"use client"

import { create } from "zustand"
import { persist } from "zustand/middleware"
import { getFullBookPrice } from "./book-data"

export interface User {
  id: string
  phone: string
  nickname: string
  isAdmin: boolean
  purchasedSections: string[]
  hasFullBook: boolean
  referralCode: string
  referredBy?: string
  earnings: number
  pendingEarnings: number
  withdrawnEarnings: number
  referralCount: number
  createdAt: string
}

export interface Withdrawal {
  id: string
  userId: string
  amount: number
  method: "wechat" | "alipay"
  account: string
  name: string
  status: "pending" | "completed" | "rejected"
  createdAt: string
  completedAt?: string
}

export interface Purchase {
  id: string
  userId: string
  userPhone?: string
  userNickname?: string
  type: "section" | "fullbook"
  sectionId?: string
  sectionTitle?: string
  amount: number
  paymentMethod?: string
  referralCode?: string
  referrerEarnings?: number
  status: "pending" | "completed" | "refunded"
  createdAt: string
}

export interface LiveQRCodeConfig {
  id: string
  name: string
  urls: string[] // 多个URL随机跳转
  imageUrl: string
  redirectType: "random" | "sequential" | "weighted"
  weights?: number[]
  clickCount: number
  enabled: boolean
}

export interface QRCodeConfig {
  id: string
  name: string
  url: string
  imageUrl: string
  weight: number
  enabled: boolean
}

export interface PaymentAccountConfig {
  wechat: {
    enabled: boolean
    qrCode: string
    account: string
    websiteAppId?: string
    websiteAppSecret?: string
    serviceAppId?: string
    serviceAppSecret?: string
    mpVerifyCode?: string
    merchantId?: string
    apiKey?: string
  }
  alipay: {
    enabled: boolean
    qrCode: string
    account: string
    partnerId?: string // PID
    securityKey?: string
    mobilePayEnabled?: boolean
    paymentInterface?: string
  }
  usdt: {
    enabled: boolean
    network: "TRC20" | "ERC20" | "BEP20"
    address: string
    exchangeRate: number
  }
  paypal: {
    enabled: boolean
    email: string
    exchangeRate: number
  }
}

export interface FeishuSyncConfig {
  enabled: boolean
  docUrl: string
  lastSyncAt?: string
  autoSync: boolean
  syncInterval: number // 分钟
}

export interface Settings {
  distributorShare: number
  authorShare: number
  paymentMethods: PaymentAccountConfig
  sectionPrice: number
  baseBookPrice: number
  pricePerSection: number
  qrCodes: QRCodeConfig[]
  liveQRCodes: LiveQRCodeConfig[]
  feishuSync: FeishuSyncConfig
  authorInfo: {
    name: string
    description: string
    liveTime: string
    platform: string
  }
}

interface StoreState {
  user: User | null
  isLoggedIn: boolean
  purchases: Purchase[]
  withdrawals: Withdrawal[]
  settings: Settings

  login: (phone: string, code: string) => Promise<boolean>
  logout: () => void
  register: (phone: string, nickname: string, referralCode?: string) => Promise<boolean>
  purchaseSection: (sectionId: string, sectionTitle?: string, paymentMethod?: string) => Promise<boolean>
  purchaseFullBook: (paymentMethod?: string) => Promise<boolean>
  hasPurchased: (sectionId: string) => boolean
  adminLogin: (username: string, password: string) => boolean
  updateSettings: (newSettings: Partial<Settings>) => void
  getAllUsers: () => User[]
  getAllPurchases: () => Purchase[]
  addUser: (user: Partial<User>) => User
  updateUser: (userId: string, updates: Partial<User>) => void
  deleteUser: (userId: string) => void
  addPurchase: (purchase: Omit<Purchase, "id" | "createdAt">) => void
  requestWithdrawal: (amount: number, method: "wechat" | "alipay", account: string, name: string) => void
  completeWithdrawal: (id: string) => void
  updateLiveQRCode: (config: Partial<LiveQRCodeConfig>) => void
  getRandomQRCode: () => QRCodeConfig | null
  getLiveQRCodeUrl: (qrId: string) => string | null
  exportData: () => string
  fetchSettings: () => Promise<void>
}

