feat: Add custom AI system prompt functionality

.gitignore

@@ -22,3 +22,6 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+# Python cache
+__pycache__/

src/App.jsx

@@ -1,5 +1,6 @@
 // 📦 Imports
 import React, { useState, useRef } from 'react';
+import SettingsModal from './SettingsModal';
 import ReactFlow, {
   Background,
   Controls,
@@ -17,6 +18,18 @@ const initialNodes = [];
 const initialEdges = [];
 let nodeId = 1;
 
+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 getColor = (type) => {
   switch (type) {
     case 'positive': return '#00c853';
@@ -27,7 +40,7 @@ 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 +50,7 @@ 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 +99,7 @@ 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) {
@@ -113,6 +116,10 @@ export default function App() {
   const [edges, setEdges] = useState(initialEdges);
   const [prompt, setPrompt] = useState('');
   const [loading, setLoading] = useState(false);
+  const [isSettingsOpen, setIsSettingsOpen] = useState(false);
+  const [systemPrompt, setSystemPrompt] = useState(
+    localStorage.getItem('customSystemPrompt') || defaultSystemPrompt
+  );
   const stopGenerationRef = useRef(false);
   const reactFlowWrapper = useRef(null);
 
@@ -126,6 +133,16 @@ export default function App() {
     }
   };
 
+  const handleSaveSystemPrompt = (newPrompt) => {
+    setSystemPrompt(newPrompt);
+    localStorage.setItem('customSystemPrompt', newPrompt);
+  };
+
+  const handleResetSystemPrompt = () => {
+    setSystemPrompt(defaultSystemPrompt);
+    localStorage.removeItem('customSystemPrompt');
+  };
+
   const handleSubmit = async () => {
     if (!prompt.trim()) return;
     setLoading(true);
@@ -150,7 +167,7 @@ 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 +181,7 @@ 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);
   };
 
@@ -246,6 +263,20 @@ export default function App() {
           >
             Export as PNG
           </button>
+          <button
+            onClick={() => setIsSettingsOpen(true)}
+            style={{
+              padding: '10px 20px',
+              backgroundColor: '#6c757d',
+              color: 'white',
+              border: 'none',
+              borderRadius: '8px',
+              fontWeight: 'bold',
+              cursor: 'pointer',
+            }}
+          >
+            Settings
+          </button>
         </div>
       </div>
 
@@ -265,6 +296,13 @@ export default function App() {
           <Background variant="dots" gap={12} size={1} />
         </ReactFlow>
       </div>
+      <SettingsModal
+        isOpen={isSettingsOpen}
+        onClose={() => setIsSettingsOpen(false)}
+        onSave={handleSaveSystemPrompt}
+        onReset={handleResetSystemPrompt}
+        systemPrompt={systemPrompt}
+      />
     </div>
   );
 }

src/SettingsModal.jsx

@@ -0,0 +1,118 @@
+import React, { useState, useEffect } from 'react';
+
+const SettingsModal = ({ isOpen, onClose, onSave, onReset, systemPrompt }) => {
+  const [prompt, setPrompt] = useState(systemPrompt);
+
+  useEffect(() => {
+    setPrompt(systemPrompt);
+  }, [systemPrompt, isOpen]);
+
+  const handleSave = () => {
+    onSave(prompt);
+    onClose();
+  };
+
+  const handleReset = () => {
+    onReset();
+    onClose();
+  };
+
+  if (!isOpen) return null;
+
+  return (
+    <div style={styles.overlay}>
+      <div style={styles.modal} role="dialog" aria-labelledby="dialog-header">
+        <h2 id="dialog-header" style={styles.header}>AI Settings</h2>
+        <p style={styles.label}>System Prompt:</p>
+        <textarea
+          value={prompt}
+          onChange={(e) => setPrompt(e.target.value)}
+          style={styles.textarea}
+          placeholder="Enter custom AI system prompt..."
+        />
+        <div style={styles.buttonContainer}>
+          <button onClick={handleSave} style={styles.saveButton}>Save</button>
+          <button onClick={handleReset} style={styles.resetButton}>Reset to Default</button>
+          <button onClick={onClose} style={styles.closeButton}>Close</button>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+const styles = {
+  overlay: {
+    position: 'fixed',
+    top: 0,
+    left: 0,
+    right: 0,
+    bottom: 0,
+    backgroundColor: 'rgba(0, 0, 0, 0.7)',
+    display: 'flex',
+    justifyContent: 'center',
+    alignItems: 'center',
+    zIndex: 1000,
+  },
+  modal: {
+    backgroundColor: '#333',
+    padding: '2rem',
+    borderRadius: '12px',
+    width: '500px',
+    color: '#fff',
+    boxShadow: '0 5px 15px rgba(0,0,0,0.3)',
+  },
+  header: {
+    marginTop: 0,
+    marginBottom: '1.5rem',
+    borderBottom: '1px solid #555',
+    paddingBottom: '1rem',
+  },
+  label: {
+    marginBottom: '0.5rem',
+    color: '#ccc',
+  },
+  textarea: {
+    width: '100%',
+    minHeight: '150px',
+    padding: '10px',
+    borderRadius: '8px',
+    border: '1px solid #555',
+    color: '#fff',
+    backgroundColor: '#444',
+    marginBottom: '1.5rem',
+    boxSizing: 'border-box',
+    fontSize: '1rem',
+  },
+  buttonContainer: {
+    display: 'flex',
+    justifyContent: 'flex-end',
+    gap: '0.75rem',
+  },
+  saveButton: {
+    padding: '10px 20px',
+    backgroundColor: '#00bcd4',
+    color: 'white',
+    border: 'none',
+    borderRadius: '8px',
+    fontWeight: 'bold',
+    cursor: 'pointer',
+  },
+  resetButton: {
+    padding: '10px 20px',
+    backgroundColor: '#ff4d4d',
+    color: '#fff',
+    border: 'none',
+    borderRadius: '8px',
+    cursor: 'pointer',
+  },
+  closeButton: {
+    padding: '10px 20px',
+    backgroundColor: '#666',
+    color: 'white',
+    border: 'none',
+    borderRadius: '8px',
+    cursor: 'pointer',
+  },
+};
+
+export default SettingsModal;