duration: 1000 })
  },

  // ===== 新增用户（首页行内） =====
  onShowAddInput: function () {
    this.setData({ showAddInput: true, newPersonName: "" })
  },

  onCancelAddPerson: function () {
    this.setData({ showAddInput: false, newPersonName: "" })
  },

  onAddNameInput: function (e) {
    this.setData({ newPersonName: e.detail.value })
  },

  onConfirmAddPerson: function () {
    var name = this.data.newPersonName.trim()
    if (!name) {
      wx.showToast({ title: "请输入用户名", icon: "none" })
      return
    }
    if (name.length > 10) {
      wx.showToast({ title: "用户名最多10个字符", icon: "none" })
      return
    }
    app.addPerson(name)
    app.switchPerson(app.globalData.persons[app.globalData.persons.length - 1].id)
    this.setData({ showAddInput: false, newPersonName: "" })
    this.refreshView()
    wx.showToast({ title: "已添加" + name, icon: "success", duration: 1000 })
  },

  // ===== 强制创建首个用户（无用户弹窗） =====
  onForceNameInput: function (e) {
    this.setData({ forceName: e.detail.value })
  },

  onConfirmForceCreate: function () {
    var name = this.data.forceName.trim()
    if (!name) {
      wx.showToast({ title: "请先创建用户", icon: "none" })
      return
    }
    if (name.length > 10) {
      wx.showToast({ title: "用户名最多10个字符", icon: "none" })
      return
    }
    var id = app.addPerson(name)
    app.switchPerson(id)
    this.setData({ showForceModal: false, forceName: "" })
    this.refreshView()
    wx.showToast({ title: "欢迎，" + name, icon: "success", duration: 1200 })
  },

  onCancelForceCreate: function () {
    // 取消了，但仍无用户，弹窗不退
    wx.showToast({ title: "请先创建用户", icon: "none" })
  },

  // ===== 用户管理弹窗（重命名/删除） =====
  onTogglePersonModal: function () {
    this.setData({
      showPersonModal: !this.data.showPersonModal,
      editingPersonId: "",
      editingPersonName: ""
    })
  },

  onStartRename: function (e) {
    var id = e.currentTarget.dataset.id
    var person = this.data.persons.find(function (p) { return p.id === id })
    this.setData({
      editingPersonId: id,
      editingPersonName: person ? person.name : ""
    })
  },

  onEditNameInput: function (e) {
    this.setData({ editingPersonName: e.detail.value })
  },

  onConfirmRename: function () {
    var name = this.data.editingPersonName.trim()
    if (!name) {
      wx.showToast({ title: "请输入新名称", icon: "none" })
      return
    }
    if (name.length > 10) {
      wx.showToast({ title: "用户名最多10个字符", icon: "none" })
      return
    }
    app.renamePerson(this.data.editingPersonId, name)
    this.setData({ editingPersonId: "", editingPersonName: "" })
    this.refreshView()
    wx.showToast({ title: "已重命名", icon: "success", duration: 1000 })
  },

  onDeletePerson: function (e) {
    var id = e.currentTarget.dataset.id
    var person = this.data.persons.find(function (p) { return p.id === id })
    if (!person) return
    var that = this
    wx.showModal({
      title: "确认删除",
      content: "确定删除用户「" + person.name + "」吗？\n该用户的所有数据将被永久删除。",
      confirmColor: "#e53e3e",
      success: function (res) {
        if (!res.confirm) return
        app.removePerson(id)
        that.setData({ editingPersonId: "", editingPersonName: "" })
        // 删完后如无用户，关闭管理弹窗并强制展示创建弹窗
        if (app.globalData.persons.length === 0) {
          that.setData({ showPersonModal: false })
        }
        that.refreshView()
        wx.showToast({ title: "已删除", icon: "success", duration: 1000 })
      }
    })
  }
})