feat: pivot to social media workflow app

backend/Modules/Approvals/Handlers/CreateApprovalRequest.cs

@@ -0,0 +1,118 @@
+using System.Security.Cryptography;
+using Socialize.Infrastructure.Security;
+using Socialize.Modules.Notifications.Contracts;
+
+namespace Socialize.Modules.Approvals.Handlers;
+
+public record CreateApprovalRequestRequest(
+    Guid WorkspaceId,
+    Guid ContentItemId,
+    string Stage,
+    string ReviewerName,
+    string ReviewerEmail,
+    DateTimeOffset? DueAt);
+
+public class CreateApprovalRequestRequestValidator
+    : Validator<CreateApprovalRequestRequest>
+{
+    public CreateApprovalRequestRequestValidator()
+    {
+        RuleFor(x => x.WorkspaceId).NotEmpty();
+        RuleFor(x => x.ContentItemId).NotEmpty();
+        RuleFor(x => x.Stage).NotEmpty().MaximumLength(64);
+        RuleFor(x => x.ReviewerName).NotEmpty().MaximumLength(256);
+        RuleFor(x => x.ReviewerEmail).NotEmpty().MaximumLength(256).EmailAddress();
+    }
+}
+
+public class CreateApprovalRequestHandler(
+    AppDbContext dbContext,
+    AccessScopeService accessScopeService,
+    INotificationEventWriter notificationEventWriter)
+    : Endpoint<CreateApprovalRequestRequest, ApprovalRequestDto>
+{
+    public override void Configure()
+    {
+        Post("/api/approvals");
+        Options(o => o.WithTags("Approvals"));
+    }
+
+    public override async Task HandleAsync(CreateApprovalRequestRequest request, CancellationToken ct)
+    {
+        ContentItem? contentItem = await dbContext.ContentItems
+            .SingleOrDefaultAsync(
+                candidate => candidate.Id == request.ContentItemId && candidate.WorkspaceId == request.WorkspaceId,
+                ct);
+
+        if (contentItem is null)
+        {
+            AddError(request => request.ContentItemId, "The selected content item does not exist in the active workspace.");
+            await SendErrorsAsync(StatusCodes.Status400BadRequest, ct);
+            return;
+        }
+
+        if (!accessScopeService.CanManageWorkspace(User, contentItem.WorkspaceId))
+        {
+            await SendForbiddenAsync(ct);
+            return;
+        }
+
+        ApprovalRequest approval = new()
+        {
+            Id = Guid.NewGuid(),
+            WorkspaceId = request.WorkspaceId,
+            ContentItemId = request.ContentItemId,
+            Stage = request.Stage.Trim(),
+            ReviewerName = request.ReviewerName.Trim(),
+            ReviewerEmail = request.ReviewerEmail.Trim(),
+            RequestedByUserId = User.GetUserId(),
+            DueAt = request.DueAt,
+            State = "Pending",
+            AccessToken = Convert.ToHexString(RandomNumberGenerator.GetBytes(16)).ToLowerInvariant(),
+            SentAt = DateTimeOffset.UtcNow,
+        };
+
+        dbContext.ApprovalRequests.Add(approval);
+
+        if (approval.Stage == "Internal")
+        {
+            contentItem.Status = "In internal review";
+        }
+        else if (approval.Stage == "Client")
+        {
+            contentItem.Status = "In client review";
+        }
+
+        await dbContext.SaveChangesAsync(ct);
+
+        await notificationEventWriter.WriteAsync(
+            new NotificationEventWriteModel(
+                approval.WorkspaceId,
+                approval.ContentItemId,
+                "approval.requested",
+                "ApprovalRequest",
+                approval.Id,
+                $"Approval requested from {approval.ReviewerName} for {contentItem.Title}.",
+                null,
+                approval.ReviewerEmail,
+                $$"""{"stage":"{{approval.Stage}}","accessToken":"{{approval.AccessToken}}"}"""),
+            ct);
+
+        ApprovalRequestDto dto = new(
+            approval.Id,
