feat(schematic): Wire-Dragging, Farbpropagierung, Busbar-Typen

- Wire-Segment-Dragging: Shift+Klick/Mittlere Maustaste zum Verschieben
  - Horizontale Segmente nur vertikal, vertikale nur horizontal
  - Grid-Snapping, Live-Vorschau, Start/End-Segmente fixiert
- PWA: Automatische Farbpropagierung bei Einspeisung (L1/L2/L3/N/PE)
  - N-Phase als Input hinzugefuegt
  - propagateInputColor() aktualisiert Abgaenge
- Busbar-Typen aus Datenbank statt hardcodiert
- ChangeLog aktualisiert

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ChangeLog.md

@@ -14,6 +14,30 @@
   - Leitungen "verschwinden" hinter Bloecken und kommen auf der anderen Seite wieder raus
   - Professionelleres Erscheinungsbild wie in echten Schaltplan-Editoren
 
+- **Wire-Segment-Dragging**: Leitungen koennen verschoben werden ohne Verbindungen zu verlieren
+  - Shift+Klick oder Mittlere Maustaste auf Leitungssegment zum Ziehen
+  - Horizontale Segmente nur vertikal verschiebbar, vertikale nur horizontal
+  - Start- und End-Segmente (an Terminals) bleiben fix
+  - Automatisches Grid-Snapping (25px)
+  - Live-Vorschau waehrend dem Ziehen
+  - Neue Funktionen: `parsePathToPoints()`, `pointsToPath()`, `findClickedSegment()`
+  - `startWireDrag()`, `handleWireDragMove()`, `finishWireDrag()`, `cancelWireDrag()`
+
+- **Busbar-Typen aus Datenbank**: Phasenschienen-Typen dynamisch aus DB laden
+  - Edit-Dialog nutzt jetzt `busbarTypes` Array statt hardcodierter Optionen
+  - `fk_busbar_type` wird beim Update korrekt gespeichert
+  - Admin-Seite fuer Busbar-Typen mit phases_config JSON-Feld
+
+- **PWA: Farbpropagierung bei Einspeisung**: Automatische Farbuebernahme
+  - Bei Auswahl einer Input-Phase (L1/L2/L3/N/PE) wird Farbe automatisch gesetzt
+  - Funktion `propagateInputColor()` aktualisiert Farben auf Abgaengen
+  - Phase-Matching: L1 matched L1, LN, L1N; N matched N; etc.
+  - Funktioniert online und offline (mit Queue)
+
+- **PWA: N-Phase als Einspeisung**: Neutralleiter jetzt als Input-Phase waehlbar
+  - INPUT_PHASES erweitert um 'N': ['L1', 'L2', 'L3', 'N', 'PE']
+  - 3P und 3P+N entfernt (nur Einzel-Phasen)
+
 ### Verbesserungen
 
 - **Zeichenmodus-Verhalten**: Konsistentes Verhalten im manuellen Zeichenmodus

js/kundenkarte.js

@@ -5222,6 +5222,14 @@
         wireExtendExistingPoints: [], // Existing path points of connection being extended
         WIRE_GRID_SIZE: 25,      // Snap grid size in pixels (larger = fewer points)
 
