Spaces:
Runtime error
Runtime error
| import gradio as gr | |
| from groq import Groq | |
| from fpdf import FPDF | |
| import json | |
| import os | |
| import re | |
| from datetime import datetime | |
| # Initialize Groq client from environment variable | |
| GROQ_API_KEY = os.environ.get("GROQ_API_KEY") | |
| if not GROQ_API_KEY: | |
| raise ValueError("GROQ_API_KEY not found in environment variables. Please set it in Space Secrets.") | |
| client = Groq(api_key=GROQ_API_KEY) | |
| def clean_json_string(content): | |
| """Remove invalid control characters from JSON string""" | |
| content = re.sub(r'[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x9F]', '', content) | |
| return content | |
| def generate_roadmap(domain, level, time_available, time_unit): | |
| """Generate roadmap using Groq API""" | |
| if time_unit == "Weeks": | |
| total_weeks = int(time_available) | |
| elif time_unit == "Months": | |
| total_weeks = int(time_available) * 4 | |
| elif time_unit == "Years": | |
| total_weeks = int(time_available) * 52 | |
| system_prompt = """You are an expert educational curriculum designer. Return only valid JSON without any markdown formatting or explanatory text.""" | |
| user_prompt = f"""Create a detailed learning roadmap for {domain} at {level} level. | |
| Duration: {time_available} {time_unit.lower()} ({total_weeks} weeks). | |
| STRICT REQUIREMENTS: | |
| 1. Return ONLY valid JSON, no markdown, no backticks, no explanation | |
| 2. Use this exact structure: | |
| {{ | |
| "domain": "{domain}", | |
| "level": "{level}", | |
| "duration": "{time_available} {time_unit}", | |
| "overview": "Brief overview text here", | |
| "phases": [ | |
| {{ | |
| "phase_name": "Phase Name", | |
| "duration_weeks": number, | |
| "description": "Description here", | |
| "topics": [ | |
| {{ | |
| "name": "Topic name", | |
| "resources": ["resource 1", "resource 2"], | |
| "practice_project": "Project description" | |
| }} | |
| ], | |
| "milestones": ["milestone 1", "milestone 2"] | |
| }} | |
| ], | |
| "essential_resources": {{ | |
| "courses": ["course 1"], | |
| "books": ["book 1"], | |
| "communities": ["community 1"], | |
| "tools": ["tool 1"] | |
| }}, | |
| "tips_for_success": ["tip 1", "tip 2"], | |
| "next_steps": "What to do next" | |
| }} | |
| 3. Ensure all strings are properly escaped (no raw newlines or tabs in strings) | |
| 4. Use \\n for newlines within strings if needed""" | |
| try: | |
| response = client.chat.completions.create( | |
| model="llama-3.3-70b-versatile", | |
| messages=[ | |
| {"role": "system", "content": system_prompt}, | |
| {"role": "user", "content": user_prompt} | |
| ], | |
| temperature=0.7, | |
| max_tokens=4096 | |
| ) | |
| content = response.choices[0].message.content.strip() | |
| # Clean up markdown code blocks | |
| if content.startswith("```json"): | |
| content = content[7:] | |
| elif content.startswith("```"): | |
| content = content[3:] | |
| if content.endswith("```"): | |
| content = content[:-3] | |
| content = content.strip() | |
| content = clean_json_string(content) | |
| # Try to parse JSON | |
| try: | |
| data = json.loads(content) | |
| return data | |
| except json.JSONDecodeError as e: | |
| # Try to fix common issues | |
| content = re.sub(r'(".*?)\n(.*?")', r'\1\\n\2', content, flags=re.DOTALL) | |
| content = re.sub(r'(".*?)\t(.*?")', r'\1\\t\2', content, flags=re.DOTALL) | |
| data = json.loads(content) | |
| return data | |
| except Exception as e: | |
| return {"error": f"Failed to generate roadmap: {str(e)}"} | |
| def format_roadmark_for_display(roadmap_data): | |
| """Format roadmap as HTML""" | |
| if "error" in roadmap_data: | |
