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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>Handwritten Archive Document Digitalization System</title>
    <!-- Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet">
    <!-- Font Awesome -->
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <!-- Custom CSS -->
    <link rel="stylesheet" href="/static/styles.css">
</head>
<body>
    <!-- Login Modal -->
    <div id="loginModal" class="modal fade show" style="display: block; background: rgba(0,0,0,0.8);">
        <div class="modal-dialog modal-dialog-centered">
            <div class="modal-content shadow-lg">
                <div class="modal-header bg-primary text-white">
                    <h4 class="modal-title"><i class="fas fa-lock me-2"></i>Login Required</h4>
                </div>
                <div class="modal-body p-4">
                    <form id="loginForm">
                        <div class="mb-3">
                            <label for="username" class="form-label">Username</label>
                            <div class="input-group">
                                <span class="input-group-text"><i class="fas fa-user"></i></span>
                                <input type="text" id="username" class="form-control" required value="admin" placeholder="Enter username">
                            </div>
                        </div>
                        <div class="mb-3">
                            <label for="password" class="form-label">Password</label>
                            <div class="input-group">
                                <span class="input-group-text"><i class="fas fa-lock"></i></span>
                                <input type="password" id="password" class="form-control" required value="admin123" placeholder="Enter password">
                            </div>
                        </div>
                        <button type="submit" class="btn btn-primary w-100">
                            <i class="fas fa-sign-in-alt me-2"></i>Login
                        </button>
                    </form>
                    <div id="loginResult" class="mt-3"></div>
                </div>
            </div>
        </div>
    </div>

    <!-- Main Application -->
    <div id="mainApp" style="display: none;">
        <!-- Top Navigation -->
        <nav class="navbar navbar-expand-lg navbar-dark bg-primary fixed-top">
            <div class="container-fluid">
                <button class="btn btn-primary me-3" type="button" id="sidebarToggle">
                    <i class="fas fa-bars"></i>
                </button>
                <a class="navbar-brand" href="#">
                    <i class="fas fa-archive me-2"></i>Archive Digitalization System
                </a>
                <div class="navbar-nav ms-auto">
                    <span class="navbar-text me-3" id="welcomeUser"></span>
                    <button class="btn btn-outline-light btn-sm" onclick="logout()">
                        <i class="fas fa-sign-out-alt me-1"></i>Logout
                    </button>
                </div>
            </div>
        </nav>

        <!-- Sidebar -->
        <nav id="sidebar" class="sidebar">
            <div class="sidebar-header">
                <h4><i class="fas fa-archive me-2"></i>Archive System</h4>
            </div>
            
            <!-- Dashboard Stats in Sidebar -->
            <div class="sidebar-stats" id="sidebarStats">
                <!-- Stats will be loaded here -->
            </div>

            <ul class="sidebar-nav">
                <li class="nav-item">
                    <a href="#" class="nav-link active" onclick="showTab('dashboard')">
                        <i class="fas fa-chart-dashboard me-2"></i>Dashboard
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link" onclick="showTab('upload')">
                        <i class="fas fa-upload me-2"></i>Upload Categories
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link" onclick="showTab('classify')">
                        <i class="fas fa-search me-2"></i>Classify Documents
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link" onclick="showTab('browse')">
                        <i class="fas fa-folder-open me-2"></i>Browse Archive
                    </a>
                </li>
                <li class="nav-item">
                    <a href="#" class="nav-link" onclick="showTab('ocr')">
                        <i class="fas fa-eye me-2"></i>OCR Text
                    </a>
                </li>
            </ul>

            <!-- Category List in Sidebar -->
            <div class="sidebar-section">
                <h6 class="sidebar-heading">Categories</h6>
                <div id="sidebarCategories">
                    <!-- Categories will be loaded here -->
                </div>
            </div>
        </nav>

        <!-- Main Content -->
        <main class="main-content">
            <!-- Dashboard Tab -->
            <div id="dashboard" class="tab-content active">
                <div class="content-header">
                    <h2><i class="fas fa-chart-dashboard me-2"></i>Dashboard</h2>
                    <p class="text-muted">Overview of your document archive system</p>
                </div>

                <!-- Stats Cards -->
                <div class="row mb-4" id="dashboardStats">
                    <!-- Stats will be loaded here -->
                </div>

                <!-- Category Overview -->
                <div class="row">
                    <div class="col-md-8">
                        <div class="card">
                            <div class="card-header">
                                <h5><i class="fas fa-chart-bar me-2"></i>Document Distribution</h5>
                            </div>
                            <div class="card-body">
                                <canvas id="categoryChart" width="400" height="200"></canvas>
                            </div>
                        </div>
                    </div>
                    <div class="col-md-4">
                        <div class="card">
                            <div class="card-header">
                                <h5><i class="fas fa-clock me-2"></i>Recent Activity</h5>
                            </div>
                            <div class="card-body">
                                <div id="recentActivity">
                                    <!-- Recent activity will be loaded here -->
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Upload Categories Tab -->
            <div id="upload" class="tab-content">
                <div class="content-header">
                    <h2><i class="fas fa-tags me-2"></i>Upload Document Categories</h2>
                    <p class="text-muted">Train the system by uploading sample documents for each category</p>
                </div>

