/** 缓存中的用户信息 */
interface StorageUserInfo {
    userId: string
    realname: string
    sex: number
    height: number
    birthday: string
    [key: string]: any
}

/** 页面展示用用户信息 */
interface PageUserInfo {
    realname: string
    sex_dictText: '男' | '女' | ''
    age: number
    height: number
}

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

Page({
    data: {
        userInfo: null as PageUserInfo | null,
    },

    onLoad() {
        const raw = wx.getStorageSync('userInfo') as StorageUserInfo | null
        if (!raw?.userId) return
        const userInfo: PageUserInfo = {
            realname: raw.realname ?? '',
            sex_dictText: raw.sex === 1 ? '男' : raw.sex === 2 ? '女' : '',
            age: calcAge(raw.birthday),
            height: raw.height ?? 0,
        }
        this.setData({ userInfo })
    },

    onShareAppMessage(): WechatMiniprogram.Page.ICustomShareContent {
        return {
            title: '智能蓝牙秤',
            path: '/pages/home/home',
            imageUrl: '/images/share/share.jpg',
        }
    },
})