+        // Wire segment dragging
+        wireDragMode: false,          // Currently dragging a wire segment
+        wireDragConnId: null,         // Connection ID being dragged
+        wireDragSegmentIndex: null,   // Index of segment being dragged (0-based)
+        wireDragIsHorizontal: null,   // true = horizontal segment (drag Y), false = vertical (drag X)
+        wireDragStartPos: null,       // Starting mouse position
+        wireDragOriginalPoints: [],   // Original path points before drag
+
         // Display settings (persisted in localStorage)
         displaySettings: {
             phaseColors: true,       // Color wires by phase (L1=brown, L2=black, L3=gray, N=blue, PE=green)
@@ -8031,6 +8039,44 @@
                 this.addEventListener('mouseleave', function() {
                     $visiblePath.attr('stroke-width', wireWidth);
                 });
+
+                // Wire segment dragging - mousedown to start drag
+                this.addEventListener('mousedown', function(e) {
+                    // Only with middle mouse button or Shift+left click
+                    if (e.button === 1 || (e.button === 0 && e.shiftKey)) {
+                        e.preventDefault();
+                        e.stopPropagation();
+
+                        // Don't start drag if in wire draw mode
+                        if (self.wireDrawMode) return;
+
+                        var $svg = $(e.target).closest('svg');
+                        var svgRect = $svg[0].getBoundingClientRect();
+                        var clickX = e.clientX - svgRect.left;
+                        var clickY = e.clientY - svgRect.top;
+
+                        if (self.startWireDrag(connId, clickX, clickY)) {
+                            // Successfully started drag - bind move/up handlers
+                            var moveHandler = function(moveE) {
+                                var mx = moveE.clientX - svgRect.left;
+                                var my = moveE.clientY - svgRect.top;
+                                self.handleWireDragMove(mx, my);
+                            };
+
+                            var upHandler = function(upE) {
+                                var ux = upE.clientX - svgRect.left;
+                                var uy = upE.clientY - svgRect.top;
+                                self.finishWireDrag(ux, uy);
+                                document.removeEventListener('mousemove', moveHandler);
+                                document.removeEventListener('mouseup', upHandler);
+                            };
+
+                            document.addEventListener('mousemove', moveHandler);
+                            document.addEventListener('mouseup', upHandler);
+                        }
+                    }
+                });
+
                 this.style.cursor = 'pointer';
             });
 
@@ -8193,6 +8239,37 @@
                 this.addEventListener('mouseleave', function() {
                     $visiblePath.attr('stroke-width', wireWidth);
                 });
+
+                // Wire segment dragging
+                this.addEventListener('mousedown', function(e) {
+                    if (e.button === 1 || (e.button === 0 && e.shiftKey)) {
+                        e.preventDefault();
+                        e.stopPropagation();
+                        if (self.wireDrawMode) return;
+
+                        var $svg = $(e.target).closest('svg');
+                        var svgRect = $svg[0].getBoundingClientRect();
+                        var clickX = e.clientX - svgRect.left;
+                        var clickY = e.clientY - svgRect.top;
+
+                        if (self.startWireDrag(connId, clickX, clickY)) {
+                            var moveHandler = function(moveE) {
+                                var mx = moveE.clientX - svgRect.left;
+                                var my = moveE.clientY - svgRect.top;
+                                self.handleWireDragMove(mx, my);
+                            };
+                            var upHandler = function(upE) {
+                                var ux = upE.clientX - svgRect.left;
+                                var uy = upE.clientY - svgRect.top;
+                                self.finishWireDrag(ux, uy);
+                                document.removeEventListener('mousemove', moveHandler);
+                                document.removeEventListener('mouseup', upHandler);
+                            };
+                            document.addEventListener('mousemove', moveHandler);
+                            document.addEventListener('mouseup', upHandler);
+                        }
+                    }
+                });
                 this.style.cursor = 'pointer';
             });
         },
@@ -10802,6 +10879,226 @@
             }
         },
 
