$data = json_decode(file_get_contents("php://input"), true);

$stmt = $conn->prepare("
  INSERT INTO bot_executions
  (bot_id, number_id, chat_id, input_tokens, output_tokens, total_tokens, cost, model)
  VALUES (?, ?, ?, ?, ?, ?, ?, ?)
");

$stmt->execute([
  $data['bot_id'],
  $data['number_id'],
  $data['chat_id'],
  $data['input_tokens'],
  $data['output_tokens'],
  $data['input_tokens'] + $data['output_tokens'],
  $data['cost'],
  $data['model']
]);