<?php

namespace App\Models;

use App\Config\Database;

class ApiKeyModel
{
    private $db;

    public function __construct()
    {
        $this->db = Database::getInstance();
    }

    /**
     * Validate API key
     */
    public function validateApiKey($clientId, $clientSecret)
    {
        $sql = "SELECT ak.*, au.username, au.nama_lengkap, au.email, au.timo_user 
                FROM api_keys ak 
                JOIN admin_users au ON au.id = ak.admin_user_id 
                WHERE ak.client_id = :client_id 
                AND ak.client_secret = :client_secret 
                AND ak.is_active = 1 
                LIMIT 1";
        
        $result = $this->db->fetchOne($sql, [
            'client_id' => $clientId,
            'client_secret' => $clientSecret
        ]);

        if ($result) {
            // Update last_used_at
            $this->updateLastUsed($result->id);
            
            // Log successful validation
            $this->logApiUsage($result->id, 'validation', 'success');
            return $result;
        }

        // Log failed validation
        $this->logApiUsage(null, 'validation', 'failed', ['client_id' => $clientId]);
        return false;
    }

    /**
     * Log API usage
     */
    public function logApiUsage($apiKeyId, $endpoint, $status, $data = [])
    {
        $ipAddress = $_SERVER['REMOTE_ADDR'] ?? '0.0.0.0';
        $userAgent = $_SERVER['HTTP_USER_AGENT'] ?? 'Unknown';

        $this->db->insert('api_logs', [
            'api_key_id' => $apiKeyId,
            'endpoint' => $endpoint,
            'status' => $status,
            'request_data' => json_encode($data),
            'ip_address' => $ipAddress,
            'user_agent' => $userAgent,
            'created_at' => date('Y-m-d H:i:s')
        ]);
    }

    /**
     * Get API key by ID
     */
    public function getById($id)
    {
        $sql = "SELECT * FROM api_keys WHERE id = :id LIMIT 1";
        return $this->db->fetchOne($sql, ['id' => $id]);
    }

    /**
     * Update last used timestamp
     */
    public function updateLastUsed($id)
    {
        try {
            $this->db->update('api_keys', [
                'last_used_at' => date('Y-m-d H:i:s')
            ], 'id = :id', ['id' => $id]);
        } catch (\Exception $e) {
            // Ignore error jika column belum ada
            error_log("Warning: Could not update last_used_at: " . $e->getMessage());
        }
    }
}