/**
 * Google Search Console API Client
 * Handles sitemap submission, URL inspection, and indexing requests
 */

interface GSCConfig {
  serviceAccountEmail?: string
  privateKey?: string
  siteUrl: string
}

interface SubmitSitemapResponse {
  success: boolean
  message?: string
  error?: string
}

interface InspectUrlResponse {
  success: boolean
  indexed?: boolean
  error?: string
}

/**
 * Submit sitemap to Google Search Console
 * Uses the Search Console API v1
 */
export async function submitSitemapToGSC(
  sitemapUrl: string,
  config: GSCConfig
): Promise<SubmitSitemapResponse> {
  const { serviceAccountEmail, privateKey, siteUrl } = config

  if (!serviceAccountEmail || !privateKey) {
    return {
      success: false,
      error: "Google Search Console credentials not configured",
    }
  }

  try {
    // For Next.js, we'll use the API route approach
    // The actual API call will be made server-side via the API route
    // This function is a helper that can be called from API routes

    const response = await fetch(
      `${process.env.NEXT_PUBLIC_APP_URL || ""}/api/sitemap-submit`,
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          sitemapUrl,
          siteUrl,
        }),
      }
    )

    if (!response.ok) {
      const error = await response.json()
      return {
        success: false,
        error: error.message || "Failed to submit sitemap",
      }
    }

    const data = await response.json()
    return {
      success: true,
      message: data.message || "Sitemap submitted successfully",
    }
  } catch (error) {
    return {
      success: false,
      error: error instanceof Error ? error.message : "Unknown error occurred",
    }
  }
}

/**
 * Request URL indexing in Google Search Console
 */
export async function requestIndexing(
  url: string,
  config: GSCConfig
): Promise<InspectUrlResponse> {
  const { serviceAccountEmail, privateKey } = config

  if (!serviceAccountEmail || !privateKey) {
    return {
      success: false,
      error: "Google Search Console credentials not configured",
    }
  }

  try {
    const response = await fetch(
      `${process.env.NEXT_PUBLIC_APP_URL || ""}/api/request-indexing`,
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          url,
        }),
      }
    )

    if (!response.ok) {
      const error = await response.json()
      return {
        success: false,
        error: error.message || "Failed to request indexing",
      }
    }

    const data = await response.json()
    return {
      success: true,
      indexed: data.indexed || false,
    }
  } catch (error) {
    return {
      success: false,
      error: error instanceof Error ? error.message : "Unknown error occurred",
    }
  }
}

/**
 * Get Google Search Console configuration from environment variables
 */
export function getGSCConfig(): GSCConfig {
  return {
    serviceAccountEmail: process.env.GOOGLE_SERVICE_ACCOUNT_EMAIL,
    privateKey: process.env.GOOGLE_PRIVATE_KEY?.replace(/\\n/g, "\n"),
    siteUrl:
      process.env.NEXT_PUBLIC_SITE_URL || "https://rockymountainvending.com",
  }
}