using System;
using System.Text;
namespace n5coredll
{
    public class RequestResult {
        private static string STATUS = "STATUS";

        private string status;

        public string Status {
            get { return status; }
        }
        private void setStatus(string pStatus) {
            this.status = pStatus;
        }

        public RequestResult() {
        }

        public RequestResult(string pStatus) {
            this.setStatus(pStatus);
        }

        public static string toJsonForLinkTest() {
            return "{\"EVENT_NAME\":\"ECHO\"}";
        }

        public static string toJsonForSettlement()
        {
            return "{\"EVENT_NAME\":\"SETTLE\",\"PAYMENT_APP_ID\":\"EPS\"}";
        }

        public static string toJsonForReprint()
        {
            return "{\"EVENT_NAME\":\"PRINT\",\"IS_REPRINT\":true}";
        }

        public static string toJsonForReprint(string txnId, string traceNo, bool isReprint)
        {
            string reprintStr = "";
            if (isReprint)
                reprintStr = "true";
            else
                reprintStr = "false";

            string result = "";
            if (txnId!="" && traceNo!="")
                result = "{\"EVENT_NAME\":\"PRINT\",\"PAYMENT_APP_ID\":\"EPS\",\"TXN_ID\":\"" + txnId + "\",\"TRACE_NO\":\"" + traceNo + "\",\"IS_REPRINT\":" + reprintStr + "}";
            else if(txnId!="" && traceNo == "")
                result = "{\"EVENT_NAME\":\"PRINT\",\"PAYMENT_APP_ID\":\"EPS\",\"TXN_ID\":\"" + txnId + "\",\"IS_REPRINT\":" + reprintStr + "}";
            else if (traceNo != "" && txnId == "")
                result = "{\"EVENT_NAME\":\"PRINT\",\"PAYMENT_APP_ID\":\"EPS\",\"TRACE_NO\":\"" + traceNo + "\",\"IS_REPRINT\":" + reprintStr + "}";
            else 
                result = "{\"EVENT_NAME\":\"PRINT\",\"PAYMENT_APP_ID\":\"EPS\",\"IS_REPRINT\":" + reprintStr + "}";
            return result;
        }

        public static string toJsonForAbort()
        {
            return "{\"EVENT_NAME\":\"ABORT\"}";
        }

        public static string toJsonForScan()
        {
            return "{\"EVENT_NAME\":\"SCAN\"}";
        }

        public static string toJsonForReadCardNFC()
        {
            return "{\"EVENT_NAME\":\"READ_CARD\"}";
        }

        public static string toJsonForAddPoint(string inputTxnId, decimal txnAmt)
        {
            string cardSaleMsg = "{\"EVENT_NAME\":\"ADD_POINT\",\"TXN_ID\":\"" + inputTxnId + "\",\"TXN_AMT\":" + txnAmt + "}";
            return cardSaleMsg;
        }

        public static string toJsonForBatchEnquiry(string settleDate)
        {
            return "{\"EVENT_NAME\":\"BATCH_ENQUIRY\",\"SETTLE_DATE\":\"" + settleDate + "\"}";
        }

        public static string toJsonForSettleEnquiry(string batchId)
        {
            return "{\"EVENT_NAME\":\"SETTLE_ENQUIRY\",\"BATCH_ID\":\"" + batchId + "\"}";
        }

        public static string toJsonForSummaryEnquiry(string period)
        {
            return "{\"EVENT_NAME\":\"SUMMARY_ENQUIRY\",\"TXN_DATE_START_TO_END\":\"" + period + "\"}";
        }
        public static RequestResult toReqResultFromJsonMsg(string jsonMsg) {
            if (jsonMsg == null || !jsonMsg.StartsWith("{") || !jsonMsg.EndsWith("}")) {
                return null;
            }

            int jsonLength = jsonMsg.Length;
            jsonMsg = jsonMsg.Substring(0, jsonLength - 1);
            jsonMsg = jsonMsg.Substring(1, jsonLength - 2);
            string[] column = jsonMsg.Split(',');
            string[] valueColumn = null;
            string valueColumn0 = null;
            string valueColumn1 = null;
            RequestResult reqResult = new RequestResult();
            for (int i = 0; i < column.Length; i++) {
                valueColumn = column[i].Split(':');
                valueColumn0 = valueColumn[0].Replace('"', ' ').Trim();
                valueColumn1 = valueColumn[1].Replace('"', ' ').Trim();
                if (RequestResult.STATUS.Equals(valueColumn0)) {
                    reqResult.setStatus(valueColumn1);
                }
            }
            return reqResult;
        }

        public static String createRespErrJson(String eventName, String status)
        {
            if (status.Equals("102"))
                return "ECR Comm Error";
            if (status.Equals("103"))
                return "ECR timeout";
            if (status.Equals("104"))
                return "Comm Busy";
            else
                return "{\"EVENT_NAME\":\"" +eventName + "\",\"STATUS\":\"" + status + "\"}";
        }

    }
}