#include "LogOutput.h"
#include <spdlog/sinks/stdout_sinks.h>
#include <spdlog/sinks/basic_file_sink.h>
#include <spdlog/sinks/null_sink.h>
#include <fstream>
#include <json.hpp>

// console 0
// file 1
// console and file 2
// null 3

// trace 0
// debug 1
// info 2
// warn 3
// err 4
// critical 5
// off 6
// n_levels 7

LogOutput::LogOutput(std::string instance, LogConfiguration LogConfig)
{
    InitLog(instance, LogConfig);
}

LogOutput::LogOutput()
{
}

LogOutput::~LogOutput()
{
}

bool LogOutput::E_File(bool isOpen, std::string FileName)
{
    if (!isOpen)
    {
        log_sink->error(util::Format("{0} file not found", FileName));
    }
    return isOpen;
}

bool LogOutput::W_File(bool isOpen, std::string FileName)
{
    if (!isOpen)
    {
        log_sink->warn(util::Format("{0} file not found", FileName));
    }
    return isOpen;
}

void LogOutput::InitLog(std::string instance, LogConfiguration LogConfig)
{
    auto console_sink = std::make_shared<spdlog::sinks::stdout_sink_st>();
    auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_st>(LogConfig.fileOut_v, false);
    auto null_sink = std::make_shared<spdlog::sinks::null_sink_st>();

    console_sink->set_level(spdlog::level::level_enum(LogConfig.level_v));
    file_sink->set_level(spdlog::level::level_enum(LogConfig.level_v));

    console_sink->set_pattern(LogConfig.pattern_v);
    file_sink->set_pattern(LogConfig.pattern_v);

    switch (LogConfig.sink_v)
    {
    case 0:
        log_sink = new spdlog::logger(instance, {console_sink});
        break;
    case 1:
        log_sink = new spdlog::logger(instance, {file_sink});
        break;
    case 2:
        log_sink = new spdlog::logger(instance, {file_sink, console_sink});
        break;
    case 3:
        log_sink = new spdlog::logger(instance, {null_sink});
        break;
    }

    log_sink->flush_on(spdlog::level::info);
}

bool LogConfiguration::FromFile(std::string file_path)
{
    std::ifstream logConfig(file_path);

    if (logConfig.is_open())
    {
        nlohmann::json logJson;
        logConfig >> logJson;
        if (logJson.contains("sink"))
        {
            sink_v = logJson["sink"];
        }
        if (logJson.contains("fileOut"))
        {

            fileOut_v = logJson["fileOut"];
        }
        if (logJson.contains("level"))
        {
            level_v = logJson["level"];
        }
        if (logJson.contains("pattern"))
        {
            pattern_v = logJson["pattern"];
        }

        logConfig.close();
        return true;
    }
    else
    {
        return false;
    }
}