import { get, put } from '../../utils/request/index'
import { lefuService } from '../../lefu/index'

/** GET /weighingScale/v3/getUserInfoByIdcard 返回的 result 结构 */
interface UserInfoFromServer {
	id: string | null
	userId: string
	parentUserId: string | null
	scaleDeviceId: string
	deviceId: string | null
	deviceType: string
	dataType: number
	userType: string | null
	idCard: string
	height: number
	weight: number
	birthday: string
	sex: number
	avatar: string | null
	phone: string
	thirdId: string | null
	realname: string
	bmi: number
	workNo: string
	remark: string | null
	relationType: string | null
	sn: string
	delFlag: number
	sex_dictText: string
}

/** 表单数据模型 */
interface MemberForm {
	name: string
	idCard: string
	gender: string
	age: string
	height: string
	weight: string
	/** 1=男 2=女 */
	sex: number
}

/** 身份证解析结果 */
interface IdCardParsed {
	gender: string
	age: string
	sex: number
	birthday: string
}

/**
 * 编辑用户页
 * 根据用户 dataType 区分非家庭/家庭两种编辑模式
 */
Page({
	data: {
		userId: '',
		/** dataType === 1 为家庭用户 */
		isFamily: false,
		/** 单位（非家庭用户） */
		unitDisplay: '',
		/** 出生年月 YYYY-MM-DD（家庭用户） */
		birthday: '',
		/** 接口返回的原始用户数据，提交时以此为 base 覆盖修改字段 */
		rawUser: null as Record<string, any> | null,
		/** 正在请求身份证查询接口 */
		querying: false,
		/** 是否已完成一次身份证查询 */
		hasQueried: false,
		/** 接口返回的用户信息 */
		serverResult: null as UserInfoFromServer | null,
		/** 表单只读状态（code=101 时置为 true） */
		readonly: false,
		/** 是否显示确认弹框 */
		showConfirmModal: false,

		form: {
			name: '',
			idCard: '',
			gender: '',
			age: '',
			height: '',
			weight: '',
			sex: 0,
		} as MemberForm,
	},

	onLoad(options: Record<string, string>) {
		const { userId } = options
		if (!userId) {
			wx.showToast({ title: '缺少用户信息', icon: 'none' })
			setTimeout(() => wx.navigateBack(), 1500)
			return
		}
		this.setData({ userId })
		get<Record<string, any>>('weighingScale/v3/select/userinfo/byId', { id: userId }, { loading: true })
			.then((res: any) => {
				const u = res.result
				if (!u) return
				const isFamily = u.dataType === 1
				const sex = u.sex ?? 0
				const gender = sex === 1 ? '男' : sex === 2 ? '女' : ''
				const age = this.calcAge(u.birthday ?? '')

				this.setData({
					rawUser: u,
					isFamily,
					unitDisplay: [u.secondDepart, u.thirdDepart].filter(Boolean).join(' / '),
					birthday: u.birthday ?? '',
					'form.name': u.realname ?? '',
					'form.idCard': u.idCard ?? '',
					'form.gender': gender,
					'form.age': String(age),
					'form.height': String(u.height ?? ''),
					'form.weight': String(u.weight ?? ''),
					'form.sex': sex,
				})
			})
			.catch(() => {
				wx.showToast({ title: '加载用户信息失败', icon: 'none' })
			})
	},

	/** 从生日字符串计算周岁 */
	calcAge(birthday: string): number {
		if (!birthday) return 0
		const parts = birthday.split('-').map(Number)
		const [year, month, day] = parts
		if (!year || !month || !day) return 0
		const now = new Date()
		let age = now.getFullYear() - year
		const nowMonth = now.getMonth() + 1
		const nowDay = now.getDate()
		if (nowMonth < month || (nowMonth === month && nowDay < day)) age -= 1
		return Math.max(0, age)
	},

	onNameInput(e: WechatMiniprogram.Input) {
		const name = e.detail.value
		this.setData({
			'form.name': name,
			'form.gender': '',
			'form.age': '',
			serverResult: null,
			hasQueried: false,
			readonly: false
		})
		if (this.data.isFamily && name.trim() && this.isIdCardValid(this.data.form.idCard)) {
			this.fetchUserInfoByIdCard(name.trim(), this.data.form.idCard)
		}
	},

	onIdCardInput(e: WechatMiniprogram.Input) {
		const idCard = (e.detail.value || '').trim().toUpperCase()
		this.setData({
			'form.idCard': idCard,
			'form.gender': '',
			'form.age': '',
			serverResult: null,
			hasQueried: false,
			readonly: false
		})
		if (this.data.isFamily && this.data.form.name.trim() && this.isIdCardValid(idCard)) {
			this.fetchUserInfoByIdCard(this.data.form.name.trim(), idCard)
		}
	},

