<?php
/**
 * app/modules/floor_infrastructure/edit.php
 *
 * Formular zum Anlegen/Bearbeiten von Patchpanels und Wandbuchsen
 */

$type = $_GET['type'] ?? 'patchpanel';
$id = (int)($_GET['id'] ?? 0);

$locations = $sql->get("SELECT id, name FROM locations ORDER BY name", "", []);
$buildings = $sql->get("SELECT id, name, location_id FROM buildings ORDER BY name", "", []);
$floors = $sql->get(
    "SELECT f.*, b.name AS building_name, b.location_id, l.name AS location_name
     FROM floors f
     LEFT JOIN buildings b ON b.id = f.building_id
     LEFT JOIN locations l ON l.id = b.location_id
     ORDER BY l.name, b.name, f.level, f.name",
    "",
    []
);
$rooms = $sql->get(
    "SELECT r.id, r.name, r.floor_id, r.x, r.y, r.width, r.height, r.polygon_points,
            f.name AS floor_name, f.svg_path, b.id AS building_id, l.id AS location_id
     FROM rooms r
     LEFT JOIN floors f ON f.id = r.floor_id
     LEFT JOIN buildings b ON b.id = f.building_id
     LEFT JOIN locations l ON l.id = b.location_id
     ORDER BY l.name, b.name, f.level, f.name, r.name",
    "",
    []
);

$locationMap = [];
foreach ($locations as $location) {
    $locationMap[$location['id']] = $location['name'];
}

foreach ($floors as &$floor) {
    $paths = trim((string)($floor['svg_path'] ?? ''));
    $floor['svg_url'] = $paths !== '' ? '/' . ltrim($paths, '/\\') : '';
}
unset($floor);

foreach ($rooms as &$room) {
    $roomPath = trim((string)($room['svg_path'] ?? ''));
    $room['floor_svg_url'] = $roomPath !== '' ? '/' . ltrim($roomPath, '/\\') : '';
}
unset($room);

$floorIndex = [];
foreach ($floors as $floor) {
    $floorIndex[$floor['id']] = $floor;
}

$panel = null;
$outlet = null;
$pageTitle = $type === 'outlet' ? 'Wandbuchse bearbeiten' : 'Patchpanel bearbeiten';

if ($type === 'patchpanel' && $id > 0) {
    $panel = $sql->single(
        "SELECT * FROM floor_patchpanels WHERE id = ?",
        "i",
        [$id]
    );
    if ($panel) {
        $pageTitle = "Patchpanel bearbeiten: " . htmlspecialchars($panel['name']);
    }
}

if ($type === 'outlet' && $id > 0) {
    $outlet = $sql->single(
        "SELECT * FROM network_outlets WHERE id = ?",
        "i",
        [$id]
    );
    if ($outlet) {
        $pageTitle = "Wandbuchse bearbeiten: " . htmlspecialchars($outlet['name']);
    }
}

$panel = $panel ?? [];
$outlet = $outlet ?? [];

$selectedLocationId = 0;
$selectedBuildingId = 0;
$selectedFloorId = 0;
if ($type === 'patchpanel') {
    $selectedFloorId = (int)($panel['floor_id'] ?? 0);
    if ($selectedFloorId && isset($floorIndex[$selectedFloorId])) {
        $selectedBuildingId = (int)($floorIndex[$selectedFloorId]['building_id'] ?? 0);
        $selectedLocationId = (int)($floorIndex[$selectedFloorId]['location_id'] ?? 0);
    }
}

$defaultPanelSize = ['width' => 20, 'height' => 5];
$defaultOutletSize = 10;
$showPanelPlacementFields = $type === 'patchpanel' && $selectedFloorId > 0;

if ($type === 'patchpanel') {
    $panel['width'] = $defaultPanelSize['width'];
    $panel['height'] = $defaultPanelSize['height'];
    $panel['pos_x'] = $panel['pos_x'] ?? 30;
    $panel['pos_y'] = $panel['pos_y'] ?? 30;
} else {
    $outlet['x'] = $outlet['x'] ?? 30;
    $outlet['y'] = $outlet['y'] ?? 30;
}

$markerWidth = $type === 'patchpanel' ? $panel['width'] : $defaultOutletSize;
$markerHeight = $type === 'patchpanel' ? $panel['height'] : $defaultOutletSize;

