import { Entity, Column, PrimaryColumn, Index } from 'typeorm';

@Entity('road_segment_stats')
@Index('idx_segment_congestion', ['congestionFactor'], { where: '"congestionFactor" > 1.1' })
export class RoadSegmentStat {
  @PrimaryColumn()
  segmentId: string; // OSM Way ID or similar

  @Column('float', { default: 0 })
  averageSpeed: number;

  @Column('float', { default: 1.0 })
  congestionFactor: number; // 1.0 = Free flow, >1.0 = Congested

  @Column('boolean', { default: false })
  @Index()
  isClosed: boolean;

  @Column('int', { default: 0 })
  sampleCount: number;

  @Column({
    type: 'geography',
    spatialFeatureType: 'LineString',
    srid: 4326,
    nullable: true,
  })
  @Index({ spatial: true })
  geometry: any;

  @Column({ type: 'timestamp', default: () => 'CURRENT_TIMESTAMP' })
  lastUpdated: Date;
}