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1832 lines (1663 loc) · 70.2 KB
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import React, { useState, useCallback, useMemo, useRef, useEffect } from 'react';
import ReactFlow, {
addEdge,
Background,
Controls,
MiniMap,
Connection,
Node,
Edge,
useNodesState,
useEdgesState,
ReactFlowProvider,
MarkerType,
updateEdge,
OnNodesChange,
} from 'reactflow';
import { RotateCcw, Settings2, Trash2, Search, FolderOpen, ChevronUp, ChevronDown, Pen, Plus, X } from 'lucide-react';
import { DEFAULT_FLOW_TEMPLATE } from './constants';
import { AppMode, CustomNodeData, WorkflowData } from './types';
import CustomNode, { LOG_HIGHLIGHT_THEME } from './components/CustomNode';
import ControlPanel from './components/ControlPanel';
const nodeTypes = {
custom: CustomNode,
};
const GRID_STEP = 15;
const NODE_WIDTH = 256;
const IGNORED_FLOW_FILES = new Set(['default.json']);
const FLOW_SIDEBAR_WIDTH = 280;
const snap = (v: number) => Math.round(v / GRID_STEP) * GRID_STEP;
const getNodeSize = (n: any) => {
const w = n?.measured?.width ?? n?.width ?? NODE_WIDTH;
const h = n?.measured?.height ?? n?.height ?? 60;
return { w, h };
};
const buildExportHtml = (data: any, themeColor: string) => {
const safeData = JSON.stringify(data).replace(/</g, '\\u003c');
const safeThemeColor = JSON.stringify(themeColor).replace(/</g, '\\u003c');
return `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>FlowStep Viewer</title>
<script src="https://cdn.tailwindcss.com"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/style.css" />
<style>
html, body, #root {
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
.react-flow__node {
cursor: pointer;
}
.react-flow__edge-path {
stroke-width: 3;
}
.react-flow__edge.selected .react-flow__edge-path {
stroke: #6366f1;
stroke-width: 4;
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: #cbd5e1;
border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
background: #94a3b8;
}
@keyframes fade-in-up {
from { opacity: 0; transform: translate(-50%, 10px); }
to { opacity: 1; transform: translate(-50%, 0); }
}
.animate-toast {
animation: fade-in-up 0.3s ease-out forwards;
}
</style>
<script type="importmap">
{
"imports": {
"react": "https://esm.sh/[email protected]",
"react-dom": "https://esm.sh/[email protected]",
"react-dom/client": "https://esm.sh/[email protected]/client",
"react/jsx-runtime": "https://esm.sh/[email protected]/jsx-runtime",
"reactflow": "https://esm.sh/[email protected]?external=react,react-dom"
}
}
</script>
</head>
<body>
<div id="root"></div>
<script type="module">
import React, { useCallback, useEffect, useMemo, useState } from 'react';
import ReactDOM from 'react-dom/client';
import ReactFlow, {
Background,
Controls,
MiniMap,
MarkerType,
Handle,
Position,
ReactFlowProvider,
useNodesState,
useEdgesState
} from 'reactflow';
const FLOWSTEP_DATA = ${safeData};
const THEME_COLOR = ${safeThemeColor};
const GRID_STEP = 15;
const LOG_THEME = {
nodeBorder: '#EDA35A',
handleDot: '#EDA35A',
glowRing: '0 0 0 4px rgba(237, 163, 90, 0.35), 0 0 16px rgba(237, 163, 90, 0.2)',
borderWidth: '2px',
textMatchBg: '#fef08a',
textMatchColor: '#334155',
edgeStroke: '#EDA35A',
edgeWidth: 2,
};
const CATEGORY_CONFIG = {
start: {
color: '#047857',
backgroundColor: '#ffffff',
borderColor: '#b91c1c00',
borderRadius: '9999px',
boxShadow: '0 2px 4px -1px rgba(16, 185, 129, 0.2)',
textTransform: 'uppercase',
letterSpacing: '0.05em',
},
end: {
color: '#334155',
backgroundColor: '#f8fafc',
borderColor: '#e2e8f0',
borderRadius: '9999px',
boxShadow: '0 2px 4px -1px rgba(0, 0, 0, 0.05)',
textTransform: 'uppercase',
letterSpacing: '0.05em',
},
decision: {
color: '#0369a1',
backgroundColor: '#ffffff',
borderColor: '#bae6fd',
borderStyle: 'dashed',
},
error: {
color: '#b91c1c',
backgroundColor: '#ffffff',
borderColor: '#fecaca',
