feat: add MediatR handlers for template and channel CRUD

- ServiceResult<T>, ServiceError, ServiceErrorCode, Unit, ServiceResultHelper in Services/Core - RequestHandler<TRequest, TResponse> base class (MediatR-adapted, DoOnHandle pattern) - EmailTemplate handlers: Create, Update, Delete, Get, GetByService - EmailChannel handlers: Create, Update, Delete, Get, GetByService Ref: IT-628 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-02 01:07:13 +03:00
parent 73b506992c
commit a03d2269a6
26 changed files with 565 additions and 0 deletions
@@ -0,0 +1,16 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+using MediatR;
+using HrynCo.NotificationService.Services.Core;
+
+namespace HrynCo.NotificationService.Services.EmailChannels.Create;
+
+public sealed record CreateEmailChannelCommand(
+    string ServiceName,
+    int Priority,
+    EmailChannelType ChannelType,
+    EmailChannelSettings Settings,
+    int? DailyLimit,
+    int? MonthlyLimit,
+    int WarnThresholdPercent,
+    bool IsActive
+) : IRequest<ServiceResult<Guid>>;
@@ -0,0 +1,43 @@
+using HrynCo.NotificationService.DAL.Abstract;
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+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.EmailChannels.Create;
+
+internal sealed class CreateEmailChannelHandler
+    : RequestHandler<CreateEmailChannelCommand, ServiceResult<Guid>>
+{
+    private readonly IEmailChannelRepository _channels;
+
+    public CreateEmailChannelHandler(
+        IContextualSerilogLogger<CreateEmailChannelCommand> logger,
+        IUnitOfWork unitOfWork,
+        IEmailChannelRepository channels)
+        : base(logger, unitOfWork)
+    {
+        _channels = channels;
+    }
+
+    protected override async Task<ServiceResult<Guid>> DoOnHandle(
+        CreateEmailChannelCommand request, CancellationToken cancellationToken)
+    {
+        var channel = new EmailChannel
+        {
+            ServiceName = request.ServiceName,
+            Priority = request.Priority,
+            EmailChannelType = request.ChannelType,
+            Settings = request.Settings,
+            DailyLimit = request.DailyLimit,
+            MonthlyLimit = request.MonthlyLimit,
+            WarnThresholdPercent = request.WarnThresholdPercent,
+            IsActive = request.IsActive
+        };
+
+        await _channels.AddAsync(channel, cancellationToken);
+
+        return Success(channel.Id);
+    }
+}
@@ -0,0 +1,8 @@
+using MediatR;
+using HrynCo.NotificationService.Services.Core;
+using Unit = HrynCo.NotificationService.Services.Core.Unit;
+
+namespace HrynCo.NotificationService.Services.EmailChannels.Delete;
+
+public sealed record DeleteEmailChannelCommand(Guid Id)
+    : IRequest<ServiceResult<Unit>>;
@@ -0,0 +1,35 @@
+using HrynCo.NotificationService.DAL.Abstract;
+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.EmailChannels.Delete;
+
+internal sealed class DeleteEmailChannelHandler
+    : RequestHandler<DeleteEmailChannelCommand, ServiceResult<Unit>>
+{
+    private readonly IEmailChannelRepository _channels;
+
+    public DeleteEmailChannelHandler(
+        IContextualSerilogLogger<DeleteEmailChannelCommand> logger,
+        IUnitOfWork unitOfWork,
+        IEmailChannelRepository channels)
+        : base(logger, unitOfWork)
+    {
+        _channels = channels;
+    }
+
+    protected override async Task<ServiceResult<Unit>> DoOnHandle(
+        DeleteEmailChannelCommand request, CancellationToken cancellationToken)
+    {
+        var channel = await _channels.GetByIdAsync(request.Id, cancellationToken);
+
+        if (channel is null)
+            return Failure<Unit>("Email channel not found.", ServiceErrorCode.NotFound);
+
+        await _channels.DeleteAsync(channel, cancellationToken);
+
+        return Success(Unit.Value);
+    }
+}
@@ -0,0 +1,33 @@
+using HrynCo.NotificationService.DAL.Abstract;
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+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.EmailChannels.Get;
+
+internal sealed class GetEmailChannelHandler
+    : RequestHandler<GetEmailChannelQuery, ServiceResult<EmailChannel>>
+{
+    private readonly IEmailChannelRepository _channels;
+
+    public GetEmailChannelHandler(
