<?php
/**
 * app/modules/floor_infrastructure/save.php
 *
 * Speichert Patchpanel- und Wandbuchsen-Einträge
 */

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

if ($type === 'patchpanel') {
    $fixedPanelWidth = 20;
    $fixedPanelHeight = 5;

    $name = trim($_POST['name'] ?? '');
    $floorId = (int)($_POST['floor_id'] ?? 0);
    $posX = (int)($_POST['pos_x'] ?? 0);
    $posY = (int)($_POST['pos_y'] ?? 0);
    $width = $fixedPanelWidth;
    $height = $fixedPanelHeight;
    $portCount = (int)($_POST['port_count'] ?? 0);
    $comment = trim($_POST['comment'] ?? '');
    $errors = [];

    if ($name === '') {
        $errors[] = 'Name ist erforderlich';
    }
    if ($floorId <= 0) {
        $errors[] = 'Stockwerk ist erforderlich';
    }
    if ($portCount < 0) {
        $errors[] = 'Port-Anzahl darf nicht negativ sein';
    }
    if (!empty($errors)) {
        $_SESSION['error'] = implode(', ', $errors);
        $_SESSION['validation_errors'] = $errors;
        $redirectUrl = $id > 0 ? "?module=floor_infrastructure&action=edit&type=patchpanel&id=$id" : "?module=floor_infrastructure&action=edit&type=patchpanel";
        header("Location: $redirectUrl");
        exit;
    }

    $panelId = $id;

    if ($id > 0) {
        $sql->set(
            "UPDATE floor_patchpanels SET name = ?, floor_id = ?, pos_x = ?, pos_y = ?, width = ?, height = ?, port_count = ?, comment = ? WHERE id = ?",
            "siiiiisii",
            [$name, $floorId, $posX, $posY, $width, $height, $portCount, $comment, $id]
        );
    } else {
        $panelId = (int)$sql->set(
            "INSERT INTO floor_patchpanels (name, floor_id, pos_x, pos_y, width, height, port_count, comment) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
            "siiiiiss",
            [$name, $floorId, $posX, $posY, $width, $height, $portCount, $comment],
            true
        );
    }

    if ($panelId > 0 && $portCount > 0) {
        $existingCount = (int)($sql->single(
            "SELECT COUNT(*) AS cnt FROM floor_patchpanel_ports WHERE patchpanel_id = ?",
            "i",
            [$panelId]
        )['cnt'] ?? 0);

        if ($existingCount < $portCount) {
            for ($i = $existingCount + 1; $i <= $portCount; $i++) {
                $sql->set(
                    "INSERT INTO floor_patchpanel_ports (patchpanel_id, name) VALUES (?, ?)",
                    "is",
                    [$panelId, 'Port ' . $i]
                );
            }
        }
    }
    $_SESSION['success'] = $id > 0 ? 'Patchpanel gespeichert' : 'Patchpanel erstellt';
} elseif ($type === 'outlet') {
    $name = trim($_POST['name'] ?? '');
    $roomId = (int)($_POST['room_id'] ?? 0);
    $x = (int)($_POST['x'] ?? 0);
    $y = (int)($_POST['y'] ?? 0);
    $comment = trim($_POST['comment'] ?? '');
    $bindPatchpanelPortId = (int)($_POST['bind_patchpanel_port_id'] ?? 0);
    $outletId = $id;
    $errors = [];

    if ($name === '') {
        $errors[] = 'Name ist erforderlich';
    }
    if ($roomId <= 0) {
        $errors[] = 'Raum ist erforderlich';
    }
    if (!empty($errors)) {
        $_SESSION['error'] = implode(', ', $errors);
        $_SESSION['validation_errors'] = $errors;
        $redirectUrl = $id > 0 ? "?module=floor_infrastructure&action=edit&type=outlet&id=$id" : "?module=floor_infrastructure&action=edit&type=outlet";
        header("Location: $redirectUrl");
        exit;
    }

    if ($id > 0) {
        $sql->set(
            "UPDATE network_outlets SET name = ?, room_id = ?, x = ?, y = ?, comment = ? WHERE id = ?",
            "siiisi",
            [$name, $roomId, $x, $y, $comment, $id]
        );
    } else {
        $outletId = (int)$sql->set(
            "INSERT INTO network_outlets (name, room_id, x, y, comment) VALUES (?, ?, ?, ?, ?)",
            "siiis",
            [$name, $roomId, $x, $y, $comment],
            true
        );
    }

    if ($outletId > 0) {
        $existingPortCount = (int)($sql->single(
            "SELECT COUNT(*) AS cnt FROM network_outlet_ports WHERE outlet_id = ?",
            "i",
            [$outletId]
        )['cnt'] ?? 0);

        if ($existingPortCount === 0) {
            $sql->set(
                "INSERT INTO network_outlet_ports (outlet_id, name) VALUES (?, 'Port 1')",
                "i",
                [$outletId]
            );
        }

        if ($bindPatchpanelPortId > 0) {
            $roomFloorId = (int)($sql->single(
                "SELECT floor_id FROM rooms WHERE id = ?",
                "i",
                [$roomId]
            )['floor_id'] ?? 0);

