import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  ManyToOne,
  JoinColumn,
  Index,
} from 'typeorm';
import { OnboardingSession } from './onboarding-session.entity';

export enum ScanType {
  PHOTO = 'photo',
  AUDIO = 'audio',
  BARCODE = 'barcode',
}

export enum ScanStatus {
  PENDING = 'pending',
  PROCESSING = 'processing',
  DETECTED = 'detected',
  CONFIRMED = 'confirmed',
  REJECTED = 'rejected',
  FAILED = 'failed',
}

@Entity({ schema: 'catalog', name: 'product_scans' })
@Index(['sessionId', 'status'])
export class ProductScan {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ name: 'session_id' })
  sessionId: string;

  @Column({ name: 'tenant_id', nullable: true })
  tenantId: string;

  @Column({ type: 'enum', enum: ScanType })
  type: ScanType;

  @Column({ type: 'enum', enum: ScanStatus, default: ScanStatus.PENDING })
  status: ScanStatus;

  // Input data
  @Column({ name: 'media_url', type: 'text', nullable: true })
  mediaUrl: string;

  @Column({ name: 'media_mime_type', length: 50, nullable: true })
  mediaMimeType: string;

  @Column({ name: 'raw_text', type: 'text', nullable: true })
  rawText: string;

  // OCR/Transcription results
  @Column({ name: 'detected_name', length: 150, nullable: true })
  detectedName: string;

  @Column({ name: 'detected_price', type: 'decimal', precision: 10, scale: 2, nullable: true })
  detectedPrice: number;

  @Column({ name: 'detected_barcode', length: 50, nullable: true })
  detectedBarcode: string;

  @Column({ name: 'confidence_score', type: 'decimal', precision: 3, scale: 2, nullable: true })
  confidenceScore: number;

  // Matched template
  @Column({ name: 'template_id', nullable: true })
  templateId: string;

  @Column({ name: 'template_match_score', type: 'decimal', precision: 3, scale: 2, nullable: true })
  templateMatchScore: number;

  // Final product created
  @Column({ name: 'product_id', nullable: true })
  productId: string;

  // User corrections
  @Column({ name: 'user_confirmed_name', length: 150, nullable: true })
  userConfirmedName: string;

  @Column({ name: 'user_confirmed_price', type: 'decimal', precision: 10, scale: 2, nullable: true })
  userConfirmedPrice: number;

  // Metadata
  @Column({ type: 'jsonb', nullable: true })
  metadata: Record<string, any>;

  @Column({ name: 'error_message', type: 'text', nullable: true })
  errorMessage: string;

  @Column({ name: 'processing_time_ms', type: 'int', nullable: true })
  processingTimeMs: number;

  @CreateDateColumn({ name: 'created_at' })
  createdAt: Date;

  // Relations
  @ManyToOne(() => OnboardingSession, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'session_id' })
  session: OnboardingSession;
}