| return f"<p style='color:red; padding:20px;'>{roadmap_data['error']}</p>", None | |
| try: | |
| html_output = f""" | |
| <div style="font-family: 'Segoe UI', sans-serif; max-width: 900px; margin: 0 auto;"> | |
| <div style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; border-radius: 15px; margin-bottom: 20px;"> | |
| <h1 style="margin: 0;">🎯 {roadmap_data.get('domain', 'Unknown')} Roadmap</h1> | |
| <p>Level: {roadmap_data.get('level', 'N/A')} | Duration: {roadmap_data.get('duration', 'N/A')}</p> | |
| </div> | |
| <div style="background: #f8f9fa; padding: 20px; border-radius: 10px; margin-bottom: 20px;"> | |
| <h3>Overview</h3> | |
| <p>{roadmap_data.get('overview', 'No overview provided').replace(chr(10), '<br>')}</p> | |
| </div> | |
| """ | |
| for i, phase in enumerate(roadmap_data.get('phases', []), 1): | |
| html_output += f""" | |
| <div style="border: 2px solid #e9ecef; border-radius: 15px; margin-bottom: 20px; overflow: hidden;"> | |
| <div style="background: #667eea; color: white; padding: 15px;"> | |
| <h3 style="margin:0;">Phase {i}: {phase.get('phase_name', 'Unnamed')}</h3> | |
| <p style="margin:5px 0 0 0;">Duration: {phase.get('duration_weeks', 'N/A')} weeks</p> | |
| </div> | |
| <div style="padding: 20px;"> | |
| <p>{phase.get('description', '').replace(chr(10), '<br>')}</p> | |
| <h4>Topics:</h4> | |
| """ | |
| for topic in phase.get('topics', []): | |
| html_output += f"<div style='background:#f8f9fa; padding:10px; margin:10px 0; border-radius:5px;'>" | |
| html_output += f"<p style='margin:0;'><b>{topic.get('name', 'Unnamed')}</b></p>" | |
| html_output += f"<ul style='margin:5px 0;'>" | |
| for res in topic.get('resources', []): | |
| html_output += f"<li>{res}</li>" | |
| html_output += f"</ul>" | |
| html_output += f"<p style='background:#fff3cd; padding:5px; margin:5px 0; border-radius:3px;'><b>Project:</b> {topic.get('practice_project', 'N/A')}</p>" | |
| html_output += f"</div>" | |
| if phase.get('milestones'): | |
| html_output += f"<h4>Milestones:</h4><ul>" | |
| for ms in phase['milestones']: | |
| html_output += f"<li>☐ {ms}</li>" | |
| html_output += f"</ul>" | |
| html_output += "</div></div>" | |
| html_output += "</div>" | |
| return html_output, json.dumps(roadmap_data) | |
| except Exception as e: | |
| return f"<p style='color:red; padding:20px;'>Error formatting display: {str(e)}</p>", None | |
| def generate_pdf(roadmap_data, domain): | |
| """Generate PDF file""" | |
| try: | |
| if isinstance(roadmap_data, str): | |
| roadmap_data = json.loads(roadmap_data) | |
| if not roadmap_data or "error" in roadmap_data: | |
| return None | |
| pdf = FPDF() | |
| pdf.set_auto_page_break(auto=True, margin=15) | |
| def clean(text): | |
| if text is None: | |
| return "" | |
| text = str(text) | |
| return text.encode('latin-1', 'replace').decode('latin-1') | |
| # Title Page | |
| pdf.add_page() | |
| pdf.set_font("Arial", 'B', 24) | |
| pdf.set_text_color(102, 126, 234) | |
| pdf.cell(0, 20, clean(f"Learning Roadmap: {roadmap_data.get('domain', domain)}"), ln=True, align='C') | |
| pdf.set_font("Arial", '', 12) | |
| pdf.set_text_color(100, 100, 100) | |
| pdf.cell(0, 10, clean(f"Level: {roadmap_data.get('level', 'N/A')} | Duration: {roadmap_data.get('duration', 'N/A')}"), ln=True, align='C') | |
| pdf.ln(10) | |
| # Overview | |
| pdf.set_font("Arial", 'B', 16) | |
| pdf.set_text_color(0, 0, 0) | |
| pdf.cell(0, 10, "Overview", ln=True) | |
| pdf.set_font("Arial", '', 11) | |
| pdf.multi_cell(0, 6, clean(roadmap_data.get('overview', 'No overview'))) | |
| pdf.ln(5) | |
| # Phases | |
| for i, phase in enumerate(roadmap_data.get('phases', []), 1): | |
| pdf.add_page() | |
