/***************************************************************************
* Copyright (c) 2020, QuantStack and xeus-SQLite contributors *
* *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
****************************************************************************/

#include <memory>
#include <iostream>

#include "xeus/xkernel.hpp"
#include "xeus/xkernel_configuration.hpp"

#include "xeus-sql/xeus_sql_interpreter.hpp"

std::string extract_filename(int& argc, char* argv[])
{
 std::string res = "";
 for (int i = 0; i < argc; ++i)
 {
 if ((std::string(argv[i]) == "-f") && (i + 1 < argc))
 {
 res = argv[i + 1];
 for (int j = i; j < argc - 2; ++j)
 {
 argv[j] = argv[j + 2];
 }
 argc -= 2;
 break;
 }
 }
 return res;
}

int main(int argc, char* argv[])
{
 // Load configuration file
 std::string file_name = extract_filename(argc, argv);

 // Create interpreter instance
 using interpreter_ptr = std::unique_ptr<xeus_sql::interpreter>;
 interpreter_ptr interpreter = std::make_unique<xeus_sql::interpreter>();

 // Create kernel instance and start it
 // xeus::xkernel kernel(config, xeus::get_user_name(), std::move(interpreter));
 // kernel.start();
 using history_manager_ptr = std::unique_ptr<xeus::xhistory_manager>;
 history_manager_ptr hist = xeus::make_in_memory_history_manager();

 if (!file_name.empty())
 {
 xeus::xconfiguration config = xeus::load_configuration(file_name);

 xeus::xkernel kernel(config,
 xeus::get_user_name(),
 std::move(interpreter),
 std::move(hist),
 xeus::make_console_logger(xeus::xlogger::msg_type,
 xeus::make_file_logger(xeus::xlogger::content, "xeus.log")),
 xeus::make_xserver_shell_main);

 std::clog <<
 "Starting xeus-sql kernel...\n\n"
 "If you want to connect to this kernel from an other client, you can use"
 " the " + file_name + " file."
 << std::endl;

 kernel.start();
 }
 else
 {
 xeus::xkernel kernel(xeus::get_user_name(),
 std::move(interpreter),
 std::move(hist),
 nullptr,
 xeus::make_xserver_shell_main);

 const auto& config = kernel.get_config();
 std::clog <<
 "Starting xeus-sql kernel...\n\n"
 "If you want to connect to this kernel from an other client, just copy"
 " and paste the following content inside of a `kernel.json` file. And then run for example:\n\n"
 "# jupyter console --existing kernel.json\n\n"
 "kernel.json\n```\n{\n"
 " \"transport\": \"" + config.m_transport + "\",\n"
 " \"ip\": \"" + config.m_ip + "\",\n"
 " \"control_port\": " + config.m_control_port + ",\n"
 " \"shell_port\": " + config.m_shell_port + ",\n"
 " \"stdin_port\": " + config.m_stdin_port + ",\n"
 " \"iopub_port\": " + config.m_iopub_port + ",\n"
 " \"hb_port\": " + config.m_hb_port + ",\n"
 " \"signature_scheme\": \"" + config.m_signature_scheme + "\",\n"
 " \"key\": \"" + config.m_key + "\"\n"
 "}\n```\n";

 kernel.start();
 }

 return 0;
}