using HrynCo.NotificationService.DAL.Abstract.Repositories;
using HrynCo.NotificationService.DAL.Abstract.Templates;
using HrynCo.NotificationService.Services.Core;
using HrynCo.NotificationService.Services.Logging;
using static HrynCo.NotificationService.Services.Core.ServiceResultHelper;

namespace HrynCo.NotificationService.Services.TemplateDefinitions;

internal sealed class DeletePushTemplateDefinitionHandler(
    IContextualSerilogLogger<DeletePushTemplateDefinitionCommand> logger, IPushTemplateDefinitionRepository repository)
    : RequestHandler<DeletePushTemplateDefinitionCommand, ServiceResult<Unit>>(logger)
{
    protected override async Task<ServiceResult<Unit>> DoOnHandle(DeletePushTemplateDefinitionCommand request, CancellationToken cancellationToken)
    {
        try
        {
            var removed = await repository.DeleteAsync(request.ServiceId, request.Key, request.Revision, cancellationToken);
            return removed ? Success(Unit.Value) : Failure<Unit>("Template definition not found.", ServiceErrorCode.NotFound);
        }
        catch (EmailTemplateWriteException error)
        {
            return Failure<Unit>(error.Message, error.IsConflict ? ServiceErrorCode.Conflict : ServiceErrorCode.InvalidRequest);
        }
    }
}