import { CreateDateColumn, Entity, Index, Column, RelationId, ManyToOne, PrimaryGeneratedColumn, UpdateDateColumn } from 'typeorm'
import { ObjectType, Field, ID } from 'type-graphql'

import { Domain, ScalarObject } from '@things-factory/shell'

import { TwinSpace } from './twin-space.js'

/*
 * TwinArea — 공간의 **논리적 구역(계층)**. 표현 무관(ISA-95 building→floor→zone).
 * area 단일화(space #2): deprecated `TwinSpace.content.areas`(blob) 를 정규화한 영구 자리.
 * 표현별 폴리곤(`TwinSpaceArea`)은 이 논리 구역을 `areaId` 로 참조한다(P2에서 binding.groupId→areaId 전환).
 * 안전 순서: P1=신설+인제스트 dual-write(content.areas 병행 유지) → P2 소비처 전환 → P3 blob 제거.
 */
@Entity()
@Index('ix_twin_area_0', (e: TwinArea) => [e.domain, e.space, e.areaId], { unique: true })
@ObjectType({ description: 'A logical (representation-agnostic) area in a space hierarchy (building/floor/zone). Polygons reference it by areaId.' })
export class TwinArea {
  @PrimaryGeneratedColumn('uuid')
  @Field(type => ID)
  readonly id: string

  @ManyToOne(type => Domain)
  @Field(type => Domain, { nullable: true, description: 'Owning tenant domain.' })
  domain?: Domain

  @RelationId((e: TwinArea) => e.domain)
  domainId?: string

  @ManyToOne(type => TwinSpace)
  @Field(type => TwinSpace, { nullable: true, description: 'Owning space.' })
  space?: TwinSpace

  @RelationId((e: TwinArea) => e.space)
  spaceRowId?: string

  @Column()
  @Field({ description: 'Stable logical area id (unique within a space). Polygons reference this via areaId.' })
  areaId: string

  @Column({ nullable: true })
  @Field({ nullable: true, description: 'Area name.' })
  name?: string

  @Column({ nullable: true })
  @Field({ nullable: true, description: 'Region type (building/floor/zone/yard/dock…).' })
  type?: string

  @Column({ nullable: true })
  @Field({ nullable: true, description: 'Parent logical area id (hierarchy). Root areas have none.' })
  parentId?: string

  @Column({ type: 'simple-json', nullable: true })
  @Field(type => ScalarObject, { nullable: true, description: 'Layout footprint hint { x, y, w, h } in design coords (representation-agnostic).' })
  layout?: any

  @CreateDateColumn()
  @Field({ nullable: true })
  createdAt?: Date

  @UpdateDateColumn()
  @Field({ nullable: true })
  updatedAt?: Date
}