import { NextRequest, NextResponse } from 'next/server';
import { cookies } from 'next/headers';
import { getLogger } from '@/lib/logger';

// Base URL for Vultr API
const VULTR_API_BASE_URL = 'https://api.vultr.com/v2';

// Cookie name for storing the API key
const API_KEY_COOKIE = 'vultr_api_key';

// Helper function to get API key from cookies
function getApiKey(): string | null {
  const cookieStore = cookies();
  return cookieStore.get(API_KEY_COOKIE)?.value || null;
}

// Set export const dynamic to force dynamic rendering
export const dynamic = 'force-dynamic';

// Handler for GET requests (list domains)
export async function GET(request: NextRequest) {
  const logger = getLogger();
  const startTime = Date.now();
  
  // Check if user is authenticated
  const apiKey = getApiKey();
  if (!apiKey) {
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: '/api/vultr/domains',
      statusCode: 401,
      responseTime: Date.now() - startTime,
      error: 'Authentication required'
    });
    
    return NextResponse.json(
      { error: 'Authentication required' },
      { status: 401 }
    );
  }
  
  try {
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: `${VULTR_API_BASE_URL}/domains`,
      apiKey
    });
    
    const response = await fetch(`${VULTR_API_BASE_URL}/domains`, {
      headers: {
        'Authorization': `Bearer ${apiKey}`,
        'Content-Type': 'application/json',
      },
    });

    const data = await response.json();
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: `${VULTR_API_BASE_URL}/domains`,
      statusCode: response.status,
      responseTime: Date.now() - startTime,
      apiKey
    });

    if (!response.ok) {
      return NextResponse.json(
        { error: data.error || 'Failed to fetch domains' },
        { status: response.status }
      );
    }

    return NextResponse.json({ domains: data.domains });
  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : 'Unknown error';
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: '/api/vultr/domains',
      statusCode: 500,
      responseTime: Date.now() - startTime,
      error: errorMessage,
      apiKey
    });
    
    console.error('Error fetching domains:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}

// Handler for POST requests (create domain)
export async function POST(request: NextRequest) {
  const logger = getLogger();
  const startTime = Date.now();
  
  // Check if user is authenticated
  const apiKey = getApiKey();
  if (!apiKey) {
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'POST',
      endpoint: '/api/vultr/domains',
      statusCode: 401,
      responseTime: Date.now() - startTime,
      error: 'Authentication required'
    });
    
    return NextResponse.json(
      { error: 'Authentication required' },
      { status: 401 }
    );
  }
  
  try {
    // Parse request body
    const body = await request.json();
    
    // Validate required fields
    if (!body.domain || !body.serverip) {
      logger.log({
        timestamp: new Date().toISOString(),
        method: 'POST',
        endpoint: '/api/vultr/domains',
        statusCode: 400,
        responseTime: Date.now() - startTime,
        error: 'Missing required fields',
        apiKey
      });
      
      return NextResponse.json(
        { error: 'Domain name and server IP are required' },
        { status: 400 }
      );
    }
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'POST',
      endpoint: `${VULTR_API_BASE_URL}/domains`,
      apiKey,
      requestBody: { domain: body.domain, serverip: body.serverip }
    });
    
    // Make request to Vultr API
    const response = await fetch(`${VULTR_API_BASE_URL}/domains`, {
      method: 'POST',
      headers: {
        'Authorization': `Bearer ${apiKey}`,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        domain: body.domain,
        serverip: body.serverip,
      }),
    });

    const data = await response.json();
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'POST',
      endpoint: `${VULTR_API_BASE_URL}/domains`,
      statusCode: response.status,
      responseTime: Date.now() - startTime,
      apiKey
    });

    if (!response.ok) {
      return NextResponse.json(
        { error: data.error || 'Failed to create domain' },
        { status: response.status }
      );
    }

    // Return the newly created domain
    return NextResponse.json({ 
      domain: {
        domain: body.domain,
        date_created: new Date().toISOString()
      }
    });
  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : 'Unknown error';
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'POST',
      endpoint: '/api/vultr/domains',
      statusCode: 500,
      responseTime: Date.now() - startTime,
      error: errorMessage,
      apiKey
    });
    
    console.error('Error creating domain:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}