+        // ========================================
+        // Wire Segment Dragging
+        // ========================================
+
+        /**
+         * Parse SVG path data to array of points
+         */
+        parsePathToPoints: function(pathData) {
+            if (!pathData) return [];
+            var points = [];
+            var regex = /([ML])\s*([\d.]+)\s+([\d.]+)/g;
+            var match;
+            while ((match = regex.exec(pathData)) !== null) {
+                points.push({
+                    x: parseFloat(match[2]),
+                    y: parseFloat(match[3])
+                });
+            }
+            return points;
+        },
+
+        /**
+         * Convert points array back to SVG path string
+         */
+        pointsToPath: function(points) {
+            if (!points || points.length === 0) return '';
+            var path = '';
+            for (var i = 0; i < points.length; i++) {
+                path += (i === 0 ? 'M ' : 'L ') + Math.round(points[i].x) + ' ' + Math.round(points[i].y) + ' ';
+            }
+            return path.trim();
+        },
+
+        /**
+         * Find which segment of a path was clicked
+         * Returns: { index: segmentIndex, isHorizontal: bool } or null
+         */
+        findClickedSegment: function(points, clickX, clickY, threshold) {
+            threshold = threshold || 15;
+
+            for (var i = 0; i < points.length - 1; i++) {
+                var p1 = points[i];
+                var p2 = points[i + 1];
+
+                // Check if click is near this segment
+                var isHorizontal = Math.abs(p1.y - p2.y) < 2; // Horizontal if Y values are same
+                var isVertical = Math.abs(p1.x - p2.x) < 2;   // Vertical if X values are same
+
+                if (isHorizontal) {
+                    // Horizontal segment - check if click is within X range and near Y
+                    var minX = Math.min(p1.x, p2.x);
+                    var maxX = Math.max(p1.x, p2.x);
+                    if (clickX >= minX - threshold && clickX <= maxX + threshold &&
+                        Math.abs(clickY - p1.y) <= threshold) {
+                        return { index: i, isHorizontal: true };
+                    }
+                } else if (isVertical) {
+                    // Vertical segment - check if click is within Y range and near X
+                    var minY = Math.min(p1.y, p2.y);
+                    var maxY = Math.max(p1.y, p2.y);
+                    if (clickY >= minY - threshold && clickY <= maxY + threshold &&
+                        Math.abs(clickX - p1.x) <= threshold) {
+                        return { index: i, isHorizontal: false };
+                    }
+                }
+            }
+            return null;
+        },
+
+        /**
+         * Start dragging a wire segment
+         */
+        startWireDrag: function(connId, clickX, clickY) {
+            var conn = this.connections.find(function(c) { return c.id == connId; });
+            if (!conn || !conn.path_data) return false;
+
+            var points = this.parsePathToPoints(conn.path_data);
+            if (points.length < 3) return false; // Need at least 3 points to have a draggable segment
+
+            var segment = this.findClickedSegment(points, clickX, clickY);
+            if (!segment) return false;
+
+            // Don't allow dragging the first or last segment (connected to terminals)
+            if (segment.index === 0 || segment.index === points.length - 2) {
+                this.showMessage('Start- und End-Segmente können nicht verschoben werden', 'warning');
+                return false;
+            }
+
+            this.wireDragMode = true;
+            this.wireDragConnId = connId;
+            this.wireDragSegmentIndex = segment.index;
+            this.wireDragIsHorizontal = segment.isHorizontal;
+            this.wireDragStartPos = { x: clickX, y: clickY };
+            this.wireDragOriginalPoints = JSON.parse(JSON.stringify(points));
+
+            // Visual feedback
+            $(this.svgElement).css('cursor', segment.isHorizontal ? 'ns-resize' : 'ew-resize');
+            this.log('Wire drag started - segment:', segment.index, 'horizontal:', segment.isHorizontal);
+
+            return true;
+        },
+
+        /**
+         * Handle mouse move during wire drag
+         */
+        handleWireDragMove: function(mouseX, mouseY) {
+            if (!this.wireDragMode) return;
+
+            var points = JSON.parse(JSON.stringify(this.wireDragOriginalPoints));
+            var segIdx = this.wireDragSegmentIndex;
+
+            if (this.wireDragIsHorizontal) {
