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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>Swedish → English Translator</title>

  <script
    type="module"
    crossorigin
    src="https://cdn.jsdelivr.net/npm/@gradio/lite/dist/lite.js">
  </script>

  <link
    rel="stylesheet"
    crossorigin
    href="https://cdn.jsdelivr.net/npm/@gradio/lite/dist/lite.css">

  <style>
    body {
      max-width: 900px;
      margin: 0 auto;
      padding: 24px;
      font-family: Arial, sans-serif;
    }

    #status {
      color: #555;
      margin: 8px 0 18px;
    }

    #error {
      color: #b00020;
      white-space: pre-wrap;
      margin-top: 12px;
    }

    textarea {
      width: 100%;
      min-height: 120px;
      padding: 12px;
      box-sizing: border-box;
      font-size: 16px;
    }

    button {
      margin: 14px 0;
      padding: 10px 18px;
      font-size: 16px;
      cursor: pointer;
    }
  </style>
</head>

<body>
  <h1>English → Swedish Translator</h1>
  <p>
    This translation model runs directly in your browser.
    The first translation can take a little while because the model must download.
  </p>

  <p id="status">Loading translation model…</p>

  <label for="input">Swedish text</label>
  <textarea
    id="input"
    placeholder="Write an Swedish sentence here..."
    disabled
  ></textarea>

  <br>

  <button id="translate-button" disabled>Translate</button>

  <label for="output">English translation</label>
  <textarea id="output" readonly></textarea>

  <p id="error"></p>

  <script type="module">
    import { pipeline, env } from
      "https://cdn.jsdelivr.net/npm/@huggingface/transformers@3.0.2";

    const status = document.getElementById("status");
    const input = document.getElementById("input");
    const output = document.getElementById("output");
    const button = document.getElementById("translate-button");
    const errorBox = document.getElementById("error");

    let translator;

    async function loadModel() {
      try {
        env.allowLocalModels = false;

        translator = await pipeline(
          "translation",
          "Xenova/opus-mt-sv-en"
        );

        status.textContent = "Model ready. Enter Swedish text and click Translate.";
        input.disabled = false;
        button.disabled = false;
      } catch (error) {
        console.error(error);
        status.textContent = "The translation model could not load.";
        errorBox.textContent = String(error);
      }
    }

    button.addEventListener("click", async () => {
      const text = input.value.trim();

      if (!text) {
        output.value = "Please write something first.";
        return;
      }

      button.disabled = true;
      status.textContent = "Translating…";
      errorBox.textContent = "";

      try {
        const result = await translator(text);
        output.value = result[0].translation_text;
        status.textContent = "Done.";
      } catch (error) {
        console.error(error);
        status.textContent = "Translation failed.";
        errorBox.textContent = String(error);
      } finally {
        button.disabled = false;
      }
    });

    loadModel();
  </script>
</body>
</html>