/* obsidian-tray v0.1.2
   by @dragonwocky */

"use strict";

let tray;
const obsidian = require("obsidian"),
  { app, BrowserWindow, globalShortcut, Tray, Menu, nativeImage } =
    require("electron").remote;

const showWindows = () => {
    console.log("obsidian-tray: showing windows");
    const windows = BrowserWindow.getAllWindows(),
      currentWindow = windows.find((win) => win.isFocused()) || windows[0];
    windows.forEach((win) => win.show());
    currentWindow.focus();
  },
  hideWindows = (runInBackground) => {
    console.log("obsidian-tray: hiding windows");
    const windows = BrowserWindow.getAllWindows();
    windows.forEach((win) => [
      win.isFocused() && win.blur(),
      runInBackground ? win.hide() : win.minimize(),
    ]);
  },
  toggleWindows = (runInBackground, checkForFocus = true) => {
    const windows = BrowserWindow.getAllWindows(),
      openWindows = windows.some((win) => {
        return (!checkForFocus || win.isFocused()) && win.isVisible();
      });
    if (openWindows) {
      hideWindows(runInBackground);
    } else showWindows();
  };

// let _onbeforeunload;
const onWindowClose = (event) => {
    event.stopImmediatePropagation();
    // event.preventDefault();
    console.log("obsidian-tray: intercepting window close");
    const windows = BrowserWindow.getAllWindows(),
      currentWindow = windows.find((win) => win.isFocused());
    currentWindow.hide();
  },
  interceptWindowClose = () => {
    // _onbeforeunload = window.onbeforeunload;
    // window.onbeforeunload = onWindowClose;
    const closeBtn = document.querySelector(".mod-close");
    closeBtn.addEventListener("click", onWindowClose, true);
  },
  cleanupWindowClose = () => {
    // window.onbeforeunload = _onbeforeunload;
    const closeBtn = document.querySelector(".mod-close");
    closeBtn.removeEventListener("click", onWindowClose, true);
  };

const setLaunchOnStartup = (plugin) => {
    app.setLoginItemSettings({
      openAtLogin: plugin.settings.launchOnStartup,
      openAsHidden: plugin.settings.runInBackground,
    });
  },
  relaunchObsidian = () => {
    app.relaunch();
    app.exit(0);
  };

const createTrayIcon = (plugin) => {
  console.log("obsidian-tray: creating tray icon");
  const obsidianIcon = nativeImage.createFromDataURL(
      // 16x16 base64 obsidian icon: generated from obsidian.asar/icon.png
      `data:image/png;base64,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`
    ),
    contextMenu = Menu.buildFromTemplate([
      {
        type: "normal",
        label: "Open Obsidian",
        accelerator: plugin.settings.toggleWindowFocusHotkey,
        click: showWindows,
      },
      {
        type: "normal",
        label: "Hide Obsidian",
        accelerator: plugin.settings.toggleWindowFocusHotkey,
        click: hideWindows,
      },
      { type: "separator" },
      {
        label: "Relaunch Obsidian",
        click: relaunchObsidian,
      },
      {
        label: "Quit Obsidian",
        role: "quit",
      },
    ]);
  tray = new Tray(obsidianIcon);
  tray.setContextMenu(contextMenu);
  tray.setToolTip("Obsidian");
  tray.on("click", () => toggleWindows(plugin.settings.runInBackground, false));
};

const registerHotkey = (plugin) => {
    console.log("obsidian-tray: registering hotkey");
    try {
      const accelerator = plugin.settings.toggleWindowFocusHotkey;
      globalShortcut.register(accelerator, () => {
        const runInBackground = plugin.settings.runInBackground;
        toggleWindows(runInBackground);
      });
    } catch {}
  },
  unregisterHotkey = (plugin) => {
    console.log("obsidian-tray: unregistering hotkey");
    try {
      const accelerator = plugin.settings.toggleWindowFocusHotkey;
      globalShortcut.unregister(accelerator);
    } catch {}
  };

