{% extends "base.html" %}
{% load static %}

{% block content %}
<div class="container-fluid py-4 py-md-5 px-3 px-md-4">
    <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center mb-4 mb-md-5 gap-3">
        <div>
            <h1 class="h2 fw-bold text-dark mb-1">View Signs</h1>
            <p class="text-muted mb-0">View households that already have a yard sign.</p>
        </div>
        <div class="d-flex flex-column flex-sm-row gap-2">
            <button type="button" class="btn btn-outline-danger shadow-sm py-1 px-4 flex-grow-1" data-bs-toggle="modal" data-bs-target="#mapModal">
                <i class="bi bi-map-fill me-1"></i> View Map
            </button>
        </div>
    </div>

    <!-- Filters Card -->
    <div class="card border-0 shadow-sm rounded-4 mb-4 mb-md-5 overflow-hidden">
        <div class="card-header bg-white py-3 border-0">
            <h5 class="card-title mb-0 fw-bold text-danger">Filters</h5>
        </div>
        <div class="card-body p-3 p-md-4">
            <form method="GET" action="." class="row g-3 align-items-end">
                <div class="col-12 col-md-2">
                    <label class="form-label small fw-bold text-uppercase text-muted">District</label>
                    <input type="text" name="district" class="form-control rounded-3" placeholder="Filter by district..." value="{{ district_filter }}">
                </div>
                <div class="col-12 col-md-2">
                    <label class="form-label small fw-bold text-uppercase text-muted">Neighborhood</label>
                    <input type="text" name="neighborhood" class="form-control rounded-3" placeholder="Filter by neighborhood..." value="{{ neighborhood_filter }}">
                </div>
                <div class="col-12 col-md-2">
                    <label class="form-label small fw-bold text-uppercase text-muted">City</label>
                    <input type="text" name="city" class="form-control rounded-3" placeholder="Filter by city..." value="{{ city_filter }}">
                </div>
                <div class="col-12 col-md-2">
                    <label class="form-label small fw-bold text-uppercase text-muted">Sign Type</label>
                    <select name="sign_type" class="form-select rounded-3">
                        <option value="">All Types</option>
                        <option value="yard" {% if sign_type_filter == "yard" %}selected{% endif %}>Standard Yard Sign</option>
                        <option value="large" {% if sign_type_filter == "large" %}selected{% endif %}>Large Sign</option>
                    </select>
                </div>
                <div class="col-12 col-md-2">
                    <label class="form-label small fw-bold text-uppercase text-muted">Address Search</label>
                    <input type="text" name="address" class="form-control rounded-3" placeholder="Street address..." value="{{ address_filter }}">
                </div>
                <div class="col-12 col-md-2 d-flex gap-2">
                    <button type="submit" class="btn btn-danger w-100 rounded-3">Filter</button>
                    <a href="." class="btn btn-light w-100 rounded-3">Reset</a>
                </div>
            </form>
        </div>
    </div>

    <!-- Households List -->
    <div class="card border-0 shadow-sm rounded-4 overflow-hidden">
        <div class="card-header bg-white py-3 border-bottom d-flex flex-column flex-sm-row justify-content-between align-items-sm-center gap-2">
            <h5 class="card-title mb-0 fw-bold text-dark">Households with Signs</h5>
            <span class="badge bg-danger-subtle text-danger px-3 py-2 rounded-pill w-auto align-self-start align-self-sm-center">
                {{ households.paginator.count }} Households Found
            </span>
        </div>
        <div class="table-responsive">
            <table class="table table-hover align-middle mb-0">
                <thead class="bg-light text-muted">
                    <tr>
                        <th class="ps-4 py-3 text-uppercase small ls-1">Household Address</th>
                        <th class="py-3 text-uppercase small ls-1">Voters with Sign</th>
                        <th class="py-3 text-uppercase small ls-1">Sign Type</th>
                        <th class="py-3 text-uppercase small ls-1">Voter Notes</th>
                        <th class="pe-4 py-3 text-uppercase small ls-1 d-none d-md-table-cell">Neighborhood</th>
                    </tr>
                </thead>
                <tbody>
                    {% for household in households %}
                    <tr>
                        <td class="ps-4 py-3">
                            <div class="fw-bold text-dark">{{ household.address_street }}</div>
                            <div class="small text-muted">{{ household.city }}, {{ household.state }} {{ household.zip_code }}</div>
                            <div class="d-md-none mt-1">
                                {% if household.neighborhood %}
                                <span class="badge border border-danger-subtle bg-danger-subtle text-danger fw-medium px-2 py-1 small rounded-3">
                                    {{ household.neighborhood }}
                                </span>
                                {% endif %}
                            </div>
                        </td>
                        <td>
                            <div class="d-flex flex-wrap gap-1">
                                {% for voter in household.voters_with_sign %}
                                <a href="{% url 'voter_detail' voter.id %}" class="badge bg-light text-danger border border-danger-subtle text-decoration-none hover-underline">
                                    {{ voter.first_name }} {{ voter.last_name }}
                                </a>
                                {% endfor %}
                            </div>
                        </td>
                        <td>
                            <span class="badge rounded-pill px-3 py-2 {% if household.has_large %}bg-warning-subtle text-warning border border-warning-subtle{% else %}bg-success-subtle text-success border border-success-subtle{% endif %} fw-semibold">
                                {{ household.sign_types_display }}
                            </span>
                        </td>
                        <td>
                            {% for voter in household.voters_with_sign %}
                                {% if voter.notes %}
                                    <div class="small mb-1"><span class="fw-bold text-dark small">{{ voter.first_name }}:</span> {{ voter.notes }}</div>
                                {% endif %}
                            {% endfor %}
                        </td>
                        <td class="pe-4 d-none d-md-table-cell">
                            {% if household.neighborhood %}
                            <span class="badge border border-danger-subtle bg-danger-subtle text-danger fw-medium px-2 py-1 small rounded-3">
                                {{ household.neighborhood }}
                            </span>
                            {% else %}
                            <span class="text-muted small">—</span>
                            {% endif %}
                        </td>
                    </tr>
                    {% empty %}
                    <tr>
                        <td colspan="5" class="text-center py-5 text-muted">
                            <i class="bi bi-info-circle me-1"></i> No records found with current filters.
                        </td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
        
