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<!DOCTYPE html>
<html>
<head>
<title>Batch Prediction - Amazon Review Sentiment Analysis</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
<style>
:root {
--color-teal: #5BA082;
--color-lime: #9DC25C;
--color-orange: #D18B5C;
--color-pink: #D29BB5;
--color-beige: #BFB5A0;
--color-rose: #D5658D;
--color-sage: #A3A899;
--color-charcoal: #5B5958;
--color-mint: #A8DCC1;
--color-seafoam: #8EC4B3;
}
body {
background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-sage) 30%, var(--color-beige) 70%);
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
min-height: 100vh;
}
.main-container {
display: flex;
justify-content: center;
align-items: flex-start;
min-height: 100vh;
padding: 20px;
}
.prediction-card {
background: rgba(255,255,255,0.95);
border-radius: 24px;
padding: 40px;
width: 100%;
max-width: 950px;
box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.main-title { font-size: 2.5rem; font-weight: 700; color: var(--color-teal); }
.subtitle { color: var(--color-charcoal); font-size: 1.2rem; }
.upload-zone {
border: 2px dashed var(--color-sage);
border-radius: 20px;
padding: 40px;
text-align: center;
margin-bottom: 20px;
}
.upload-zone:hover { border-color: var(--color-teal); background: rgba(91,160,130,0.05); }
.file-name {
font-weight: 700;
color: var(--color-teal);
margin-top: 12px;
display: inline-block;
}
.submit-btn {
background: var(--color-teal); border: none; color: white;
padding: 16px; border-radius: 50px; font-size: 1.2rem;
font-weight: 700; width: 100%;
}
.confidence-bar { height: 8px; border-radius: 4px; overflow: hidden; margin-top: 5px; }
.confidence-fill { height: 100%; }
.confidence-fill.positive { background: linear-gradient(90deg,var(--color-mint),var(--color-teal)); }
.confidence-fill.negative { background: linear-gradient(90deg,var(--color-rose),var(--color-pink)); }
.confidence-fill.neutral { background: linear-gradient(90deg,var(--color-sage),var(--color-beige)); }
</style>
</head>
<body>
<div class="main-container">
<div class="prediction-card">
<div class="text-center mb-4">
<h1 class="main-title">TranSenti</h1>
<p class="subtitle">Upload multiple reviews for sentiment analysis</p>
</div>
<!-- Error / Success Messages -->
{% if error %}
<div class="alert alert-danger" id="errorMessage">
<i class="fas fa-exclamation-circle"></i> {{ error }}
</div>
{% endif %}
<div class="alert alert-danger" id="errorMessage" style="display:none;">
<i class="fas fa-exclamation-circle"></i> Invalid file format. Please upload a .csv file.
</div>
{% if results %}
<div class="alert alert-success">
<i class="fas fa-check-circle"></i> File processed successfully!
</div>
{% endif %}
<!-- Upload Form -->
<form method="POST" enctype="multipart/form-data" id="uploadForm">
<div class="upload-zone" id="uploadZone">
<i class="fas fa-cloud-upload-alt fa-3x text-success"></i>
<p class="mt-2">Drop your CSV file here or click to browse</p>
<input type="file" name="csvfile" class="file-input" accept=".csv" required id="fileInput" style="display:none;">
<label for="fileInput" class="btn btn-outline-success mt-2">Choose File</label>
<div class="file-name" id="fileName" style="display:none;"></div>
</div>
<button type="submit" class="submit-btn">
<i class="fas fa-brain"></i> Analyze Sentiment
</button>
</form>
<!-- Results Table -->
{% if results %}
<div class="mt-5">
<h4 class="text-center mb-4" style="color: var(--color-teal); font-weight:700;">Prediction Results</h4>
<div class="table-responsive">
<table class="table table-bordered table-hover align-middle">
<thead class="table-success">
<tr>
<th>Review</th>
<th>Sentiment</th>
<th>Confidence</th>
<th>Model Used</th>
</tr>
</thead>
<tbody>
{% for r in results %}
<tr>
<td>{{ r.text }}</td>
<td>
{% if r.sentiment.lower().startswith("positive") %}
<span class="badge bg-success">{{ r.sentiment }}</span>
{% elif r.sentiment.lower().startswith("negative") %}
<span class="badge bg-danger">{{ r.sentiment }}</span>
{% else %}
<span class="badge bg-secondary">{{ r.sentiment }}</span>
{% endif %}
</td>
<td>
<span>{{ r.confidence }}%</span>
<div class="confidence-bar">
<div class="confidence-fill {{ r.sentiment.lower() }}" style="width: {{ r.confidence }}%"></div>
</div>
</td>
<td>
<i class="fas fa-robot text-muted"></i> {{ r.chosen_model }}
</td>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</div>
{% endif %}
<!-- Back Button -->
<div class="text-center mt-4">
<a href="{{ url_for('single_review') }}" class="btn btn-outline-secondary">
<i class="fas fa-arrow-left"></i> Back to Single Prediction
</a>
</div>
</div>
</div>
<script>
const fileInput = document.getElementById("fileInput");
const fileName = document.getElementById("fileName");
const errorMessage = document.getElementById("errorMessage");
fileInput.addEventListener("change", () => {
const file = fileInput.files[0];
if (file && file.name.endsWith(".csv")) {
fileName.textContent = file.name;
fileName.style.display = "block";
errorMessage.style.display = "none";
} else {
fileInput.value = "";
fileName.style.display = "none";
errorMessage.style.display = "block";
}
});
</script>
</body>
</html>
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