+            approval.WorkspaceId,
+            approval.ContentItemId,
+            approval.Stage,
+            approval.ReviewerName,
+            approval.ReviewerEmail,
+            approval.RequestedByUserId,
+            approval.DueAt,
+            approval.State,
+            approval.AccessToken,
+            approval.SentAt,
+            approval.CompletedAt,
+            []);
+
+        await SendAsync(dto, StatusCodes.Status201Created, ct);
+    }
+}

backend/Modules/Approvals/Handlers/GetApprovals.cs

@@ -0,0 +1,117 @@
+using Socialize.Infrastructure.Security;
+
+namespace Socialize.Modules.Approvals.Handlers;
+
+public record GetApprovalsRequest(Guid ContentItemId);
+
+public record ApprovalDecisionDto(
+    Guid Id,
+    Guid ApprovalRequestId,
+    string Decision,
+    string? Comment,
+    Guid? DecidedByUserId,
+    string DecidedByName,
+    string DecidedByEmail,
+    string? DecidedByPortraitUrl,
+    DateTimeOffset CreatedAt);
+
+public record ApprovalRequestDto(
+    Guid Id,
+    Guid WorkspaceId,
+    Guid ContentItemId,
+    string Stage,
+    string ReviewerName,
+    string ReviewerEmail,
+    Guid RequestedByUserId,
+    DateTimeOffset? DueAt,
+    string State,
+    string AccessToken,
+    DateTimeOffset SentAt,
+    DateTimeOffset? CompletedAt,
+    IReadOnlyCollection<ApprovalDecisionDto> Decisions);
+
+public class GetApprovalsHandler(
+    AppDbContext dbContext,
+    AccessScopeService accessScopeService)
+    : Endpoint<GetApprovalsRequest, IReadOnlyCollection<ApprovalRequestDto>>
+{
+    public override void Configure()
+    {
+        Get("/api/approvals");
+        Options(o => o.WithTags("Approvals"));
+    }
+
+    public override async Task HandleAsync(GetApprovalsRequest request, CancellationToken ct)
+    {
+        ContentItem? item = await dbContext.ContentItems
+            .SingleOrDefaultAsync(candidate => candidate.Id == request.ContentItemId, ct);
+        if (item is null)
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        if (!accessScopeService.CanReviewContent(User, item.WorkspaceId, item.ClientId, item.ProjectId))
+        {
+            await SendForbiddenAsync(ct);
+            return;
+        }
+
+        List<ApprovalRequest> approvals = await dbContext.ApprovalRequests
+            .Where(approval => approval.ContentItemId == request.ContentItemId)
+            .OrderByDescending(approval => approval.SentAt)
+            .ToListAsync(ct);
+
+        List<Guid> approvalIds = approvals
+            .Select(approval => approval.Id)
+            .ToList();
+
+        List<ApprovalDecision> decisions = await dbContext.ApprovalDecisions
+            .Where(decision => approvalIds.Contains(decision.ApprovalRequestId))
+            .OrderByDescending(decision => decision.CreatedAt)
+            .ToListAsync(ct);
+
+        List<Guid> decidedByUserIds = decisions
+            .Where(decision => decision.DecidedByUserId.HasValue)
+            .Select(decision => decision.DecidedByUserId!.Value)
+            .Distinct()
+            .ToList();
+
+        Dictionary<Guid, string?> decisionPortraits = await dbContext.Users
+            .Where(user => decidedByUserIds.Contains(user.Id))
+            .ToDictionaryAsync(user => user.Id, user => user.PortraitUrl, ct);
+
+        List<ApprovalRequestDto> dtos = approvals
+            .Select(approval => new ApprovalRequestDto(
+                approval.Id,
+                approval.WorkspaceId,
+                approval.ContentItemId,
+                approval.Stage,
+                approval.ReviewerName,
+                approval.ReviewerEmail,
+                approval.RequestedByUserId,
+                approval.DueAt,
+                approval.State,
+                approval.AccessToken,
