<?php

namespace think\log\driver;

use think\contract\LogHandlerInterface;
use think\facade\App;
use PDO;

class DebugMysql  implements LogHandlerInterface
{

  protected $enableLog = true;

  protected $config = [];

  protected $pdo = null;

  protected $tableName = '';

  public function __construct(App $app, $config = [])
  {
    if (is_array($config)) {
      $this->config = array_merge($this->config, $config);
    }

    $dsn = $this->parseDsn($config);

    $pdo = $this->createPdo($dsn, $config['username'], $config['password'], $config['params']);

    $this->pdo = $pdo;

    $this->tableName = $config['prefix'] . 'debug_log';
  }

  public function save(array $log): bool
  {


    $app_name = app('http')->getName() ?: '';

    $controller_name = request()->controller();
    $action_name = request()->action();

    if (App::runningInConsole()) {
      $app_name = 'cli';
    }

    $create_time = time();


    $create_time_title = date('Y-m-d H:i:s', $create_time);

    $log_key = uniqid();

    $columns = 'level,content,create_time,create_time_title,uid,app_name,controller_name,action_name';
    $placeholders = '?,?,?,?,?,?,?,?';
    $sql = "INSERT INTO {$this->tableName} ({$columns}) VALUES ({$placeholders})";
    $stmt = $this->pdo->prepare($sql);

    foreach ($log as $log_level => $log_list) {
      foreach ($log_list as $key => $log_item) {

        if (!is_string($log_item)) {
          $log_item = json_encode($log_item, JSON_UNESCAPED_UNICODE);
        }

        $stmt->execute([
          $log_level,
          $log_item,
          $create_time,
          $create_time_title,
          $log_key,
          $app_name,
          $controller_name,
          $action_name,
        ]);
      }
    }

    return true;
  }

  /**
   * 解析pdo连接的dsn信息
   * @access protected
   * @param  array $config 连接信息
   * @return string
   */
  protected function parseDsn(array $config): string
  {
    if (!empty($config['socket'])) {
      $dsn = 'mysql:unix_socket=' . $config['socket'];
    } elseif (!empty($config['hostport'])) {
      $dsn = 'mysql:host=' . $config['hostname'] . ';port=' . $config['hostport'];
    } else {
      $dsn = 'mysql:host=' . $config['hostname'];
    }
    $dsn .= ';dbname=' . $config['database'];

    if (!empty($config['charset'])) {
      $dsn .= ';charset=' . $config['charset'];
    }

    return $dsn;
  }

  protected function createPdo($dsn, $username, $password, $params)
  {
    return new PDO($dsn, $username, $password, $params);
  }

  public function __destruct()
  {
    $this->pdo = null;
  }
}