import type { NextAuthOptions } from "next-auth"
import CredentialsProvider from "next-auth/providers/credentials"
import { prisma } from "./prisma"
import bcrypt from "bcryptjs"

export const authOptions: NextAuthOptions = {
  providers: [
    CredentialsProvider({
      name: "credentials",
      credentials: {
        email: { label: "Email", type: "email" },
        password: { label: "Password", type: "password" }
      },
      async authorize(credentials) {
        if (!credentials?.email || !credentials?.password) {
          throw new Error("请输入邮箱和密码")
        }

        const user = await prisma.user.findUnique({
          where: { email: credentials.email }
        })

        if (!user || !user.password) {
          throw new Error("用户不存在")
        }

        const isValid = await bcrypt.compare(credentials.password, user.password)

        if (!isValid) {
          throw new Error("密码错误")
        }

        // 检查用户是否被停用
        if (!user.isActive) {
          throw new Error("账户已被停用，请联系管理员")
        }

        // 记录登录日志
        await prisma.loginLog.create({
          data: {
            userId: user.id,
            email: user.email,
            userName: user.name,
            success: true,
          }
        })

        const hasSeenHelp = (user as { hasSeenHelp?: boolean }).hasSeenHelp ?? false

        return {
          id: user.id,
          email: user.email,
          name: user.name,
          hasSeenHelp,
        }
      }
    })
  ],
  session: {
    strategy: "jwt"
  },
  pages: {
    signIn: "/auth/signin",
  },
  callbacks: {
    async jwt({ token, user, trigger, session }) {
      if (user) {
        token.id = user.id
        token.hasSeenHelp = (user as any).hasSeenHelp ?? token.hasSeenHelp
      }

      if (trigger === 'update' && session?.user?.hasSeenHelp !== undefined) {
        token.hasSeenHelp = session.user.hasSeenHelp
      }

      if (token.id && token.hasSeenHelp === undefined) {
        const dbUser = await prisma.user.findUnique({
          where: { id: token.id as string },
        }) as { hasSeenHelp?: boolean } | null

        token.hasSeenHelp = dbUser?.hasSeenHelp ?? false
      }
      return token
    },
    async session({ session, token }) {
      if (session.user) {
        session.user.id = token.id as string
        session.user.hasSeenHelp = (token as any).hasSeenHelp ?? false
      }
      return session
    }
  },
  // 强制不使用 Secure Cookie，解决代理访问时的协议误判问题
  useSecureCookies: false,
  cookies: {
    sessionToken: {
      name: `next-auth.session-token`,
      options: {
        httpOnly: true,
        sameSite: 'lax',
        path: '/',
        secure: false
      }
    }
  }
}