+                approval.SentAt,
+                approval.CompletedAt,
+                decisions
+                    .Where(decision => decision.ApprovalRequestId == approval.Id)
+                    .Select(decision => new ApprovalDecisionDto(
+                        decision.Id,
+                        decision.ApprovalRequestId,
+                        decision.Decision,
+                        decision.Comment,
+                        decision.DecidedByUserId,
+                        decision.DecidedByName,
+                        decision.DecidedByEmail,
+                        decision.DecidedByUserId.HasValue
+                            ? decisionPortraits.GetValueOrDefault(decision.DecidedByUserId.Value)
+                            : null,
+                        decision.CreatedAt))
+                    .ToList()))
+            .ToList();
+
+        await SendOkAsync(dtos, ct);
+    }
+}

backend/Modules/Approvals/Handlers/SubmitApprovalDecision.cs

@@ -0,0 +1,169 @@
+using Socialize.Infrastructure.Security;
+using Socialize.Modules.Notifications.Contracts;
+
+namespace Socialize.Modules.Approvals.Handlers;
+
+public record SubmitApprovalDecisionRequest(
+    string Decision,
+    string? Comment,
+    string? ReviewerName,
+    string? ReviewerEmail);
+
+public class SubmitApprovalDecisionRequestValidator
+    : Validator<SubmitApprovalDecisionRequest>
+{
+    public SubmitApprovalDecisionRequestValidator()
+    {
+        RuleFor(x => x.Decision).NotEmpty().MaximumLength(64);
+        RuleFor(x => x.Comment).MaximumLength(2048);
+        RuleFor(x => x.ReviewerName).MaximumLength(256);
+        RuleFor(x => x.ReviewerEmail).MaximumLength(256).EmailAddress().When(x => !string.IsNullOrWhiteSpace(x.ReviewerEmail));
+    }
+}
+
+public class SubmitApprovalDecisionHandler(
+    AppDbContext dbContext,
+    AccessScopeService accessScopeService,
+    INotificationEventWriter notificationEventWriter)
+    : Endpoint<SubmitApprovalDecisionRequest, ApprovalRequestDto>
+{
+    public override void Configure()
+    {
+        Post("/api/approvals/{id}/decisions");
+        AllowAnonymous();
+        Options(o => o.WithTags("Approvals"));
+    }
+
+    public override async Task HandleAsync(SubmitApprovalDecisionRequest request, CancellationToken ct)
+    {
+        Guid id = Route<Guid>("id");
+
+        ApprovalRequest? approval = await dbContext.ApprovalRequests.SingleOrDefaultAsync(candidate => candidate.Id == id, ct);
+        if (approval is null)
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        ContentItem? contentItem = await dbContext.ContentItems.SingleOrDefaultAsync(candidate => candidate.Id == approval.ContentItemId, ct);
+        if (contentItem is null)
+        {
+            await SendNotFoundAsync(ct);
+            return;
+        }
+
+        if (User?.Identity?.IsAuthenticated == true &&
+            !accessScopeService.CanReviewContent(User, contentItem.WorkspaceId, contentItem.ClientId, contentItem.ProjectId))
+        {
+            await SendForbiddenAsync(ct);
+            return;
+        }
+
+        string normalizedDecision = request.Decision.Trim();
+        string decidedByName = User?.Identity?.IsAuthenticated == true
+            ? User.GetAlias() ?? User.GetName()
+            : string.IsNullOrWhiteSpace(request.ReviewerName) ? approval.ReviewerName : request.ReviewerName.Trim();
+        string decidedByEmail = User?.Identity?.IsAuthenticated == true
+            ? User.GetEmail()
+            : string.IsNullOrWhiteSpace(request.ReviewerEmail) ? approval.ReviewerEmail : request.ReviewerEmail.Trim();
+
+        ApprovalDecision decision = new()
+        {
+            Id = Guid.NewGuid(),
+            ApprovalRequestId = approval.Id,
