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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>Sentiment Analysis</title>
    <style>

        body {

            font-family: Arial, sans-serif;

            max-width: 800px;

            margin: 0 auto;

            padding: 20px;

            background-color: #f5f5f5;

        }

        .container {

            background-color: white;

            padding: 30px;

            border-radius: 10px;

            box-shadow: 0 2px 10px rgba(0,0,0,0.1);

        }

        h1 {

            color: #333;

            text-align: center;

            margin-bottom: 30px;

        }

        textarea {

            width: 100%;

            min-height: 120px;

            padding: 15px;

            border: 2px solid #ddd;

            border-radius: 5px;

            font-size: 16px;

            resize: vertical;

        }

        button {

            background-color: #007bff;

            color: white;

            padding: 12px 24px;

            border: none;

            border-radius: 5px;

            cursor: pointer;

            font-size: 16px;

            margin: 10px 5px;

        }

        button:hover {

            background-color: #0056b3;

        }

        .result {

            margin-top: 20px;

            padding: 15px;

            border-radius: 5px;

            font-weight: bold;

        }

        .positive {

            background-color: #d4edda;

            color: #155724;

            border: 1px solid #c3e6cb;

        }

        .negative {

            background-color: #f8d7da;

            color: #721c24;

            border: 1px solid #f5c6cb;

        }

        .confidence {

            margin-top: 10px;

            font-size: 14px;

        }

        .api-info {

            margin-top: 30px;

            padding: 20px;

            background-color: #e9ecef;

            border-radius: 5px;

        }

    </style>
</head>
<body>
    <div class="container">
        <h1>🎭 Sentiment Analysis</h1>
        <p>Enter your text below to analyze its sentiment:</p>
        
        <textarea id="textInput" placeholder="Type your text here...">I love this new product! It's amazing and works perfectly.</textarea>
        
        <div style="text-align: center;">
            <button onclick="predictSentiment()">Predict Sentiment</button>
            <button onclick="getProbabilities()">Get Probabilities</button>
        </div>
        
        <div id="result"></div>
        
        <div class="api-info">
            <h3>API Endpoints:</h3>
            <ul>
                <li><strong>/predict</strong> - Get sentiment prediction (0 or 1)</li>
                <li><strong>/predict_proba</strong> - Get prediction probabilities</li>
                <li><strong>/docs</strong> - Interactive API documentation</li>
            </ul>
        </div>
    </div>

    <script>

        async function predictSentiment() {

            const text = document.getElementById('textInput').value;

            if (!text.trim()) {

                alert('Please enter some text');

                return;

            }



            try {

                const response = await fetch('/predict', {

                    method: 'POST',

                    headers: {

                        'Content-Type': 'application/json',

                    },

                    body: JSON.stringify({ text: text })

                });



                const result = await response.json();

                displayResult(result, 'prediction');

            } catch (error) {

                console.error('Error:', error);

                displayError('Error making prediction');

            }

        }



        async function getProbabilities() {

            const text = document.getElementById('textInput').value;

            if (!text.trim()) {

                alert('Please enter some text');

                return;

            }



            try {

                const response = await fetch('/predict_proba', {

                    method: 'POST',

                    headers: {

                        'Content-Type': 'application/json',

                    },

                    body: JSON.stringify({ text: text })

                });



                const result = await response.json();

                displayResult(result, 'probability');

            } catch (error) {

                console.error('Error:', error);

                displayError('Error getting probabilities');

            }

        }



        function displayResult(result, type) {

            const resultDiv = document.getElementById('result');

            const sentimentClass = result.sentiment === 'positive' ? 'positive' : 'negative';

            

            let html = `<div class="result ${sentimentClass}">

                <div>Sentiment: ${result.sentiment.toUpperCase()} (${result.prediction})</div>`;

            

            if (type === 'prediction') {

                html += `<div class="confidence">Confidence: ${(result.confidence * 100).toFixed(1)}%</div>`;

            } else if (type === 'probability') {

                html += `<div class="confidence">

                    Probabilities: Negative ${(result.probabilities[0] * 100).toFixed(1)}%, 

                    Positive ${(result.probabilities[1] * 100).toFixed(1)}%

                </div>`;

            }

            

            html += `</div>`;

            resultDiv.innerHTML = html;

        }



        function displayError(message) {

            const resultDiv = document.getElementById('result');

            resultDiv.innerHTML = `<div class="result" style="background-color: #f8d7da; color: #721c24;">${message}</div>`;

        }

    </script>
</body>
</html>