        <!-- Pagination -->
        {% if households.has_other_pages %}
        <div class="card-footer bg-white py-4 border-0">
            <nav aria-label="Page navigation">
                <ul class="pagination justify-content-center mb-0 gap-2">
                    {% if households.has_previous %}
                    <li class="page-item">
                        <a class="page-link rounded-3 border-0 bg-light text-dark shadow-sm px-3" href="?page={{ households.previous_page_number }}&district={{ district_filter }}&neighborhood={{ neighborhood_filter }}&address={{ address_filter }}&city={{ city_filter }}&sign_type={{ sign_type_filter }}">
                            <i class="bi bi-chevron-left"></i>
                        </a>
                    </li>
                    {% endif %}

                    {% for i in households.paginator.page_range %}
                    {% if households.number == i %}
                    <li class="page-item active"><span class="page-link rounded-3 border-0 bg-danger text-white shadow-sm px-3">{{ i }}</span></li>
                    {% elif i > households.number|add:'-3' and i < households.number|add:'3' %}
                    <li class="page-item">
                        <a class="page-link rounded-3 border-0 bg-light text-dark shadow-sm px-3" href="?page={{ i }}&district={{ district_filter }}&neighborhood={{ neighborhood_filter }}&address={{ address_filter }}&city={{ city_filter }}&sign_type={{ sign_type_filter }}">
                            {{ i }}
                        </a>
                    </li>
                    {% endif %}
                    {% endfor %}

                    {% if households.has_next %}
                    <li class="page-item">
                        <a class="page-link rounded-3 border-0 bg-light text-dark shadow-sm px-3" href="?page={{ households.next_page_number }}&district={{ district_filter }}&neighborhood={{ neighborhood_filter }}&address={{ address_filter }}&city={{ city_filter }}&sign_type={{ sign_type_filter }}">
                            <i class="bi bi-chevron-right"></i>
                        </a>
                    </li>
                    {% endif %}
                </ul>
            </nav>
        </div>
        {% endif %}
    </div>
</div>

<!-- Map Modal -->
<div class="modal fade" id="mapModal" tabindex="-1" aria-labelledby="mapModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-xl modal-dialog-centered">
        <div class="modal-content border-0 rounded-4 overflow-hidden shadow-lg">
            <div class="modal-header bg-danger text-white py-3 border-0">
                <h5 class="modal-title fw-bold" id="mapModalLabel">Sign Locations Map</h5>
                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body p-0 position-relative">
                {% if map_limit_reached %}
                <div class="alert alert-warning border-0 rounded-0 mb-0 d-flex align-items-center" style="z-index: 1000;">
                    <i class="bi bi-exclamation-triangle-fill me-2"></i>
                    <div>
                        <strong>Map limit reached:</strong> Showing first 3,000 households. Please use filters to narrow down the results.
                    </div>
                </div>
                {% endif %}
                <div id="map" style="height: 600px; width: 100%;">
                    <div id="map-controls">
                        <button id="center-user" class="map-control-btn" title="Center on My Location">
                            <i class="bi bi-geo-alt-fill"></i>
                        </button>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<style>
    .ls-1 { letter-spacing: 0.05em; }
    .hover-underline:hover { text-decoration: underline !important; }
    .pagination .page-link:hover { background-color: #f8f9fa; }
    .form-control:focus, .form-select:focus {
        border-color: #dc3545;
        box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.1);
    }