const defaultSettings: Settings = {
  distributorShare: 90,
  authorShare: 10,
  paymentMethods: {
    wechat: {
      enabled: true,
      qrCode: "",
      account: "",
      websiteAppId: "",
      websiteAppSecret: "",
      serviceAppId: "",
      serviceAppSecret: "",
      mpVerifyCode: "",
      merchantId: "",
      apiKey: "",
    },
    alipay: {
      enabled: true,
      qrCode: "",
      account: "",
      partnerId: "",
      securityKey: "",
      mobilePayEnabled: true,
      paymentInterface: "official",
    },
    usdt: {
      enabled: true,
      network: "TRC20",
      address: "",
      exchangeRate: 7.2,
    },
    paypal: {
      enabled: false,
      email: "",
      exchangeRate: 7.2,
    },
  },
  sectionPrice: 1,
  baseBookPrice: 9.9,
  pricePerSection: 1,
  qrCodes: [
    {
      id: "default",
      name: "Soul派对群",
      url: "https://soul.cn/party",
      imageUrl: "/images/image.png",
      weight: 1,
      enabled: true,
    },
  ],
  liveQRCodes: [
    {
      id: "party-group",
      name: "派对群活码",
      urls: ["https://soul.cn/party1", "https://soul.cn/party2", "https://soul.cn/party3"],
      imageUrl: "/images/image.png",
      redirectType: "random",
      clickCount: 0,
      enabled: true,
    },
  ],
  feishuSync: {
    enabled: false,
    docUrl: "",
    autoSync: false,
    syncInterval: 60,
  },
  authorInfo: {
    name: "卡若",
    description: "连续创业者,私域运营专家,每天早上6-9点在Soul派对房分享真实商业故事",
    liveTime: "06:00-09:00",
    platform: "Soul派对房",
  },
}

export const useStore = create<StoreState>()(
  persist(
    (set, get) => ({
      user: null,
      isLoggedIn: false,
      purchases: [],
      withdrawals: [],
      settings: defaultSettings,

      login: async (phone: string, code: string) => {
        if (code !== "123456") {
          return false
        }
        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const existingUser = users.find((u) => u.phone === phone)
        if (existingUser) {
          set({ user: existingUser, isLoggedIn: true })
          return true
        }
        return false
      },

      logout: () => {
        set({ user: null, isLoggedIn: false })
      },

      register: async (phone: string, nickname: string, referralCode?: string) => {
        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        if (users.find((u) => u.phone === phone)) {
          return false
        }

        const newUser: User = {
          id: `user_${Date.now()}`,
          phone,
          nickname,
          isAdmin: false,
          purchasedSections: [],
          hasFullBook: false,
          referralCode: `REF${Date.now().toString(36).toUpperCase()}`,
          referredBy: referralCode,
          earnings: 0,
          pendingEarnings: 0,
          withdrawnEarnings: 0,
          referralCount: 0,
          createdAt: new Date().toISOString(),
        }

        if (referralCode) {
          const referrer = users.find((u) => u.referralCode === referralCode)
          if (referrer) {
            referrer.referralCount = (referrer.referralCount || 0) + 1
            localStorage.setItem("users", JSON.stringify(users))
          }
        }

        users.push(newUser)
        localStorage.setItem("users", JSON.stringify(users))
        set({ user: newUser, isLoggedIn: true })
        return true
      },

      purchaseSection: async (sectionId: string, sectionTitle?: string, paymentMethod?: string) => {
        const { user, settings } = get()
        if (!user) return false

        const amount = settings.sectionPrice
        const purchase: Purchase = {
          id: `purchase_${Date.now()}`,
          userId: user.id,
          userPhone: user.phone,
          userNickname: user.nickname,
          type: "section",
          sectionId,
          sectionTitle,
          amount,
          paymentMethod,
          referralCode: user.referredBy,
          status: "completed",
          createdAt: new Date().toISOString(),
        }

        const updatedUser = {
          ...user,
          purchasedSections: [...user.purchasedSections, sectionId],
        }

        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const userIndex = users.findIndex((u) => u.id === user.id)
        if (userIndex !== -1) {
          users[userIndex] = updatedUser
          localStorage.setItem("users", JSON.stringify(users))
        }

        if (user.referredBy) {
          const referrer = users.find((u) => u.referralCode === user.referredBy)
          if (referrer) {
            const referrerEarnings = amount * (settings.distributorShare / 100)
            referrer.earnings += referrerEarnings
            referrer.pendingEarnings = (referrer.pendingEarnings || 0) + referrerEarnings
            purchase.referrerEarnings = referrerEarnings
            localStorage.setItem("users", JSON.stringify(users))
          }
        }

        const purchases = JSON.parse(localStorage.getItem("all_purchases") || "[]") as Purchase[]
        purchases.push(purchase)
        localStorage.setItem("all_purchases", JSON.stringify(purchases))

        set({ user: updatedUser, purchases: [...get().purchases, purchase] })
        return true
      },

      purchaseFullBook: async (paymentMethod?: string) => {
        const { user, settings } = get()
        if (!user) return false

        const fullBookPrice = getFullBookPrice()
        const purchase: Purchase = {
          id: `purchase_${Date.now()}`,
          userId: user.id,
          userPhone: user.phone,
          userNickname: user.nickname,
          type: "fullbook",
          amount: fullBookPrice,
          paymentMethod,
          referralCode: user.referredBy,
          status: "completed",
          createdAt: new Date().toISOString(),
        }