},
process: {
color: '#475569',
backgroundColor: '#ffffff',
borderColor: '#f1f5f9',
},
};
const HighlightedDetail = ({ text, searchText }) => {
if (!searchText || searchText.trim().length === 0) return text;
const lower = text.toLowerCase();
const idx = lower.indexOf(searchText.toLowerCase().trim());
if (idx === -1) return text;
const before = text.slice(0, idx);
const match = text.slice(idx, idx + searchText.trim().length);
const after = text.slice(idx + searchText.trim().length);
return React.createElement(React.Fragment, null,
before,
React.createElement('span', { style: { backgroundColor: LOG_THEME.textMatchBg, borderRadius: '2px', padding: '0 2px', fontWeight: 700, color: LOG_THEME.textMatchColor } }, match),
after
);
};
const CustomNode = ({ data, selected }) => {
const isHighlighted = data.isHighlighted;
const isLogHighlighted = data.isLogHighlighted;
const isVisible = data.isVisible !== false;
if (!isVisible) return React.createElement('div', { className: 'opacity-0 pointer-events-none' });
const category = data.category || 'process';
const config = CATEGORY_CONFIG[category] || CATEGORY_CONFIG.process;
const activeColor = config.color;
const handleClass = 'w-2.5 h-2.5 border-2 transition-colors duration-200';
const HANDLE_POSITIONS = ['25%', '50%', '75%'];
const TripleHandle = ({ pos, idPrefix }) => {
const isVertical = pos === Position.Top || pos === Position.Bottom;
return React.createElement(React.Fragment, null,
HANDLE_POSITIONS.map((offset, idx) => {
const positionStyle = isVertical
? { left: offset, transform: 'translateX(-50%)' }
: { top: offset, transform: 'translateY(-50%)' };
const edgeStyle = {
...(pos === Position.Top ? { top: '-6px' } : {}),
...(pos === Position.Bottom ? { bottom: '-6px' } : {}),
...(pos === Position.Left ? { left: '-6px' } : {}),
...(pos === Position.Right ? { right: '-6px' } : {})
};
return React.createElement(React.Fragment, { key: idPrefix + '-' + idx },
React.createElement(Handle, {
id: idPrefix + '-' + (idx + 1) + '-target',
type: 'target',
position: pos,
className: handleClass + ' z-10',
style: {
visibility: 'visible',
backgroundColor: isLogHighlighted ? LOG_THEME.handleDot : (isHighlighted ? activeColor : '#cbd5e1'),
borderColor: '#fff',
...positionStyle,
...edgeStyle
}
}),
React.createElement(Handle, {
id: idPrefix + '-' + (idx + 1) + '-source',
type: 'source',
position: pos,
className: handleClass + ' opacity-0 hover:opacity-100 z-20',
style: {
backgroundColor: isLogHighlighted ? LOG_THEME.handleDot : (isHighlighted ? activeColor : '#cbd5e1'),
borderColor: '#fff',
...positionStyle,
...edgeStyle
}
})
);
})
);
};
const logGlow = isLogHighlighted ? LOG_THEME.glowRing : undefined;
return (
React.createElement('div', {
className: 'group relative px-4 py-3 transition-all duration-300 w-64' +
(isHighlighted ? ' ring-4' : '') +
(selected ? ' ring-2' : ''),
style: {
backgroundColor: config.backgroundColor,
borderColor: isLogHighlighted ? LOG_THEME.nodeBorder : (isHighlighted ? activeColor : (selected ? activeColor : config.borderColor)),
borderRadius: config.borderRadius || '0.75rem',
borderStyle: config.borderStyle || 'solid',
borderWidth: isLogHighlighted ? LOG_THEME.borderWidth : (config.borderWidth || '2px'),
boxShadow: isLogHighlighted ? logGlow : config.boxShadow,
'--tw-ring-color': isHighlighted ? activeColor + '33' : activeColor + '1a'
}
},
React.createElement(TripleHandle, { pos: Position.Top, idPrefix: 'top' }),
React.createElement(TripleHandle, { pos: Position.Left, idPrefix: 'left' }),
React.createElement(TripleHandle, { pos: Position.Right, idPrefix: 'right' }),
React.createElement(TripleHandle, { pos: Position.Bottom, idPrefix: 'bottom' }),
React.createElement('div', { className: 'flex flex-col relative text-center' },
React.createElement('span', {
className: 'text-sm font-bold mb-1 break-words flex-grow',
