const { app, BrowserWindow, Menu, dialog, shell } = require("electron");
const path = require("node:path");
const { SITE_URL, isInternal, isExternal } = require("./navigation.cjs");
let mainWindow;
const smokeTest = process.argv.includes("--smoke-test");
app.setAppUserModelId("app.minegeo.desktop");
if (!app.requestSingleInstanceLock()) app.quit();
else {
  app.on("second-instance", () => {
    if (!mainWindow) return;
    if (mainWindow.isMinimized()) mainWindow.restore();
    mainWindow.show();
    mainWindow.focus();
  });
  app.whenReady().then(createWindow);
}
function openExternal(url) {
  if (isExternal(url)) shell.openExternal(url).catch(() => {});
}
function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1360,
    height: 900,
    minWidth: 800,
    minHeight: 600,
    title: "MineGeo",
    backgroundColor: "#14201b",
    show: false,
    icon: path.join(__dirname, "assets/icon.png"),
    webPreferences: {
      nodeIntegration: false,
      contextIsolation: true,
      sandbox: true,
      webSecurity: true,
      allowRunningInsecureContent: false,
      partition: "persist:minegeo",
    },
  });
  const contents = mainWindow.webContents;
  contents.session.setPermissionRequestHandler((_wc, _permission, callback) =>
    callback(false),
  );
  contents.session.setPermissionCheckHandler(() => false);
  contents.on("will-attach-webview", (event) => event.preventDefault());
  for (const eventName of ["will-navigate", "will-redirect"]) {
    contents.on(eventName, (event, url) => {
      if (!isInternal(url)) {
        event.preventDefault();
        openExternal(url);
      }
    });
  }
  contents.setWindowOpenHandler(({ url }) => {
    if (isInternal(url)) contents.loadURL(url).catch(() => {});
    else openExternal(url);
    return { action: "deny" };
  });
  contents.on(
    "did-fail-load",
    (_event, code, _description, _url, isMainFrame) => {
      if (!isMainFrame || code === -3) return;
      if (smokeTest) {
        console.error("MineGeo smoke test: load failed", code);
        app.exit(1);
        return;
      }
      const html =
        '<!doctype html><html lang="en"><meta charset="utf-8"><meta http-equiv="Content-Security-Policy" content="default-src \'none\'; style-src \'unsafe-inline\'"><title>MineGeo · Connection interrupted</title><body style="background:#14201b;color:#f4f1e6;font:18px system-ui;padding:10vh 10vw"><h1>Let’s get you back to MineGeo.</h1><p>Check your internet connection, then choose Game → Retry connection (Ctrl+R).</p><p>Your account and saved games will be here when you reconnect.</p></body></html>';
      contents
        .loadURL("data:text/html;charset=utf-8," + encodeURIComponent(html))
        .catch(() => {});
      mainWindow.show();
    },
  );
  mainWindow.once("ready-to-show", () => mainWindow.show());
  contents.on("did-finish-load", () => {
    if (smokeTest && isInternal(contents.getURL())) {
      console.log(
        "MineGeo smoke test: production site loaded with sandbox enabled",
      );
      app.exit(0);
    }
  });
  contents.session.on("will-download", (_event, item) => {
    item.once("done", (_downloadEvent, state) => {
      if (state === "interrupted" && !mainWindow.isDestroyed())
        dialog.showMessageBox(mainWindow, {
          type: "error",
          title: "Download interrupted",
          message: "Please check your connection and try downloading again.",
        });
    });
  });
  Menu.setApplicationMenu(
    Menu.buildFromTemplate([
      {
        label: "Game",
        submenu: [
          {
            label: "Home",
            accelerator: "Alt+Home",
            click: () => contents.loadURL(SITE_URL).catch(() => {}),
          },
          {
            label: "Back",
            accelerator: "Alt+Left",
            click: () => {
              if (contents.navigationHistory.canGoBack())
                contents.navigationHistory.goBack();
            },
          },
          {
            label: "Retry connection",
            accelerator: "CmdOrCtrl+R",
            click: () => {
              if (isInternal(contents.getURL())) contents.reload();
              else contents.loadURL(SITE_URL).catch(() => {});
            },
          },
          { type: "separator" },
          { role: "quit" },
        ],
      },
      {
        label: "Edit",
        submenu: [
          { role: "undo" },
          { role: "redo" },
          { type: "separator" },
          { role: "cut" },
          { role: "copy" },
          { role: "paste" },
          { role: "selectAll" },
        ],
      },
      {
        label: "View",
        submenu: [
          { role: "resetZoom" },
          { role: "zoomIn" },
          { role: "zoomOut" },
          { type: "separator" },
          { role: "togglefullscreen" },
        ],
      },
      {
        label: "Help",
        submenu: [
          { label: "Open in browser", click: () => openExternal(SITE_URL) },
          {
            label: "About MineGeo",
            click: () =>
              dialog.showMessageBox(mainWindow, {
                title: "MineGeo",
                message: `MineGeo Desktop ${app.getVersion()}`,
                detail:
                  "Play at minegeo.vercel.app. Requires an internet connection.",
              }),
          },
        ],
      },
    ]),
  );
  contents.loadURL(SITE_URL).catch(() => {});
  if (smokeTest) setTimeout(() => app.exit(1), 60000).unref();
  mainWindow.on("closed", () => {
    mainWindow = null;
  });
}
app.on("window-all-closed", () => {
  if (process.platform !== "darwin") app.quit();
});
app.on("activate", () => {
  if (BrowserWindow.getAllWindows().length === 0) createWindow();
});