import { type GetServerSidePropsContext } from "next";
import {
  getServerSession,
  type NextAuthOptions,
  type DefaultSession,
} from "next-auth";
import CredentialsProvider from "next-auth/providers/credentials";
import { prisma } from "~/server/db";
import { compare } from "bcrypt";

/**
 * Module augmentation for `next-auth` types. Allows us to add custom properties to the `session`
 * object and keep type safety.
 *
 * @see https://next-auth.js.org/getting-started/typescript#module-augmentation
 */
declare module "next-auth" {
  interface Session extends DefaultSession {
    user: {
      id: string;
      // ...other properties
      // role: UserRole;
    } & DefaultSession["user"];
  }

  // interface User {
  //   // ...other properties
  //   // role: UserRole;
  // }
}

/**
 * Options for NextAuth.js used to configure adapters, providers, callbacks, etc.
 *
 * @see https://next-auth.js.org/configuration/options
 */
export const authOptions: NextAuthOptions = {
  callbacks: {
    session({ session, token }) {
      if (session.user) {
        session.user.id = token.sub;
      }
      return session;
    },
  },
  providers: [
    CredentialsProvider({
      name: "Login",
      credentials: {
        username: {
          label: "Usuario",
          type: "text",
          autocomplete: "username",
        },
        password: {
          label: "Senha",
          type: "password",
          autocomplete: "current-password",
        },
      },
      async authorize(credentials) {
        const { username, password } = credentials as {
          username: string;
          password: string;
        };

        const user = await prisma.user.findFirst({
          where: {
            username,
          },
        });

        if (!user) {
          return null;
        }

        const isValid = await compare(password, user.password);

        if (!isValid) {
          return null;
        }

        return user;
      },
    }),
  ],
};

/**
 * Wrapper for `getServerSession` so that you don't need to import the `authOptions` in every file.
 *
 * @see https://next-auth.js.org/configuration/nextjs
 */
export const getServerAuthSession = (ctx: {
  req: GetServerSidePropsContext["req"];
  res: GetServerSidePropsContext["res"];
}) => {
  return getServerSession(ctx.req, ctx.res, authOptions);
};