<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;

class GetGoogleAdsRefreshToken extends Command
{
    protected $signature = 'google-ads:get-refresh-token';
    protected $description = 'Generate a Google Ads API refresh token';

    public function handle()
    {
        $client_id = $this->ask('Enter your Google OAuth Client ID');
        $client_secret = $this->ask('Enter your Google OAuth Client Secret');
        $redirect_uri = $this->ask('Enter your Redirect URI (e.g., http://localhost/oauth2callback)');

        $authUrl = 'https://accounts.google.com/o/oauth2/v2/auth?' . http_build_query([
            'scope' => 'https://www.googleapis.com/auth/adwords',
            'access_type' => 'offline',
            'include_granted_scopes' => 'true',
            'response_type' => 'code',
            'client_id' => $client_id,
            'redirect_uri' => $redirect_uri
        ]);

        $this->info("Open this URL in your browser:");
        $this->line($authUrl);
        $this->info("After approving access, you will be redirected to your redirect URI with a 'code' parameter.");
        
        $code = $this->ask('Enter the code from the URL');

        // Exchange code for refresh token
        $response = $this->postToken($client_id, $client_secret, $redirect_uri, $code);
        
        if(isset($response['refresh_token'])) {
            $this->info("Success! Your refresh token is:");
            $this->line($response['refresh_token']);
        } else {
            $this->error('Failed to get refresh token.');
            $this->line(json_encode($response, JSON_PRETTY_PRINT));
        }

        return 0;
    }

    protected function postToken($client_id, $client_secret, $redirect_uri, $code)
    {
        $ch = curl_init('https://oauth2.googleapis.com/token');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
            'code' => $code,
            'client_id' => $client_id,
            'client_secret' => $client_secret,
            'redirect_uri' => $redirect_uri,
            'grant_type' => 'authorization_code'
        ]));

        $response = curl_exec($ch);
        curl_close($ch);

        return json_decode($response, true);
    }
}