import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { notification } from 'ant-design-vue'
import { loginApi, refreshApi, profileApi } from '@/api/auth'
import { TOKEN_KEY } from '@/api/request'

const USER_KEY = 'agent_admin_user'
const EXPIRE_KEY = 'agent_admin_expire'

// 用户会话 store：登录 / 登出 / 会话校验 / 静默续签
export const useUserStore = defineStore('user', () => {
    const token = ref(localStorage.getItem(TOKEN_KEY) || '')
    const user = ref(safeParse(localStorage.getItem(USER_KEY)))
    const expireAt = ref(Number(localStorage.getItem(EXPIRE_KEY) || 0))

    const isAuthenticated = computed(() => !!token.value)

    function safeParse(s) {
        try { return s ? JSON.parse(s) : null } catch { return null }
    }

    // 登录：成功后落 localStorage 并返回，失败抛错由登录页展示（含 shake 动效）
    async function login({ username, password, captcha }) {
        const res = await loginApi({ username, password, captcha })
        const d = res.data
        token.value = d.token
        user.value = { nick_name: d.nick_name, role_name: d.role_name, role: d.role }
        expireAt.value = d.expire_at || 0
        localStorage.setItem(TOKEN_KEY, d.token)
        localStorage.setItem(USER_KEY, JSON.stringify(user.value))
        localStorage.setItem(EXPIRE_KEY, String(expireAt.value))
        notification.success({ message: '登录成功', description: `欢迎回来，${d.nick_name}` })
        return d
    }

    // 会话校验：启动时调 profile，token 失效会走 401 全局跳转
    async function checkSession() {
        if (!token.value) return false
        try {
            const res = await profileApi()
            user.value = { ...user.value, ...res.data }
            return true
        } catch {
            return false
        }
    }

    // 静默续签：剩余有效期 < 24h 时换新 token（AdminLayout 定时驱动）
    async function maybeRefresh() {
        if (!token.value || !expireAt.value) return
        const remain = expireAt.value - Math.floor(Date.now() / 1000)
        if (remain > 24 * 3600 || remain <= 0) return
        try {
            const res = await refreshApi()
            token.value = res.data.token
            expireAt.value = res.data.expire_at || 0
            localStorage.setItem(TOKEN_KEY, token.value)
            localStorage.setItem(EXPIRE_KEY, String(expireAt.value))
        } catch { /* 续签失败不打扰用户，到期自然走 401 */ }
    }

    function logout() {
        token.value = ''
        user.value = null
        expireAt.value = 0
        localStorage.removeItem(TOKEN_KEY)
        localStorage.removeItem(USER_KEY)
        localStorage.removeItem(EXPIRE_KEY)
    }

    return { token, user, expireAt, isAuthenticated, login, logout, checkSession, maybeRefresh }
})