$mapPatchPanels = $sql->get(
    "SELECT id, floor_id, name, pos_x, pos_y, width, height
     FROM floor_patchpanels
     ORDER BY floor_id, name",
    "",
    []
);
$mapOutlets = $sql->get(
    "SELECT o.id, r.floor_id, o.name, o.x, o.y
     FROM network_outlets o
     JOIN rooms r ON r.id = o.room_id
     ORDER BY r.floor_id, o.name",
    "",
    []
);

$patchpanelPortOptions = $sql->get(
    "SELECT
        fpp.id,
        fpp.name,
        fp.name AS patchpanel_name,
        fp.floor_id,
        f.name AS floor_name,
        EXISTS(
            SELECT 1
            FROM connections c
            WHERE
                ((c.port_a_type = 'patchpanel' OR c.port_a_type = 'floor_patchpanel_ports') AND c.port_a_id = fpp.id)
                OR
                ((c.port_b_type = 'patchpanel' OR c.port_b_type = 'floor_patchpanel_ports') AND c.port_b_id = fpp.id)
        ) AS is_occupied
     FROM floor_patchpanel_ports fpp
     JOIN floor_patchpanels fp ON fp.id = fpp.patchpanel_id
     LEFT JOIN floors f ON f.id = fp.floor_id
     ORDER BY f.name, fp.name, fpp.name",
    "",
    []
);

$selectedBindPatchpanelPortId = 0;
if ($type === 'outlet' && $id > 0) {
    $selectedBindPatchpanelPortId = (int)($sql->single(
        "SELECT
            CASE
                WHEN (c.port_a_type = 'patchpanel' OR c.port_a_type = 'floor_patchpanel_ports') THEN c.port_a_id
                WHEN (c.port_b_type = 'patchpanel' OR c.port_b_type = 'floor_patchpanel_ports') THEN c.port_b_id
                ELSE 0
            END AS patchpanel_port_id
         FROM connections c
         JOIN network_outlet_ports nop
           ON (
                ((c.port_a_type = 'outlet' OR c.port_a_type = 'network_outlet_ports') AND c.port_a_id = nop.id)
                OR
                ((c.port_b_type = 'outlet' OR c.port_b_type = 'network_outlet_ports') AND c.port_b_id = nop.id)
              )
         WHERE nop.outlet_id = ?
           AND (
                c.port_a_type = 'patchpanel' OR c.port_a_type = 'floor_patchpanel_ports'
                OR
                c.port_b_type = 'patchpanel' OR c.port_b_type = 'floor_patchpanel_ports'
           )
         ORDER BY c.id
         LIMIT 1",
        "i",
        [$id]
    )['patchpanel_port_id'] ?? 0);
}
?>

<div class="floor-infra-edit">
    <link rel="stylesheet" href="/assets/css/floor-infrastructure-edit.css">
    <h1><?php echo $pageTitle; ?></h1>

    <form method="post" action="?module=floor_infrastructure&action=save" class="infra-edit-form">
        <input type="hidden" name="type" value="<?php echo htmlspecialchars($type); ?>">
        <input type="hidden" name="id" value="<?php echo $type === 'patchpanel' ? ($panel['id'] ?? $id) : ($outlet['id'] ?? $id); ?>">

        <?php if ($type === 'patchpanel'): ?>
            <div class="form-group">
                <label>Name</label>
                <input type="text" name="name" value="<?php echo htmlspecialchars($panel['name'] ?? ''); ?>" required>
            </div>

            <div class="form-grid">
                <div class="form-group">
                    <label>Location</label>
                    <select id="panel-location-select">
                        <option value="">- Location wählen -</option>
                        <?php foreach ($locations as $location): ?>
                            <option value="<?php echo $location['id']; ?>" <?php echo $selectedLocationId === $location['id'] ? 'selected' : ''; ?>>
                                <?php echo htmlspecialchars($location['name']); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>
                <div class="form-group">
                    <label>Gebäude</label>
                    <select id="panel-building-select">
                        <option value="">- Gebäude wählen -</option>
                        <?php foreach ($buildings as $building): ?>
                            <?php $buildingLocation = $locationMap[$building['location_id']] ?? ''; ?>
                            <option value="<?php echo $building['id']; ?>"
                                    data-location-id="<?php echo $building['location_id'] ?? 0; ?>"
                                    <?php echo $selectedBuildingId === $building['id'] ? 'selected' : ''; ?>>
                                <?php echo htmlspecialchars($building['name'] . ($buildingLocation ? ' · ' . $buildingLocation : '')); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>
                <div class="form-group">
                    <label>Stockwerk</label>
                    <select id="panel-floor-select" name="floor_id" required>
                        <option value="">- Stockwerk wählen -</option>
                        <?php foreach ($floors as $floor): ?>
                            <option value="<?php echo $floor['id']; ?>"
                                    data-building-id="<?php echo $floor['building_id'] ?? 0; ?>"
                                    data-location-id="<?php echo $floor['location_id'] ?? 0; ?>"
                                    data-svg-url="<?php echo htmlspecialchars($floor['svg_url']); ?>"
                                    <?php echo $selectedFloorId === $floor['id'] ? 'selected' : ''; ?>>
                                <?php echo htmlspecialchars($floor['name']); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>
            </div>

