refactor: rename domain types and introduce TransactionBehavior pattern

- Rename Template -> EmailTemplate, Provider -> EmailChannel, ProviderSettings -> EmailChannelSettings, ProviderType -> EmailChannelType, ProviderUsage -> EmailChannelUsage throughout all layers - Add Undefined = 0 to EmailChannelType enum for safe default handling - Remove SaveChangesAsync from EfRepository methods — repositories now only stage changes - Add SaveChangesAsync to IUnitOfWork and EfUnitOfWork - Add TransactionBehavior MediatR pipeline: wraps every handler in a transaction, saves and commits on success, rolls back on exception - Add MediatR package reference to Services project Ref: IT-628 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-05-02 00:16:47 +03:00
parent 088eab0428
commit 6dcc911fc2
28 changed files with 290 additions and 251 deletions
@@ -0,0 +1,100 @@
+using System.Text.Json;
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+using HrynCo.NotificationService.DAL.Abstract.Repositories;
+using HrynCo.NotificationService.DAL.EF.Core;
+using HrynCo.NotificationService.DAL.EF.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace HrynCo.NotificationService.DAL.EF.Repositories;
+
+internal sealed class EmailChannelRepository : EfRepository<EmailChannelEntity>, IEmailChannelRepository
+{
+    public EmailChannelRepository(NotificationDbContext dbContext) : base(dbContext)
+    {
+    }
+
+    public async Task<IReadOnlyList<EmailChannel>> GetByServiceAsync(string serviceName, CancellationToken ct = default)
+    {
+        var entities = await DbSet
+            .Where(x => x.ServiceName == serviceName)
+            .OrderBy(x => x.Priority)
+            .ToListAsync(ct);
+
+        return entities.Select(MapToDomain).ToList();
+    }
+
+    public async Task<EmailChannel?> GetByIdAsync(Guid id, CancellationToken ct = default)
+    {
+        EmailChannelEntity? entity = await DbSet.FindAsync([id], ct);
+        return entity is null ? null : MapToDomain(entity);
+    }
+
+    public Task AddAsync(EmailChannel channel, CancellationToken ct = default)
+    {
+        return base.AddAsync(MapToEntity(channel), ct);
+    }
+
+    public Task UpdateAsync(EmailChannel channel, CancellationToken ct = default)
+    {
+        EmailChannelEntity entity = MapToEntity(channel);
+        entity.Updated = DateTimeOffset.UtcNow;
+        Update(entity);
+        return Task.CompletedTask;
+    }
+
+    public async Task DeleteAsync(EmailChannel channel, CancellationToken ct = default)
+    {
+        EmailChannelEntity? entity = await DbSet.FindAsync([channel.Id], ct);
+        if (entity is not null)
+        {
+            Delete(entity);
+        }
+    }
+
+    private static EmailChannel MapToDomain(EmailChannelEntity e)
+    {
+        return new EmailChannel
+        {
+            Id = e.Id,
+            ServiceName = e.ServiceName,
+            Priority = e.Priority,
+            EmailChannelType = e.EmailChannelType,
+            Settings = DeserializeSettings(e.EmailChannelType, e.SettingsJson),
+            DailyLimit = e.DailyLimit,
+            MonthlyLimit = e.MonthlyLimit,
+            WarnThresholdPercent = e.WarnThresholdPercent,
+            IsActive = e.IsActive,
+            Created = e.Created,
+            Updated = e.Updated
+        };
+    }
+
+    private static EmailChannelEntity MapToEntity(EmailChannel p)
+    {
+        return new EmailChannelEntity
+        {
+            Id = p.Id,
+            ServiceName = p.ServiceName,
+            Priority = p.Priority,
+            EmailChannelType = p.EmailChannelType,
+            SettingsJson = JsonSerializer.Serialize(p.Settings),
+            DailyLimit = p.DailyLimit,
+            MonthlyLimit = p.MonthlyLimit,
+            WarnThresholdPercent = p.WarnThresholdPercent,
+            IsActive = p.IsActive,
+            Created = p.Created,
+            Updated = p.Updated
+        };
+    }
+
+    private static EmailChannelSettings DeserializeSettings(EmailChannelType type, string json)
+    {
+        return type switch
+        {
+            EmailChannelType.Smtp => JsonSerializer.Deserialize<SmtpChannelSettings>(json)
+                                 ?? throw new InvalidOperationException(
+                                     "Failed to deserialize SMTP EmailChannel settings."),
+            _ => throw new InvalidOperationException($"Unknown or undefined email channel type: {type}")
+        };
+    }
+}