Maingron/MainOS

var objects = {
      content: document.getElementsByClassName("content")[0],
      cmdinput: document.getElementsByClassName("cmdinput")[0],
      cmdoutput: document.getElementsByClassName("cmdoutput")[0]
};
var cls = 0;

window.addEventListener("keydown", function (e) {
    if (e.keyCode == 13) { // Enter
        cmdsubmit();
        updateTerminal();
    }
});

objects.cmdinput.focus();

const historyFile = pWindow.getPath("temp") + "cmdhistory.dat";

// create temp folder in pWindow.getPath("data") if it doesn't exist
iofs.save(pWindow.getPath("temp"),"","t=dir",0);

// create cmdhistory.dat if it doesn't exist
if (!iofs.exists(historyFile)) {
  iofs.save(historyFile, "", "t=txt", 1);
}



function updateTerminal() {
    objects.cmdoutput.innerHTML = iofs.load(historyFile);
    iofs.save(historyFile, "", "t=txt", 1);

    window.scrollTo(0, document.body.scrollHeight);

    objects.cmdinput.value = "";
    objects.cmdinput.focus();
    objects.cmdinput.select();

}

function cmdsubmit() {
  var response = runcmd("cmd:" + objects.cmdinput.value);

  if (response == "") {
    if (cls == 1) {
      iofs.save(historyFile, objects.cmdoutput.innerHTML + escapeHtml(objects.cmdinput.value), "t=txt", 1);
      cls = 0;
    } else {
      iofs.save(historyFile, objects.cmdoutput.innerHTML + "> " + escapeHtml(objects.cmdinput.value) + "<br>", "t=txt", 1);
    }

  } else {
    iofs.save(historyFile, objects.cmdoutput.innerHTML + "> " + escapeHtml(objects.cmdinput.value) + "<br>" + response + "<br>", "t=txt", 1);
  }

  objects.cmdoutput.innerHTML = iofs.load(historyFile);
}

function runcmd(which) {

  if (which.indexOf("md:") != 1) {
    return "error";
  }


  if (which.indexOf("echo") == 4) {
    return (which.split("cmd:echo")[1]);
  }

  if (which.indexOf("run") == 4) {
    window.parent.run(which.split("cmd:run ")[1]);
    return "";
  }

  if (which.indexOf("close") == 4) {
    // if pid is invalid return error
    if (!parent.pid[which.split("cmd:close ")[1]]) {
        return "Error: Invalid PID";
    }
    parent.unrun(parent.getWindowByMagic(which.split("cmd:close ")[1]));
    return "";
  }

  if (which.indexOf("pids") == 4) {
    var result = "";
    for (j = 0; parent.pid.length > j; j++) {
      if (parent.pid[j] && parent.pid[j].length > 0) {
        result = result + "<br>" + j + "=" + parent.pid[j];
      }
    }
    return result;
  }

  if (which.indexOf("mkdir") == 4) {
    if(iofs.exists(which.split("cmd:mkdir")[1])) {
      return "Error: Folder already exists";
    } else {
      iofs.save(which.split("cmd:mkdir")[1], "", "t=dir", 0);
      return "Created folder";
    }
  }


  if (which.indexOf("cls") == 4 || which.indexOf("clear") == 4) {
    cls = 1;
    objects.cmdoutput.innerHTML = "";
    objects.cmdinput.value = "";
    iofs.save(historyFile, "", "t=txt", 1);
    updateTerminal();
    return "";
  }

  if (which.indexOf("setting") == 4) {
    which = which.split("cmd:setting ")[1];
    which = which.toLowerCase();
    // if setting is a file
    if (iofs.exists(system.user.paths.userPath + "settings/" + which.split(" ")[0] + ".txt")) {
        // if doesnt define value, return value
        if (!which.split(" ")[1]) {
            return ("(Ancient variable, use settings menu) <br>" + which + ": " + iofs.load(system.user.paths.userPath + "settings/" + which.split(" ")[0] + ".txt"));
        } else {
            iofs.save(system.user.paths.userPath + "settings/" + which.split(" ")[0] + ".txt", which.split(" ")[1], "t=txt", 1);
            window.parent.loadsettings();
            return "'(Ancient variable, use settings menu) <br>' + changed setting - a reload may be required";
        }
    } else {
        return "'(Ancient variable, use settings menu) <br>' + Error: Setting not found";
    }

  }

  if (which.indexOf("restart") == 4) {
    window.parent.location.reload();
    cls = 1;
    objects.cmdoutput.innerHTML = "";
    objects.cmdinput.value = "";
    return "";
  }

  if (which.indexOf("version") == 4) {
    return(`${system.osDetails.name} Version: ${system.osDetails.version}`);
  }


  if (which.indexOf("help") == 4) {
    return /*html*/ `
    <b class='helpb' style='font-weight:inherit'><b>cls</b> clears console<br>
    <b>echo <a>[Message]</a></b> well, it's echo...<br>
    <b>run <b>[name of program]</b></b> opens a program<br>
    <b>close <b>[pid of program]</b></b> closes a program<br>
    <b>pids </b> lists currently running programs<br><b>exit</b> closes the terminal<br>
    <b>setting <b> [Name of setting] [value]</b></b> changes a setting | <b style="color:#f55">deprecated, use settings app</b><br>
    <b>restart</b> restarts ${system.osDetails.name}<br>
    <b>mkdir <a>[Path]</a></b> Create a directory<br>
    <b>version</b> Shows ${system.osDetails.name} Version<br>
    </b>
    <p style='display:block;line-height:18px'>&nbsp;</p>
    <b class='helpb'>devmode commands:<br><b>js <b>js</b></b> executes js<br>`;
  }


  if (which.indexOf("toggledownfall") == 4) {
    return "<b style='color:#f55; font-weight:inherit'>Command not found. Try /mc:help to get help.</b>";
  }


  if (which.indexOf("exit") == 4) {
    objects.cmdoutput.innerHTML = "";
    objects.cmdinput.value = "";
    iofs.save(historyFile, "", "t=txt", 1);
    pWindow.close();
  }

  if (which.indexOf("js ") == 4) {
    if (window.parent.setting.developer = 1) {
      iofs.save(historyFile, "", "t=txt", 1);
      if (which.indexOf("js ") == 4) {
        eval(which.split("cmd:js ")[1]);
        return "Ran JS Command";
      }
    } else {
      return "You have to activate the developer mode to enable js commands. Be careful though!";
    }
  }
  return "Command not defined";
}


function escapeHtml(which) {
  while (which.indexOf("<") > 4) {
    which = which.replace("<", "&lt;");
  }
  return (which);
}