// Vayne API integration
// Docs: https://www.vayne.io (OpenAPI spec available at /api endpoint)
// Auth: Authorization: Bearer <api_token>
// Base URL: https://www.vayne.io
//
// Flow:
//   1. POST /api/orders with { url, limit, name, email_enrichment: false, export_format: "simple" }
//   2. Poll GET /api/orders/{id} until scraping_status === "finished" | "failed"
//   3. POST /api/orders/{id}/export with { export_format: "simple" }
//   4. Poll GET /api/orders/{id} until exports[0].status === "completed"
//   5. Download CSV from exports[0].file_url (S3 presigned URL)

import axios from "axios";
import Papa from "papaparse";

const BASE_URL = "https://www.vayne.io";

export interface VayneOrder {
  id: number;
  name: string;
  order_type: string;
  scraping_status: "initialization" | "pending" | "segmenting" | "scraping" | "finished" | "failed";
  limit: number;
  scraped: number;
  created_at: string;
  exports?: Array<{ status: "completed" | "pending" | "not_started"; file_url?: string }>;
}

export interface LeadProfile {
  firstName: string;
  lastName: string;
  fullName: string;
  title: string;
  company: string;
  companyDomain: string;
  linkedinUrl: string;
  location: string;
}

export async function createOrder(
  salesNavUrl: string,
  maxResults: number,
  apiToken: string,
  orderName?: string
): Promise<VayneOrder> {
  const response = await axios.post(
    `${BASE_URL}/api/orders`,
    {
      url: salesNavUrl,
      limit: maxResults,
      name: orderName || `OnyvaLeads-${Date.now()}`,
      email_enrichment: false,
      export_format: "simple",
    },
    {
      headers: {
        Authorization: `Bearer ${apiToken}`,
        "Content-Type": "application/json",
      },
      timeout: 30000,
    }
  );
  return response.data.order;
}

export async function getOrderStatus(
  orderId: number,
  apiToken: string
): Promise<VayneOrder> {
  const response = await axios.get(`${BASE_URL}/api/orders/${orderId}`, {
    headers: { Authorization: `Bearer ${apiToken}` },
    timeout: 15000,
  });
  return response.data.order;
}

export async function triggerExport(
  orderId: number,
  apiToken: string
): Promise<VayneOrder> {
  const response = await axios.post(
    `${BASE_URL}/api/orders/${orderId}/export`,
    { export_format: "simple" },
    {
      headers: {
        Authorization: `Bearer ${apiToken}`,
        "Content-Type": "application/json",
      },
      timeout: 15000,
    }
  );
  return response.data.order;
}

export async function downloadOrderCSV(
  fileUrl: string
): Promise<LeadProfile[]> {
  const response = await axios.get(fileUrl, {
    timeout: 60000,
    responseType: "text",
  });
  return parseVayneCSV(response.data);
}

function parseVayneCSV(csvContent: string): LeadProfile[] {
  const { data } = Papa.parse<Record<string, string>>(csvContent, {
    header: true,
    skipEmptyLines: true,
  });

  return data.map((row) => {
    // Vayne simple format columns (may vary; handle common variants)
    const fullName = row["Name"] || row["Full Name"] || row["full_name"] || "";
    const nameParts = fullName.trim().split(/\s+/);
    const firstName = nameParts[0] || "";
    const lastName = nameParts.slice(1).join(" ") || "";

    // Extract domain from company URL or website column
    const companyUrl = row["Company URL"] || row["company_url"] || row["Website"] || "";
    let companyDomain = "";
    if (companyUrl) {
      try {
        const u = new URL(companyUrl.startsWith("http") ? companyUrl : `https://${companyUrl}`);
        companyDomain = u.hostname.replace(/^www\./i, "");
      } catch {
        companyDomain = companyUrl.replace(/^www\./i, "").split("/")[0];
      }
    }

    return {
      firstName,
      lastName,
      fullName,
      title: row["Job Title"] || row["Title"] || row["title"] || "",
      company: row["Company"] || row["Company Name"] || row["company"] || "",
      companyDomain,
      linkedinUrl: row["LinkedIn URL"] || row["linkedin_url"] || row["Profile URL"] || "",
      location: row["Location"] || row["location"] || "",
    };
  });
}

export async function checkLinkedInAuth(apiToken: string): Promise<boolean> {
  try {
    const response = await axios.get(`${BASE_URL}/api/linkedin/status`, {
      headers: { Authorization: `Bearer ${apiToken}` },
      timeout: 10000,
    });
    return response.data?.connected === true;
  } catch {
    return false;
  }
}