{% extends "base.html" %}
{% block title %}Import Warehouse Locations CSV{% endblock %}

{% block head %}
<style>
/* Table styling modeled after upload_orders.html */
table.locations-preview-table.scan-table {
    margin: 0 !important;
    border-spacing: 0 !important;
    border-collapse: collapse !important;
    width: 100% !important;
    table-layout: fixed !important;
    font-size: 11px !important;
}
table.locations-preview-table.scan-table thead th {
    height: 48px !important;
    min-height: 48px !important;
    max-height: 48px !important;
    vertical-align: middle !important;
    text-align: center !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    line-height: 1.3 !important;
    padding: 6px 3px !important;
    font-size: 11px !important;
    background-color: #e9ecef !important;
    font-weight: bold !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    overflow: visible !important;
    box-sizing: border-box !important;
    border: 1px solid #ddd !important;
    text-overflow: clip !important;
    position: relative !important;
}
table.locations-preview-table.scan-table tbody td {
    padding: 4px 2px !important;
    font-size: 10px !important;
    text-align: center !important;
    border: 1px solid #ddd !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    vertical-align: middle !important;
}
</style>
{% endblock %}

{% block content %}
<div class="scan-container">
    <!-- Upload Locations Card -->
    <div class="card scan-form-card" style="margin-bottom: 24px;">
        <h3>Import Warehouse Locations from CSV</h3>
        <form method="POST" enctype="multipart/form-data" class="form-centered" id="csv-upload-form">
            <label for="csv_file">Choose CSV file:</label>
            {% if not locations %}
                <input type="file" name="csv_file" accept=".csv" required><br>
                <button type="submit" class="btn">Upload & Review</button>
            {% else %}
                <label style="font-weight: bold;">Selected file: {{ session['csv_filename'] if session['csv_filename'] else 'Unknown' }}</label><br>
                <button type="button" class="btn" onclick="showPopupAndSubmit()">Upload to Locations Database</button>
            {% endif %}
        </form>
        <!-- Popup Modal -->
        <div id="popup-modal" class="popup" style="display:none; position:fixed; top:0; left:0; width:100vw; height:100vh; background:var(--app-overlay-bg, rgba(30,41,59,0.85)); z-index:9999; align-items:center; justify-content:center;">
            <div class="popup-content" style="margin:auto; padding:32px; border-radius:8px; box-shadow:0 2px 8px #333; min-width:320px; max-width:400px; text-align:center;">
                <h3 style="color:var(--app-label-text);">Saving locations to database...</h3>
            </div>
        </div>
        <script>
        function showPopupAndSubmit() {
            document.getElementById('popup-modal').style.display = 'flex';
            setTimeout(function() {
                var form = document.getElementById('csv-upload-form');
                var input = document.createElement('input');
                input.type = 'hidden';
                input.name = 'create_locations';
                input.value = '1';
                form.appendChild(input);
                form.submit();
            }, 500);
        }
        window.onload = function() {
            if (window.location.hash === '#saved') {
                document.getElementById('popup-modal').style.display = 'none';
            }
        }
        </script>
    </div>
    <!-- Preview Table Card -->
    <div class="card scan-table-card" style="margin-bottom: 24px; max-height: 480px; overflow-y: auto;">
        <h3>Preview Table</h3>
        <table class="scan-table locations-preview-table">
            <thead>
                <tr>
                    <th>Location Code</th>
                    <th>Size</th>
                    <th>Description</th>
                </tr>
            </thead>
            <tbody>
                {% if locations %}
                    {% for loc in locations %}
                    <tr>
                        <td>{{ loc[0] }}</td>
                        <td>{{ loc[1] }}</td>
                        <td>{{ loc[2] }}</td>
                    </tr>
                    {% endfor %}
                {% else %}
                    <tr><td colspan="3" style="text-align:center;">No CSV file uploaded yet.</td></tr>
                {% endif %}
            </tbody>
        </table>
    </div>
    {% if report %}
    <div class="card" style="margin-bottom: 24px;">
        <h4>Import Report</h4>
        <p>{{ report }}</p>
    </div>
    {% endif %}
</div>
{% endblock %}