#include "obsw.h"

#include <filesystem>
#include <fstream>
#include <iostream>

#include "OBSWConfig.h"
#include "commonConfig.h"
#include "core/scheduling.h"
#include "fsfw/tasks/TaskFactory.h"
#include "fsfw/version.h"
#include "q7sConfig.h"
#include "watchdog/definitions.h"

static int OBSW_ALREADY_RUNNING = -2;
#if OBSW_Q7S_EM == 0
static const char* DEV_STRING = "Xiphos Q7S FM";
#else
static const char* DEV_STRING = "Xiphos Q7S EM";
#endif
int obsw::obsw() {
  using namespace fsfw;
  std::cout << "-- EIVE OBSW --" << std::endl;
  std::cout << "-- Compiled for Linux (" << DEV_STRING << ") --" << std::endl;
  std::cout << "-- OBSW v" << common::OBSW_VERSION << " | FSFW v" << fsfw::FSFW_VERSION << " --"
            << std::endl;
  std::cout << "-- " << __DATE__ << " " << __TIME__ << " --" << std::endl;

#if Q7S_CHECK_FOR_ALREADY_RUNNING_IMG == 1
  // Check special file here. This file is created or deleted by the eive-watchdog application
  // or systemd service!
  if (std::filesystem::exists(watchdog::RUNNING_FILE_NAME)) {
    sif::warning << "File " << watchdog::RUNNING_FILE_NAME
                 << " exists so the software might "
                    "already be running. Check if obsw systemd service has been stopped."
                 << std::endl;
    return OBSW_ALREADY_RUNNING;
  }
#endif

  // Init delay handling.
  if (std::filesystem::exists("$HOME/boot_delay_secs.txt")) {
    std::ifstream ifile("$HOME/boot_delay_secs.txt");
    std::string lineStr;
    unsigned int bootDelaySecs = 0;
    unsigned int line = 0;
    // Try to reas delay seconds from file.
    while (std::getline(ifile, lineStr)) {
      std::istringstream iss(lineStr);
      if (!(iss >> bootDelaySecs)) {
        break;
      }
      line++;
    }
    if (line == 0) {
      // If the file is empty, assume default of 6 seconds
      bootDelaySecs = 6;
    }
    std::cout << "Delaying OBSW start for " << bootDelaySecs << " seconds" << std::endl;
    TaskFactory::delayTask(bootDelaySecs);
  }

  scheduling::initMission();

  for (;;) {
    /* Suspend main thread by sleeping it. */
    TaskFactory::delayTask(5000);
  }
  return 0;
}