{% extends "base.html" %}

{% block title %}Import Data - Timetable Generator{% endblock %}

{% block content %}
<div class="row justify-content-center">
    <div class="col-md-8">
        <div class="card">
            <div class="card-header">
                <h3 class="card-title mb-0">
                    <i class="fas fa-upload me-2"></i>Import Timetable Data
                </h3>
            </div>
            <div class="card-body">
                <div class="alert alert-info">
                    <i class="fas fa-info-circle me-2"></i>
                    <strong>Import your saved data:</strong> Upload a JSON file previously exported from this application to restore all your teachers, subjects, sections, and saved timetables.
                </div>
                
                <form method="POST" enctype="multipart/form-data" class="mb-4">
                    <div class="mb-3">
                        <label for="file" class="form-label">Select JSON File</label>
                        <input type="file" class="form-control" id="file" name="file" accept=".json" required>
                        <div class="form-text">Only JSON files exported from this application are supported.</div>
                    </div>
                    
                    <div class="d-grid gap-2 d-md-flex justify-content-md-start">
                        <button type="submit" class="btn btn-primary">
                            <i class="fas fa-upload me-1"></i>Import Data
                        </button>
                        <a href="{{ url_for('index') }}" class="btn btn-secondary">
                            <i class="fas fa-arrow-left me-1"></i>Cancel
                        </a>
                    </div>
                </form>
                
                <div class="alert alert-warning">
                    <i class="fas fa-exclamation-triangle me-2"></i>
                    <strong>Warning:</strong> Importing will replace all current data in your session. Make sure to export your current data first if you want to keep it.
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}