const axios = require("axios");
const fs = require("fs");
const path = require("path");

async function executeScriptOnCurrentTab(scriptFile) {
  try {
    // Get list of tabs from Chrome DevTools Protocol
    const response = await axios.get("http://localhost:9222/json");
    const tabs = response.data;

    // Find the first page tab (not extensions or devtools)
    const targetTab = tabs.find(
      (tab) => tab.type === "page" && !tab.title.includes("DevTools")
    );

    if (!targetTab) {
      console.error(
        "No active page tab found. Make sure Chrome is running with --remote-debugging-port=9222"
      );
      process.exit(1);
    }

    console.log(`Found tab: ${targetTab.title}`);
    console.log(`URL: ${targetTab.url}`);

    // Read the script content
    const scriptContent = fs.readFileSync(scriptFile, "utf-8");

    // Connect to the WebSocket debugger URL
    const WebSocket = require("ws");
    const ws = new WebSocket(targetTab.webSocketDebuggerUrl);

    ws.on("open", () => {
      console.log("Connected to Chrome DevTools");

      // Send Runtime.evaluate command to execute the script
      ws.send(
        JSON.stringify({
          id: 1,
          method: "Runtime.evaluate",
          params: {
            expression: scriptContent,
            returnByValue: true,
          },
        })
      );
    });

    ws.on("message", (data) => {
      const message = JSON.parse(data);

      if (message.id === 1) {
        if (message.result.exceptionDetails) {
          console.error(
            "Script execution error:",
            message.result.exceptionDetails
          );
        } else {
          console.log("Script executed successfully");
          if (message.result.result.value !== undefined) {
            console.log("Result:", message.result.result.value);
          }
        }
        ws.close();
        process.exit(0);
      }
    });

    ws.on("error", (error) => {
      console.error("WebSocket error:", error);
      process.exit(1);
    });
  } catch (error) {
    if (error.code === "ECONNREFUSED") {
      console.error(
        "Could not connect to Chrome. Make sure Chrome is running with:"
      );
      console.error("chrome.exe --remote-debugging-port=9222");
    } else {
      console.error("Error:", error.message);
    }
    process.exit(1);
  }
}

const scriptFile = process.argv[2];

if (!scriptFile) {
  console.error("Usage: node run-script.js <script-file>");
  process.exit(1);
}

if (!fs.existsSync(scriptFile)) {
  console.error(`Script file not found: ${scriptFile}`);
  process.exit(1);
}

executeScriptOnCurrentTab(scriptFile);