using HrynCo.NotificationService.DAL.Abstract.Repositories;
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 GetEmailTemplateDefinitionHandler(
    IContextualSerilogLogger<GetEmailTemplateDefinitionQuery> logger, IEmailTemplateDefinitionRepository definitions)
    : RequestHandler<GetEmailTemplateDefinitionQuery, ServiceResult<EmailTemplateDefinitionDto>>(logger)
{
    protected override async Task<ServiceResult<EmailTemplateDefinitionDto>> DoOnHandle(GetEmailTemplateDefinitionQuery request, CancellationToken cancellationToken)
    {
        var definition = await definitions.GetDefinitionAsync(request.ServiceId, request.Key, cancellationToken);
        return definition is null
            ? Failure<EmailTemplateDefinitionDto>("Template definition not found.", ServiceErrorCode.NotFound)
            : Success(TemplateDefinitionMapping.Map(definition));
    }
}