import {
  Column,
  CreateDateColumn,
  DeleteDateColumn,
  Entity,
  Index,
  JoinColumn,
  ManyToOne,
  PrimaryGeneratedColumn,
  UpdateDateColumn,
} from 'typeorm';
import { bigintNumber, decimalNumber } from '../common/transformers';
import { MotionFormat, PreprocessState, PublishStatus, SourceType } from '../common/enums';
import { Song } from './song.entity';

/** 动作数据 —— 契约 data-models.md §3 */
@Entity('motions')
@Index('idx_motions_song_id', ['songId'])
@Index('idx_motions_status', ['status'])
@Index('idx_motions_format', ['format'])
export class Motion {
  @PrimaryGeneratedColumn({ type: 'bigint' })
  id!: number;

  @Column({ name: 'song_id', type: 'bigint', nullable: true, transformer: bigintNumber })
  songId!: number | null;

  @ManyToOne(() => Song, { nullable: true, onDelete: 'SET NULL' })
  @JoinColumn({ name: 'song_id' })
  song?: Song | null;

  @Column({ type: 'varchar', length: 200 })
  name!: string;

  @Column({ type: 'varchar', length: 24 })
  format!: MotionFormat;

  @Column({ name: 'file_asset_id', type: 'bigint', nullable: true, transformer: bigintNumber })
  fileAssetId!: number | null;

  @Column({ type: 'decimal', precision: 8, scale: 3, nullable: true, transformer: decimalNumber })
  fps!: number | null;

  @Column({ name: 'frame_count', type: 'int', nullable: true })
  frameCount!: number | null;

  @Column({ name: 'duration_ms', type: 'int', nullable: true })
  durationMs!: number | null;

  // ---- 预处理产物（T-WEB-006）----
  @Column({ name: 'keypoint_format', type: 'varchar', length: 32, nullable: true })
  keypointFormat!: string | null;

  @Column({ name: 'keypoint_asset_id', type: 'bigint', nullable: true, transformer: bigintNumber })
  keypointAssetId!: number | null;

  @Column({ name: 'keypoint_frames', type: 'int', nullable: true })
  keypointFrames!: number | null;

  /** 骨架缩略图资产（预处理时生成；失败不影响预处理） */
  @Column({ name: 'thumbnail_asset_id', type: 'bigint', nullable: true, transformer: bigintNumber })
  thumbnailAssetId!: number | null;

  @Column({ name: 'preprocess_state', type: 'varchar', length: 16, default: PreprocessState.None })
  preprocessState!: PreprocessState;

  @Column({ name: 'preprocess_error', type: 'text', nullable: true })
  preprocessError!: string | null;

  // ---- 来源五元组（必填）----
  @Column({ name: 'source_type', type: 'varchar', length: 32 })
  sourceType!: SourceType;

  @Column({ name: 'source_name', type: 'varchar', length: 200 })
  sourceName!: string;

  @Column({ name: 'source_url', type: 'varchar', length: 500 })
  sourceUrl!: string;

  @Column({ type: 'varchar', length: 100 })
  license!: string;

  @Column({ type: 'varchar', length: 200 })
  author!: string;

  @Column({ type: 'varchar', length: 16, default: PublishStatus.Draft })
  status!: PublishStatus;

  @CreateDateColumn({ name: 'created_at', type: 'datetime' })
  createdAt!: Date;

  @UpdateDateColumn({ name: 'updated_at', type: 'datetime' })
  updatedAt!: Date;

  @DeleteDateColumn({ name: 'deleted_at', type: 'datetime', nullable: true })
  deletedAt!: Date | null;
}