<?php
/**
 * Database Data Operations Test
 *
 * Tests database INSERT, SELECT, and UPDATE operations performance.
 *
 * @package     DiveWP
 * @author      Oleg Petrov
 * @version     1.0.4
 * @license     GPL-2.0-or-later
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    die(esc_html__('Direct access not permitted.', 'divewp-boost-site-performance'));
}

/**
 * Data Operations Test Implementation
 */
class DiveWP_Data_Operations_Test {

    /**
     * Run data operations test
     *
     * Tests:
     * 1. Data Creation (INSERT) - Adding new products and orders: 500 records × 5 iterations
     * 2. Data Retrieval (SELECT) - Product searches and listings: 2,500 queries × 5 iterations
     * 3. Data Updates (UPDATE) - Stock changes and modifications: 10 updates × 5 iterations
     *
     * @param array $config Test configuration
     * @return array Test results
     */
    public static function run($config = array()) {
        $defaults = array(
            'insert_records' => 500,
            'insert_iterations' => 5,
            'select_queries' => 2500,
            'select_iterations' => 5,
            'update_operations' => 10,
            'update_iterations' => 5
        );
        $config = array_merge($defaults, $config);

        $results = array();

        // Run INSERT test
        $results['insert'] = self::run_insert_test($config);

        // Run SELECT test
        $results['select'] = self::run_select_test($config);

        // Run UPDATE test
        $results['update'] = self::run_update_test($config);

        return array(
            'test_name' => 'Data Operations',
            'sub_tests' => $results,
            'status' => 'completed',
            'message' => 'All data operations tests completed successfully'
        );
    }

    /**
     * Run INSERT operations test
     *
     * @param array $config Test configuration
     * @return array Test results
     */
    private static function run_insert_test($config) {
        $start_time = microtime(true);
        $results = array();

        // TODO: Implement actual INSERT operations
        for ($i = 0; $i < $config['insert_iterations']; $i++) {
            $iteration_start = microtime(true);
            
            // Simulate INSERT operations
            for ($j = 0; $j < $config['insert_records']; $j++) {
                // INSERT simulation will go here
                $sample_data = array(
                    'product_name' => 'Product ' . $j,
                    'price' => 100.00 + ($j * 0.5),
                    'stock' => 50 + $j,
                    'created_at' => current_time('mysql')
                );
            }
            
            $iteration_time = microtime(true) - $iteration_start;
            $results[] = $iteration_time;
        }

        $total_time = microtime(true) - $start_time;
        $average_time = array_sum($results) / count($results);

        return array(
            'operation' => 'INSERT',
            'purpose' => 'Adding new products and orders',
            'total_time' => $total_time,
            'average_iteration_time' => $average_time,
            'iterations' => $config['insert_iterations'],
            'records_per_iteration' => $config['insert_records'],
            'total_records' => $config['insert_iterations'] * $config['insert_records']
        );
    }

    /**
     * Run SELECT operations test
     *
     * @param array $config Test configuration
     * @return array Test results
     */
    private static function run_select_test($config) {
        $start_time = microtime(true);
        $results = array();

        // TODO: Implement actual SELECT operations
        for ($i = 0; $i < $config['select_iterations']; $i++) {
            $iteration_start = microtime(true);
            
            // Simulate SELECT operations
            for ($j = 0; $j < $config['select_queries']; $j++) {
                // SELECT simulation will go here
                $query_conditions = array(
                    'price_min' => 50.00,
                    'price_max' => 200.00,
                    'stock_min' => 10,
                    'category' => 'electronics'
                );
            }
            
            $iteration_time = microtime(true) - $iteration_start;
            $results[] = $iteration_time;
        }

        $total_time = microtime(true) - $start_time;
        $average_time = array_sum($results) / count($results);

        return array(
            'operation' => 'SELECT',
            'purpose' => 'Product searches and listings',
            'total_time' => $total_time,
            'average_iteration_time' => $average_time,
            'iterations' => $config['select_iterations'],
            'queries_per_iteration' => $config['select_queries'],
            'total_queries' => $config['select_iterations'] * $config['select_queries']
        );
    }

    /**
     * Run UPDATE operations test
     *
     * @param array $config Test configuration
     * @return array Test results
     */
    private static function run_update_test($config) {
        $start_time = microtime(true);
        $results = array();

        // TODO: Implement actual UPDATE operations
        for ($i = 0; $i < $config['update_iterations']; $i++) {
            $iteration_start = microtime(true);
            
            // Simulate UPDATE operations
            for ($j = 0; $j < $config['update_operations']; $j++) {
                // UPDATE simulation will go here
                $update_data = array(
                    'stock' => 100 - $j,
                    'price' => 150.00 + ($j * 2),
                    'updated_at' => current_time('mysql')
                );
            }
            
            $iteration_time = microtime(true) - $iteration_start;
            $results[] = $iteration_time;
        }

        $total_time = microtime(true) - $start_time;
        $average_time = array_sum($results) / count($results);

        return array(
            'operation' => 'UPDATE',
            'purpose' => 'Stock changes and modifications',
            'total_time' => $total_time,
            'average_iteration_time' => $average_time,
            'iterations' => $config['update_iterations'],
            'operations_per_iteration' => $config['update_operations'],
            'total_operations' => $config['update_iterations'] * $config['update_operations']
        );
    }
} 