main.ts

import { Plugin, WorkspaceLeaf } from "obsidian";
import { NoteBoardSettingTab, DEFAULT_SETTINGS } from "./src/settings";
import type { NoteBoardSettings } from "./src/settings";
import { NOTEBOARD_VIEW_TYPE, NoteBoardView } from "./src/mainView";
import { AITaskQueue } from "./src/noteOps";

export default class NoteBoardPlugin extends Plugin {
  settings: NoteBoardSettings = DEFAULT_SETTINGS;
  taskQueue!: AITaskQueue;

  /**
   * 全局白噪音 iframe 容器（挂在 document.body），插件生命周期内只创建一次。
   * 这样在 Tab 切换、面板重渲染时 iframe 不会被卸载，播放状态可保持。
   */
  ambientHost: HTMLElement | null = null;
  private ambientHostListeners: Array<() => void> = [];

  /** 确保全局白噪音宿主已创建（懒创建），返回宿主节点。 */
  ensureAmbientHost(): HTMLElement {
    if (this.ambientHost && document.body.contains(this.ambientHost)) {
      return this.ambientHost;
    }
    const host = document.body.createDiv({ cls: "nb-ambient-host" });
    // 默认隐藏但不卸载：用 visibility + 缩小到 0x0，iframe 仍保持 DOM 与播放状态
    host.style.visibility = "hidden";
    host.style.position = "fixed";
    host.style.right = "16px";
    host.style.bottom = "16px";
    host.style.zIndex = "9999";
    host.style.pointerEvents = "none"; // 隐藏时不拦截点击
    host.style.transformOrigin = "bottom right";
    host.style.transform = "scale(0.001)";
    host.style.opacity = "0";
    host.style.transition =
      "opacity 0.12s ease, transform 0.12s ease";

    const iframe = host.createEl("iframe");
    iframe.setAttribute("src", "https://www.ppbzy.com/embed");
    iframe.setAttribute("width", "420");
    iframe.setAttribute("height", "200");
    iframe.setAttribute("frameborder", "0");
    iframe.setAttribute("allow", "autoplay");
    iframe.style.borderRadius = "16px";
    iframe.style.border = "none";
    iframe.style.display = "block";

    this.ambientHost = host;
    this.register(() => {
      this.setAmbientVisible(false);
      // 插件卸载时彻底移除 iframe
      host.remove();
      if (this.ambientHost === host) this.ambientHost = null;
    });
    return host;
  }

  /** 切换白噪音宿主的可见性（显隐不卸载 iframe，播放状态保留）。 */
  setAmbientVisible(visible: boolean) {
    const host = this.ensureAmbientHost();
    if (visible) {
      host.style.visibility = "visible";
      host.style.pointerEvents = "auto";
      host.style.transform = "scale(1)";
      host.style.opacity = "1";
    } else {
      host.style.visibility = "hidden";
      host.style.pointerEvents = "none";
      host.style.transform = "scale(0.001)";
      host.style.opacity = "0";
    }
    // 同步通知订阅者（多个 Dashboard 开关按钮要跟这个状态一致）
    this.ambientHostListeners.forEach((fn) => {
      try { fn(); } catch {}
    });
  }

  /** 订阅宿主显隐状态变化，返回取消订阅函数。 */
  onAmbientHostChange(fn: () => void): () => void {
    this.ambientHostListeners.push(fn);
    return () => {
      const i = this.ambientHostListeners.indexOf(fn);
      if (i >= 0) this.ambientHostListeners.splice(i, 1);
    };
  }

  /** 返回当前宿主是否可见（白噪音面板处于展开状态）。 */
  isAmbientVisible(): boolean {
    if (!this.ambientHost) return false;
    return this.ambientHost.style.visibility === "visible";
  }

  async onload() {
    await this.loadSettings();

    this.taskQueue = new AITaskQueue(this);

    this.registerView(NOTEBOARD_VIEW_TYPE, (leaf) => new NoteBoardView(leaf, this));

    // 单个插件图标，默认打开「数据面板」
    this.addRibbonIcon("layout-dashboard", "NoteBoard", () => {
      this.activateView("dashboard");
    });

    this.addCommand({
      id: "open-dashboard",
      name: "打开数据面板",
      callback: () => this.activateView("dashboard"),
    });
    this.addCommand({
      id: "open-note-ops",
      name: "打开笔记操作页面",
      callback: () => this.activateView("noteops"),
    });

    this.addSettingTab(new NoteBoardSettingTab(this.app, this));
  }

  /** 打开主视图并切换到指定 Tab。 */
  async activateView(tab: "dashboard" | "noteops") {
    const { workspace } = this.app;
    let leaf: WorkspaceLeaf | null = null;
    const leaves = workspace.getLeavesOfType(NOTEBOARD_VIEW_TYPE);
    if (leaves.length > 0) {
      leaf = leaves[0];
    } else {
      leaf = workspace.getLeaf("tab");
      await leaf.setViewState({ type: NOTEBOARD_VIEW_TYPE, active: true });
    }
    workspace.revealLeaf(leaf);
    const view = leaf.view;
    if (view instanceof NoteBoardView) {
      await view.activateTab(tab);
    }
  }

  async loadSettings() {
    this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());
  }

  async saveSettings() {
    await this.saveData(this.settings);
  }
}