import { apiGet, apiPost } from './client';

export type PublicTicketCatalogItem = {
  _id: string;
  name: string;
  description?: string;
  keyPoints?: string[];
  basePriceMinor: number;
  currency: string;
  maxPerOrder?: number | null;
  requiresBillingState?: boolean;
};

export type TicketQuote = {
  ticketId: string;
  quantity: number;
  billingStateCode: string | null;
  baseMinor: number;
  taxMinor: number;
  totalMinor: number;
  platformFeeMinor?: number;
  ticketName?: string;
  eventName?: string;
  taxLines: { label: string; rateBps: number; amountMinor: number }[];
  currency: string;
};

export type PublicCheckoutOptions = {
  onlineAvailable: boolean;
  onlineGateways?: Array<{
    id: string;
    provider: string;
    label: string;
    isActive: boolean;
    isPrimary: boolean;
    testMode: boolean;
    ticketCheckoutSupported: boolean;
  }>;
  manualUpi: {
    manualQrMode: 'upload' | 'dynamic';
    eventName: string;
    upiQrImageUrl: string;
    upiId: string;
    payeeName: string;
    instructions: string;
    platformFeeInr: number;
  } | null;
};

export type CheckoutOrderResponse = {
  keyId: string;
  orderId: string;
  amount: number;
  currency: string;
  transactionId: string;
  checkoutSource: string;
};

export type TicketAttendeePayload = {
  firstName: string;
  lastName: string;
  email: string;
  phone?: string;
  organization?: string;
  designation?: string;
  displayName?: string;
  formData?: Record<string, unknown>;
};

export type PublicEventSummary = {
  name: string;
  subtitle?: string;
  startDate?: string;
  endDate?: string;
  location?: string;
  locationType?: string;
  image?: string;
};

export function loadRazorpayScript(): Promise<void> {
  if (typeof window === 'undefined') return Promise.reject(new Error('No window'));
  const w = window as unknown as { Razorpay?: unknown };
  if (w.Razorpay) return Promise.resolve();
  return new Promise((resolve, reject) => {
    const s = document.createElement('script');
    s.src = 'https://checkout.razorpay.com/v1/checkout.js';
    s.async = true;
    s.onload = () => resolve();
    s.onerror = () => reject(new Error('Failed to load Razorpay'));
    document.body.appendChild(s);
  });
}

export const publicEventTicketsApi = {
  getEventSummary(eventId: string): Promise<PublicEventSummary> {
    return apiGet<PublicEventSummary>(`/public/events/${eventId}/summary`);
  },

  listTickets(eventId: string): Promise<PublicTicketCatalogItem[]> {
    return apiGet<{ tickets: PublicTicketCatalogItem[] }>(`/public/events/${eventId}/tickets`).then(
      (data) => data.tickets ?? [],
    );
  },

  checkoutOptions(eventId: string): Promise<PublicCheckoutOptions> {
    return apiGet<PublicCheckoutOptions>(`/public/events/${eventId}/tickets/checkout-options`);
  },

  quote(eventId: string, payload: { ticketId: string; quantity: number; billingStateCode?: string }): Promise<TicketQuote> {
    return apiPost<TicketQuote>(`/public/events/${eventId}/tickets/quote`, payload);
  },

  manualQuote(
    eventId: string,
    payload: { ticketId: string; quantity: number; billingStateCode?: string },
  ): Promise<TicketQuote> {
    return apiPost<TicketQuote>(`/public/events/${eventId}/tickets/manual-quote`, payload);
  },

  checkout(
    eventId: string,
    payload: {
      ticketId: string;
      quantity: number;
      billingStateCode?: string;
      purchaserEmail: string;
      sourceFormId?: string;
      attendees: TicketAttendeePayload[];
      expectedTotalMinor: number;
      idempotencyKey?: string;
      orgGatewayId?: string;
    },
  ): Promise<CheckoutOrderResponse> {
    return apiPost<CheckoutOrderResponse>(`/public/events/${eventId}/tickets/checkout`, payload);
  },

  verifyPayment(
    eventId: string,
    payload: { orderId: string; paymentId: string; signature: string },
  ): Promise<{ verified: boolean }> {
    return apiPost<{ verified: boolean }>(`/public/events/${eventId}/payment/verify`, payload);
  },

  manualSubmit(
    eventId: string,
    payload: {
      ticketId: string;
      quantity: number;
      billingStateCode?: string;
      purchaserEmail: string;
      sourceFormId?: string;
      attendees: TicketAttendeePayload[];
      expectedTotalMinor: number;
      screenshotDataUrl: string;
      buyerNote?: string;
    },
  ): Promise<{ orderId: string; message: string }> {
    return apiPost<{ orderId: string; message: string }>(
      `/public/events/${eventId}/tickets/manual-submit`,
      payload,
    );
  },
};