        const updatedUser = { ...user, hasFullBook: true }

        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const userIndex = users.findIndex((u) => u.id === user.id)
        if (userIndex !== -1) {
          users[userIndex] = updatedUser
          localStorage.setItem("users", JSON.stringify(users))
        }

        if (user.referredBy) {
          const referrer = users.find((u) => u.referralCode === user.referredBy)
          if (referrer) {
            const referrerEarnings = fullBookPrice * (settings.distributorShare / 100)
            referrer.earnings += referrerEarnings
            referrer.pendingEarnings = (referrer.pendingEarnings || 0) + referrerEarnings
            purchase.referrerEarnings = referrerEarnings
            localStorage.setItem("users", JSON.stringify(users))
          }
        }

        const purchases = JSON.parse(localStorage.getItem("all_purchases") || "[]") as Purchase[]
        purchases.push(purchase)
        localStorage.setItem("all_purchases", JSON.stringify(purchases))

        set({ user: updatedUser, purchases: [...get().purchases, purchase] })
        return true
      },

      hasPurchased: (sectionId: string) => {
        const { user } = get()
        if (!user) return false
        if (user.hasFullBook) return true
        return user.purchasedSections.includes(sectionId)
      },

      adminLogin: (username: string, password: string) => {
        if (username.toLowerCase() === "admin" && password === "key123456") {
          const adminUser: User = {
            id: "admin",
            phone: "admin",
            nickname: "管理员",
            isAdmin: true,
            purchasedSections: [],
            hasFullBook: true,
            referralCode: "ADMIN",
            earnings: 0,
            pendingEarnings: 0,
            withdrawnEarnings: 0,
            referralCount: 0,
            createdAt: new Date().toISOString(),
          }
          set({ user: adminUser, isLoggedIn: true })
          return true
        }
        return false
      },

      updateSettings: (newSettings: Partial<Settings>) => {
        const { settings } = get()
        const updatedSettings = { ...settings, ...newSettings }
        if (newSettings.distributorShare !== undefined) {
          updatedSettings.authorShare = 100 - newSettings.distributorShare
        }
        set({ settings: updatedSettings })
        if (typeof window !== "undefined") {
          localStorage.setItem("app_settings", JSON.stringify(updatedSettings))
        }
      },

      getAllUsers: () => {
        if (typeof window === "undefined") return []
        return JSON.parse(localStorage.getItem("users") || "[]") as User[]
      },

      getAllPurchases: () => {
        if (typeof window === "undefined") return []
        return JSON.parse(localStorage.getItem("all_purchases") || "[]") as Purchase[]
      },

      addUser: (userData: Partial<User>) => {
        if (typeof window === "undefined") return { id: "temp", ...userData } as User
        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const newUser: User = {
          id: `user_${Date.now()}`,
          phone: userData.phone || "",
          nickname: userData.nickname || "新用户",
          isAdmin: false,
          purchasedSections: [],
          hasFullBook: false,
          referralCode: `REF${Date.now().toString(36).toUpperCase()}`,
          earnings: 0,
          pendingEarnings: 0,
          withdrawnEarnings: 0,
          referralCount: 0,
          createdAt: new Date().toISOString(),
          ...userData,
        }
        users.push(newUser)
        localStorage.setItem("users", JSON.stringify(users))
        return newUser
      },

      updateUser: (userId: string, updates: Partial<User>) => {
        if (typeof window === "undefined") return
        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const index = users.findIndex((u) => u.id === userId)
        if (index !== -1) {
          users[index] = { ...users[index], ...updates }
          localStorage.setItem("users", JSON.stringify(users))
        }
      },

      deleteUser: (userId: string) => {
        if (typeof window === "undefined") return
        const users = JSON.parse(localStorage.getItem("users") || "[]") as User[]
        const filtered = users.filter((u) => u.id !== userId)
        localStorage.setItem("users", JSON.stringify(filtered))
      },

      addPurchase: (purchaseData) =>
        set((state) => {
          const newPurchase: Purchase = {
            id: Math.random().toString(36).substring(2, 9),
            createdAt: new Date().toISOString(),
            ...purchaseData,
          }

          // 如果是全书购买，更新用户状态
          if (state.user && purchaseData.userId === state.user.id) {
            const updatedUser = { ...state.user }
            if (purchaseData.type === "fullbook") {
              updatedUser.hasFullBook = true
            } else if (purchaseData.sectionId) {
              updatedUser.purchasedSections = [
                ...updatedUser.purchasedSections,
                purchaseData.sectionId,
              ]
            }
            
