import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  ManyToOne,
  OneToMany,
  JoinColumn,
} from 'typeorm';
import { AppRuntime, DatabaseType } from '../../common/enums';
import { User } from '../../users/entities/user.entity';
import { Deployment } from '../../deployments/entities/deployment.entity';

@Entity('applications')
export class Application {
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column()
  name: string;

  @Column({ nullable: true })
  description: string;

  @Column({ type: 'enum', enum: AppRuntime })
  runtime: AppRuntime;

  @Column({ type: 'enum', enum: DatabaseType, default: DatabaseType.NONE })
  databaseType: DatabaseType;

  @Column({ nullable: true })
  dbUsername: string;

  @Column({ nullable: true })
  dbPassword: string;

  @Column({ nullable: true })
  gitUrl: string;

  @Column({ nullable: true })
  gitToken: string; // Personal access token for private repos

  @Column({ nullable: true })
  gitBranch: string; // Branch to clone (default: main)

  @Column({ nullable: true })
  codePath: string; // Path to uploaded zip

  @Column({ type: 'jsonb', nullable: true })
  envVars: Record<string, string>;

  // Resource configuration
  @Column({ default: '100m' })
  cpuRequest: string;

  @Column({ default: '500m' })
  cpuLimit: string;

  @Column({ default: '128Mi' })
  memoryRequest: string;

  @Column({ default: '512Mi' })
  memoryLimit: string;

  @Column({ default: 1 })
  replicas: number;

  @Column({ default: 3000 })
  port: number;

  // Relations
  @ManyToOne(() => User, (user: User) => user.applications, { onDelete: 'CASCADE' })
  @JoinColumn({ name: 'userId' })
  user: User;

  @Column()
  userId: string;

  @Column({ nullable: true })
  clusterId: string;

  @Column({ nullable: true })
  poolId: string; // Cluster pool used for load-balanced assignment

  @OneToMany(() => Deployment, (deployment: Deployment) => deployment.application)
  deployments: Deployment[];

  // Metadata
  @Column({ nullable: true })
  latestImageTag: string;

  @Column({ nullable: true })
  subdomain: string; // <subdomain>.apps.cloudhost.local

  @CreateDateColumn()
  createdAt: Date;

  @UpdateDateColumn()
  updatedAt: Date;
}