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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>Legal Document Summarizer</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 20px;
            background-color: #f4f4f4;
            color: #333;
        }
        .container {
            max-width: 900px;
            margin: 0 auto;
            background-color: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        h1 {
            color: #0056b3;
            text-align: center;
            margin-bottom: 30px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
        }
        textarea,
        input[type="text"] {
            width: 100%;
            padding: 10px;
            margin-bottom: 20px;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-sizing: border-box;
            font-size: 16px;
        }
        button {
            background-color: #007bff;
            color: white;
            padding: 12px 20px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 18px;
            width: 100%;
            transition: background-color 0.2s ease-in-out;
        }
        button:hover {
            background-color: #0056b3;
        }
        #loading {
            display: none;
            text-align: center;
            margin-top: 20px;
            font-size: 1.1em;
            color: #007bff;
        }
        #summaryOutput {
            margin-top: 30px;
            padding: 15px;
            background-color: #e9ecef;
            border: 1px solid #ced4da;
            border-radius: 4px;
            white-space: pre-wrap;
            word-wrap: break-word;
            min-height: 100px;
        }
        .error {
            color: red;
            font-weight: bold;
            margin-top: 10px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Legal Document Summarizer (Mistral-7B QLoRA)</h1>
        <p>Enter an instruction and a legal document to generate a summary.</p>

        <label for="instruction">Instruction:</label>
        <input type="text" id="instruction" placeholder="e.g., Summarize the key legal points." value="Summarize the key legal points.">

        <label for="inputDocument">Input Document:</label>
        <textarea id="inputDocument" rows="10" placeholder="Paste your legal document here..."></textarea>

        <button onclick="getSummary()">Generate Summary</button>

        <div id="loading">Generating summary... Please wait.</div>
        <div id="error" class="error"></div>

        <label for="summaryOutput">Generated Summary:</label>
        <div id="summaryOutput"></div>
    </div>

    <script>
        async function getSummary() {
            const instruction = document.getElementById('instruction').value;
            const inputDocument = document.getElementById('inputDocument').value;
            const summaryOutput = document.getElementById('summaryOutput');
            const loadingDiv = document.getElementById('loading');
            const errorDiv = document.getElementById('error');

            summaryOutput.textContent = ''; // Clear previous output
            errorDiv.textContent = '';      // Clear previous errors

            if (!instruction || !inputDocument) {
                errorDiv.textContent = 'Please provide both an instruction and an input document.';
                return;
            }

            loadingDiv.style.display = 'block'; // Show loading message

            try {
                // Adjust this URL if your Flask app is hosted elsewhere
                const response = await fetch('http://localhost:8000/summarize', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                    },
                    body: JSON.stringify({ instruction: instruction, input_document: inputDocument }),
                });

                const data = await response.json();

                if (response.ok) {
                    summaryOutput.textContent = data.summary;
                }
 else {
                    errorDiv.textContent = 'Error: ' + (data.error || 'Unknown error');
                }
            } catch (e) {
                errorDiv.textContent = 'Network error or server unavailable: ' + e.message;
                console.error('Fetch error:', e);
            } finally {
                loadingDiv.style.display = 'none'; // Hide loading message
            }
        }
    </script>
</body>
</html>