import { Entity, Column, ManyToOne, JoinColumn } from 'typeorm';
import { ApiProperty } from '@nestjs/swagger';
import { BaseEntity } from './base.entity';
import { User } from './user.entity';

@Entity({ name: 'sustainability_tracking', schema: 'analytics' })
export class SustainabilityTracking extends BaseEntity {
  @ApiProperty({ description: 'User ID' })
  @Column({ name: 'user_id' })
  userId: string;

  @ApiProperty({ description: 'Activity type that generated carbon footprint' })
  @Column({ name: 'activity_type', length: 50 })
  activityType: string; // transportation, accommodation, dining, activities

  @ApiProperty({ description: 'Activity details' })
  @Column({ name: 'activity_details', type: 'jsonb' })
  activityDetails: {
    description: string;
    location?: string;
    duration?: number;
    distance?: number;
    participants?: number;
    provider?: string;
  };

  @ApiProperty({ description: 'Carbon footprint in kg CO2' })
  @Column({ name: 'carbon_footprint_kg', type: 'decimal', precision: 10, scale: 3 })
  carbonFootprintKg: number;

  @ApiProperty({ description: 'Water usage in liters' })
  @Column({ name: 'water_usage_liters', type: 'decimal', precision: 10, scale: 2, nullable: true })
  waterUsageLiters: number;

  @ApiProperty({ description: 'Waste generated in kg' })
  @Column({ name: 'waste_generated_kg', type: 'decimal', precision: 8, scale: 3, nullable: true })
  wasteGeneratedKg: number;

  @ApiProperty({ description: 'Energy consumption in kWh' })
  @Column({ name: 'energy_consumption_kwh', type: 'decimal', precision: 10, scale: 3, nullable: true })
  energyConsumptionKwh: number;

  @ApiProperty({ description: 'Sustainability score (0-100)' })
  @Column({ name: 'sustainability_score', type: 'decimal', precision: 5, scale: 2 })
  sustainabilityScore: number;

  @ApiProperty({ description: 'Offset credits purchased' })
  @Column({ name: 'offset_credits_kg', type: 'decimal', precision: 10, scale: 3, default: 0 })
  offsetCreditsKg: number;

  @ApiProperty({ description: 'Cost of offset in USD' })
  @Column({ name: 'offset_cost_usd', type: 'decimal', precision: 8, scale: 2, default: 0 })
  offsetCostUsd: number;

  @ApiProperty({ description: 'Certification or verification data' })
  @Column({ name: 'certifications', type: 'jsonb', nullable: true })
  certifications: {
    ecoFriendly: boolean;
    carbonNeutral: boolean;
    sustainableTourism: boolean;
    localCommunitySupport: boolean;
    wildlifeProtection: boolean;
    certificationBodies: string[];
  };

  // Relations
  @ManyToOne(() => User)
  @JoinColumn({ name: 'user_id' })
  user: User;
}