import {
  forwardRef,
  HttpException,
  HttpStatus,
  Inject,
  Injectable,
} from '@nestjs/common';
import { CreateUserDto } from './dto/create-user.dto';
import { UpdateUserDto } from './dto/update-user.dto';
import { Connection, EntityNotFoundError, Not, Repository } from 'typeorm';
import { User } from './entities/user.entity';
import { InjectRepository } from '@nestjs/typeorm';
import { randomStringGenerator } from '@nestjs/common/utils/random-string-generator.util';
import { hashPassword } from '../helper/hash_password';
import { CoaService } from 'src/transaction/coa.service';
import { balanceType, coaType } from 'src/helper/enum-list';
import { RoleService } from 'src/configurable/roles.service';
import { InputCoaDto } from 'src/transaction/dto/input-coa.dto';
import * as uuid from 'uuid';
import { UserDetail } from './entities/user_detail.entity';
import { COA } from '../transaction/entities/coa.entity';

@Injectable()
export class UsersService {
  constructor(
    @InjectRepository(User)
    private usersRepository: Repository<User>,
    @InjectRepository(UserDetail)
    private userDetailRepository: Repository<UserDetail>,
    @Inject(
      forwardRef(() => {
        return CoaService;
      }),
    )
    private coaService: CoaService,
    private roleService: RoleService,
    private connection: Connection,
  ) {}

  async create(createUserDto: CreateUserDto, currentUser: any) {
    const roles = await this.roleService.findOne(createUserDto.roleId);
    const superior = await this.findByUsername(currentUser.username);

    const check = await this.usersRepository.findOne({
      username: createUserDto.username,
    });

    if (check) {
      throw new HttpException(
        {
          statusCode: HttpStatus.NOT_ACCEPTABLE,
          error: 'Username Already Exist',
        },
        HttpStatus.NOT_FOUND,
      );
    }

    const salt = randomStringGenerator();

    const userData = new User();

    userData.id = uuid.v4();
    userData.username = createUserDto.username;
    userData.password = await hashPassword(createUserDto.password, salt);
    userData.salt = salt;
    if (createUserDto.superior) {
      userData.superior = superior;
    } else {
      userData.superior = null;
      userData.partner = createUserDto.partner;
    }
    userData.roles = roles;

    await this.connection.transaction(async (manager) => {
      const result = await manager.insert(User, userData);

      const userDetailData = new UserDetail();
      userDetailData.name = createUserDto.name;
      userDetailData.phone_number = createUserDto.phone_number;
      userDetailData.user = userData;
      const user_detail = await manager.insert(UserDetail, userDetailData);

      const dataCoaWallet = new InputCoaDto();
      dataCoaWallet.user = userData;
      dataCoaWallet.balanceType = balanceType.CREDIT;
      dataCoaWallet.type = coaType.WALLET;
      dataCoaWallet.coaEntityManager = manager;
      await this.coaService.create(dataCoaWallet);

      const dataCoaAR = new InputCoaDto();
      dataCoaAR.user = userData;
      dataCoaAR.balanceType = balanceType.DEBIT;
      dataCoaAR.relatedUserId = superior.id;
      dataCoaAR.type = coaType.ACCOUNT_RECEIVABLE;
      dataCoaAR.coaEntityManager = manager;
      await this.coaService.create(dataCoaAR);

      if (createUserDto.superior) {
        const dataCoaAP = new InputCoaDto();
        dataCoaAP.user = userData;
        dataCoaAP.balanceType = balanceType.CREDIT;
        dataCoaAP.relatedUserId = superior.id;
        dataCoaAP.type = coaType.ACCOUNT_PAYABLE;
        dataCoaAP.coaEntityManager = manager;
        await this.coaService.create(dataCoaAP);
      }
    });

    return userData;
  }

  async findAll(page: number, id: string) {
    const baseQuery = this.usersRepository
      .createQueryBuilder('user')
      .where('user.id != :id', {
        id: id,
      })
      .leftJoinAndSelect('user.roles', 'roles', `roles.id = user.roles_id`)
      .leftJoinAndMapOne(
        'user.user_detail',
        UserDetail,
        'user_detail',
        `user_detail.user = user.id`,
      )
      .leftJoinAndMapOne(
        'user.coa',
        COA,
        'coa',
        `coa.user = user.id and coa.type = '0'`,
      )
      .select([
        'user.id',
        'user.username',
        'user.isActive',
        'user.createdAt',
        'roles.id',
        'roles.name',
        'user_detail',
        'coa.amount',
      ]);

    const data = await baseQuery
      .orderBy('user.createdAt', 'DESC')
      .skip(page * 10)
      .take(10)
      .getMany();

    const totalData = await baseQuery.getCount();

