LibraryApp/Services/ReaderService.cs - master - rumina-v/database

LibraryApp/Services/ReaderService.cs
60 строк2 KB
Viktoria Rumina
Add solution files
04 июн 2026, 12:13
04 июн 2026, 12:1373cfef0
using LibraryApp.Abstractions;
using LibraryApp.Entities;

namespace LibraryApp.Services;

public class ReaderService : IReaderService
{
    private readonly IReaderRepository _readerRepository;
    private readonly ILoanRepository _loanRepository;

    public ReaderService(IReaderRepository readerRepository, ILoanRepository loanRepository)
    {
        _readerRepository = readerRepository;
        _loanRepository = loanRepository;
    }

    public async Task<List<Reader>> GetAllAsync() => await _readerRepository.GetAllAsync();

    public async Task<Reader?> GetByIdAsync(int id) => await _readerRepository.GetByIdAsync(id);

    public async Task<Reader> AddAsync(Reader reader)
    {
        if (string.IsNullOrWhiteSpace(reader.FullName))
            throw new Exception("FullName is required");

        if (string.IsNullOrWhiteSpace(reader.Email))
            throw new Exception("Email is required");

        reader.RegisteredAt = DateTime.UtcNow;

        return await _readerRepository.AddAsync(reader);
    }

    public async Task<Reader?> UpdateAsync(int id, Reader reader)
    {
        var existing = await _readerRepository.GetByIdAsync(id);
        if (existing is null) return null;

        existing.FullName = reader.FullName;
        existing.Email = reader.Email;

        return await _readerRepository.UpdateAsync(id, existing);
    }

    public async Task<bool> DeleteAsync(int id)
    {
        var activeLoans = await _loanRepository.GetActiveLoansByReaderIdAsync(id);

        if (activeLoans.Any())
            throw new Exception("Reader has active loans");

        return await _readerRepository.DeleteAsync(id);
    }

    public async Task<List<Reader>> GetReadersWithOverdueBooksAsync()
        => await _readerRepository.GetReadersWithOverdueBooksAsync();

    public async Task<List<Reader>> GetTopReadersByLoansCountAsync(int count)
        => await _readerRepository.GetTopReadersByLoansCountAsync(count);
}