ANTOOZA-BACKEND/Application/Features/Api/DonationAlert/ToggleActive/Handler.cs

using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using SharedKernel;
using SharedKernel.Results;
using Microsoft.EntityFrameworkCore;

namespace Application.Features.Api.DonationAlert.ToggleActive;

internal sealed class Handler(IAppDbContext db) : ICommandHandler<Command, Result<Response>>
{
    public async Task<Result<Response>> Handle(Command r, CancellationToken ct)
    {
        var config = await db.DonationAlertConfig
            .FirstOrDefaultAsync(c => c.ID == r.ID && c.ChannelID == r.ChannelID, ct);

        if (config is null)
        {
            return Result.Failure<Response>(Error.NotFound("DonationAlertConfig.NotFound", "설정을 찾을 수 없습니다."));
        }

        if (config.IsActive == r.IsActive)
        {
            return Result.Success(new Response(config.ID, config.IsActive));
        }

        config.SetActive(r.IsActive);
        await db.SaveChangesAsync(ct);

        return Result.Success(new Response(config.ID, config.IsActive));
    }
}