/*
 * Copyright (c) 2023 Fancy Code.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include "SixFrameHandle.h"
#include "ILog.h"
#include <sstream>
#include <stdio.h>
using std::placeholders::_1;
using std::placeholders::_2;
using std::placeholders::_3;
// using std::placeholders::_4;
const char *APP_GET_PRODUCT_INFO = "/app/getproductinfo";
SixFrameHandle::SixFrameHandle()
{
    mResquesHandleFunc[APP_GET_PRODUCT_INFO] = std::bind(&SixFrameHandle::RequestGetProductInfo, this, _1, _2, _3);
    // mResquesHandleFunc["favicon.ico"] = std::bind(&SixFrameHandle::DoNothing, this, _1, _2, _3);
}
void SixFrameHandle::RequestHandle(const char *url, const unsigned int urlLength, ResponseHandle responseHandle,
                                   void *context)
{
    std::multimap<std::string, std::string> paramsMap;
    const std::string urlStr2 = url;
    LogInfo("URL = %s\n", urlStr2.c_str());
    size_t queryStartPos = urlStr2.find('?');
    std::string command = "";
    if (queryStartPos != std::string::npos && queryStartPos + 1 < urlStr2.length()) {
        command = urlStr2.substr(0, queryStartPos);
    }
    else {
        command = urlStr2.substr(0, urlStr2.length());
    }
    LogInfo("command = %s\n", command.c_str());
    ExtractParamsFromUrl(urlStr2, paramsMap);
    RequestHandle2(command, paramsMap, responseHandle, context);
}
void SixFrameHandle::ExtractParamsFromUrl(const std::string &url, std::multimap<std::string, std::string> &paramsMap)
{
    size_t queryStartPos = url.find('?');
    if (queryStartPos != std::string::npos && queryStartPos + 1 < url.length()) {
        std::string paramsStr = url.substr(queryStartPos + 1);

        std::istringstream iss(paramsStr);
        std::string token;
        while (getline(iss, token, '&')) {
            size_t equalSignPos = token.find('=');
            if (equalSignPos != std::string::npos) {
                std::string key = token.substr(0, equalSignPos);
                std::string value = token.substr(equalSignPos + 1);
                LogInfo("url get [%s] = %s\n", key.c_str(), value.c_str());
                paramsMap.insert({key, value});
            }
        }
    }
}
void SixFrameHandle::RequestHandle2(const std::string command, std::multimap<std::string, std::string> &paramsMap,
                                    ResponseHandle responseHandle, void *context)
{
    auto result = mResquesHandleFunc.find(command);
    if (result != mResquesHandleFunc.end()) {
        (*result).second(paramsMap, responseHandle, context);
    }
    else {
        LogError("Unknown command.\n");
        DoNothing(paramsMap, responseHandle, context);
    }
}
void SixFrameHandle::DoNothing(std::multimap<std::string, std::string> &paramsMap, ResponseHandle responseHandle,
                               void *context)
{
    //
    responseHandle("Unknown command.", context);
}
void SixFrameHandle::RequestGetProductInfo(std::multimap<std::string, std::string> &paramsMap,
                                           ResponseHandle responseHandle, void *context)
{
    LogInfo("RequestGetProductInfo.\n");
    char *resultStr = nullptr;
    cJSON *result = MakeResponseResult(ResposeResult::SUCCESSFUL);
    resultStr = cJSON_Print(result);
    responseHandle(resultStr, context);
    free(resultStr);
    cJSON_Delete(result);
}
cJSON *SixFrameHandle::MakeResponseResult(const ResposeResult result)
{
    const char *RESPONSE_RESULT = "result";
    cJSON *resultCJSON = cJSON_CreateObject();
    cJSON_AddNumberToObject(resultCJSON, RESPONSE_RESULT, static_cast<int>(result));
    return resultCJSON;
}