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 GetServicePushTemplateDefinitionsHandler(
    IContextualSerilogLogger<GetServicePushTemplateDefinitionsQuery> logger,
    INotificationServiceRepository services, IPushTemplateDefinitionRepository definitions)
    : RequestHandler<GetServicePushTemplateDefinitionsQuery, ServiceResult<IReadOnlyList<PushTemplateDefinitionDto>>>(logger)
{
    protected override async Task<ServiceResult<IReadOnlyList<PushTemplateDefinitionDto>>> DoOnHandle(GetServicePushTemplateDefinitionsQuery request, CancellationToken cancellationToken)
    {
        if (await services.GetAsync(request.ServiceId, cancellationToken) is null)
            return Failure<IReadOnlyList<PushTemplateDefinitionDto>>("Service not found.", ServiceErrorCode.NotFound);
        var all = await definitions.GetDefinitionsAsync(request.ServiceId, cancellationToken);
        return Success<IReadOnlyList<PushTemplateDefinitionDto>>(all.Select(PushTemplateDefinitionMapping.Map).ToList());
    }
}