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';

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

// Handler for GET requests (get logs)
export async function GET(request: NextRequest) {
  const logger = getLogger();
  return NextResponse.json({ logs: logger.getLogs() });
}

// Handler for POST requests (set API key)
export async function POST(request: NextRequest) {
  const logger = getLogger();
  const startTime = Date.now();
  
  try {
    const body = await request.json();
    const { apiKey } = body;
    
    if (!apiKey) {
      logger.log({
        timestamp: new Date().toISOString(),
        method: 'POST',
        endpoint: '/api/vultr',
        statusCode: 400,
        responseTime: Date.now() - startTime,
        error: 'API key is required'
      });
      
      return NextResponse.json(
        { error: 'API key is required' },
        { status: 400 }
      );
    }
    
    // Validate API key by making a test request to Vultr API
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: `${VULTR_API_BASE_URL}/account`,
      apiKey
    });
    
    const response = await fetch(`${VULTR_API_BASE_URL}/account`, {
      headers: {
        'Authorization': `Bearer ${apiKey}`,
        'Content-Type': 'application/json',
      },
    });
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'GET',
      endpoint: `${VULTR_API_BASE_URL}/account`,
      statusCode: response.status,
      responseTime: Date.now() - startTime,
      apiKey
    });
    
    if (!response.ok) {
      return NextResponse.json(
        { error: 'Invalid API key' },
        { status: 401 }
      );
    }
    
    // Set API key in cookie (HTTP only for security)
    const cookieStore = cookies();
    cookieStore.set(API_KEY_COOKIE, apiKey, {
      httpOnly: true,
      secure: process.env.NODE_ENV === 'production',
      sameSite: 'strict',
      path: '/',
      // Expire in 7 days
      maxAge: 60 * 60 * 24 * 7,
    });
    
    return NextResponse.json({ success: true });
  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : 'Unknown error';
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'POST',
      endpoint: '/api/vultr',
      statusCode: 500,
      responseTime: Date.now() - startTime,
      error: errorMessage
    });
    
    console.error('Error setting API key:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}

// Handler for DELETE requests (clear API key)
export async function DELETE(request: NextRequest) {
  const logger = getLogger();
  const startTime = Date.now();
  
  try {
    // Clear API key cookie
    const cookieStore = cookies();
    cookieStore.delete(API_KEY_COOKIE);
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'DELETE',
      endpoint: '/api/vultr',
      statusCode: 200,
      responseTime: Date.now() - startTime
    });
    
    return NextResponse.json({ success: true });
  } catch (error) {
    const errorMessage = error instanceof Error ? error.message : 'Unknown error';
    
    logger.log({
      timestamp: new Date().toISOString(),
      method: 'DELETE',
      endpoint: '/api/vultr',
      statusCode: 500,
      responseTime: Date.now() - startTime,
      error: errorMessage
    });
    
    console.error('Error clearing API key:', error);
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    );
  }
}