    #map-controls {
        position: absolute;
        top: 10px;
        right: 10px;
        z-index: 5;
    }
    .map-control-btn {
        background-color: #fff;
        border: 2px solid #fff;
        border-radius: 3px;
        box-shadow: 0 2px 6px rgba(0,0,0,.3);
        cursor: pointer;
        margin-bottom: 22px;
        text-align: center;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #666;
    }
    .map-control-btn:hover {
        color: #333;
    }
</style>

<script>
    let map;
    let markers = [];
    let userLocationMarker;
    const mapData = {{ map_data_json|safe }};

    function showUserLocation(centerOnUser = false) {
        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition(function(position) {
                var pos = {
                    lat: position.coords.latitude,
                    lng: position.coords.longitude
                };

                if (userLocationMarker) {
                    userLocationMarker.setPosition(pos);
                } else {
                    userLocationMarker = new google.maps.Marker({
                        position: pos,
                        map: map,
                        title: 'Your Location',
                        icon: {
                            path: google.maps.SymbolPath.CIRCLE,
                            fillColor: '#4285F4',
                            fillOpacity: 1,
                            scale: 8,
                            strokeColor: 'white',
                            strokeWeight: 2
                        }
                    });
                }
                
                if (centerOnUser) {
                    map.setCenter(pos);
                    map.setZoom(15);
                }
            }, function(error) {
                console.warn("Geolocation failed: " + error.message);
            }, {
                enableHighAccuracy: true,
                timeout: 5000,
                maximumAge: 0
            });
        }
    }

    function initMap() {
        const center = { lat: 41.8781, lng: -87.6298 }; // Default to Chicago if no data
        map = new google.maps.Map(document.getElementById("map"), {
            zoom: 12,
            center: center,
            mapTypeControl: true,
            streetViewControl: true,
            fullscreenControl: true,
            styles: [
                {
                    "featureType": "poi",
                    "stylers": [{ "visibility": "off" }]
                }
            ]
        });

        const infoWindow = new google.maps.InfoWindow();
        const bounds = new google.maps.LatLngBounds();
        let hasPoints = false;

        mapData.forEach(point => {
            if (point.lat && point.lng) {
                // Color coding for existing signs: Green (Standard) vs Yellow (Large)
                const markerColor = point.is_large ? "#ffc107" : "#198754";
                const label = point.is_large ? "Large Sign" : "Yard Sign";

                const marker = new google.maps.Marker({
                    position: { lat: point.lat, lng: point.lng },
                    map: map,
                    title: point.address,
                    icon: {
                        path: google.maps.SymbolPath.CIRCLE,
                        fillColor: markerColor,
                        fillOpacity: 0.9,
                        strokeWeight: 1,
                        strokeColor: "#ffffff",
                        scale: 8
                    }
                });

                marker.addListener("click", () => {
                    let votersHtml = point.voters.map(v => 
                        `<a href="/voters/${v.id}/" class="text-danger text-decoration-none hover-underline fw-bold">${v.name}</a>`
                    ).join(', ');

                    const contentString = `
                        <div class="p-2">
                            <h6 class="fw-bold mb-1">${point.address}</h6>
                            <p class="small text-muted mb-2"><strong>${label}</strong></p>
                            <p class="small mb-0"><strong>Voters:</strong> ${votersHtml}</p>
                        </div>
                    `;
                    infoWindow.setContent(contentString);
                    infoWindow.open(map, marker);
                });

                markers.push(marker);
                bounds.extend(marker.getPosition());
                hasPoints = true;
            }
        });

        if (hasPoints) {
            map.fitBounds(bounds);
        }

        // Initial attempt to show user location
        showUserLocation();
        
        // Setup control button
        var centerBtn = document.getElementById('center-user');
        if (centerBtn) {
            centerBtn.addEventListener('click', function() {
                showUserLocation(true);
            });
        }
    }

    // Initialize map when modal is shown
    document.getElementById('mapModal').addEventListener('shown.bs.modal', function () {
        if (!map) {
            const script = document.createElement('script');
            script.src = `https://maps.googleapis.com/maps/api/js?key={{ GOOGLE_MAPS_API_KEY }}&callback=initMap`;
            script.async = true;
            document.head.appendChild(script);
        } else {
            google.maps.event.trigger(map, "resize");
            if (markers.length > 0) {
                var bounds = new google.maps.LatLngBounds();
                markers.forEach(function(marker) {
                    bounds.extend(marker.getPosition());
                });
                map.fitBounds(bounds);
            }
        }
    });
</script>
{% endblock %}