+            Decision = normalizedDecision,
+            Comment = string.IsNullOrWhiteSpace(request.Comment) ? null : request.Comment.Trim(),
+            DecidedByUserId = User?.Identity?.IsAuthenticated == true ? User.GetUserId() : null,
+            DecidedByName = decidedByName,
+            DecidedByEmail = decidedByEmail,
+            CreatedAt = DateTimeOffset.UtcNow,
+        };
+
+        approval.State = normalizedDecision;
+        approval.CompletedAt = DateTimeOffset.UtcNow;
+
+        if (approval.Stage == "Internal")
+        {
+            contentItem.Status = normalizedDecision switch
+            {
+                "Approved" => "Ready for client review",
+                "Changes requested" => "Changes requested internally",
+                "Rejected" => "Rejected",
+                _ => contentItem.Status,
+            };
+        }
+        else if (approval.Stage == "Client")
+        {
+            contentItem.Status = normalizedDecision switch
+            {
+                "Approved" => "Approved",
+                "Changes requested" => "Changes requested by client",
+                "Rejected" => "Rejected",
+                _ => contentItem.Status,
+            };
+        }
+
+        dbContext.ApprovalDecisions.Add(decision);
+        await dbContext.SaveChangesAsync(ct);
+
+        await notificationEventWriter.WriteAsync(
+            new NotificationEventWriteModel(
+                approval.WorkspaceId,
+                approval.ContentItemId,
+                "approval.decision.recorded",
+                "ApprovalDecision",
+                decision.Id,
+                $"{decidedByName} recorded {normalizedDecision} for {contentItem.Title}.",
+                null,
+                decidedByEmail,
+                $$"""{"stage":"{{approval.Stage}}","status":"{{contentItem.Status}}"}"""),
+            ct);
+
+        List<ApprovalDecision> decisions = await dbContext.ApprovalDecisions
+            .Where(candidate => candidate.ApprovalRequestId == approval.Id)
+            .OrderByDescending(candidate => candidate.CreatedAt)
+            .ToListAsync(ct);
+
+        List<Guid> decidedByUserIds = decisions
+            .Where(candidate => candidate.DecidedByUserId.HasValue)
+            .Select(candidate => candidate.DecidedByUserId!.Value)
+            .Distinct()
+            .ToList();
+
+        Dictionary<Guid, string?> decisionPortraits = await dbContext.Users
+            .Where(user => decidedByUserIds.Contains(user.Id))
+            .ToDictionaryAsync(user => user.Id, user => user.PortraitUrl, ct);
+
+        List<ApprovalDecisionDto> decisionDtos = decisions
+            .Select(candidate => new ApprovalDecisionDto(
+                candidate.Id,
+                candidate.ApprovalRequestId,
+                candidate.Decision,
+                candidate.Comment,
+                candidate.DecidedByUserId,
+                candidate.DecidedByName,
+                candidate.DecidedByEmail,
+                candidate.DecidedByUserId.HasValue
+                    ? decisionPortraits.GetValueOrDefault(candidate.DecidedByUserId.Value)
+                    : null,
+                candidate.CreatedAt))
+            .ToList();
+
+        ApprovalRequestDto dto = new(
+            approval.Id,
+            approval.WorkspaceId,
+            approval.ContentItemId,
+            approval.Stage,
+            approval.ReviewerName,
+            approval.ReviewerEmail,
+            approval.RequestedByUserId,
+            approval.DueAt,
+            approval.State,
+            approval.AccessToken,
+            approval.SentAt,
+            approval.CompletedAt,
+            decisionDtos);
+
+        await SendOkAsync(dto, ct);
+    }
+}