import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  Index,
  ManyToOne,
  JoinColumn,
} from 'typeorm';
import { WebhookEndpoint } from './endpoint.entity';

export type DeliveryStatus = 'pending' | 'sending' | 'delivered' | 'failed' | 'retrying' | 'cancelled';

@Entity({ name: 'deliveries', schema: 'webhooks' })
export class WebhookDelivery {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Index()
  @Column({ name: 'endpoint_id', type: 'uuid' })
  endpointId: string;

  @Index()
  @Column({ name: 'tenant_id', type: 'uuid' })
  tenantId: string;

  @Index()
  @Column({ name: 'event_type', type: 'varchar', length: 100 })
  eventType: string;

  @Column({ name: 'event_id', type: 'uuid' })
  eventId: string;

  @Column({ name: 'payload', type: 'jsonb' })
  payload: Record<string, any>;

  @Column({ name: 'payload_hash', type: 'varchar', length: 64, nullable: true })
  payloadHash: string;

  @Column({ name: 'request_url', type: 'text' })
  requestUrl: string;

  @Column({ name: 'request_method', type: 'varchar', length: 10 })
  requestMethod: string;

  @Column({ name: 'request_headers', type: 'jsonb', default: {} })
  requestHeaders: Record<string, string>;

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

  @Column({ name: 'response_headers', type: 'jsonb', default: {} })
  responseHeaders: Record<string, string>;

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

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

  @Index()
  @Column({ name: 'status', type: 'varchar', length: 20, default: 'pending' })
  status: DeliveryStatus;

  @Column({ name: 'attempt_number', type: 'int', default: 1 })
  attemptNumber: number;

  @Column({ name: 'max_attempts', type: 'int', default: 5 })
  maxAttempts: number;

  @Index()
  @Column({ name: 'next_retry_at', type: 'timestamptz', nullable: true })
  nextRetryAt: Date;

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

  @Column({ name: 'error_code', type: 'varchar', length: 50, nullable: true })
  errorCode: string;

  @Column({ name: 'scheduled_at', type: 'timestamptz', default: () => 'CURRENT_TIMESTAMP' })
  scheduledAt: Date;

  @Column({ name: 'started_at', type: 'timestamptz', nullable: true })
  startedAt: Date;

  @Column({ name: 'completed_at', type: 'timestamptz', nullable: true })
  completedAt: Date;

  @Index()
  @CreateDateColumn({ name: 'created_at', type: 'timestamptz' })
  createdAt: Date;

  @ManyToOne(() => WebhookEndpoint, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'endpoint_id' })
  endpoint: WebhookEndpoint;
}