            <input type="hidden" name="pos_x" value="<?php echo (int)($panel['pos_x'] ?? 30); ?>">
            <input type="hidden" name="pos_y" value="<?php echo (int)($panel['pos_y'] ?? 30); ?>">
            <input type="hidden" name="width" value="<?php echo (int)$panel['width']; ?>">
            <input type="hidden" name="height" value="<?php echo (int)$panel['height']; ?>">

            <div id="panel-placement-fields" class="form-grid" <?php echo $showPanelPlacementFields ? '' : 'hidden'; ?>>
                <p class="info">Position, Breite und Höhe werden über die Karte gesetzt.</p>
            </div>

            <div id="panel-floor-plan-group" class="form-group" <?php echo $showPanelPlacementFields ? '' : 'hidden'; ?>>
                <label>Stockwerkskarte</label>
                <div class="floor-plan-block">
                    <div id="floor-plan-canvas" class="floor-plan-canvas"
                         data-marker-width="<?php echo $markerWidth; ?>"
                         data-marker-height="<?php echo $markerHeight; ?>"
                         data-marker-type="patchpanel"
                         data-x-field="pos_x"
                         data-y-field="pos_y"
                         data-active-id="<?php echo (int)($panel['id'] ?? 0); ?>"
                         data-reference-panels="<?php echo htmlspecialchars(json_encode($mapPatchPanels, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), ENT_QUOTES, 'UTF-8'); ?>"
                         data-reference-outlets="<?php echo htmlspecialchars(json_encode($mapOutlets, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), ENT_QUOTES, 'UTF-8'); ?>">
                        <svg id="floor-plan-overlay" class="floor-plan-overlay" viewBox="0 0 1 1" preserveAspectRatio="xMidYMid meet" aria-hidden="true"></svg>
                    </div>
                    <p class="floor-plan-hint">Nur das aktuell bearbeitete Patchpanel ist verschiebbar. Andere Objekte werden als Referenz halbtransparent angezeigt. Neue Objekte starten bei Position 30 x 30. Zoom mit Mausrad, verschieben mit Shift + Drag.</p>
                    <p class="floor-plan-position">Koordinate: <span id="floor-plan-position"></span></p>
                </div>
            </div>

            <div class="form-group">
                <label>Port-Anzahl</label>
                <input type="number" name="port_count" value="<?php echo $panel['port_count'] ?? 0; ?>" min="0">
            </div>

            <p id="panel-floor-missing-hint" class="info" <?php echo $showPanelPlacementFields ? 'hidden' : ''; ?>>
                Position, Größe und Stockwerkskarte werden erst angezeigt, sobald ein Stockwerk ausgewählt ist.
            </p>

            <div class="form-group">
                <label>Kommentar</label>
                <textarea name="comment"><?php echo htmlspecialchars($panel['comment'] ?? ''); ?></textarea>
            </div>

            <p class="info">Position und Größe folgen dem Drag-&-Drop auf dem Plan, damit alle Patchpanels einheitlich bleiben.</p>

        <?php else: ?>
            <div class="form-group">
                <label>Name</label>
                <input type="text" name="name" value="<?php echo htmlspecialchars($outlet['name'] ?? ''); ?>" required>
            </div>

            <div class="form-group">
                <label>Raum</label>
                <select name="room_id" id="outlet-room-select" required>
                    <option value="">- Raum wählen -</option>
                    <?php foreach ($rooms as $room): ?>
                        <option value="<?php echo $room['id']; ?>"
                                data-floor-id="<?php echo $room['floor_id'] ?? 0; ?>"
                                data-floor-svg-url="<?php echo htmlspecialchars($room['floor_svg_url']); ?>"
                                data-room-x="<?php echo (int)($room['x'] ?? 0); ?>"
                                data-room-y="<?php echo (int)($room['y'] ?? 0); ?>"
                                data-room-width="<?php echo (int)($room['width'] ?? 0); ?>"
                                data-room-height="<?php echo (int)($room['height'] ?? 0); ?>"
                                data-room-polygon="<?php echo htmlspecialchars((string)($room['polygon_points'] ?? ''), ENT_QUOTES, 'UTF-8'); ?>"
                                <?php echo ($outlet['room_id'] ?? 0) === $room['id'] ? 'selected' : ''; ?>>
                            <?php echo htmlspecialchars($room['floor_name'] . ' / ' . $room['name']); ?>
                        </option>
                    <?php endforeach; ?>
                </select>
            </div>

