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 type CertificationStatus =
  | 'standard 2020'
  | 'standard 2023'
  | 'nonstandard'
  | 'in progress';

export interface OffsetProject {
  id: string;
  name: string;
  description: string;
  shortDescription: string;
  imageUrl: string;
  pricePerTon: number;
  percentage?: number;  // Project's contribution to portfolio
  certificationStatus?: CertificationStatus;  // Wren certification standard
  location: string;
  type: string;
  verificationStandard: string;
  impactMetrics: {
    co2Reduced: number;
    treesPlanted?: number;
    livelihoodsImproved?: number;
  };
}

export type OffsetOrderSource =
  | 'subscription'
  | 'flight'
  | 'gift'
  | 'custom-duration'
  | 'one-off'
  | 'referral-bonus'
  | 'annual-incentive'
  | 'public-api'
  | 'special-offer';

export interface OffsetOrder {
  id: string;
  amountCharged: number; // Amount in cents (amount_paid_by_customer from API)
  currency: CurrencyCode;
  tons: number;
  portfolio: Portfolio;
  status: 'pending' | 'completed' | 'failed';
  createdAt: string;
  dryRun: boolean;
  source?: OffsetOrderSource;  // Source of the payment
  note?: string;  // Optional note attached to the order
}

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

// Stripe Checkout Types
export interface CheckoutSession {
  sessionId: string;
  url: string;
  orderId: string;
}

export interface StoredOrder {
  id: string;
  stripeSessionId: string;
  stripePaymentIntent: string | null;
  wrenOrderId: string | null;
  customerEmail: string | null;
  tons: number;
  portfolioId: number;
  baseAmount: number; // in cents
  processingFee: number; // in cents
  totalAmount: number; // in cents
  currency: CurrencyCode;
  status: 'pending' | 'paid' | 'fulfilled' | 'failed';
  createdAt: string;
  updatedAt: string;
}

export interface OrderDetailsResponse {
  order: {
    id: string;
    tons: number;
    portfolioId: number;
    baseAmount: number;
    processingFee: number;
    totalAmount: number;
    currency: string;
    status: string;
    wrenOrderId: string | null;
    createdAt: string;
  };
  session: {
    paymentStatus: string;
    customerEmail?: string;
  };
}