style: {
color: isHighlighted ? activeColor : (category === 'process' ? '#1e293b' : activeColor),
textTransform: config.textTransform || 'none',
letterSpacing: config.letterSpacing || 'normal'
}
}, data.label),
data.details && data.details.length > 0 && (
React.createElement('div', { className: 'mt-2 pt-2 border-t border-slate-100 min-h-[10px]' },
React.createElement('ul', { className: 'list-disc pl-4 space-y-1 text-left' },
data.details.map((detail, idx) => (
React.createElement('li', {
key: idx,
className: 'text-[10px] leading-tight text-slate-500 font-medium'
}, React.createElement(HighlightedDetail, { text: detail, searchText: isLogHighlighted ? data.logSearchText : null }))
))
)
)
)
)
)
);
};
const nodeTypes = { custom: CustomNode };
const AppContent = () => {
const [nodes, setNodes, onNodesChange] = useNodesState(FLOWSTEP_DATA.nodes);
const [edges, setEdges, onEdgesChange] = useEdgesState(FLOWSTEP_DATA.edges);
const [mode, setMode] = useState('READER');
const [visibleNodeIds, setVisibleNodeIds] = useState(new Set());
const [activeNodeId, setActiveNodeId] = useState(null);
// Log Lookup State
const [logSearchText, setLogSearchText] = useState('');
const [logHighlightedNodeIds, setLogHighlightedNodeIds] = useState(new Set());
const [logHighlightedEdgeIds, setLogHighlightedEdgeIds] = useState(new Set());
const [logMatchedNodeLabel, setLogMatchedNodeLabel] = useState(null);
const selectedNode = useMemo(() => nodes.find(n => n.selected), [nodes]);
const initializeSequence = useCallback(() => {
const firstNode = nodes.find(n => !edges.some(e => e.target === n.id)) || nodes[0];
if (firstNode) {
setVisibleNodeIds(new Set([firstNode.id]));
setActiveNodeId(firstNode.id);
}
}, [nodes, edges]);
const handleModeChange = useCallback((nextMode) => {
setMode(nextMode);
if (nextMode === 'SEQUENCE') {
initializeSequence();
} else {
setVisibleNodeIds(new Set());
setActiveNodeId(null);
}
}, [initializeSequence]);
// Log search: find matching node and trace path back to root
useEffect(() => {
const trimmed = logSearchText.trim();
if (trimmed.length === 0) {
setLogHighlightedNodeIds(new Set());
setLogHighlightedEdgeIds(new Set());
setLogMatchedNodeLabel(null);
return;
}
const timer = setTimeout(() => {
const lowerSearch = trimmed.toLowerCase();
const targetNode = nodes.find(n => n.data.details && n.data.details.some(d => d.toLowerCase().includes(lowerSearch)));
if (!targetNode) {
setLogHighlightedNodeIds(new Set());
setLogHighlightedEdgeIds(new Set());
setLogMatchedNodeLabel(null);
return;
}
const predecessorMap = new Map();
edges.forEach(e => {
if (!predecessorMap.has(e.target)) predecessorMap.set(e.target, []);
predecessorMap.get(e.target).push({ nodeId: e.source, edgeId: e.id });
});
const visitedNodes = new Set([targetNode.id]);
const visitedEdges = new Set();
const queue = [targetNode.id];
while (queue.length > 0) {
const current = queue.shift();
const preds = predecessorMap.get(current);
if (preds) {
for (const { nodeId, edgeId } of preds) {
visitedEdges.add(edgeId);
if (!visitedNodes.has(nodeId)) {
visitedNodes.add(nodeId);
queue.push(nodeId);
}
}
}
}
setLogHighlightedNodeIds(visitedNodes);
setLogHighlightedEdgeIds(visitedEdges);
setLogMatchedNodeLabel(targetNode.data.label);
}, 300);
return () => clearTimeout(timer);
}, [logSearchText, nodes, edges]);
const advanceSequence = useCallback(() => {
const nextNodeIds = new Set(Array.from(visibleNodeIds));
let added = false;
edges.forEach(edge => {
if (visibleNodeIds.has(edge.source) && !nextNodeIds.has(edge.target)) {
nextNodeIds.add(edge.target);
added = true;
}
});
if (added) setVisibleNodeIds(nextNodeIds);
}, [visibleNodeIds, edges]);
const onNodeClick = useCallback((_event, node) => {
if (mode === 'SEQUENCE') {
const targets = edges.filter(e => e.source === node.id).map(e => e.target);
if (targets.length > 0) {