            $patchpanelPort = $sql->single(
                "SELECT
                    fpp.id,
                    fp.floor_id
                 FROM floor_patchpanel_ports fpp
                 JOIN floor_patchpanels fp ON fp.id = fpp.patchpanel_id
                 WHERE fpp.id = ?",
                "i",
                [$bindPatchpanelPortId]
            );

            if (!$patchpanelPort) {
                $_SESSION['error'] = 'Gewaehlter Patchpanel-Port existiert nicht';
                $_SESSION['validation_errors'] = ['Gewaehlter Patchpanel-Port existiert nicht'];
                header('Location: ?module=floor_infrastructure&action=edit&type=outlet&id=' . $outletId);
                exit;
            }

            if ($roomFloorId <= 0 || (int)$patchpanelPort['floor_id'] !== $roomFloorId) {
                $_SESSION['error'] = 'Patchpanel-Port und Raum muessen auf demselben Stockwerk liegen';
                $_SESSION['validation_errors'] = ['Patchpanel-Port und Raum muessen auf demselben Stockwerk liegen'];
                header('Location: ?module=floor_infrastructure&action=edit&type=outlet&id=' . $outletId);
                exit;
            }

            $outletPortId = (int)($sql->single(
                "SELECT id
                 FROM network_outlet_ports
                 WHERE outlet_id = ?
                 ORDER BY id
                 LIMIT 1",
                "i",
                [$outletId]
            )['id'] ?? 0);

            if ($outletPortId <= 0) {
                $_SESSION['error'] = 'Wandbuchsen-Port konnte nicht ermittelt werden';
                $_SESSION['validation_errors'] = ['Wandbuchsen-Port konnte nicht ermittelt werden'];
                header('Location: ?module=floor_infrastructure&action=edit&type=outlet&id=' . $outletId);
                exit;
            }

            $existingPatchpanelUsage = $sql->single(
                "SELECT
                    id,
                    port_a_type,
                    port_a_id,
                    port_b_type,
                    port_b_id
                 FROM connections
                 WHERE
                    ((port_a_type = 'patchpanel' OR port_a_type = 'floor_patchpanel_ports') AND port_a_id = ?)
                    OR
                    ((port_b_type = 'patchpanel' OR port_b_type = 'floor_patchpanel_ports') AND port_b_id = ?)
                 LIMIT 1",
                "ii",
                [$bindPatchpanelPortId, $bindPatchpanelPortId]
            );

            if ($existingPatchpanelUsage) {
                $sameOutletConnection = (
                    (
                        (($existingPatchpanelUsage['port_a_type'] ?? '') === 'outlet' || ($existingPatchpanelUsage['port_a_type'] ?? '') === 'network_outlet_ports')
                        && (int)($existingPatchpanelUsage['port_a_id'] ?? 0) === $outletPortId
                    )
                    ||
                    (
                        (($existingPatchpanelUsage['port_b_type'] ?? '') === 'outlet' || ($existingPatchpanelUsage['port_b_type'] ?? '') === 'network_outlet_ports')
                        && (int)($existingPatchpanelUsage['port_b_id'] ?? 0) === $outletPortId
                    )
                );

                if (!$sameOutletConnection) {
                    $_SESSION['error'] = 'Gewaehlter Patchpanel-Port ist bereits verbunden';
                    $_SESSION['validation_errors'] = ['Gewaehlter Patchpanel-Port ist bereits verbunden'];
                    header('Location: ?module=floor_infrastructure&action=edit&type=outlet&id=' . $outletId);
                    exit;
                }
            }

            $sql->set(
                "DELETE FROM connections
                 WHERE
                    ((port_a_type = 'outlet' OR port_a_type = 'network_outlet_ports') AND port_a_id = ? AND (port_b_type = 'patchpanel' OR port_b_type = 'floor_patchpanel_ports'))
                    OR
                    ((port_b_type = 'outlet' OR port_b_type = 'network_outlet_ports') AND port_b_id = ? AND (port_a_type = 'patchpanel' OR port_a_type = 'floor_patchpanel_ports'))",
                "ii",
                [$outletPortId, $outletPortId]
            );

            $connectionTypeId = (int)($sql->single(
                "SELECT id FROM connection_types ORDER BY id LIMIT 1",
                "",
                []
            )['id'] ?? 0);
            if ($connectionTypeId <= 0) {
                $connectionTypeId = (int)$sql->set(
                    "INSERT INTO connection_types (name, medium, duplex, line_style, comment) VALUES (?, ?, ?, ?, ?)",
                    "sssss",
                    ['Default', 'copper', 'custom', 'solid', 'Auto-created by floor_infrastructure/save'],
                    true
                );
            }

            if ($connectionTypeId <= 0) {
                $_SESSION['error'] = 'Kein Verbindungstyp fuer automatische Bindung verfuegbar';
                $_SESSION['validation_errors'] = ['Kein Verbindungstyp fuer automatische Bindung verfuegbar'];
                header('Location: ?module=floor_infrastructure&action=edit&type=outlet&id=' . $outletId);
                exit;
            }

            $sql->set(
                "INSERT INTO connections (connection_type_id, port_a_type, port_a_id, port_b_type, port_b_id, vlan_config, comment)
                 VALUES (?, 'outlet', ?, 'patchpanel', ?, NULL, ?)",
                "iiis",
                [$connectionTypeId, $outletPortId, $bindPatchpanelPortId, 'Auto-Link bei Wandbuchsen-Erstellung']
            );
        }
    }
    $_SESSION['success'] = $id > 0 ? 'Wandbuchse gespeichert' : 'Wandbuchse erstellt';
} else {
    $_SESSION['error'] = 'Ungueltiger Infrastrukturobjekt-Typ';
    $_SESSION['validation_errors'] = ['Ungueltiger Infrastrukturobjekt-Typ'];
}

header('Location: ?module=floor_infrastructure&action=list');
exit;