feat: Add settings modal for customizable AI system prompt

.gitignore

@@ -22,3 +22,4 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+__pycache__/

src/App.jsx

@@ -1,5 +1,6 @@
 // 📦 Imports
 import React, { useState, useRef } from 'react';
+import SettingsModal from './SettingsModal';
 import ReactFlow, {
   Background,
   Controls,
@@ -13,6 +14,17 @@ import html2canvas from 'html2canvas';
 import { saveAs } from 'file-saver';
 
 // 🧠 Initial State & Helpers
+const defaultSystemPrompt = `You are an expert in cause-and-effect analysis.
+
+Given a news headline or event, break it down into a chain of consequences, like a domino effect.
+
+Each node must:
+- Be short (max 15 words)
+- Represent one specific consequence
+- Be categorized as either: 'positive', 'neutral', or 'negative'
+- Be logically linked to the prompt
+
+Return only 3 outputs: one of each type.`;
 const initialNodes = [];
 const initialEdges = [];
 let nodeId = 1;
@@ -27,7 +39,7 @@ const getColor = (type) => {
 };
 
 // 🤖 AI Logic with Domino Effect Thinking (Updated: Using Puter AI API)
-const createAIChildren = async (text, parentId, setNodes, setEdges, stopGenerationRef) => {
+const createAIChildren = async (text, parentId, setNodes, setEdges, stopGenerationRef, systemPrompt) => {
   try {
     if (stopGenerationRef.current) return;
     const res = await axios.post(
@@ -37,17 +49,7 @@ const createAIChildren = async (text, parentId, setNodes, setEdges, stopGenerati
         messages: [
           {
             role: 'system',
-            content: `You are an expert in cause-and-effect analysis.
-
-Given a news headline or event, break it down into a chain of consequences, like a domino effect.
-
-Each node must:
-- Be short (max 15 words)
-- Represent one specific consequence
-- Be categorized as either: 'positive', 'neutral', or 'negative'
-- Be logically linked to the prompt
-
-Return only 3 outputs: one of each type.`
+            content: systemPrompt,
           },
           { role: 'user', content: text }
         ]
@@ -96,7 +98,7 @@ Return only 3 outputs: one of each type.`
     // Recursively expand each child one level deep
     for (const n of newNodes) {
       if (stopGenerationRef.current) break;
-      await createAIChildren(n.data.label, n.id, setNodes, setEdges, stopGenerationRef);
+      await createAIChildren(n.data.label, n.id, setNodes, setEdges, stopGenerationRef, systemPrompt);
     }
 
   } catch (err) {
@@ -113,9 +115,18 @@ export default function App() {
   const [edges, setEdges] = useState(initialEdges);
   const [prompt, setPrompt] = useState('');
   const [loading, setLoading] = useState(false);
+  const [showSettings, setShowSettings] = useState(false);
+  const [systemPrompt, setSystemPrompt] = useState(
+    localStorage.getItem('systemPrompt') || defaultSystemPrompt
+  );
   const stopGenerationRef = useRef(false);
   const reactFlowWrapper = useRef(null);
 
+  const handleSaveSystemPrompt = (newPrompt) => {
+    setSystemPrompt(newPrompt);
+    localStorage.setItem('systemPrompt', newPrompt);
+  };
+
   const handleExport = () => {
     if (reactFlowWrapper.current) {
       html2canvas(reactFlowWrapper.current).then((canvas) => {
@@ -150,7 +161,7 @@ export default function App() {
     setNodes([rootNode]);
     setEdges([]);
 
-    await createAIChildren(prompt, rootId, setNodes, setEdges, stopGenerationRef);
+    await createAIChildren(prompt, rootId, setNodes, setEdges, stopGenerationRef, systemPrompt);
 
     setPrompt('');
     setLoading(false);
@@ -164,7 +175,7 @@ export default function App() {
   const onNodeClick = async (_event, node) => {
     stopGenerationRef.current = false;
     setLoading(true);
-    await createAIChildren(node.data.label, node.id, setNodes, setEdges, stopGenerationRef);
+    await createAIChildren(node.data.label, node.id, setNodes, setEdges, stopGenerationRef, systemPrompt);
     setLoading(false);
   };
 
@@ -246,9 +257,30 @@ export default function App() {
           >
             Export as PNG
           </button>
+          <button
+            onClick={() => setShowSettings(true)}
+            style={{
+              padding: '10px 20px',
+              backgroundColor: '#6c757d',
+              color: 'white',
+              border: 'none',
+              borderRadius: '8px',
+              fontWeight: 'bold',
+              cursor: 'pointer',
+            }}
+          >
+            Settings
+          </button>
         </div>
       </div>
 
+      <SettingsModal
+        show={showSettings}
+        systemPrompt={systemPrompt}
+        onSave={handleSaveSystemPrompt}
+        onClose={() => setShowSettings(false)}
+      />
+
       {/* 🧠 ReactFlow Canvas */}
       <div style={{ flexGrow: 1 }} ref={reactFlowWrapper}>
         <ReactFlow

src/SettingsModal.jsx

@@ -0,0 +1,61 @@
+import React, { useState } from 'react';
+
+const SettingsModal = ({ show, systemPrompt, onSave, onClose }) => {
+  const [newPrompt, setNewPrompt] = useState(systemPrompt);
+
+  const handleSave = () => {
+    onSave(newPrompt);
+    onClose();
+  };
+
+  if (!show) {
+    return null;
+  }
+
+  return (
+    <div style={{
+      position: 'fixed',
+      top: 0,
+      left: 0,
+      width: '100%',
+      height: '100%',
+      backgroundColor: 'rgba(0, 0, 0, 0.5)',
+      display: 'flex',
+      justifyContent: 'center',
+      alignItems: 'center',
+      zIndex: 1000,
+    }}>
+      <div style={{
+        backgroundColor: '#333',
+        padding: '2rem',
+        borderRadius: '8px',
+        width: '500px',
+        display: 'flex',
+        flexDirection: 'column',
+        gap: '1rem',
+      }}>
+        <h2 style={{ color: '#fff', margin: 0 }}>Settings</h2>
+        <textarea
+          value={newPrompt}
+          onChange={(e) => setNewPrompt(e.target.value)}
+          style={{
+            width: '100%',
+            height: '200px',
+            borderRadius: '8px',
+            border: '1px solid #555',
+            color: '#fff',
+            backgroundColor: '#222',
+            padding: '10px',
+            boxSizing: 'border-box',
+          }}
+        />
+        <div style={{ display: 'flex', justifyContent: 'flex-end', gap: '1rem' }}>
+          <button onClick={onClose} style={{ padding: '10px 20px', borderRadius: '8px', border: 'none', backgroundColor: '#555', color: '#fff' }}>Close</button>
+          <button onClick={handleSave} style={{ padding: '10px 20px', borderRadius: '8px', border: 'none', backgroundColor: '#00bcd4', color: '#fff' }}>Save</button>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default SettingsModal;