setVisibleNodeIds(prev => {
const next = new Set(prev);
targets.forEach(t => next.add(t));
return next;
});
setActiveNodeId(node.id);
}
}
}, [mode, edges]);
const displayNodes = useMemo(() => {
return nodes.map(node => {
const isVisible = mode === 'READER' || visibleNodeIds.has(node.id);
const isHighlighted = mode === 'SEQUENCE' && activeNodeId === node.id;
const isLogHighlighted = logHighlightedNodeIds.has(node.id);
return {
...node,
draggable: false,
data: {
...node.data,
isVisible,
isHighlighted,
isLogHighlighted,
logSearchText: isLogHighlighted ? logSearchText : null,
}
};
});
}, [nodes, mode, visibleNodeIds, activeNodeId, logHighlightedNodeIds, logSearchText]);
const displayEdges = useMemo(() => {
return edges.map(edge => {
const sourceVisible = mode === 'READER' || visibleNodeIds.has(edge.source);
const targetVisible = mode === 'READER' || visibleNodeIds.has(edge.target);
const isVisible = sourceVisible && targetVisible;
const isLogHL = logHighlightedEdgeIds.has(edge.id);
return {
...edge,
hidden: !isVisible,
animated: (mode === 'SEQUENCE' && isVisible) || isLogHL,
markerEnd: { type: MarkerType.ArrowClosed, color: isLogHL ? LOG_THEME.edgeStroke : (isVisible ? '#64748b' : '#cbd5e1') },
style: { stroke: isLogHL ? LOG_THEME.edgeStroke : (isVisible ? '#64748b' : '#cbd5e1'), strokeWidth: isLogHL ? LOG_THEME.edgeWidth : 2 }
};
});
}, [edges, mode, visibleNodeIds, logHighlightedEdgeIds]);
const canGoNext = useMemo(() => {
if (mode !== 'SEQUENCE') return false;
return edges.some(e => {
const sourceVisible = visibleNodeIds.has(e.source);
const targetVisible = visibleNodeIds.has(e.target);
return sourceVisible && !targetVisible;
});
}, [mode, edges, visibleNodeIds]);
return (
React.createElement('div', {
className: 'w-full h-full bg-slate-50 relative overflow-hidden',
style: { '--accent-color': THEME_COLOR }
},
React.createElement('div', { className: 'absolute top-6 left-6 z-50 flex flex-col gap-4 pointer-events-none' },
React.createElement('div', { className: 'bg-white/90 backdrop-blur-md shadow-xl border border-slate-200 rounded-2xl p-1.5 flex gap-1 pointer-events-auto' },
React.createElement('button', {
onClick: () => handleModeChange('READER'),
className: 'flex items-center gap-2 px-4 py-2 rounded-xl transition-all duration-200 text-sm font-semibold ' +
(mode === 'READER' ? 'text-white shadow-lg' : 'text-slate-600 hover:bg-slate-100'),
style: mode === 'READER' ? { backgroundColor: THEME_COLOR } : {}
}, 'Reader'),
React.createElement('button', {
onClick: () => handleModeChange('SEQUENCE'),
className: 'flex items-center gap-2 px-4 py-2 rounded-xl transition-all duration-200 text-sm font-semibold ' +
(mode === 'SEQUENCE' ? 'text-white shadow-lg' : 'text-slate-600 hover:bg-slate-100'),
style: mode === 'SEQUENCE' ? { backgroundColor: THEME_COLOR } : {}
}, 'Sequence')
),
mode === 'SEQUENCE' && (
React.createElement('div', {
className: 'bg-white border shadow-lg rounded-2xl p-1.5 flex gap-1 pointer-events-auto items-start animate-in slide-in-from-left-4',
style: { borderColor: THEME_COLOR + '40' }
},
React.createElement('button', {
onClick: initializeSequence,
className: 'p-2.5 rounded-xl transition-all hover:bg-slate-50',
style: { color: THEME_COLOR },
title: 'Reset Flow'
}, 'Reset'),
React.createElement('button', {
onClick: advanceSequence,
disabled: !canGoNext,
className: 'flex items-center gap-2 px-5 py-2.5 rounded-xl transition-all font-bold text-sm text-white ' +
(canGoNext ? 'shadow-md active:scale-95' : 'opacity-40 cursor-not-allowed'),
style: canGoNext ? { backgroundColor: THEME_COLOR } : { backgroundColor: '#cbd5e1' }
}, 'Next')
)
)
),
React.createElement(ReactFlow, {
nodes: displayNodes,
edges: displayEdges,
onNodesChange,
onEdgesChange,
onNodeClick,
nodeTypes,
fitView: true,
snapToGrid: true,
snapGrid: [GRID_STEP, GRID_STEP],
nodesDraggable: false,
nodesConnectable: false,