+                // Horizontal segment - move Y (vertical drag)
+                var deltaY = mouseY - this.wireDragStartPos.y;
+                var newY = points[segIdx].y + deltaY;
+
+                // Snap to grid
+                newY = Math.round(newY / this.WIRE_GRID_SIZE) * this.WIRE_GRID_SIZE;
+
+                // Update both points of this segment
+                points[segIdx].y = newY;
+                points[segIdx + 1].y = newY;
+            } else {
+                // Vertical segment - move X (horizontal drag)
+                var deltaX = mouseX - this.wireDragStartPos.x;
+                var newX = points[segIdx].x + deltaX;
+
+                // Snap to grid
+                newX = Math.round(newX / this.WIRE_GRID_SIZE) * this.WIRE_GRID_SIZE;
+
+                // Update both points of this segment
+                points[segIdx].x = newX;
+                points[segIdx + 1].x = newX;
+            }
+
+            // Update the visual path in SVG
+            var newPath = this.pointsToPath(points);
+            var $conn = $(this.svgElement).find('.schematic-connection[data-connection-id="' + this.wireDragConnId + '"]');
+            var $hitarea = $(this.svgElement).find('.schematic-connection-hitarea[data-connection-id="' + this.wireDragConnId + '"]');
+            var $shadow = $conn.closest('.schematic-connection-group').find('.schematic-connection-shadow');
+
+            $conn.attr('d', newPath);
+            $hitarea.attr('d', newPath);
+            $shadow.attr('d', newPath);
+        },
+
+        /**
+         * Finish wire drag and save
+         */
+        finishWireDrag: function(mouseX, mouseY) {
+            if (!this.wireDragMode) return;
+
+            var points = JSON.parse(JSON.stringify(this.wireDragOriginalPoints));
+            var segIdx = this.wireDragSegmentIndex;
+
+            if (this.wireDragIsHorizontal) {
+                var deltaY = mouseY - this.wireDragStartPos.y;
+                var newY = points[segIdx].y + deltaY;
+                newY = Math.round(newY / this.WIRE_GRID_SIZE) * this.WIRE_GRID_SIZE;
+                points[segIdx].y = newY;
+                points[segIdx + 1].y = newY;
+            } else {
+                var deltaX = mouseX - this.wireDragStartPos.x;
+                var newX = points[segIdx].x + deltaX;
+                newX = Math.round(newX / this.WIRE_GRID_SIZE) * this.WIRE_GRID_SIZE;
+                points[segIdx].x = newX;
+                points[segIdx + 1].x = newX;
+            }
+
+            // Clean up collinear points
+            points = this.cleanupPathPoints(points);
+
+            var newPath = this.pointsToPath(points);
+            var self = this;
+
+            // Save to server
+            $.ajax({
+                url: baseUrl + '/custom/kundenkarte/ajax/equipment_connection.php',
+                method: 'POST',
+                data: {
+                    action: 'update',
+                    connection_id: this.wireDragConnId,
+                    path_data: newPath,
+                    token: $('input[name="token"]').val()
+                },
+                success: function(response) {
+                    if (response.success) {
+                        // Update local data
+                        var conn = self.connections.find(function(c) { return c.id == self.wireDragConnId; });
+                        if (conn) {
+                            conn.path_data = newPath;
+                        }
+                        self.showMessage('Leitung verschoben', 'success');
+                    } else {
+                        self.showMessage('Fehler: ' + (response.error || 'Unbekannt'), 'error');
+                        self.renderConnections(); // Revert visual
+                    }
+                    self.cancelWireDrag();
+                },
+                error: function() {
+                    self.showMessage('Netzwerkfehler', 'error');
+                    self.renderConnections(); // Revert visual
+                    self.cancelWireDrag();
+                }
+            });
+        },
+
+        /**
+         * Cancel wire drag
+         */
+        cancelWireDrag: function() {
+            this.wireDragMode = false;
+            this.wireDragConnId = null;
+            this.wireDragSegmentIndex = null;
+            this.wireDragIsHorizontal = null;
+            this.wireDragStartPos = null;
+            this.wireDragOriginalPoints = [];
+            $(this.svgElement).css('cursor', '');
+        },
+
         // Update an existing connection with extended path
         updateExtendedConnection: function(connId, newTargetEqId, newTargetTermId, newPathData) {
             var self = this;