            // 更新 users 数组
            const updatedUsers = state.users?.map((u) => 
              u.id === updatedUser.id ? updatedUser : u
            ) || []

            return {
              purchases: [...state.purchases, newPurchase],
              user: updatedUser,
            }
          }

          return {
            purchases: [...state.purchases, newPurchase],
          }
        }),

      requestWithdrawal: (amount, method, account, name) => 
        set((state) => {
          if (!state.user) return {}
          if (state.user.earnings < amount) return {}

          const newWithdrawal: Withdrawal = {
            id: Math.random().toString(36).substring(2, 9),
            userId: state.user.id,
            amount,
            method,
            account,
            name,
            status: "pending",
            createdAt: new Date().toISOString()
          }

          // 扣除余额，增加冻结/提现中金额
          const updatedUser = {
            ...state.user,
            earnings: state.user.earnings - amount,
            pendingEarnings: state.user.pendingEarnings + amount
          }

          return {
            withdrawals: [...(state.withdrawals || []), newWithdrawal],
            user: updatedUser,
          }
        }),

      completeWithdrawal: (id) =>
        set((state) => {
          const withdrawals = state.withdrawals || []
          const withdrawalIndex = withdrawals.findIndex(w => w.id === id)
          if (withdrawalIndex === -1) return {}

          const withdrawal = withdrawals[withdrawalIndex]
          if (withdrawal.status !== "pending") return {}

          const updatedWithdrawals = [...withdrawals]
          updatedWithdrawals[withdrawalIndex] = {
            ...withdrawal,
            status: "completed",
            completedAt: new Date().toISOString()
          }

          // 这里我们只是更新状态，资金已经在申请时扣除了
          // 实际场景中可能需要确认转账成功
          
          return {
            withdrawals: updatedWithdrawals,
          }
        }),

      updateLiveQRCode: (config) =>
        set((state) => {
          const { settings } = state
          const updatedLiveQRCodes = settings.liveQRCodes.map((qr) =>
            qr.id === config.id ? { ...qr, ...config } : qr
          )
          // 如果不存在且有id，则添加? 暂时只支持更新
          return {
            settings: { ...settings, liveQRCodes: updatedLiveQRCodes },
          }
        }),

      getRandomQRCode: () => {
        const { settings } = get()
        const enabledQRs = settings.qrCodes.filter((qr) => qr.enabled)
        if (enabledQRs.length === 0) return null
        const totalWeight = enabledQRs.reduce((sum, qr) => sum + qr.weight, 0)
        let random = Math.random() * totalWeight
        for (const qr of enabledQRs) {
          random -= qr.weight
          if (random <= 0) return qr
        }
        return enabledQRs[0]
      },

      getLiveQRCodeUrl: (qrId: string) => {
        const { settings } = get()
        const liveQR = settings.liveQRCodes.find((qr) => qr.id === qrId && qr.enabled)
        if (!liveQR || liveQR.urls.length === 0) return null

        // 更新点击次数
        liveQR.clickCount++

        if (liveQR.redirectType === "random") {
          const randomIndex = Math.floor(Math.random() * liveQR.urls.length)
          return liveQR.urls[randomIndex]
        } else if (liveQR.redirectType === "sequential") {
          const index = liveQR.clickCount % liveQR.urls.length
          return liveQR.urls[index]
        } else if (liveQR.redirectType === "weighted" && liveQR.weights) {
          const totalWeight = liveQR.weights.reduce((sum, w) => sum + w, 0)
          let random = Math.random() * totalWeight
          for (let i = 0; i < liveQR.urls.length; i++) {
            random -= liveQR.weights[i] || 1
            if (random <= 0) return liveQR.urls[i]
          }
        }
        return liveQR.urls[0]
      },

      exportData: () => {
        const { user, purchases, settings } = get()
        const data = {
          user,
          purchases,
          settings,
          exportDate: new Date().toISOString(),
        }
        return JSON.stringify(data, null, 2)
      },

      fetchSettings: async () => {
        try {
          const res = await fetch("/api/config")
          if (!res.ok) throw new Error("Failed to fetch config")
          const data = await res.json()

          const { settings } = get()

          // Deep merge payment methods to preserve existing defaults if API is partial
          const mergedPaymentMethods = {
            ...settings.paymentMethods,
            wechat: { ...settings.paymentMethods.wechat, ...data.paymentMethods?.wechat },
            alipay: { ...settings.paymentMethods.alipay, ...data.paymentMethods?.alipay },
            usdt: { ...settings.paymentMethods.usdt, ...data.paymentMethods?.usdt },
            paypal: { ...settings.paymentMethods.paypal, ...data.paymentMethods?.paypal },
          }

          const newSettings: Partial<Settings> = {
            paymentMethods: mergedPaymentMethods,
            authorInfo: { ...settings.authorInfo, ...data.authorInfo },
          }
          
          set({ settings: { ...settings, ...newSettings } })
        } catch (error) {
          console.error("Failed to sync settings:", error)
        }
      },
    }),
    {
      name: "soul-experiment-storage",
    },
  ),
)