// why build your own scripting lang if you can't make an IDE in it

plugin = java_static("net.orbis.OrbisPlugin", "getInstance");
dynUI = plugin.getDynamicUI;
dataDir = plugin.getDataDirectory;


function listScripts() {
  path = java_static("java.nio.file.Paths", "get", java_call(dataDir, "toString"), "scripts");
  stream = java_static("java.nio.file.Files", "list", path);
  return java_call(stream, "collect", java_static("java.util.stream.Collectors", "toList"));
}

function readFile(relPath) {
  path = java_static("java.nio.file.Paths", "get", java_call(dataDir, "toString"), "scripts", relPath);
  return java_static("java.nio.file.Files", "readString", path);
}

function writeFile(relPath, content) {
  path = java_static("java.nio.file.Paths", "get", java_call(dataDir, "toString"), "scripts", relPath);
  java_static("java.nio.file.Files", "writeString", path, content);
}


function uiComp(type, id)   { java_call(dynUI, "createComponent", type, id); }
function uiSet(id, k, v)    { java_call(dynUI, "setProperty", id, k, v); }
function uiAdd(p, c)        { java_call(dynUI, "addChild", p, c); }
function uiOn(c, e, fn)     { java_call(dynUI, "setCallback", c, e, fn); }
function uiRegister(id)     { java_call(dynUI, "registerRoot", id); }
function uiClear(id)        { java_call(dynUI, "clearChildren", id); }

// ── Script reload via reflection chain ──

function reloadAll() {
  loader = plugin.getScriptLoader;
  loader.reloadAll;
  gameMgr = plugin.getGameManager;
  gameMgr.clearEvents;
  scripts = loader.loadAll;
  i = 0;
  while (i < len(scripts)) {
    plugin.getInterpreter.execute(scripts[i]);
    i = i + 1;
  }
}

// ── State ──

editor_content = "";
current_file = "";
file_list_cache = [];
console_lines = [];

// ── UI ──

function buildEditor() {
  uiClear("editor_win");

  uiComp("SCROLL_PANEL", "file_tree");
  uiSet("file_tree", "Size", "200,400");
  uiSet("file_tree", "Position", "0,0");
  uiAdd("editor_win", "file_tree");

  uiComp("TEXT_AREA", "code_area");
  uiSet("code_area", "Size", "600,400");
  uiSet("code_area", "Position", "210,0");
  uiAdd("editor_win", "code_area");

  uiComp("TEXT_AREA", "console");
  uiSet("console", "Size", "810,80");
  uiSet("console", "Position", "0,410");
  uiAdd("editor_win", "console");

  toolbar = [["btn_refresh","Refresh",0,"on_refresh"],
             ["btn_save","Save",70,"on_save"],
             ["btn_run","Run",140,"on_run"],
             ["btn_new","+New",210,"on_new"]];
  for (i = 0; i < len(toolbar); i++) {
    entry = toolbar[i];
    uiComp("TEXT_BUTTON", entry[0]);
    uiSet(entry[0], "Text", entry[1]);
    uiSet(entry[0], "Position", entry[2] + ",500");
    uiAdd("editor_win", entry[0]);
    uiOn(entry[0], "click", entry[3]);
  }
}

// ── Events ──

function on_refresh() {
  files = listScripts();
  file_list_cache = files;
  uiClear("file_tree");
  y = 0;
  i = 0;
  while (i < len(files)) {
    id = "fe_" + i;
    uiComp("TEXT_BUTTON", id);
    uiSet(id, "Text", files[i]);
    uiSet(id, "Position", "0," + y);
    uiAdd("file_tree", id);
    uiOn(id, "click", "on_file_click");
    y = y + 22;
    i = i + 1;
  }
  log("Refreshed: " + len(files) + " files");
}

function on_file_click(index) {
  i = floor(index);
  if (i >= 0 && i < len(file_list_cache)) {
    current_file = file_list_cache[i];
    editor_content = readFile(current_file);
    uiSet("code_area", "Text", editor_content);
    log("Opened: " + current_file);
  }
}

function on_save() {
  if (current_file == "") { log("No file open"); return; }
  writeFile(current_file, editor_content);
  log("Saved: " + current_file);
}

function on_run() {
  if (current_file != "") { on_save(); }
  reloadAll();
  log("Reloaded all scripts");
  on_refresh();
  uiSet("code_area", "Text", editor_content);
}

function on_new() {
  name = java_call(java_static("java.util.UUID", "randomUUID"), "toString") + ".hytale";
  name = java_call(name, "substring", 0, 8) + ".hytale";
  template = "// " + name + "\n\non_server_start {\n  print(\"Hello!\");\n}\n";
  writeFile(name, template);
  current_file = name;
  editor_content = template;
  uiSet("code_area", "Text", template);
  log("Created: " + name);
  on_refresh();
}

function log(msg) {
  ts = java_static("java.time.LocalTime", "now");
  push(console_lines, "[" + ts + "] " + msg);
  text = "";
  i = 0;
  while (i < len(console_lines)) {
    if (i > 0) text = text + "\n";
    text = text + console_lines[i];
    i = i + 1;
  }
  uiSet("console", "Text", text);
}

// ── Register ──

on_server_start {
  uiComp("WINDOW", "editor_win");
  uiSet("editor_win", "Title", "Orbis Editor (Pure Reflection)");
  uiSet("editor_win", "Size", "830,540");
  buildEditor();
  uiRegister("editor_win");
  log("Editor ready. Use /orbis editor to open.");
}