    return {
      data,
      count: totalData,
    };
  }

  findByRoles(relationId: string, page: number, pageSize?: number) {
    return this.usersRepository.findAndCount({
      skip: page * (pageSize || 10),
      take: pageSize || 10,
      where: {
        roles: relationId,
      },
      order: {
        updatedAt: 'DESC',
      },
    });
  }

  async findBySuperrior(superriorId: string, page: number) {
    const baseQuery = this.usersRepository
      .createQueryBuilder('user')
      .where('user.id != :id and user.superior_id = :superior', {
        id: superriorId,
        superior: superriorId,
      })
      .leftJoinAndSelect('user.roles', 'roles', `roles.id = user.roles_id`)
      .leftJoinAndMapOne(
        'user.user_detail',
        UserDetail,
        'user_detail',
        `user_detail.user = user.id`,
      )
      .leftJoinAndMapOne(
        'user.coa',
        COA,
        'coa',
        `coa.user = user.id and coa.type = '0'`,
      )
      .select([
        'user.id',
        'user.username',
        'user.isActive',
        'roles.id',
        'roles.name',
        'user_detail',
        'coa.amount',
      ]);

    const data = await baseQuery
      .skip(page * 10)
      .take(10)
      .getMany();

    const totalData = await baseQuery.getCount();

    return {
      data,
      count: totalData,
    };
  }

  async findExist(id: string) {
    try {
      return await this.usersRepository.findOneOrFail(id);
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }
  }

  async findByUsername(username: string) {
    try {
      return await this.usersRepository.findOneOrFail({
        where: {
          username: username,
        },
        relations: ['superior', 'roles', 'partner'],
      });
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }
  }

  async findOne(id: string) {
    const coa = await this.coaService.findByUser(id, coaType.WALLET);

    try {
      const userData = await this.usersRepository
        .createQueryBuilder('users')
        .leftJoinAndSelect('users.roles', 'roles')
        .leftJoinAndSelect('users.superior', 'superior')
        .leftJoinAndSelect('users.userDetail', 'userDetail')
        .where('users.id = :id', {
          id: id,
        })
        .select([
          'users.id',
          'users.username',
          'users.isActive',
          'users.createdAt',
          'roles.id',
          'roles.name',
          'superior.id',
          'superior.username',
          'userDetail.id',
          'userDetail.name',
          'userDetail.phone_number',
        ])
        .getOne();

      return {
        ...userData,
        wallet: coa.amount,
      };
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }
  }

  async update(id: string, updateUserDto: UpdateUserDto, currentUser: any) {
    let userData;
    let userDetailData;

    try {
      userData = await this.usersRepository.findOneOrFail(id);
      userDetailData = await this.userDetailRepository.findOneOrFail({
        where: {
          user: userData,
        },
      });
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }

    const check = await this.usersRepository.findOne({
      username: updateUserDto.username,
      id: Not(id),
    });

    if (check) {
      throw new HttpException(
        {
          statusCode: HttpStatus.NOT_ACCEPTABLE,
          error: 'Username Already Exist',
        },
        HttpStatus.NOT_FOUND,
      );
    }

    userData.username = updateUserDto.username;
    userData.partner = updateUserDto.partner;
    userDetailData.name = updateUserDto.name;
    userDetailData.phone_number = updateUserDto.phone_number;

    await this.connection.transaction(async (manager) => {
      await manager.save(userData);
      await manager.save(userDetailData);
    });

    return userData;
  }

  async updatePassword(
    id: string,
    updateUserDto: UpdateUserDto,
    currentUser: any,
  ) {
    try {
      const dataUser = await this.usersRepository.findOneOrFail(id);
      dataUser.password = await hashPassword(
        updateUserDto.password,
        dataUser.salt,
      );
      const result = await this.usersRepository.save(dataUser);
      return dataUser;
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }
  }

  setStatus = async (id: string, type: string) => {
    const userData = new User();

    if (type === 'active') {
      userData.isActive = true;
    } else {
      userData.isActive = false;
    }

    await this.connection.transaction(async (manager) => {
      await manager.update(User, { id: id }, userData);
    });

    return userData;
  };

  async remove(id: string) {
    try {
      await this.usersRepository.findOneOrFail(id);
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }

    await this.usersRepository.delete(id);
  }

  async findOneByUsername(username: string) {
    return this.usersRepository.findOneOrFail({
      where: {
        username,
        isActive: true,
      },
      relations: ['roles', 'partner'],
    });
  }

  async findOneByPartner(partnerId: string) {
    try {
      return this.usersRepository.findOneOrFail({
        relations: ['roles'],
        where: {
          partner: partnerId,
        },
      });
    } catch (e) {
      if (e instanceof EntityNotFoundError) {
        throw new HttpException(
          {
            statusCode: HttpStatus.NOT_FOUND,
            error: 'User not found',
          },
          HttpStatus.NOT_FOUND,
        );
      } else {
        throw e;
      }
    }
  }
}