class Log implements JsonSerializable
{

    const LOG_TYPE = 'amazonpay_transaction_history';
    const RESPONSE_OK = 'OK';
    const ACTION_DEFERRED_AUTHORIZE = 'deferred-authorize';
    const ACTION_AUTHORIZE = 'authorize';
    const ACTION_ASYNC_AUTHORIZE = 'async-authorize';
    const ACTION_CAPTURE_PAYMENTS = 'capture';
    const ACTION_AUTHORIZE_AND_CAPTURE = 'authorize-and-capture';
    const ACTION_ASYNC_CAPTURE_PAYMENTS = 'async-capture';
    const ACTION_CANCEL_TRANS = 'cancel';
    const ACTION_ASYNC_REFUND = 'async-refund';
    const ACTION_REFUND = 'refund';

    /**
     * 取引ID
     *
     * @var string
     */
    private $chargePermissionId;

    /**
     * Current local timestamp
     *
     * @var string
     */
    private $timestamp;

    /**
     * 処理区分
     *
     * @var string
     */
    private $actionType;

    /**
     * Only set if an error occured.
     *
     * @var GenericError|null
     */
    private $error;

    /**
     * 処理結果
     *
     * @var string
     */
    private $responseCode;

    /**
     * Authorize, capture, or refund amount
     *
     * @var null|int
     */
    private $amount;

    /**
     * Creates a `Log` instance for passing to `Logger`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string            $chargePermissionId
     * @param string            $actionType
     * @param string            $responseCode
     * @param int               $amount
     * @param GenericError|null $error
     * @param string            $timestamp
     * @return void
     */
    public function __construct(
        $chargePermissionId,
        $actionType,
        $responseCode,
        $amount = null,
        $error = null,
        $timestamp = null
    ) {
        $this->chargePermissionId = $chargePermissionId;
        $this->actionType = $actionType;
        $this->responseCode = $responseCode;
        $this->amount = $amount;
        $this->error = $error;
        $this->timestamp = !empty($timestamp) ? $timestamp : current_time('mysql');
    }

    /**
     * Returns action type text translation for a given action key
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param string $key
     * @return string
     */
    public static function getActionTypeText($key) {
        $actionType = '';
        switch ($key) {
            case self::ACTION_DEFERRED_AUTHORIZE:
                $actionType = __('Back-order', 'wcexaap');
                break;
            case self::ACTION_AUTHORIZE: // 与信
                $actionType = __('Authorize Payment', 'wcexaap');
                break;
            case self::ACTION_ASYNC_AUTHORIZE: // 与信（非同期）
                $actionType = __('Async Authorize Payment', 'wcexaap');
                break;
            case self::ACTION_CAPTURE_PAYMENTS: // 売上計上
                $actionType = __('Capture', 'wcexaap');
                break;
            case self::ACTION_AUTHORIZE_AND_CAPTURE: // 与信売上計上
                $actionType = __('Authorize and Capture', 'wcexaap');
                break;
            case self::ACTION_ASYNC_CAPTURE_PAYMENTS: // 売上計上（非同期）
                $actionType = __('Async Capture Payment', 'wcexaap');
                break;
            case self::ACTION_CANCEL_TRANS: // 取消
                $actionType = __('Cancel', 'wcexaap');
                break;
            case self::ACTION_ASYNC_REFUND: // 返金（非同期）
                $actionType = __('Async Refund', 'wcexaap');
                break;
            case self::ACTION_REFUND: // 返金
                $actionType = __('Refund', 'wcexaap');
                break;
        }

        return $actionType;
    }

    /**
     * Object shape for `json_encode`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return array
     */
    public function jsonSerialize() {
        return [
            'chargePermissionId' => $this->chargePermissionId,
            'actionType' => $this->actionType,
            'responseCode' => $this->responseCode,
            'amount' => $this->amount,
            'error' => $this->error,
            'timestamp' => $this->timestamp,
        ];
    }

    /**
     * Overrides amount value
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @param int|string $amount
     * @return void
     */
    public function setAmount($amount) {
        $this->amount = $amount;
    }

    /**
     * Getter for `$chargePermissionId`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getChargePermissionId() {
        return $this->chargePermissionId;
    }

    /**
     * Getter for `$timestamp`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getTimestamp() {
        return $this->timestamp;
    }

    /**
     * Getter for `$actionType`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getActionType() {
        return $this->actionType;
    }

    /**
     * Getter for `$error`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return GenericError|null
     */
    public function getError() {
        return $this->error;
    }

    /**
     * Getter for `$responseCode`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return string
     */
    public function getResponseCode() {
        return $this->responseCode;
    }

    /**
     * Getter for `$amount`
     *
     * @author Evan D Shaw <evandanielshaw@gmail.com>
     * @return int|null
     */
    public function getAmount() {
        return $this->amount;
    }
}