import streamlit as st # Wir nutzen das mächtigere 'st-cytoscape' (pip install st-cytoscape) from st_cytoscape import cytoscape from qdrant_client import models from ui_config import COLLECTION_PREFIX, GRAPH_COLORS from ui_callbacks import switch_to_editor_callback def render_graph_explorer_cytoscape(graph_service): st.header("🕸️ Graph Explorer (Cytoscape)") # State Init if "graph_center_id" not in st.session_state: st.session_state.graph_center_id = None # Defaults für Cytoscape Session State st.session_state.setdefault("cy_node_repulsion", 1000000) st.session_state.setdefault("cy_ideal_edge_len", 150) st.session_state.setdefault("cy_depth", 2) # Eigene Tiefe für diesen Tab col_ctrl, col_graph = st.columns([1, 4]) # --- CONTROLS (Linke Spalte) --- with col_ctrl: st.subheader("Fokus") search_term = st.text_input("Suche Notiz", placeholder="Titel eingeben...", key="cy_search") if search_term: hits, _ = graph_service.client.scroll( collection_name=f"{COLLECTION_PREFIX}_notes", limit=10, scroll_filter=models.Filter(must=[models.FieldCondition(key="title", match=models.MatchText(text=search_term))]) ) options = {h.payload['title']: h.payload['note_id'] for h in hits} if options: selected_title = st.selectbox("Ergebnisse:", list(options.keys()), key="cy_select") if st.button("Laden", use_container_width=True, key="cy_load"): st.session_state.graph_center_id = options[selected_title] st.rerun() st.divider() # EINSTELLUNGEN with st.expander("👁️ Ansicht & Layout", expanded=True): # 1. Tiefe (Tier) st.session_state.cy_depth = st.slider("Tiefe (Tier)", 1, 3, st.session_state.cy_depth, key="cy_depth_slider") st.markdown("**COSE Layout**") # 2. Layout Parameter st.session_state.cy_ideal_edge_len = st.slider("Kantenlänge", 50, 600, st.session_state.cy_ideal_edge_len, key="cy_len_slider") st.session_state.cy_node_repulsion = st.slider("Knoten-Abstoßung", 100000, 5000000, st.session_state.cy_node_repulsion, step=100000, key="cy_rep_slider") if st.button("Neu berechnen / Reset", key="cy_rerun"): st.rerun() st.divider() st.caption("Legende") for k, v in list(GRAPH_COLORS.items())[:8]: st.markdown(f"● {k}", unsafe_allow_html=True) # --- GRAPH AREA (Rechte Spalte) --- with col_graph: center_id = st.session_state.graph_center_id if center_id: action_container = st.container() # 1. Daten laden (Mit Tiefe!) with st.spinner(f"Lade Graph (Tiefe {st.session_state.cy_depth})..."): # Hier nutzen wir die dynamische Tiefe aus dem Slider # Wir holen die Agraph-Objekte vom Service, da die Logik dort zentralisiert ist nodes_data, edges_data = graph_service.get_ego_graph( center_id, depth=st.session_state.cy_depth ) # Note Data für Editor Button (Volltext/Pfad via Service) note_data = graph_service.get_note_with_full_content(center_id) # 2. Action Bar with action_container: c1, c2 = st.columns([3, 1]) with c1: st.caption(f"Zentrum: **{center_id}**") with c2: if note_data: st.button("📝 Bearbeiten", use_container_width=True, on_click=switch_to_editor_callback, args=(note_data,), key="cy_edit_btn") # 3. Daten Konvertierung (Agraph -> Cytoscape JSON) cy_elements = [] # Nodes for n in nodes_data: # Wir holen den Hover-Text aus 'n.title', den der Service vorbereitet hat (Fulltext/Snippet) tooltip_text = n.title if n.title else n.label # Label kürzen für Anzeige im Kreis, aber voll im Tooltip display_label = n.label if len(display_label) > 15 and " " in display_label: display_label = display_label.replace(" ", "\n", 1) # Zeilenumbruch cy_node = { "data": { "id": n.id, "label": display_label, "full_label": n.label, "bg_color": n.color, "size": 50 if n.id == center_id else 30, # Dieses Feld wird oft automatisch als natives 'title' Attribut gerendert (Browser Tooltip) "title": tooltip_text }, "selected": (n.id == center_id) } cy_elements.append(cy_node) # Edges for e in edges_data: # Kompatibilität: Agraph nutzt 'to', Cytoscape braucht 'target' # Wir prüfen sicherheitshalber beide Attribute target_id = getattr(e, "to", getattr(e, "target", None)) if target_id: cy_edge = { "data": { "source": e.source, "target": target_id, "label": e.label, "line_color": e.color } } cy_elements.append(cy_edge) # 4. Styling (CSS-like) stylesheet = [ { "selector": "node", "style": { "label": "data(label)", "width": "data(size)", "height": "data(size)", "background-color": "data(bg_color)", "color": "#333", "font-size": "12px", "text-valign": "center", "text-halign": "center", "text-wrap": "wrap", "text-max-width": "80px", "border-width": 2, "border-color": "#fff", # Tooltip Mapping (funktioniert je nach Browser/Wrapper) "content": "data(label)" } }, { "selector": "node:selected", "style": { "border-width": 4, "border-color": "#FF5733", "background-color": "#FF5733", "color": "#fff" } }, { "selector": "edge", "style": { "width": 2, "line-color": "data(line_color)", "target-arrow-color": "data(line_color)", "target-arrow-shape": "triangle", "curve-style": "bezier", "label": "data(label)", "font-size": "10px", "color": "#666", "text-background-opacity": 0.7, "text-background-color": "#fff", "text-rotation": "autorotate" } } ] # 5. Rendering & Layout # COSE Layout für optimale Abstände selected_element = cytoscape( elements=cy_elements, stylesheet=stylesheet, layout={ "name": "cose", "idealEdgeLength": st.session_state.cy_ideal_edge_len, "nodeOverlap": 20, "refresh": 20, "fit": True, "padding": 50, "randomize": False, "componentSpacing": 100, "nodeRepulsion": st.session_state.cy_node_repulsion, "edgeElasticity": 100, "nestingFactor": 5, "gravity": 80, "numIter": 1000, "initialTemp": 200, "coolingFactor": 0.95, "minTemp": 1.0 }, # Dynamischer Key für Re-Render bei Einstellungsänderung key=f"cy_{center_id}_{st.session_state.cy_depth}_{st.session_state.cy_ideal_edge_len}", height="800px" ) # 6. Interaktions-Logik (Navigation) if selected_element: # st-cytoscape gibt ein Dictionary der selektierten Elemente zurück # Struktur: {'nodes': ['id1'], 'edges': []} clicked_nodes = selected_element.get("nodes", []) if clicked_nodes: clicked_id = clicked_nodes[0] # Wenn auf einen anderen Knoten geklickt wurde -> Navigieren if clicked_id and clicked_id != center_id: st.session_state.graph_center_id = clicked_id st.rerun() else: st.info("👈 Bitte wähle links eine Notiz aus.")