import {
    Get,
    Post,
    Body,
    Put,
    Delete,
    Param,
    Controller,
    UsePipes
} from '@nestjs/common';
import { Request } from 'express';
import { UserService } from './user.service';
import { UserEntity } from './user.entity';
import { UserRO } from './user.interface';
import { CreateUserDto, UpdateUserDto, LoginUserDto } from './dto';
import { HttpException } from '@nestjs/core';
import { User } from './user.decorator';
import { ValidationPipe } from '../shared/pipes/validation.pipe';

import { ApiUseTags, ApiBearerAuth } from '@nestjs/swagger';

/**
 * User controller
 */
@ApiBearerAuth()
@ApiUseTags('user')
@Controller()
export class UserController {
    constructor(private readonly userService: UserService) {}

    /**
     * Find a user with his email
     * @param email User email
     */
    @Get('user')
    async findMe(@User('email') email: string): Promise<UserRO> {
        return await this.userService.findByEmail(email);
    }

    /**
     * Update a user
     * @param userId User id
     * @param userData User data
     */
    @Put('user')
    async update(
        @User('id') userId: number,
        @Body('user') userData: UpdateUserDto
    ) {
        return await this.userService.update(userId, userData);
    }

    /**
     * Create a user
     * @param userData User data
     */
    @UsePipes(new ValidationPipe())
    @Post('users')
    async create(@Body('user') userData: CreateUserDto) {
        return this.userService.create(userData);
    }

    /**
     * Delete a user
     * @param params
     */
    @Delete('users/:slug')
    async delete(@Param() params) {
        return await this.userService.delete(params.slug);
    }

    @UsePipes(new ValidationPipe())
    @Post('users/login')
    async login(@Body('user') loginUserDto: LoginUserDto): Promise<UserRO> {
        const _user = await this.userService.findOne(loginUserDto);

        const errors = { User: ' not found' };
        if (!_user) throw new HttpException({ errors }, 401);

        const token = await this.userService.generateJWT(_user);
        const { email, username, bio, image } = _user;
        const user = { email, token, username, bio, image };
        return { user };
    }
}