import db from '@/lib/db/client';
import { hashPassword } from '@/lib/password';
import { generateAccessToken } from '@/lib/token';
import { createRoute, z } from '@hono/zod-openapi';
import { isNil } from 'lodash';

import type { AuthItem } from './type';

import {
    createBodyRequest,
    createErrorResult,
    createHonoApp,
    createServerErrorResponse,
    createSuccessResponse,
    createUnauthorizedErrorResponse,
    createValidatorErrorResponse,
} from '../common/utils';
import {
    authItemSchema,
    authLoginRequestSchema,
    authLoginResponseSchema,
    createUserSchema,
} from './schema';
import { passport, verifyJWT } from './utils';

const tags = ['auth'];
const app = createHonoApp();
export const authApi = app
    .openapi(
        createRoute({
            tags,
            method: 'get',
            summary: '获取用户信息',
            path: '/profile',
            responses: {
                ...createSuccessResponse(
                    '获取成功',
                    z
                        .object({
                            result: z.boolean(),
                            data: authItemSchema.or(z.null()),
                        })
                        .openapi('获取用户信息响应数据'),
                ),
                ...createServerErrorResponse(),
            },
        }),
        async (c) => {
            try {
                const isAuthenticated = await verifyJWT(c);

                if (!isAuthenticated) return c.json({ result: false, data: null }, 200);
                const { id } = c.var.user;
                const user = await db.user.findUnique({
                    where: { id },
                    select: {
                        id: true,
                        username: true,
                        email: true,
                        createdAt: true,
                        updatedAt: true,
                    },
                });
                if (isNil(user)) return c.json({ result: false, data: null }, 200);
                return c.json({ result: true, data: user }, 200);
            } catch (error) {
                return c.json(createErrorResult('获取用户失败', error), 500);
            }
        },
    )
    .openapi(
        createRoute({
            tags,
            summary: '用戶註冊',
            method: 'post',
            path: '/signup',
            request: createBodyRequest(createUserSchema),
            responses: {
                ...createSuccessResponse('Login success', authLoginResponseSchema),
                ...createValidatorErrorResponse(),
                ...createServerErrorResponse(),
            },
        }),
        async (c) => {
            const data = await c.req.json();
            const validatedData = await createUserSchema.safeParseAsync(data);
            try {
                if (validatedData.success) {
                    const user = await db.user.create({
                        data: {
                            ...validatedData.data,
                            password: hashPassword(validatedData.data.password),
                        },
                    });
                    const token = generateAccessToken(user);
                    return c.json({ token }, 200);
                }
                return c.json(createErrorResult('参数验证失败', validatedData.error), 400);
            } catch (error) {
                return c.json(createErrorResult('服务器错误', error), 500);
            }
        },
    )
    .openapi(
        createRoute({
            tags,
            summary: '用戶登入',
            method: 'post',
            path: '/login',
            request: createBodyRequest(authLoginRequestSchema),
            responses: {
                ...createSuccessResponse('登录成功', authLoginResponseSchema),
                ...createValidatorErrorResponse(),
                ...createUnauthorizedErrorResponse('认证失败'),
                ...createServerErrorResponse(),
            },
        }),
        async (c) => {
            const body = await c.req.json();
            const validatedData = authLoginRequestSchema.safeParse(body);
            if (!validatedData.success) {
                return c.json(createErrorResult('参数验证失败', validatedData.error), 400);
            }
            const authReq = {
                ...c.req.raw,
                body: validatedData.data,
            };
            return new Promise((resolve) => {
                passport.authenticate('local', (err: any, user: AuthItem, info: any) => {
                    if (err)
                        return err.code === 401
                            ? resolve(c.json(createErrorResult('认证失败', err), 401))
                            : resolve(c.json(createErrorResult('服务器错误', err), 500));
                    const token = generateAccessToken(user);

                    return resolve(c.json({ token }, 200));
                })(authReq, (c.res as any).raw);
            });
        },
    )
    .openapi(
        createRoute({
            tags,
            summary: '用戶列表',
            method: 'get',
            path: '/',
            responses: {
                ...createSuccessResponse('用户列表', z.array(createUserSchema)),
            },
        }),
        async (c) => {
            const users = await db.user.findMany();
            return c.json(users, 200);
        },
    );