js/pwa.js

@@ -226,6 +226,17 @@
 		// Medium-Type Change -> Spezifikationen laden
 		$('#conn-medium-type').on('change', handleMediumTypeChange);
 
+		// Connection-Type Change -> Auto-Farbe bei Input-Phasen
+		$('#conn-type').on('change', function() {
+			if (App.connectionDirection === 'input') {
+				const phase = $(this).val();
+				if (phase) {
+					const color = getPhaseColor(phase);
+					$('#conn-color').val(color);
+				}
+			}
+		});
+
 		// Bestätigungsdialog
 		$('#btn-confirm-ok').on('click', function() {
 			closeModal('confirm');
@@ -2790,7 +2801,13 @@
 					const response = await apiCall('ajax/pwa_api.php', data);
 					if (response.success) {
 						const list = App.connectionDirection === 'input' ? App.inputs : App.outputs;
-						updateLocal(list.find(c => c.id == App.editConnectionId));
+						const conn = list.find(c => c.id == App.editConnectionId);
+						updateLocal(conn);
+						// Farbpropagierung bei Input
+						if (App.connectionDirection === 'input' && connectionType) {
+							const eqId = conn ? conn.fk_target : null;
+							await propagateInputColor(eqId, connectionType, color);
+						}
 						renderEditor();
 						showToast('Verbindung aktualisiert', 'success');
 					} else {
@@ -2803,7 +2820,13 @@
 			} else {
 				queueOfflineAction(data);
 				const list = App.connectionDirection === 'input' ? App.inputs : App.outputs;
-				updateLocal(list.find(c => c.id == App.editConnectionId));
+				const conn = list.find(c => c.id == App.editConnectionId);
+				updateLocal(conn);
+				// Farbpropagierung bei Input (offline)
+				if (App.connectionDirection === 'input' && connectionType) {
+					const eqId = conn ? conn.fk_target : null;
+					propagateInputColor(eqId, connectionType, color);
+				}
 				renderEditor();
 				showToast('Wird synchronisiert...', 'warning');
 			}
@@ -2846,6 +2869,10 @@
 						if (App.connectionDirection === 'input') {
 							newConn.fk_target = App.connectionEquipmentId;
 							App.inputs.push(newConn);
+							// Farbpropagierung bei neuem Input
+							if (connectionType) {
+								await propagateInputColor(App.connectionEquipmentId, connectionType, color);
+							}
 						} else {
 							newConn.fk_source = App.connectionEquipmentId;
 							App.outputs.push(newConn);
@@ -2865,6 +2892,10 @@
 				if (App.connectionDirection === 'input') {
 					newConn.fk_target = App.connectionEquipmentId;
 					App.inputs.push(newConn);
+					// Farbpropagierung bei neuem Input (offline)
+					if (connectionType) {
+						propagateInputColor(App.connectionEquipmentId, connectionType, color);
+					}
 				} else {
 					newConn.fk_source = App.connectionEquipmentId;
 					App.outputs.push(newConn);
@@ -2877,6 +2908,60 @@
 		App.editConnectionId = null;
 	}
 
+	/**
+	 * Farbpropagierung: Wenn Input-Phase gesetzt, Farbe auf Outputs übertragen
+	 * @param {number} equipmentId - Equipment-ID
+	 * @param {string} phase - Phase (L1, L2, L3, N, PE)
+	 * @param {string} color - Farbe der Einspeisung
+	 */
+	async function propagateInputColor(equipmentId, phase, color) {
+		if (!equipmentId || !phase || !color) return;
+
+		// Finde alle Outputs dieses Equipment
+		const outputs = App.outputs.filter(o => o.fk_source == equipmentId);
+		if (outputs.length === 0) return;
+
+		// Update Outputs mit passender Phase
+		for (const output of outputs) {
+			// Phase-Matching: L1 -> L1, LN, L1N; L2 -> L2; etc.
+			const outputType = output.connection_type || '';
+			let matches = false;
+
+			if (phase === 'L1' && (outputType.includes('L1') || outputType === 'LN')) matches = true;
+			else if (phase === 'L2' && outputType.includes('L2')) matches = true;
+			else if (phase === 'L3' && outputType.includes('L3')) matches = true;
+			else if (phase === 'N' && outputType.includes('N')) matches = true;
+			else if (phase === 'PE' && outputType.includes('PE')) matches = true;
+
+			if (matches && output.color !== color) {
+				output.color = color;
+
+				// Backend aktualisieren
+				if (App.isOnline) {
+					try {
+						await apiCall('ajax/pwa_api.php', {
+							action: 'update_connection',
+							connection_id: output.id,
+							color: color
+						});
+					} catch (err) {
+						queueOfflineAction({
+							action: 'update_connection',
+							connection_id: output.id,
+							color: color
+						});
+					}
+				} else {
+					queueOfflineAction({
+						action: 'update_connection',
+						connection_id: output.id,
+						color: color
+					});
+				}
+			}
+		}
+	}
+
 	/**
 	 * Connection löschen (mit Bestätigung)
 	 */

sw.js

@@ -3,8 +3,8 @@
  * Offline-First für Schaltschrank-Dokumentation
  */
 
-const CACHE_NAME = 'kundenkarte-pwa-v11.6';
+const CACHE_NAME = 'kundenkarte-pwa-v11.7';
-const OFFLINE_CACHE = 'kundenkarte-offline-v11.6';
+const OFFLINE_CACHE = 'kundenkarte-offline-v11.7';
 
 // Statische Assets die immer gecached werden (ohne Query-String)
 const STATIC_ASSETS = [