import { BaseEntity } from "@edr/api-common";
import { Column, Entity, Index } from "typeorm";

/**
 * One document in the freight portal's public library (/publications) — a
 * PDF, Markdown write-up, or PowerPoint deck about the platform, uploaded and
 * curated from the backoffice. Unlike `SupportDocument`'s five fixed slugs
 * edited in place, this is a real table of many rows and each upload is a
 * whole new file — there is no version-history log here, a re-upload just
 * replaces the file columns (see `PublicationsService.replaceFile`).
 */
@Entity({ schema: "freight", name: "publications" })
@Index(["published", "sortOrder"])
export class Publication extends BaseEntity {
  @Column({ name: "title", type: "varchar", length: 200 })
  title!: string;

  @Column({ name: "description", type: "text", nullable: true })
  description?: string | null;

  @Column({ name: "category", type: "varchar", length: 60, nullable: true })
  category?: string | null;

  /** MinIO object key. Never a signed URL — those expire; sign on read instead. */
  @Column({ name: "file_key", type: "varchar", length: 512 })
  fileKey!: string;

  /** Original filename, used for the download's Content-Disposition. */
  @Column({ name: "file_name", type: "varchar", length: 255 })
  fileName!: string;

  @Column({ name: "file_mime_type", type: "varchar", length: 120 })
  fileMimeType!: string;

  @Column({ name: "file_size_bytes", type: "bigint" })
  fileSizeBytes!: number;

  /** Manual ordering in the backoffice list and the public grid. */
  @Column({ name: "sort_order", type: "integer", default: 0 })
  sortOrder!: number;

  /** Unpublish without deleting — hides it from the public list only. */
  @Column({ name: "published", type: "boolean", default: true })
  published!: boolean;

  @Column({ name: "published_at", type: "timestamptz", nullable: true })
  publishedAt?: Date | null;

  @Column({ name: "uploaded_by_id", type: "uuid", nullable: true })
  uploadedById?: string | null;
}