/**
 * IC 助手面板主组件
 * 功能：创建和管理 IC Coder 聊天面板
 * 依赖：vscode, webviewContent, helpers
 * 使用场景：用户打开 IC Coder 聊天界面
 */
import * as vscode from "vscode";
import { getWebviewContent } from "../views/webviewContent";
import { ChatHistoryManager } from "../utils/chatHistoryManager";
import { checkAuthAndPromptLogin } from "./helpers/authHelper";
import {
  sendUserInfoToWebview,
  setupBalanceUpdateCallback,
} from "./helpers/userInfoHelper";
import { handleWebviewMessage } from "./helpers/messageRouter";

function getIconUris(
  webview: vscode.Webview,
  context: vscode.ExtensionContext,
) {
  return {
    icon: webview.asWebviewUri(
      vscode.Uri.joinPath(context.extensionUri, "media", "icon.png"),
    ),
    auto: webview.asWebviewUri(
      vscode.Uri.joinPath(
        context.extensionUri,
        "dist",
        "assets",
        "model",
        "Auto.png",
      ),
    ),
    lite: webview.asWebviewUri(
      vscode.Uri.joinPath(
        context.extensionUri,
        "dist",
        "assets",
        "model",
        "lite.png",
      ),
    ),
    sy: webview.asWebviewUri(
      vscode.Uri.joinPath(
        context.extensionUri,
        "dist",
        "assets",
        "model",
        "Sy.png",
      ),
    ),
    max: webview.asWebviewUri(
      vscode.Uri.joinPath(
        context.extensionUri,
        "dist",
        "assets",
        "model",
        "Max.png",
      ),
    ),
    qrCode: webview.asWebviewUri(
      vscode.Uri.joinPath(
        context.extensionUri,
        "dist",
        "assets",
        "QRCode",
        "wx.png",
      ),
    ),
    logo: webview.asWebviewUri(
      vscode.Uri.joinPath(context.extensionUri, "media", "homepage-logo.png"),
    ),
  };
}

export async function showICHelperPanel(
  context: vscode.ExtensionContext,
  viewColumn?: vscode.ViewColumn,
) {
  if (!(await checkAuthAndPromptLogin(context))) {
    return;
  }

  const panel = vscode.window.createWebviewPanel(
    "icCoder",
    "IC Coder",
    viewColumn || vscode.ViewColumn.Beside,
    {
      enableScripts: true,
      retainContextWhenHidden: true,
      localResourceRoots: [
        vscode.Uri.joinPath(context.extensionUri, "media"),
        vscode.Uri.joinPath(context.extensionUri, "dist", "assets"),
      ],
    },
  );

  (global as any).currentICHelperPanel = panel;

  const panelId = `panel_${Date.now()}_${Math.random()
    .toString(36)
    .substr(2, 9)}`;
  (panel as any).__uniqueId = panelId;
  (panel as any).__context = context;

  panel.iconPath = vscode.Uri.joinPath(
    context.extensionUri,
    "media",
    "icon.png",
  );

  const icons = getIconUris(panel.webview, context);
  panel.webview.html = getWebviewContent(
    icons.icon.toString(),
    icons.auto.toString(),
    icons.lite.toString(),
    icons.sy.toString(),
    icons.max.toString(),
    icons.qrCode.toString(),
    icons.logo.toString(),
  );

  await sendUserInfoToWebview(panel, context);
  setupBalanceUpdateCallback(panel, context);

  const pendingMessage = context.globalState.get("pendingMessage") as any;
  if (pendingMessage) {
    await context.globalState.update("pendingMessage", undefined);
    setTimeout(() => {
      panel.webview.postMessage({
        command: "autoSendMessage",
        text: pendingMessage.text,
        mode: pendingMessage.mode,
        serviceTier: pendingMessage.serviceTier,
      });
    }, 500);
  }

  panel.webview.onDidReceiveMessage(
    async (message) => {
      await handleWebviewMessage(message, panel, context);
    },
    undefined,
    context.subscriptions,
  );

  panel.onDidDispose(
    () => {
      const historyManager = ChatHistoryManager.getInstance();
      const panelId = (panel as any).__uniqueId;
      historyManager.removePanelTask(panelId);
    },
    undefined,
    context.subscriptions,
  );
}