Files
Nexus.Reader/src/NexusReader.Domain/Entities/Ebook.cs
T
Antigravity 541e9e1fb5 feat(ai-ux): deduplicate AI queries, handle ServiceUnavailable retries, and optimize reader canvas graph prerendering (#44)
This Pull Request encapsulates all outstanding AI, Blazor InteractiveAuto lifecycle, pgvector, and Firefox authorization/session compatibility fixes.

### Key Accomplishments:
1. **Concurrent Request Deduplication (Option B):** Implemented a thread-safe active task registry in `KnowledgeService` that groups concurrent graph extraction queries for the same content, preventing duplicate AI calls completely.
2. **Resilience Strategy for Downstream Demands:** Extended the `ai-retry` resilience pipeline to automatically intercept and retry on temporary Google API `503 ServiceUnavailable` / `high demand` spikes.
3. **Interactive Graph Generation Guard (Option A):** Prevented server-side prerender-phase graph requests in the reader canvas component.
4. **Firefox Compatibility & Cookie Handler:** Implemented an authentication endpoint and hybrid hidden-form submission flow to solve login, registration, and logout redirections and cookies securely.
5. **Autoscrolling & Graph Exclusions:** Added concept-to-block smooth scrolling, active block badging, and filtered out markdown code blocks from being extracted as nodes.

All unit tests compiled and passed 100% cleanly.

---------

Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Reviewed-on: #44
Co-authored-by: Antigravity <antigravity@google.com>
Co-committed-by: Antigravity <antigravity@google.com>
2026-05-18 17:53:36 +00:00

59 lines
1.5 KiB
C#

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace NexusReader.Domain.Entities;
/// <summary>
/// Represents an E-book uploaded or owned by a user.
/// </summary>
public class Ebook
{
[Key]
public Guid Id { get; set; } = Guid.NewGuid();
[Required]
[MaxLength(255)]
public string Title { get; set; } = string.Empty;
[Required]
public int AuthorId { get; set; }
[ForeignKey(nameof(AuthorId))]
public virtual Author Author { get; set; } = null!;
[Required]
public string FilePath { get; set; } = string.Empty;
public string? CoverUrl { get; set; }
[Required]
[MaxLength(128)]
public string TenantId { get; set; } = "global";
public DateTime AddedDate { get; set; } = DateTime.UtcNow;
public DateTime? LastReadDate { get; set; }
public double Progress { get; set; } = 0;
[MaxLength(255)]
public string? LastChapter { get; set; }
public int LastChapterIndex { get; set; } = 0;
public string? Description { get; set; }
/// <summary>
/// Gets or sets a value indicating whether the ebook has been processed by the AI ingestion engine
/// and is ready for reading (Knowledge Units generated).
/// </summary>
public bool IsReadyForReading { get; set; } = false;
// Relationship to NexusUser
[Required]
public string UserId { get; set; } = string.Empty;
[ForeignKey(nameof(UserId))]
public NexusUser? User { get; set; }
}