// pages/device/add/add.js
Page({
  data: {
    mode: 'add', // add 或 edit
    deviceId: '',
    form: {
      deviceName: '',
      deviceCode: '',
      specification: '',
      manufacturer: '',
      useUnit: '',
      belongUnit: '',
      location: '',
      responsible: '',
      purchaseDate: '',
      lastInspectionDate: '',
      inspectionCycle: '',
      nextInspectionDate: '',
      remark: ''
    },
    showPicker: false,
    pickerTitle: '',
    pickerData: [],
    pickerValue: [],
    currentField: '',
    showDatePicker: false,
    dateValue: '',
    deviceNames: ['安全帽', '安全带', '绝缘手套', '绝缘鞋', '验电器', '接地线', '安全围栏', '绝缘杆', '绝缘垫', '标示牌'],
    useUnits: ['施工一队', '施工二队', '施工三队', '维护班组', '检修班组']
  },

  onLoad(options) {
    if (options.id && options.mode === 'edit') {
      this.setData({ 
        mode: 'edit',
        deviceId: options.id
      });
      this.loadDeviceData();
    }
  },

  loadDeviceData() {
    // TODO: 加载设备数据
    // 模拟数据
    const mockData = {
      deviceName: '绝缘手套',
      deviceCode: 'SB-2023-001',
      specification: 'YS101-10kV',
      manufacturer: '某某电力设备厂',
      useUnit: '施工一队',
      belongUnit: '电力公司',
      location: '工具仓库A区',
      responsible: '张三',
      purchaseDate: '2022-06-01',
      lastInspectionDate: '2023-06-01',
      inspectionCycle: '12',
      nextInspectionDate: '2024-06-01',
      remark: '该设备即将到期，请及时安排检验'
    };
    this.setData({ form: mockData });
  },

  showPicker(e) {
    const field = e.currentTarget.dataset.field;
    let pickerData = [];
    let pickerTitle = '';
    
    if (field === 'deviceName') {
      pickerData = this.data.deviceNames.map(name => ({ label: name, value: name }));
      pickerTitle = '选择设备名称';
    } else if (field === 'useUnit') {
      pickerData = this.data.useUnits.map(unit => ({ label: unit, value: unit }));
      pickerTitle = '选择使用单位';
    }
    
    this.setData({
      showPicker: true,
      pickerData,
      pickerTitle,
      currentField: field
    });
  },

  onPickerConfirm(e) {
    const { value } = e.detail;
    const field = this.data.currentField;
    const selectedValue = this.data.pickerData[value[0]].value;
    
    this.setData({
      [`form.${field}`]: selectedValue,
      showPicker: false
    });
  },

  onPickerCancel() {
    this.setData({ showPicker: false });
  },

  showDatePicker(e) {
    const field = e.currentTarget.dataset.field;
    const currentValue = this.data.form[field] || new Date().getTime();
    
    this.setData({
      showDatePicker: true,
      dateValue: currentValue,
      currentField: field
    });
  },

  onDateConfirm(e) {
    const timestamp = e.detail.value;
    const date = new Date(timestamp);
    const dateStr = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`;
    
    this.setData({
      [`form.${this.data.currentField}`]: dateStr,
      showDatePicker: false
    });
  },

  onDateCancel() {
    this.setData({ showDatePicker: false });
  },

  submitForm() {
    const { form, mode } = this.data;
    
    // 验证必填项
    if (!form.deviceName) {
      wx.showToast({ title: '请选择设备名称', icon: 'none' });
      return;
    }
    if (!form.deviceCode) {
      wx.showToast({ title: '请输入设备编号', icon: 'none' });
      return;
    }
    if (!form.useUnit) {
      wx.showToast({ title: '请选择使用单位', icon: 'none' });
      return;
    }
    if (!form.lastInspectionDate) {
      wx.showToast({ title: '请选择上次检验日期', icon: 'none' });
      return;
    }
    if (!form.nextInspectionDate) {
      wx.showToast({ title: '请选择下次检验日期', icon: 'none' });
      return;
    }
    
    // TODO: 提交数据到后端或本地存储
    wx.showToast({
      title: mode === 'edit' ? '保存成功' : '添加成功',
      icon: 'success'
    });
    
    setTimeout(() => {
      wx.navigateBack();
    }, 1500);
  }
});