                <div class="card">
                    <div class="card-body">
                        <form id="uploadForm" class="row g-3">
                            <div class="col-md-6">
                                <label for="categoryFile" class="form-label">Document File (Image or PDF)</label>
                                <div class="file-upload border rounded p-4 text-center" id="categoryUpload">
                                    <i class="fas fa-cloud-upload-alt fa-3x text-primary mb-3"></i>
                                    <p class="mb-0">Click to select or drag & drop files here</p>
                                    <input type="file" id="categoryFile" accept="image/*,.pdf" class="d-none">
                                </div>
                            </div>
                            <div class="col-md-6">
                                <label for="categoryLabel" class="form-label">Category Label</label>
                                <input type="text" id="categoryLabel" class="form-control" placeholder="e.g., birth_certificate, passport, diploma">
                                <div class="form-text">Use descriptive names without spaces</div>
                                
                                <button type="submit" class="btn btn-primary mt-3">
                                    <i class="fas fa-plus me-2"></i>Add Category
                                </button>
                            </div>
                        </form>
                        
                        <div id="uploadResult" class="mt-3"></div>
                    </div>
                </div>
            </div>

            <!-- Classify Documents Tab -->
            <div id="classify" class="tab-content">
                <div class="card">
                    <div class="card-header bg-success text-white">
                        <h4><i class="fas fa-robot me-2"></i>Classify & Store Documents</h4>
                    </div>
                    <div class="card-body">
                        <p class="text-muted">Upload documents to automatically classify and store them in the archive (min. 35% confidence).</p>
                        
                        <form id="classifyForm" class="row g-3">
                            <div class="col-12">
                                <label for="classifyFile" class="form-label">Document to Classify</label>
                                <div class="file-upload border rounded p-4 text-center" id="classifyUpload">
                                    <i class="fas fa-file fa-3x text-success mb-3"></i>
                                    <p class="mb-0">Click to select or drag & drop files here</p>
                                    <input type="file" id="classifyFile" accept="image/*,.pdf" class="d-none">
                                </div>
                            </div>
                            <div class="col-12">
                                <button type="submit" class="btn btn-success">
                                    <i class="fas fa-search me-2"></i>Classify Document
                                </button>
                            </div>
                        </form>
                        
                        <div id="classifyResult" class="mt-3"></div>
                    </div>
                </div>
            </div>

            <!-- Browse Archive Tab -->
            <div id="browse" class="tab-content">
                <div class="content-header">
                    <h2><i class="fas fa-archive me-2"></i>Browse Document Archive</h2>
                    <p class="text-muted">Browse and search through your classified documents by category</p>
                </div>

                <!-- Category Filters -->
                <div class="card mb-4">
                    <div class="card-body">
                        <div class="d-flex justify-content-between align-items-center mb-3">
                            <h5 class="mb-0">Filter by Category</h5>
                            <div class="btn-group" role="group">
                                <button type="button" class="btn btn-outline-primary btn-sm" onclick="toggleView('grid')">
                                    <i class="fas fa-th-large"></i> Grid
                                </button>
                                <button type="button" class="btn btn-outline-primary btn-sm active" onclick="toggleView('list')">
                                    <i class="fas fa-list"></i> List
                                </button>
                            </div>
                        </div>
                        <div id="categoryButtons" class="category-buttons">
                            <!-- Category buttons will be loaded here -->
                        </div>
                    </div>
                </div>

                <!-- Documents Container -->
                <div id="documentsContainer">
                    <!-- Documents will be loaded here -->
                </div>
            </div>

            <!-- OCR Text Tab -->
            <div id="ocr" class="tab-content">
                <div class="card">
                    <div class="card-header bg-warning text-dark">
                        <h4><i class="fas fa-eye me-2"></i>Advanced OCR Text Extraction</h4>
                    </div>
                    <div class="card-body">
                        <div class="alert alert-info" role="alert">
                            <i class="fas fa-info-circle me-2"></i>
                            <strong>Enhanced OCR Features:</strong> Our advanced  model supports table extraction (HTML), LaTeX equations, watermark detection, signature recognition, and checkbox handling.
                        </div>
                        <p class="text-muted">Extract text from documents using advanced Optical Character Recognition with AI-powered document understanding.</p>
                        
                        <form id="ocrForm" class="row g-3">
                            <div class="col-12">
                                <label for="ocrFile" class="form-label">Document File</label>
                                <div class="file-upload border rounded p-4 text-center" id="ocrUpload">
                                    <i class="fas fa-file-alt fa-3x text-warning mb-3"></i>
                                    <p class="mb-0">Click to select or drag & drop files here</p>
                                    <small class="text-muted">Supports: PDF, JPEG, PNG, TIFF</small>
                                    <input type="file" id="ocrFile" accept="image/*,.pdf" class="d-none">
                                </div>
                            </div>
                            <div class="col-12">
                                <button type="submit" class="btn btn-warning">
                                    <i class="fas fa-robot me-2"></i>Extract Text with AI OCR
                                </button>
                            </div>
                        </form>
                        
                        <div id="ocrResult" class="mt-3"></div>
                    </div>
                </div>
            </div>
        </main>
    </div>

    <!-- Document Preview Modal -->
    <div class="modal fade" id="documentModal" tabindex="-1">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header">
                    <h5 class="modal-title">Document Preview</h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <div class="modal-body text-center">
                    <img id="documentPreview" class="img-fluid mb-3" style="max-height: 400px;">
                    <div id="documentDetails"></div>
                </div>
            </div>
        </div>
    </div>

    <!-- Bootstrap JS -->
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
    <!-- Chart.js -->
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <!-- Custom JS -->
    <script src="/static/script.js"></script>
</body>
</html>