import {
  Entity,
  PrimaryGeneratedColumn,
  Column,
  CreateDateColumn,
  UpdateDateColumn,
  DeleteDateColumn,
  OneToMany,
  Index,
} from 'typeorm';
import { WeatherForecast } from './weather-forecast.entity';
import { WeatherObservation } from './weather-observation.entity';

@Entity('weather_stations')
export class WeatherStation {
  // Changed from serial to UUID in migration 1766300000006-1766300000008
  @PrimaryGeneratedColumn('uuid')
  id: string;

  @Column({ name: 'station_name' })
  @Index('idx_weather_stations_name')
  stationName: string;

  // Location coordinates (added in migration 1766300000001)
  @Column({ type: 'decimal', precision: 10, scale: 7, nullable: true })
  latitude?: number;

  @Column({ type: 'decimal', precision: 10, scale: 7, nullable: true })
  longitude?: number;

  @Column({ type: 'decimal', precision: 6, scale: 1, nullable: true })
  elevation?: number;

  @Column({ type: 'varchar', length: 50, nullable: true })
  timezone?: string;

  @Column({ name: 'current_temperature', type: 'decimal', precision: 4, scale: 1, nullable: true })
  currentTemperature?: number;

  @Column({ type: 'integer', nullable: true })
  humidity?: number;

  @Column({ name: 'cloud_cover', type: 'integer', nullable: true })
  cloudCover?: number;

  @Column({ type: 'decimal', precision: 5, scale: 1, nullable: true })
  visibility?: number;

  @Column({ name: 'wind_speed', type: 'decimal', precision: 5, scale: 1, nullable: true })
  windSpeed?: number;

  @Column({ name: 'wind_direction', type: 'integer', nullable: true })
  windDirection?: number;

  @Column({ length: 50, nullable: true })
  condition?: string;

  @Column({ name: 'observation_quality', length: 20, nullable: true })
  observationQuality?: string;

  // Audit fields (added in migration 1766300000014)
  @Column({ name: 'created_by', type: 'uuid', nullable: true })
  createdBy?: string;

  @Column({ name: 'updated_by', type: 'uuid', nullable: true })
  updatedBy?: string;

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

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

  // Soft delete support (added in migration 1766300000005)
  @DeleteDateColumn({ name: 'deleted_at', type: 'timestamptz', nullable: true })
  @Index('idx_weather_stations_deleted_at', { where: 'deleted_at IS NULL' })
  deletedAt?: Date;

  @OneToMany(() => WeatherForecast, (forecast) => forecast.weatherStation)
  forecasts: WeatherForecast[];

  @OneToMany(() => WeatherObservation, (observation) => observation.weatherStation)
  observations: WeatherObservation[];
}