elementsSelectable: true,
deleteKeyCode: null
},
React.createElement(Background, { color: '#cbd5e1', gap: 20 }),
React.createElement(Controls, null),
React.createElement(MiniMap, {
nodeColor: (n) => (n.data && n.data.isHighlighted ? THEME_COLOR : '#fff'),
maskColor: 'rgba(241, 245, 249, 0.6)'
})
),
React.createElement('div', {
className: 'absolute top-6 right-6 z-50 w-72 bg-white/80 backdrop-blur-md rounded-2xl shadow-2xl border border-slate-200 overflow-hidden flex flex-col max-h-[90vh]'
},
React.createElement('div', { className: 'p-4 border-b border-slate-100 bg-slate-50/50 flex items-center gap-2' },
React.createElement('h3', { className: 'text-slate-900 font-bold text-base' }, selectedNode ? 'Node Details' : 'Log Lookup')
),
React.createElement('div', { className: 'flex-grow overflow-y-auto p-4 space-y-4' },
selectedNode ? (
React.createElement('div', { className: 'space-y-3' },
React.createElement('div', { className: 'text-sm font-bold text-slate-900' }, selectedNode.data.label),
selectedNode.data.details && selectedNode.data.details.length > 0 ? (
React.createElement('ul', { className: 'list-disc pl-5 space-y-1 text-xs text-slate-600' },
selectedNode.data.details.map((detail, idx) => (
React.createElement('li', { key: idx }, detail)
))
)
) : (
React.createElement('p', { className: 'text-xs text-slate-400' }, 'No details for this node.')
)
)
) : (
React.createElement('div', { className: 'space-y-4' },
React.createElement('div', { className: 'space-y-2' },
React.createElement('label', { className: 'text-[11px] font-bold text-slate-500 uppercase tracking-wider' }, 'Paste Log Message'),
React.createElement('div', { className: 'relative' },
React.createElement('textarea', {
value: logSearchText,
onChange: (e) => setLogSearchText(e.target.value),
rows: 4,
className: 'w-full px-3 py-2 bg-white border border-slate-200 rounded-xl text-sm focus:outline-none focus:ring-2 transition-all resize-none pr-8',
style: { '--tw-ring-color': THEME_COLOR },
placeholder: 'Füge eine Logzeile ein, um den Pfad zu markieren…'
}),
logSearchText.length > 0 && (
React.createElement('button', {
onClick: () => setLogSearchText(''),
className: 'absolute top-2 right-2 p-1 rounded-lg text-slate-400 hover:text-slate-600 hover:bg-slate-100 transition-all',
title: 'Clear'
}, '\u2715')
)
)
),
logSearchText.trim().length > 0 && (
React.createElement('div', {
className: 'p-3 rounded-xl border text-[11px] font-medium leading-relaxed ' +
(logMatchedNodeLabel ? 'bg-amber-50 border-amber-200 text-amber-800' : 'bg-slate-50 border-slate-200 text-slate-500')
},
logMatchedNodeLabel ? (
React.createElement(React.Fragment, null,
React.createElement('span', { className: 'font-bold' }, 'Match found: '),
React.createElement('span', { className: 'italic' }, logMatchedNodeLabel),
React.createElement('p', { className: 'mt-1 text-[10px] opacity-75' },
logHighlightedNodeIds.size + ' Knoten und ' + logHighlightedEdgeIds.size + ' Kanten im Pfad hervorgehoben.'
)
)
) : 'Kein passender Knoten für diese Logzeile gefunden.'
)
),
React.createElement('div', { className: 'p-4 bg-slate-50 border border-slate-100 rounded-2xl' },
React.createElement('p', { className: 'text-[11px] text-slate-500 leading-relaxed font-medium' },
'Füge eine Logzeile aus dem Support ein — der Pfad vom Start bis zum passenden Knoten wird hervorgehoben.'
)
)
)
)
)
),
mode === 'SEQUENCE' && (
React.createElement('div', { className: 'absolute bottom-10 left-1/2 -translate-x-1/2 z-50 pointer-events-none' },
React.createElement('div', {
className: 'bg-white/90 backdrop-blur px-6 py-3 rounded-full shadow-2xl border flex items-center gap-4 animate-bounce',
style: { borderColor: THEME_COLOR + '40' }
},
React.createElement('span', { className: 'font-bold text-sm', style: { color: THEME_COLOR } },
canGoNext ? "Click a node or 'Next' to reveal" : 'Flow complete!'