+        IContextualSerilogLogger<GetEmailChannelQuery> logger,
+        IUnitOfWork unitOfWork,
+        IEmailChannelRepository channels)
+        : base(logger, unitOfWork)
+    {
+        _channels = channels;
+    }
+
+    protected override async Task<ServiceResult<EmailChannel>> DoOnHandle(
+        GetEmailChannelQuery request, CancellationToken cancellationToken)
+    {
+        var channel = await _channels.GetByIdAsync(request.Id, cancellationToken);
+
+        return channel is null
+            ? Failure<EmailChannel>("Email channel not found.", ServiceErrorCode.NotFound)
+            : Success(channel);
+    }
+}
@@ -0,0 +1,8 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+using MediatR;
+using HrynCo.NotificationService.Services.Core;
+
+namespace HrynCo.NotificationService.Services.EmailChannels.Get;
+
+public sealed record GetEmailChannelQuery(Guid Id)
+    : IRequest<ServiceResult<EmailChannel>>;
@@ -0,0 +1,30 @@
+using HrynCo.NotificationService.DAL.Abstract;
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+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.EmailChannels.GetByService;
+
+internal sealed class GetEmailChannelsHandler
+    : RequestHandler<GetEmailChannelsQuery, ServiceResult<IReadOnlyList<EmailChannel>>>
+{
+    private readonly IEmailChannelRepository _channels;
+
+    public GetEmailChannelsHandler(
+        IContextualSerilogLogger<GetEmailChannelsQuery> logger,
+        IUnitOfWork unitOfWork,
+        IEmailChannelRepository channels)
+        : base(logger, unitOfWork)
+    {
+        _channels = channels;
+    }
+
+    protected override async Task<ServiceResult<IReadOnlyList<EmailChannel>>> DoOnHandle(
+        GetEmailChannelsQuery request, CancellationToken cancellationToken)
+    {
+        var channels = await _channels.GetByServiceAsync(request.ServiceName, cancellationToken);
+        return Success(channels);
+    }
+}
@@ -0,0 +1,8 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+using MediatR;
+using HrynCo.NotificationService.Services.Core;
+
+namespace HrynCo.NotificationService.Services.EmailChannels.GetByService;
+
+public sealed record GetEmailChannelsQuery(string ServiceName)
+    : IRequest<ServiceResult<IReadOnlyList<EmailChannel>>>;
@@ -0,0 +1,16 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+using MediatR;
+using HrynCo.NotificationService.Services.Core;
+using Unit = HrynCo.NotificationService.Services.Core.Unit;
+
+namespace HrynCo.NotificationService.Services.EmailChannels.Update;
+
+public sealed record UpdateEmailChannelCommand(
+    Guid Id,
+    int Priority,
+    EmailChannelSettings Settings,
+    int? DailyLimit,
+    int? MonthlyLimit,
+    int WarnThresholdPercent,
+    bool IsActive
+) : IRequest<ServiceResult<Unit>>;
@@ -0,0 +1,43 @@
+using HrynCo.NotificationService.DAL.Abstract;
+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.EmailChannels.Update;
+
+internal sealed class UpdateEmailChannelHandler
+    : RequestHandler<UpdateEmailChannelCommand, ServiceResult<Unit>>
+{
+    private readonly IEmailChannelRepository _channels;
+
+    public UpdateEmailChannelHandler(
+        IContextualSerilogLogger<UpdateEmailChannelCommand> logger,
+        IUnitOfWork unitOfWork,
+        IEmailChannelRepository channels)
+        : base(logger, unitOfWork)
+    {
+        _channels = channels;
+    }
+
+    protected override async Task<ServiceResult<Unit>> DoOnHandle(
+        UpdateEmailChannelCommand request, CancellationToken cancellationToken)
+    {
+        var channel = await _channels.GetByIdAsync(request.Id, cancellationToken);
+
+        if (channel is null)
+            return Failure<Unit>("Email channel not found.", ServiceErrorCode.NotFound);
+
+        channel.Priority = request.Priority;
+        channel.Settings = request.Settings;
+        channel.DailyLimit = request.DailyLimit;
+        channel.MonthlyLimit = request.MonthlyLimit;
+        channel.WarnThresholdPercent = request.WarnThresholdPercent;
+        channel.IsActive = request.IsActive;
+        channel.Updated = DateTimeOffset.UtcNow;
+
+        await _channels.UpdateAsync(channel, cancellationToken);
+
+        return Success(Unit.Value);
+    }
+}