export interface VesselData {
  imo: string;
  vesselName: string;
  type: string;
  length: number;
  width: number;
  estimatedEnginePower: number;
}

export interface CarbonCalculation {
  yearlyEmissions: number;
  offsetCost: number;
  recommendedProjects: Array<{
    id: string;
    name: string;
    description: string;
    costPerTon: number;
  }>;
}

export interface CarbonEstimate {
  fuelConsumption: number; // liters per year
  co2Emissions: number; // tons per year
}

export interface TripEstimate {
  distance: number; // nautical miles
  duration: number; // hours
  fuelConsumption: number; // liters
  co2Emissions: number; // tons
}

export interface Currency {
  code: string;
  symbol: string;
  rate: number; // Exchange rate relative to USD
}

export type CurrencyCode = 'USD' | 'EUR' | 'GBP' | 'CHF';

export interface Portfolio {
  id: number;
  name: string;
  description: string;
  projects: OffsetProject[];
  pricePerTon: number;
  currency: CurrencyCode;
}

export interface OffsetProject {
  id: string;
  name: string;
  description: string;
  shortDescription: string;
  imageUrl: string;
  pricePerTon: number;
  location: string;
  type: string;
  verificationStandard: string;
  impactMetrics: {
    co2Reduced: number;
    treesPlanted?: number;
    livelihoodsImproved?: number;
  };
}

export interface OffsetOrder {
  id: string;
  amountCharged: number; // Amount in cents
  currency: CurrencyCode;
  tons: number;
  portfolio: Portfolio;
  status: 'pending' | 'completed' | 'failed';
  createdAt: string;
  dryRun: boolean;
}

export type CalculatorType = 'trip' | 'annual';