	/** 家庭用户性别切换 */
	onGenderTap(e: WechatMiniprogram.TouchEvent) {
		const value = e.currentTarget.dataset.value as string
		const sex = value === '男' ? 1 : 2
		this.setData({
			'form.gender': value,
			'form.sex': sex,
		})
	},

	onHeightInput(e: WechatMiniprogram.Input) {
		this.setData({ 'form.height': e.detail.value })
	},

	onWeightInput(e: WechatMiniprogram.Input) {
		this.setData({ 'form.weight': e.detail.value })
	},

	isIdCardValid(idCard: string): boolean {
		return /^\d{17}[\dX]$/.test(idCard)
	},

	parseIdCard(idCard: string): IdCardParsed {
		const empty: IdCardParsed = { gender: '', age: '', sex: 0, birthday: '' }
		if (!this.isIdCardValid(idCard)) return empty

		const genderCode = parseInt(idCard.charAt(16), 10)
		const sex = genderCode % 2 === 1 ? 1 : 2
		const gender = sex === 1 ? '男' : '女'

		const year = parseInt(idCard.substr(6, 4), 10)
		const month = parseInt(idCard.substr(10, 2), 10)
		const day = parseInt(idCard.substr(12, 2), 10)
		if (!year || month < 1 || month > 12 || day < 1 || day > 31) return empty

		const now = new Date()
		let age = now.getFullYear() - year
		if (now.getMonth() + 1 < month || (now.getMonth() + 1 === month && now.getDate() < day)) age -= 1
		if (age < 0 || age > 150) return empty

		const mm = String(month).padStart(2, '0')
		const dd = String(day).padStart(2, '0')
		return { gender, age: String(age), sex, birthday: `${year}-${mm}-${dd}` }
	},

	fetchUserInfoByIdCard(name: string, idCard: string) {
		if (this.data.querying) return
		this.setData({ querying: true, serverResult: null, hasQueried: false })

		get<any>('weighingScale/v3/getUserInfoByIdcard', {
			sn: lefuService.deviceInfo?.serialNumber ?? '',
			idCard,
			realname: name
		}, { loading: true })
			.then(res => {
				const serverResult = res.result
				if (!serverResult) {
					wx.showToast({ title: res.message || '未查询到用户信息', icon: 'none' })
					const parsed = this.parseIdCard(idCard)
					this.setData({
						hasQueried: true,
						'form.gender': parsed.gender,
						'form.age': parsed.age,
					})
					return
				}
				if (serverResult.flag == 101) {
					const parsed = this.parseIdCard(serverResult.idCard)
					this.setData({
						serverResult,
						hasQueried: true,
						readonly: true,
						showConfirmModal: true,
						'form.name': serverResult.realname ?? '',
						'form.idCard': serverResult.idCard ?? '',
						'form.gender': parsed.gender,
						'form.age': parsed.age,
						'form.height': serverResult.height ? String(serverResult.height) : '',
						'form.weight': serverResult.weight ? String(serverResult.weight) : ''
					})
					return
				}
				if (serverResult.flag === null) {
					const parsed = this.parseIdCard(serverResult.idCard)
					const data: Record<string, any> = {
						serverResult,
						hasQueried: true,
						'form.gender': parsed.gender,
						'form.age': parsed.age
					}
					if (serverResult.height) {
						data['form.height'] = String(serverResult.height)
					}
					if (serverResult.weight) {
						data['form.weight'] = String(serverResult.weight)
					}
					this.setData(data)
				}
			})
			.catch(() => {})
			.finally(() => {
				this.setData({ querying: false })
			})
	},

	onConfirmModalConfirm() {
		this.setData({ showConfirmModal: false })
		this.onSubmit()
	},

	onConfirmModalCancel() {
		this.setData({
			showConfirmModal: false,
			readonly: false,
			'form.name': '',
			'form.idCard': '',
			'form.gender': '',
			'form.age': '',
			'form.height': '',
			'form.weight': '',
			serverResult: null,
			hasQueried: false,
		})
	},

	/** 出生年月变更，同步更新年龄 */
	onBirthdayChange(e: WechatMiniprogram.PickerChange) {
		const birthday = e.detail.value as string
		const age = this.calcAge(birthday)
		this.setData({
			birthday,
			'form.age': String(age),
		})
	},

	onCancel() {
		wx.navigateBack()
	},

	onSubmit() {
		const { name, idCard, gender, height, weight, sex } = this.data.form
		const { isFamily, rawUser } = this.data
		const heightNum = parseFloat(height)
		const weightNum = parseFloat(weight)

		// 昵称（仅家庭用户必填）
		if (isFamily && !name.trim()) {
			wx.showToast({ title: '请填写昵称', icon: 'none' })
			return
		}
		// 家庭用户性别必选
		if (isFamily && !gender) {
			wx.showToast({ title: '请选择性别', icon: 'none' })
			return
		}
		// 家庭用户出生年月必填
		if (isFamily && !this.data.birthday.trim()) {
			wx.showToast({ title: '请填写出生年月', icon: 'none' })
			return
		}
		if (!height || isNaN(heightNum) || heightNum <= 0) {
			wx.showToast({ title: '请填写身高', icon: 'none' })
			return
		}

		const connectDeviceInfoRaw = wx.getStorageSync('connectDeviceInfo')

		// 以接口原始返回 + 身份证查询结果为 base，覆盖编辑后的字段
		const serverResult = this.data.serverResult
		const payload: Record<string, any> = {
			...(rawUser ?? {}),
			...(serverResult ?? {}),
			id: this.data.userId,
			realname: name.trim(),
			idCard,
			sex,
			birthday: this.data.birthday,
			height: heightNum,
			weight: isNaN(weightNum) ? 0 : weightNum,
			connectDeviceInfo: connectDeviceInfoRaw ? JSON.stringify(connectDeviceInfoRaw) : (rawUser?.connectDeviceInfo ?? ''),
		}

		put('weighingScale/v5/edit/user', payload)
			.then(() => {
				wx.showToast({ title: '保存成功', icon: 'success' })
				setTimeout(() => {
					const pages = getCurrentPages()
					const prevPage = pages[pages.length - 2] as any
					if (prevPage && prevPage.data?.sn) {
						prevPage._loadData(prevPage.data.sn)
					}
					wx.navigateBack()
				}, 1500)
			})
			.catch(() => {
				wx.showToast({ title: '保存失败，请重试', icon: 'none' })
			})
	}
})