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 UpsertPushTemplateDefinitionHandler(
    IContextualSerilogLogger<UpsertPushTemplateDefinitionCommand> logger, IPushTemplateDefinitionRepository definitions)
    : RequestHandler<UpsertPushTemplateDefinitionCommand, ServiceResult<PushTemplateDefinitionDto>>(logger)
{
    protected override async Task<ServiceResult<PushTemplateDefinitionDto>> DoOnHandle(UpsertPushTemplateDefinitionCommand request, CancellationToken cancellationToken)
    {
        try
        {
            var definition = await definitions.UpsertDefinitionAsync(request.Patch, cancellationToken);
            return definition is null
                ? Failure<PushTemplateDefinitionDto>("Service not found.", ServiceErrorCode.NotFound)
                : Success(PushTemplateDefinitionMapping.Map(definition));
        }
        catch (EmailTemplateWriteException error)
        {
            return Failure<PushTemplateDefinitionDto>(error.Message, error.IsConflict ? ServiceErrorCode.Conflict : ServiceErrorCode.InvalidRequest);
        }
    }
}