using HrynCo.NotificationService.DAL.Abstract.Repositories;
using HrynCo.NotificationService.DAL.EF.Core;
using HrynCo.NotificationService.DAL.EF.Entities;
using Microsoft.EntityFrameworkCore;

namespace HrynCo.NotificationService.DAL.EF.Repositories;

internal sealed class EmailChannelUsageRepository : EfRepository<EmailChannelUsageEntity>, IEmailChannelUsageRepository
{
    public EmailChannelUsageRepository(NotificationDbContext dbContext) : base(dbContext)
    {
    }

    public async Task<int> GetDailyCountAsync(Guid providerId, DateOnly date, CancellationToken ct = default)
    {
        EmailChannelUsageEntity? entity = await DbSet
            .FirstOrDefaultAsync(x => x.ProviderId == providerId && x.Date == date, ct);

        return entity?.SentCount ?? 0;
    }

    public async Task<int> GetMonthlyCountAsync(Guid providerId, int year, int month, CancellationToken ct = default)
    {
        return await DbSet
            .Where(x => x.ProviderId == providerId
                        && x.Date.Year == year
                        && x.Date.Month == month)
            .SumAsync(x => x.SentCount, ct);
    }

    public async Task IncrementUsageAsync(Guid providerId, DateOnly date, CancellationToken ct = default)
    {
        EmailChannelUsageEntity? entity = await DbSet
            .FirstOrDefaultAsync(x => x.ProviderId == providerId && x.Date == date, ct);

        if (entity is null)
            await AddAsync(new EmailChannelUsageEntity { ProviderId = providerId, Date = date, SentCount = 1 }, ct);
        else
        {
            entity.SentCount++;
            Update(entity);
        }
    }
}