import {
  Table,
  Column,
  DataType,
  Model,
  ForeignKey,
  BelongsTo,
  Index,
} from 'sequelize-typescript';
import { Challenge } from './challenge.model';
import { User } from '../../users/models/user.model';

export enum ChallengeParticipantStatus {
  ACTIVE = 'active',
  COMPLETED = 'completed',
  LEFT = 'left',
}

@Table({
  tableName: 't_challenge_participants',
  underscored: true,
})
export class ChallengeParticipant extends Model {
  @Column({
    type: DataType.CHAR(36),
    defaultValue: DataType.UUIDV4,
    primaryKey: true,
  })
  declare id: string;


  @ForeignKey(() => Challenge)
  @Column({
    type: DataType.CHAR(36),
    allowNull: false,
    comment: '挑战 ID',
  })
  declare challengeId: string;


  @ForeignKey(() => User)
  @Column({
    type: DataType.STRING(64),
    allowNull: false,
    comment: '用户 ID',
  })
  declare userId: string;

  @Column({
    type: DataType.INTEGER,
    allowNull: false,
    defaultValue: 0,
    comment: '当前进度值',
  })
  declare progressValue: number;

  @Column({
    type: DataType.INTEGER,
    allowNull: false,
    comment: '目标值，通常与挑战 targetValue 相同',
  })
  declare targetValue: number;

  @Column({
    type: DataType.ENUM('active', 'completed', 'left'),
    allowNull: false,
    defaultValue: ChallengeParticipantStatus.ACTIVE,
    comment: '参与状态',
  })
  declare status: ChallengeParticipantStatus;

  @Column({
    type: DataType.DATE,
    allowNull: false,
    defaultValue: DataType.NOW,
    comment: '加入时间',
  })
  declare joinedAt: Date;

  @Column({
    type: DataType.DATE,
    allowNull: true,
    comment: '退出时间',
  })
  declare leftAt: Date | null;

  @Column({
    type: DataType.DATE,
    allowNull: true,
    comment: '最近一次更新进度的时间',
  })
  declare lastProgressAt: Date | null;

  @BelongsTo(() => Challenge)
  declare challenge?: Challenge;

  @BelongsTo(() => User)
  declare user?: User;
}