const OPTIONS = [
  {
    key: "launchOnStartup",
    desc: "Open Obsidian automatically whenever you log into your computer.",
    type: "toggle",
    default: false,
    onChange: (plugin) => setLaunchOnStartup(plugin),
  },
  {
    key: "hideOnLaunch",
    desc: `
      Minimises Obsidian automatically whenever the app is launched. If the
      "Run in background" option is enabled, windows will be hidden to the system
      tray/menubar instead of minimised to the taskbar/dock.
    `,
    type: "toggle",
    default: false,
  },
  {
    key: "runInBackground",
    desc: `
      Hide the app and continue to run it in the background instead of quitting
      it when pressing the window close button or toggle focus hotkey.
    `,
    type: "toggle",
    default: false,
    onChange: (plugin) => {
      setLaunchOnStartup(plugin);
      const runInBackground = plugin.settings.runInBackground;
      if (!runInBackground) showWindows();
    },
  },
  {
    key: "createTrayIcon",
    desc: `
      Add an icon to your system tray/menubar to bring hidden Obsidian windows
      back into focus on click or force a full quit/relaunch of the app through
      the right-click menu.
      <br><span class="mod-warning">Changing this option requires a restart to take effect.</span>
    `,
    type: "toggle",
    default: true,
  },
  {
    key: "toggleWindowFocusHotkey",
    desc: `
      Format:
      <a href="https://www.electronjs.org/docs/latest/api/accelerator">
        Electron accelerator
      </a>
    `,
    type: "text",
    default: "CmdOrCtrl+Shift+Tab",
    onBeforeChange: (plugin) => unregisterHotkey(plugin),
    onChange: (plugin) => registerHotkey(plugin),
  },
];

const keyToLabel = (key) =>
    key[0].toUpperCase() +
    key
      .slice(1)
      .split(/(?=[A-Z])/)
      .map((word) => word.toLowerCase())
      .join(" "),
  htmlToFragment = (html) =>
    document
      .createRange()
      .createContextualFragment((html ?? "").replace(/\s+/g, " "));

class SettingsTab extends obsidian.PluginSettingTab {
  constructor(app, plugin) {
    super(app, plugin);
    this.plugin = plugin;
  }
  display() {
    this.containerEl.empty();
    for (const opt of OPTIONS) {
      const name = keyToLabel(opt.key),
        desc = htmlToFragment(opt.desc),
        onChange = async (value) => {
          await opt.onBeforeChange?.(this.plugin, value);
          this.plugin.settings[opt.key] = value;
          await this.plugin.saveSettings();
          await opt.onChange?.(this.plugin, value);
        };

      const setting = new obsidian.Setting(this.containerEl)
        .setName(name)
        .setDesc(desc);
      switch (opt.type) {
        case "toggle":
          setting.addToggle((toggle) =>
            toggle.setValue(this.plugin.settings[opt.key]).onChange(onChange)
          );
          break;
        case "text":
        default:
          setting.addText((text) =>
            text
              .setPlaceholder(opt.default)
              .setValue(this.plugin.settings[opt.key])
              .onChange(onChange)
          );
      }
    }
  }
}

class TrayPlugin extends obsidian.Plugin {
  async onload() {
    console.log("obsidian-tray: loading");
    await this.loadSettings();
    this.addSettingTab(new SettingsTab(this.app, this));
    const { settings } = this;

    registerHotkey(this);
    setLaunchOnStartup(this);
    if (settings.createTrayIcon) createTrayIcon(this);
    if (settings.runInBackground) interceptWindowClose();
    if (settings.hideOnLaunch) {
      let _hidden;
      this.registerEvent(
        this.app.workspace.onLayoutReady(() => {
          if (_hidden) return;
          _hidden = true;
          hideWindows(settings.runInBackground);
        })
      );
    }
  }
  onunload() {
    unregisterHotkey(this);
    cleanupWindowClose();
  }

  async loadSettings() {
    const DEFAULT_SETTINGS = OPTIONS.map((opt) => ({ [opt.key]: opt.default }));
    this.settings = Object.assign(...DEFAULT_SETTINGS, await this.loadData());
  }
  async saveSettings() {
    await this.saveData(this.settings);
  }
}
module.exports = TrayPlugin;