import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn } from 'typeorm';

export const SubscriptionStatus = {
  TRIALING: 'trialing',
  ACTIVE: 'active',
  PAST_DUE: 'past_due',
  CANCELLED: 'cancelled',
  EXPIRED: 'expired',
} as const;
export type SubscriptionStatus = typeof SubscriptionStatus[keyof typeof SubscriptionStatus];

@Entity({ name: 'billing_subscriptions', schema: 'public' })
export class Subscription {
  @PrimaryGeneratedColumn('uuid')
  id!: string;

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

  @Column({ name: 'plan_id', type: 'uuid' })
  planId!: string;

  @Column({ type: 'varchar', length: 20, default: 'trialing' })
  status!: SubscriptionStatus;

  @Column({ name: 'current_period_start', type: 'timestamptz' })
  currentPeriodStart!: Date;

  @Column({ name: 'current_period_end', type: 'timestamptz' })
  currentPeriodEnd!: Date;

  @Column({ name: 'trial_ends_at', type: 'timestamptz', nullable: true })
  trialEndsAt?: Date;

  @Column({ name: 'cancelled_at', type: 'timestamptz', nullable: true })
  cancelledAt?: Date;

  @Column({ name: 'cancel_at_period_end', type: 'boolean', default: false })
  cancelAtPeriodEnd!: boolean;

  @Column({ name: 'next_plan_id', type: 'uuid', nullable: true })
  nextPlanId?: string; // for scheduled downgrades

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

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