MainPage.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="Styles.css" />
    <title>Code Submission</title>
  </head>

  <body>
    <div>
      <h1>Javascript Code Coverage Analyzer</h1>
      <form id="codeForm">
        <label
          for="code"
          style='
            font-family: "Gill Sans", "Gill Sans MT",
              Calibri, Trebuchet MS", sans-serif;
          '
          >Enter Code:</label
        >
        <textarea
          id="code"
          name="code"
          placeholder="Type your code here..."
        ></textarea>

        <button type="submit" class="form" style="margin-left: 200px">
          Submit
        </button>
      </form>
    </div>
  </body>
  <script>
    // Function to handle the redirect after form submission
    function handleRedirect() {
      console.log("Redirecting to new page");
      window.location.href = "/ShowReports.html";
    }

    document
      .getElementById("codeForm")
      .addEventListener("submit", async function (event) {
        event.preventDefault();
        if (document.getElementById("code").value == "") {
          alert("Please Enter your code");
          window.reload();
        } else {
          try {
            await fetch("http://localhost:3000/writeToFile", {
              method: "POST",
              headers: {
                "Content-Type": "application/json",
              },
              body: JSON.stringify({
                code: document.getElementById("code").value,
              }),
            }).then(handleRedirect());
          } catch (error) {
            console.error("Error submitting form:", error);
          }
        }
      });
  </script>
</html>