)
)
)
)
)
);
};
const App = () => (
React.createElement(ReactFlowProvider, null, React.createElement(AppContent, null))
);
const rootElement = document.getElementById('root');
const root = ReactDOM.createRoot(rootElement);
root.render(React.createElement(React.StrictMode, null, React.createElement(App, null)));
</script>
</body>
</html>`;
};
type FlowFileEntry = {
name: string;
fileName: string;
handle: FileSystemFileHandle;
};
const stripJsonExtension = (name: string) => name.replace(/\.json$/i, '');
const ensureJsonFileName = (rawName: string) => {
const trimmed = rawName.trim();
if (!trimmed) return null;
const safe = trimmed.replace(/[\\\/]/g, '');
if (!safe) return null;
return safe.toLowerCase().endsWith('.json') ? safe : `${safe}.json`;
};
const buildFlowData = (nodes: Node<CustomNodeData>[], edges: Edge[], name: string, notes?: string): WorkflowData => {
return {
version: 1,
meta: {
name,
format: 'reactflow',
notes: notes || `Last updated: ${new Date().toLocaleString()}`,
},
nodes: nodes.map(({ id, type, position, data }) => ({
id,
type: type || 'custom',
position,
data: {
label: data?.label ?? '',
details: Array.isArray(data?.details) ? data.details : [],
...(data?.category ? { category: data.category } : {}),
},
})),
edges: edges.map(({ id, source, target, sourceHandle, targetHandle, type, label }) => ({
id,
source,
target,
sourceHandle,
targetHandle,
type,
label,
})),
};
};
const isValidFlowData = (data: any): data is WorkflowData => {
if (!data || !Array.isArray(data.nodes) || !Array.isArray(data.edges)) return false;
const nodesValid = data.nodes.every(
(n: any) =>
n &&
typeof n.id === 'string' &&
n.position &&
typeof n.position.x === 'number' &&
typeof n.position.y === 'number'
);
const edgesValid = data.edges.every(
(e: any) =>
e &&
typeof e.id === 'string' &&
typeof e.source === 'string' &&
typeof e.target === 'string'
);
return nodesValid && edgesValid;
};
const normalizeFlowData = (data: WorkflowData) => {
const meta = data.meta
? {
name: data.meta.name || 'Untitled',
format: data.meta.format || 'reactflow',
notes: data.meta.notes || '',
}
: { name: 'Untitled', format: 'reactflow', notes: '' };
const nodes: Node<CustomNodeData>[] = data.nodes.map((n, idx) => ({
id: String(n.id || `node_${idx}`),
type: n.type || 'custom',
position: n.position || { x: 0, y: 0 },
data: {
label: n.data?.label ?? '',
details: Array.isArray(n.data?.details) ? n.data.details : [],
...(n.data?.category ? { category: n.data.category } : {}),
},
}));
const edges: Edge[] = data.edges.map((e, idx) => ({
id: String(e.id || `edge_${idx}`),
source: String(e.source),
target: String(e.target),
sourceHandle: e.sourceHandle,
targetHandle: e.targetHandle,
type: e.type,
label: e.label,
}));
return { meta, nodes, edges };
};
const AppContent = () => {
const edgeUpdateSuccessful = useRef(true);
// Theme State (hardcoded)
const themeColor = '#6366f1';
const [nodes, setNodes, onNodesChangeBase] = useNodesState(DEFAULT_FLOW_TEMPLATE.nodes);
const [edges, setEdges, onEdgesChangeBase] = useEdgesState(DEFAULT_FLOW_TEMPLATE.edges);
const [mode, setMode] = useState<AppMode>(AppMode.EDIT);
const [toast, setToast] = useState<{ message: string; visible: boolean }>({
message: '',
visible: false,
});
const [workspaceHandle, setWorkspaceHandle] = useState<FileSystemDirectoryHandle | null>(null);
const [flowFiles, setFlowFiles] = useState<FlowFileEntry[]>([]);
const [selectedFlow, setSelectedFlow] = useState<FlowFileEntry | null>(null);
const [isFlowSidebarOpen, setIsFlowSidebarOpen] = useState(false);
const [flowDirty, setFlowDirty] = useState(false);
const [flowMenuAnchor, setFlowMenuAnchor] = useState<{
flow: FlowFileEntry;
rect: { top: number; left: number; right: number; bottom: number };
} | null>(null);
const isFileSystemSupported = typeof window !== 'undefined' && 'showDirectoryPicker' in window;
const onNodesChange: OnNodesChange = useCallback(
(changes) => {
if (changes.some((c) => c.type !== 'select')) setFlowDirty(true);
