import { Entity, Column, PrimaryGeneratedColumn, CreateDateColumn, UpdateDateColumn, ManyToOne } from 'typeorm';
import { User } from '../users/user.entity';
import { Project } from '../projects/project.entity';

@Entity('advance_payments')
export class AdvancePayment {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ type: 'uuid', nullable: false })
  user_id: string;

  @ManyToOne(() => User)
  user: User;

  @Column({ type: 'varchar', length: 20, nullable: false })
  expense_type: string; // company or project

  @Column({ type: 'uuid', nullable: true })
  project_id: string;

  @ManyToOne(() => Project, project => project.advance_payments)
  project: Project;

  @Column({ type: 'decimal', precision: 18, scale: 2, nullable: false })
  amount: number;

  @Column({ type: 'varchar', length: 10, nullable: false })
  currency: string;

  @Column({ type: 'decimal', precision: 18, scale: 2, nullable: false })
  rmb_equivalent: number;

  @Column({ type: 'varchar', length: 255, nullable: false })
  purpose: string;

  @Column({ type: 'varchar', length: 50, nullable: false })
  status: string;

  @Column({ type: 'uuid', nullable: true })
  approver_id: string;

  @ManyToOne(() => User)
  approver: User;

  @Column({ type: 'text', nullable: true })
  description: string;

  @Column({ type: 'datetime', nullable: true })
  submitted_at: Date;

  @Column({ type: 'datetime', nullable: true })
  approved_at: Date;

  @Column({ type: 'datetime', nullable: true })
  rejected_at: Date;

  @Column({ type: 'decimal', precision: 18, scale: 2, default: 0 })
  used_amount: number;

  @Column({ type: 'decimal', precision: 18, scale: 2, default: 0 })
  remaining_amount: number;

  @CreateDateColumn()
  created_at: Date;

  @UpdateDateColumn()
  updated_at: Date;
}