feat: add release communications

backend/src/Socialize.Api/Modules/ReleaseCommunications/Services/ReleaseUpdateVisibility.cs

@@ -0,0 +1,46 @@
+using System.Security.Claims;
+using Microsoft.EntityFrameworkCore;
+using Socialize.Api.Data;
+using Socialize.Api.Modules.Identity.Contracts;
+using Socialize.Api.Modules.Organizations.Data;
+using Socialize.Api.Modules.Organizations.Services;
+using Socialize.Api.Modules.ReleaseCommunications.Data;
+
+namespace Socialize.Api.Modules.ReleaseCommunications.Services;
+
+internal static class ReleaseUpdateVisibility
+{
+    public static async Task<ReleaseUpdateAudienceContext> GetAudienceContextAsync(
+        AppDbContext dbContext,
+        ClaimsPrincipal user,
+        Guid userId,
+        CancellationToken ct)
+    {
+        bool isDeveloper = user.IsInRole(KnownRoles.Developer);
+        bool isOrganizationOwner = await dbContext.Organizations.AnyAsync(
+                                       organization => organization.OwnerUserId == userId,
+                                       ct)
+                                   || await dbContext.OrganizationMemberships.AnyAsync(
+                                       membership =>
+                                           membership.UserId == userId &&
+                                           membership.Role == OrganizationRoles.Owner,
+                                       ct);
+
+        return new ReleaseUpdateAudienceContext(isDeveloper, isOrganizationOwner);
+    }
+
+    public static IQueryable<ReleaseUpdate> VisibleTo(
+        this IQueryable<ReleaseUpdate> query,
+        ReleaseUpdateAudienceContext context)
+    {
+        return query.Where(update =>
+            update.Status == ReleaseUpdateStatus.Published &&
+            (update.Audience == ReleaseUpdateAudience.Everyone ||
+             (update.Audience == ReleaseUpdateAudience.OrganizationOwners && context.IsOrganizationOwner) ||
+             (update.Audience == ReleaseUpdateAudience.Developers && context.IsDeveloper)));
+    }
+}
+
+internal record ReleaseUpdateAudienceContext(
+    bool IsDeveloper,
+    bool IsOrganizationOwner);