onNodesChangeBase(changes);
},
[onNodesChangeBase]
);
const onEdgesChange = useCallback(
(changes) => {
if (changes.some((c) => c.type !== 'select')) setFlowDirty(true);
onEdgesChangeBase(changes);
},
[onEdgesChangeBase]
);
const [visibleNodeIds, setVisibleNodeIds] = useState<Set<string>>(new Set());
const [activeNodeId, setActiveNodeId] = useState<string | null>(null);
// Log Lookup State
const [logSearchText, setLogSearchText] = useState('');
const [logHighlightedNodeIds, setLogHighlightedNodeIds] = useState<Set<string>>(new Set());
const [logHighlightedEdgeIds, setLogHighlightedEdgeIds] = useState<Set<string>>(new Set());
const [logMatchedNodeLabel, setLogMatchedNodeLabel] = useState<string | null>(null);
// Track the currently selected node for editing in sidebar
const selectedNode = useMemo(() => nodes.find(n => n.selected), [nodes]);
const selectedEdge = useMemo(() => edges.find(e => e.selected), [edges]);
const showToast = useCallback((message: string) => {
setToast({ message, visible: true });
setTimeout(() => setToast((prev) => ({ ...prev, visible: false })), 5000);
}, []);
// Log search: find matching node and trace path back to root
useEffect(() => {
const trimmed = logSearchText.trim();
if (trimmed.length === 0) {
setLogHighlightedNodeIds(new Set());
setLogHighlightedEdgeIds(new Set());
setLogMatchedNodeLabel(null);
return;
}
const timer = setTimeout(() => {
const lowerSearch = trimmed.toLowerCase();
// Find the target node whose details contain the search text
const targetNode = nodes.find((n) =>
n.data.details?.some((d) => d.toLowerCase().includes(lowerSearch))
);
if (!targetNode) {
setLogHighlightedNodeIds(new Set());
setLogHighlightedEdgeIds(new Set());
setLogMatchedNodeLabel(null);
return;
}
// BFS backward from target to find all paths to root nodes
const predecessorMap = new Map<string, { nodeId: string; edgeId: string }[]>();
edges.forEach((e) => {
if (!predecessorMap.has(e.target)) predecessorMap.set(e.target, []);
predecessorMap.get(e.target)!.push({ nodeId: e.source, edgeId: e.id });
});
// Find root nodes (no incoming edges)
const incomingTargets = new Set(edges.map((e) => e.target));
const rootNodeIds = new Set(nodes.filter((n) => !incomingTargets.has(n.id)).map((n) => n.id));
// BFS backward from target
const visitedNodes = new Set<string>([targetNode.id]);
const visitedEdges = new Set<string>();
const queue = [targetNode.id];
while (queue.length > 0) {
const current = queue.shift()!;
const preds = predecessorMap.get(current);
if (preds) {
for (const { nodeId, edgeId } of preds) {
visitedEdges.add(edgeId);
if (!visitedNodes.has(nodeId)) {
visitedNodes.add(nodeId);
queue.push(nodeId);
}
}
}
}
setLogHighlightedNodeIds(visitedNodes);
setLogHighlightedEdgeIds(visitedEdges);
setLogMatchedNodeLabel(targetNode.data.label);
}, 300);
return () => clearTimeout(timer);
}, [logSearchText, nodes, edges]);
const flowMenuPosition = useMemo(() => {
if (!flowMenuAnchor || typeof window === 'undefined') return null;
const width = 160;
const height = 84;
const left = Math.min(
flowMenuAnchor.rect.right - width,
window.innerWidth - width - 12
);
const topCandidate = flowMenuAnchor.rect.bottom + 6;
const top =
topCandidate + height > window.innerHeight
? flowMenuAnchor.rect.top - height - 6
: topCandidate;
return {
left: Math.max(12, left),
top: Math.max(12, top),
width,
};
}, [flowMenuAnchor]);
useEffect(() => {
if (!flowMenuAnchor) return;
const handlePointer = (event: MouseEvent) => {
const target = event.target as HTMLElement | null;
if (!target) return;
if (target.closest('[data-flow-menu]')) return;
if (target.closest('[data-flow-menu-trigger]')) return;
setFlowMenuAnchor(null);
};
const handleScroll = () => setFlowMenuAnchor(null);
document.addEventListener('mousedown', handlePointer);
window.addEventListener('scroll', handleScroll, true);
window.addEventListener('resize', handleScroll);
return () => {
document.removeEventListener('mousedown', handlePointer);
