// Copyright IBM Corp. and LoopBack contributors 2020. All Rights Reserved.
// Node module: @loopback/example-multi-tenancy
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT

import {inject} from '@loopback/core';
import {
  Count,
  CountSchema,
  Filter,
  FilterExcludingWhere,
  repository,
  Where,
} from '@loopback/repository';
import {
  del,
  get,
  getModelSchemaRef,
  param,
  patch,
  post,
  put,
  requestBody,
} from '@loopback/rest';
import {User} from '../models';
import {MultiTenancyBindings, Tenant} from '../multi-tenancy';
import {UserRepository} from '../repositories';

export class UserController {
  constructor(
    @repository(UserRepository)
    public userRepository: UserRepository,
    @inject(MultiTenancyBindings.CURRENT_TENANT, {optional: true})
    private tenant?: Tenant,
  ) {}

  @post('/users', {
    responses: {
      '200': {
        description: 'User model instance',
        content: {'application/json': {schema: getModelSchemaRef(User)}},
      },
    },
  })
  async create(
    @requestBody({
      content: {
        'application/json': {
          schema: getModelSchemaRef(User, {
            title: 'NewUser',
            exclude: ['id'],
          }),
        },
      },
    })
    user: Omit<User, 'id'>,
  ): Promise<User> {
    // Inject the tenant id for creation
    if (this.tenant?.id != null) {
      user.tenantId = this.tenant?.id;
    } else {
      user.tenantId = '';
    }
    return this.userRepository.create(user);
  }

  @get('/users/count', {
    responses: {
      '200': {
        description: 'User model count',
        content: {'application/json': {schema: CountSchema}},
      },
    },
  })
  async count(@param.where(User) where?: Where<User>): Promise<Count> {
    return this.userRepository.count(where);
  }

  @get('/users', {
    responses: {
      '200': {
        description: 'Array of User model instances',
        content: {
          'application/json': {
            schema: {
              type: 'array',
              items: getModelSchemaRef(User, {includeRelations: true}),
            },
          },
        },
      },
    },
  })
  async find(@param.filter(User) filter?: Filter<User>): Promise<User[]> {
    return this.userRepository.find(filter);
  }

  @patch('/users', {
    responses: {
      '200': {
        description: 'User PATCH success count',
        content: {'application/json': {schema: CountSchema}},
      },
    },
  })
  async updateAll(
    @requestBody({
      content: {
        'application/json': {
          schema: getModelSchemaRef(User, {partial: true}),
        },
      },
    })
    user: User,
    @param.where(User) where?: Where<User>,
  ): Promise<Count> {
    return this.userRepository.updateAll(user, where);
  }

  @get('/users/{id}', {
    responses: {
      '200': {
        description: 'User model instance',
        content: {
          'application/json': {
            schema: getModelSchemaRef(User, {includeRelations: true}),
          },
        },
      },
    },
  })
  async findById(
    @param.path.string('id') id: string,
    @param.filter(User, {exclude: 'where'}) filter?: FilterExcludingWhere<User>,
  ): Promise<User> {
    return this.userRepository.findById(id, filter);
  }

  @patch('/users/{id}', {
    responses: {
      '204': {
        description: 'User PATCH success',
      },
    },
  })
  async updateById(
    @param.path.string('id') id: string,
    @requestBody({
      content: {
        'application/json': {
          schema: getModelSchemaRef(User, {partial: true}),
        },
      },
    })
    user: User,
  ): Promise<void> {
    await this.userRepository.updateById(id, user);
  }

  @put('/users/{id}', {
    responses: {
      '204': {
        description: 'User PUT success',
      },
    },
  })
  async replaceById(
    @param.path.string('id') id: string,
    @requestBody() user: User,
  ): Promise<void> {
    await this.userRepository.replaceById(id, user);
  }

  @del('/users/{id}', {
    responses: {
      '204': {
        description: 'User DELETE success',
      },
    },
  })
  async deleteById(@param.path.string('id') id: string): Promise<void> {
    await this.userRepository.deleteById(id);
  }
}