import type { FastifyInstance } from 'fastify';
import { AuthService } from '../services/auth/auth.service.js';

const registerSchema = {
  body: {
    type: 'object',
    required: ['email', 'password', 'nickname'],
    properties: {
      email: { type: 'string', minLength: 1 },
      password: { type: 'string', minLength: 8 },
      nickname: { type: 'string', minLength: 2, maxLength: 30 },
    },
  },
};

const loginSchema = {
  body: {
    type: 'object',
    required: ['email', 'password'],
    properties: {
      email: { type: 'string', minLength: 1 },
      password: { type: 'string' },
    },
  },
};

const refreshTokenSchema = {
  body: {
    type: 'object',
    required: ['refreshToken'],
    properties: {
      refreshToken: { type: 'string' },
    },
  },
};

const logoutSchema = refreshTokenSchema;

const verifyEmailSchema = {
  body: {
    type: 'object',
    required: ['userId', 'code'],
    properties: {
      userId: { type: 'string', minLength: 1 },
      code: { type: 'string', minLength: 1, maxLength: 10 },
    },
  },
};

const forgotPasswordSchema = {
  body: {
    type: 'object',
    required: ['email'],
    properties: {
      email: { type: 'string', minLength: 1 },
    },
  },
};

const resetPasswordSchema = {
  body: {
    type: 'object',
    required: ['token', 'newPassword'],
    properties: {
      token: { type: 'string' },
      newPassword: { type: 'string', minLength: 8 },
    },
  },
};

export async function authRoutes(app: FastifyInstance) {
  const authService = new AuthService(app.db);
  const { rateLimitOptions } = app;

  app.post(
    '/register',
    { schema: registerSchema, config: { rateLimit: rateLimitOptions.register } },
    async (req, reply) => {
      const body = req.body as { email: string; password: string; nickname: string };
      const { userId, verificationCode } = await authService.register(body);

      return reply.status(201).send({
        userId,
        message: 'Registration successful. Please verify your email.',
        verificationCode,
      });
    },
  );

  app.post(
    '/login',
    { schema: loginSchema, config: { rateLimit: rateLimitOptions.login } },
    async (req, reply) => {
      const body = req.body as { email: string; password: string };
      const userAgent = req.headers['user-agent'];
      const ipAddress = req.ip;

      const result = await authService.login({
        email: body.email,
        password: body.password,
        userAgent,
        ipAddress,
      });

      return reply.send(result);
    },
  );

  app.post(
    '/logout',
    { schema: logoutSchema, config: { rateLimit: rateLimitOptions.apiGuest } },
    async (req, reply) => {
      const body = req.body as { refreshToken: string };
      await authService.logout(body.refreshToken);
      return reply.status(204).send();
    },
  );

  app.post(
    '/refresh',
    { schema: refreshTokenSchema, config: { rateLimit: rateLimitOptions.apiGuest } },
    async (req, reply) => {
      const body = req.body as { refreshToken: string };
      const userAgent = req.headers['user-agent'];
      const ipAddress = req.ip;

      const result = await authService.refresh({
        refreshToken: body.refreshToken,
        userAgent,
        ipAddress,
      });

      return reply.send(result);
    },
  );

  app.post(
    '/verify-email',
    { schema: verifyEmailSchema, config: { rateLimit: rateLimitOptions.verifyEmail } },
    async (req, reply) => {
      const body = req.body as { userId: string; code: string };
      await authService.verifyEmail(body.userId, body.code);
      return reply.send({ message: 'Email verified successfully' });
    },
  );

  app.post(
    '/forgot-password',
    { schema: forgotPasswordSchema, config: { rateLimit: rateLimitOptions.forgotPassword } },
    async (req, reply) => {
      const body = req.body as { email: string };
      await authService.forgotPassword(body.email);
      return reply.send({
        message: 'If the email exists, a reset link has been sent.',
      });
    },
  );

  app.post(
    '/reset-password',
    { schema: resetPasswordSchema, config: { rateLimit: rateLimitOptions.forgotPassword } },
    async (req, reply) => {
      const body = req.body as { token: string; newPassword: string };
      await authService.resetPassword(body.token, body.newPassword);
      return reply.send({ message: 'Password reset successfully' });
    },
  );
}