window.removeEventListener('scroll', handleScroll, true);
window.removeEventListener('resize', handleScroll);
};
}, [flowMenuAnchor]);
const readFlowFromHandle = useCallback(async (handle: FileSystemFileHandle) => {
const file = await handle.getFile();
const text = await file.text();
const raw = JSON.parse(text);
if (!isValidFlowData(raw)) {
throw new Error('Invalid flow file structure');
}
return normalizeFlowData(raw);
}, []);
const loadWorkspaceFlows = useCallback(async (handle: FileSystemDirectoryHandle) => {
const nextFlows: FlowFileEntry[] = [];
for await (const [name, entry] of handle.entries()) {
if (entry.kind !== 'file') continue;
const lowerName = name.toLowerCase();
if (!lowerName.endsWith('.json')) continue;
if (IGNORED_FLOW_FILES.has(lowerName)) continue;
try {
const flowHandle = entry as FileSystemFileHandle;
const parsed = await readFlowFromHandle(flowHandle);
if (!parsed.nodes.length && !parsed.edges.length) continue;
nextFlows.push({
name: stripJsonExtension(name),
fileName: name,
handle: flowHandle,
});
} catch (error) {
console.warn('Skipping invalid flow file:', name, error);
}
}
nextFlows.sort((a, b) => a.name.localeCompare(b.name));
return nextFlows;
}, [readFlowFromHandle]);
const refreshWorkspace = useCallback(async (handle: FileSystemDirectoryHandle) => {
const flows = await loadWorkspaceFlows(handle);
setFlowFiles(flows);
return flows;
}, [loadWorkspaceFlows]);
const handleImportWorkspace = useCallback(async () => {
console.info('Import flows clicked', {
supported: isFileSystemSupported,
hasWorkspace: Boolean(workspaceHandle),
});
if (!isFileSystemSupported) {
showToast('Folder access not supported in this browser');
return;
}
try {
const handle = await window.showDirectoryPicker();
console.info('Workspace selected', { name: handle?.name });
setWorkspaceHandle(handle);
setIsFlowSidebarOpen(true);
const flows = await refreshWorkspace(handle);
if (flows.length === 0) {
setSelectedFlow(null);
setNodes(DEFAULT_FLOW_TEMPLATE.nodes);
setEdges(DEFAULT_FLOW_TEMPLATE.edges);
setFlowDirty(false);
showToast('Workspace connected (no flows found)');
return;
}
const stillSelected = selectedFlow && flows.find((f) => f.fileName === selectedFlow.fileName);
const nextFlow = stillSelected || flows[0];
setSelectedFlow(nextFlow);
const flowData = await readFlowFromHandle(nextFlow.handle);
setNodes(flowData.nodes);
setEdges(flowData.edges);
setFlowDirty(false);
showToast('Workspace connected');
} catch (error: any) {
if (error?.name !== 'AbortError') {
console.error('Workspace import failed', error);
showToast(error?.message || 'Workspace import failed');
}
}
}, [isFileSystemSupported, readFlowFromHandle, refreshWorkspace, selectedFlow, setEdges, setNodes, showToast, workspaceHandle]);
const handleSelectFlow = useCallback(
async (flow: FlowFileEntry, options?: { force?: boolean }) => {
if (!workspaceHandle) return;
if (!options?.force && flowDirty && selectedFlow?.fileName !== flow.fileName) {
const shouldDiscard = confirm('You have unsaved changes. Switch flows and discard them?');
if (!shouldDiscard) return;
}
try {
const flowData = await readFlowFromHandle(flow.handle);
setNodes(flowData.nodes);
setEdges(flowData.edges);
setSelectedFlow(flow);
setFlowDirty(false);
setFlowMenuAnchor(null);
setVisibleNodeIds(new Set());
setActiveNodeId(null);
setMode(AppMode.EDIT);
} catch (error) {
console.error('Failed to load flow', error);
showToast('Failed to load flow');
}
},
[flowDirty, readFlowFromHandle, selectedFlow?.fileName, setEdges, setNodes, workspaceHandle, showToast]
);
const handleCreateFlow = useCallback(async () => {
if (!workspaceHandle) {
showToast('Select a workspace first');
return;
}
const input = prompt('New flow name');
if (!input) return;
const fileName = ensureJsonFileName(input);
if (!fileName) {
showToast('Flow name cannot be empty');
return;
}
if (flowFiles.some((f) => f.fileName.toLowerCase() === fileName.toLowerCase())) {
showToast('A flow with that name already exists');