            <div class="form-group">
                <label for="outlet-bind-patchpanel-port-id">Direkt mit Patchpanel-Port verbinden</label>
                <select name="bind_patchpanel_port_id" id="outlet-bind-patchpanel-port-id">
                    <option value="">- Kein direkter Link -</option>
                    <?php foreach ($patchpanelPortOptions as $portOption): ?>
                        <?php
                            $portId = (int)($portOption['id'] ?? 0);
                            $isSelected = $selectedBindPatchpanelPortId === $portId;
                            $isOccupied = ((int)($portOption['is_occupied'] ?? 0) === 1);
                            $isDisabled = $isOccupied && !$isSelected;
                            $labelParts = array_filter([
                                (string)($portOption['floor_name'] ?? ''),
                                (string)($portOption['patchpanel_name'] ?? ''),
                                (string)($portOption['name'] ?? ''),
                            ]);
                            $label = implode(' / ', $labelParts);
                            if ($isOccupied && !$isSelected) {
                                $label .= ' (belegt)';
                            }
                        ?>
                        <option
                            value="<?php echo $portId; ?>"
                            data-floor-id="<?php echo (int)($portOption['floor_id'] ?? 0); ?>"
                            <?php echo $isSelected ? 'selected' : ''; ?>
                            <?php echo $isDisabled ? 'disabled' : ''; ?>>
                            <?php echo htmlspecialchars($label); ?>
                        </option>
                    <?php endforeach; ?>
                </select>
                <small>Nur Ports vom gewaehlten Stockwerk sind auswaehlbar. Beim Speichern wird die Verbindung automatisch erstellt.</small>
            </div>

            <input type="hidden" name="x" value="<?php echo (int)($outlet['x'] ?? 30); ?>">
            <input type="hidden" name="y" value="<?php echo (int)($outlet['y'] ?? 30); ?>">

            <div class="form-group">
                <label>Stockwerkskarte</label>
                <div class="floor-plan-block">
                    <div id="floor-plan-canvas" class="floor-plan-canvas"
                         data-marker-width="<?php echo $markerWidth; ?>"
                         data-marker-height="<?php echo $markerHeight; ?>"
                         data-marker-type="outlet"
                         data-x-field="x"
                         data-y-field="y"
                         data-active-id="<?php echo (int)($outlet['id'] ?? 0); ?>"
                         data-reference-panels="<?php echo htmlspecialchars(json_encode($mapPatchPanels, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), ENT_QUOTES, 'UTF-8'); ?>"
                         data-reference-outlets="<?php echo htmlspecialchars(json_encode($mapOutlets, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES), ENT_QUOTES, 'UTF-8'); ?>">
                        <svg id="floor-plan-overlay" class="floor-plan-overlay" viewBox="0 0 1 1" preserveAspectRatio="xMidYMid meet" aria-hidden="true"></svg>
                    </div>
                    <p class="floor-plan-hint">Nur die aktuell bearbeitete Wandbuchse ist verschiebbar. Blau = Patchpanel, Gruen = Dosen-Referenz, Orange = gewaehlter Raum. Netzwerkdosen sind immer 10 x 10. Zoom mit Mausrad, verschieben mit Shift + Drag.</p>
                    <p class="floor-plan-position">Koordinate: <span id="floor-plan-position"></span></p>
                </div>
            </div>

            <div class="form-group">
                <label>Kommentar</label>
                <textarea name="comment"><?php echo htmlspecialchars($outlet['comment'] ?? ''); ?></textarea>
            </div>

            <p class="info">Wandbuchsen bleiben quadratisch, ihre Position wird über die Karte festgelegt.</p>
        <?php endif; ?>

        <div class="form-actions">
            <button type="submit" class="button button-primary">Speichern</button>
            <a href="?module=floor_infrastructure&action=list" class="button">Abbrechen</a>
        </div>
    </form>
</div>

<script src="/assets/js/floor-infrastructure-edit.js" defer></script>