import { Injectable } from '@nestjs/common';
import { CreateExpenseDto } from './dto/create-expense.dto';
import { UpdateExpenseDto } from './dto/update-expense.dto';
import { ExpenseDataService } from './expense-data.service';
import { Expense } from './entities/expense.entity';

@Injectable()
export class ExpensesService {
  public constructor(private expenseDataService: ExpenseDataService) { }

  public async findAll(): Promise<Expense[]> {
    return await this.expenseDataService.getAll();
  }

  public async findById(id: string): Promise<Expense> {
    const expense = await this.expenseDataService.getById(id);
    if (!expense) {
      throw new Error('No expense found');
    }

    return expense;
  }

  public async create(expense: CreateExpenseDto): Promise<Expense> {
    return await this.expenseDataService.create(expense);
  }

  public async update(expense: UpdateExpenseDto): Promise<Expense> {
    return await this.expenseDataService.update(expense);
  }

  public async remove(id: string): Promise<void> {
    await this.expenseDataService.delete(id);
  }
}