/*
 * 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 "UpgradeTool.h"
#include "ILog.h"
#include "LinuxApi.h"
#include "UpgradeBase.h"
#include <cstring>
#include <iostream>
#include <sstream>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include <time.h>
#include <vector>
std::shared_ptr<UpgradeTool> &UpgradeTool::GetInstance(std::shared_ptr<UpgradeTool> *impl)
{
    static auto instance = std::make_shared<UpgradeTool>();
    if (impl) {
        if (instance.use_count() == 1) {
            LogInfo("Instance changed succeed.\n");
            instance = *impl;
        }
        else {
            LogError("Can't changing the instance becase of using by some one.\n");
        }
    }
    return instance;
}
bool UpgradeTool::StringToVersionBytes(const std::string &versionString, unsigned char result[4])
{
    std::stringstream ss(versionString);
    std::string segment;
    int index = 0;

    while (std::getline(ss, segment, '.') && index < 4) {
        unsigned int value = 0;
        std::stringstream segmentStream(segment);
        segmentStream >> std::dec >> value;

        if (value > 255) {
            return false;
        }

        result[index++] = static_cast<unsigned char>(value);
        printf("================ version[%d]: %02x\n", index, result[index - 1]);
    }

    if (index != 4) {
        return false;
    }

    return true;
}
void UpgradeTool::FillInTime(unsigned char packTime[6])
{
    time_t rawtime;
    struct tm *timeinfo;

    time(&rawtime);
    timeinfo = localtime(&rawtime);
    packTime[0] = timeinfo->tm_year;
    packTime[1] = timeinfo->tm_mon + 1; // 月份（1-12）
    packTime[2] = timeinfo->tm_mday;    // 日期（1-31）
    packTime[3] = timeinfo->tm_hour;    // 小时（0-23）
    packTime[4] = timeinfo->tm_min;     // 分钟（0-59）
    packTime[5] = timeinfo->tm_sec;     // 秒（0-59）
}
void UpgradeTool::PackFile(const std::string &fileName, const std::string &outputFile, const std::string &version,
                           const std::string &product, const std::string &project, const std::string &upgradeType)
{
    UpgradeFileHeader header;
    memset(&header, 0, sizeof(UpgradeFileHeader));
    StringToVersionBytes(version, header.version);
    FillInTime(header.packTime);
    FILE *input_file = fopen(fileName.c_str(), "rb");
    if (!input_file) {
        perror("Error opening input file");
        return;
    }

    FILE *output_file = fopen(outputFile.c_str(), "wb");
    if (!output_file) {
        perror("Error opening output file");
        fclose(input_file);
        return;
    }
    fwrite(&header, sizeof(header), 1, output_file);
    char buffer[1024];
    size_t bytes_read;
    while ((bytes_read = fread(buffer, 1, sizeof(buffer), input_file)) > 0) {
        fwrite(buffer, 1, bytes_read, output_file);
    }
    fclose(input_file);
    fclose(output_file);
    fx_system("sync");
}