| pdf.set_font("Arial", 'B', 18) | |
| pdf.set_fill_color(102, 126, 234) | |
| pdf.set_text_color(255, 255, 255) | |
| pdf.cell(0, 12, clean(f"Phase {i}: {phase.get('phase_name', f'Phase {i}')}"), ln=True, fill=True) | |
| pdf.set_text_color(100, 100, 100) | |
| pdf.set_font("Arial", 'I', 11) | |
| pdf.cell(0, 8, f"Duration: {phase.get('duration_weeks', 'N/A')} weeks", ln=True) | |
| pdf.ln(2) | |
| pdf.set_text_color(0, 0, 0) | |
| pdf.set_font("Arial", '', 11) | |
| pdf.multi_cell(0, 6, clean(phase.get('description', ''))) | |
| pdf.ln(5) | |
| pdf.set_font("Arial", 'B', 13) | |
| pdf.set_text_color(102, 126, 234) | |
| pdf.cell(0, 8, "Topics & Resources:", ln=True) | |
| for topic in phase.get('topics', []): | |
| pdf.set_font("Arial", 'B', 11) | |
| pdf.set_text_color(0, 0, 0) | |
| pdf.cell(0, 6, clean(f"- {topic.get('name', 'Topic')}"), ln=True) | |
| pdf.set_font("Arial", '', 10) | |
| pdf.set_text_color(80, 80, 80) | |
| for resource in topic.get('resources', []): | |
| pdf.cell(10) | |
| pdf.cell(0, 5, clean(f" * {resource}"), ln=True) | |
| pdf.set_text_color(200, 100, 0) | |
| pdf.set_font("Arial", 'B', 10) | |
| pdf.cell(0, 5, clean(f"Project: {topic.get('practice_project', 'N/A')}"), ln=True) | |
| pdf.ln(3) | |
| if phase.get('milestones'): | |
| pdf.set_font("Arial", 'B', 12) | |
| pdf.set_text_color(40, 167, 69) | |
| pdf.cell(0, 8, "Milestones:", ln=True) | |
| pdf.set_font("Arial", '', 10) | |
| pdf.set_text_color(0, 0, 0) | |
| for milestone in phase.get('milestones', []): | |
| pdf.cell(10) | |
| pdf.cell(0, 5, clean(f"[ ] {milestone}"), ln=True) | |
| pdf.ln(5) | |
| # Resources | |
| if roadmap_data.get('essential_resources'): | |
| pdf.add_page() | |
| pdf.set_font("Arial", 'B', 18) | |
| pdf.set_fill_color(102, 126, 234) | |
| pdf.set_text_color(255, 255, 255) | |
| pdf.cell(0, 12, "Essential Resources", ln=True, fill=True) | |
| pdf.ln(5) | |
| resources = roadmap_data['essential_resources'] | |
| sections = [ | |
| ("Recommended Courses", resources.get('courses', [])), | |
| ("Books", resources.get('books', [])), | |
| ("Communities", resources.get('communities', [])), | |
| ("Tools", resources.get('tools', [])) | |
| ] | |
| for title, items in sections: | |
| if items: | |
| pdf.set_font("Arial", 'B', 13) | |
| pdf.set_text_color(102, 126, 234) | |
| pdf.cell(0, 8, clean(title), ln=True) | |
| pdf.set_font("Arial", '', 10) | |
| pdf.set_text_color(0, 0, 0) | |
| for item in items: | |
| pdf.cell(5) | |
| pdf.cell(0, 5, clean(f"- {item}"), ln=True) | |
| pdf.ln(3) | |
| # Save to /tmp for Hugging Face | |
| safe_domain = "".join(c for c in domain if c.isalnum() or c in (' ', '-', '_')).rstrip().replace(' ', '_') or "roadmap" | |
| filename = f"roadmap_{safe_domain}_{datetime.now().strftime('%Y%m%d')}.pdf" | |
| filepath = os.path.join("/tmp", filename) | |
| pdf.output(filepath) | |
| return filepath | |
| except Exception as e: | |
| print(f"PDF Error: {e}") | |
| return None | |
| # Build Gradio Interface | |
| def create_app(): | |
| with gr.Blocks(title="AI Learning Roadmap Generator") as app: | |
| roadmap_json = gr.State("") | |
| domain_name = gr.State("") | |
| gr.Markdown("# 🎯 AI Learning Roadmap Generator") | |
| gr.Markdown("Generate personalized learning paths for any skill domain") | |
| with gr.Row(): | |
| with gr.Column(scale=1): | |
| domain_input = gr.Textbox(label="Learning Domain", placeholder="e.g., Machine Learning, Web Development...") | |
| level_input = gr.Dropdown(["Beginner", "Intermediate", "Advanced"], label="Level", value="Beginner") | |
| with gr.Row(): | |
| time_input = gr.Number(value=3, minimum=1, label="Time") | |
| time_unit = gr.Dropdown(["Weeks", "Months", "Years"], value="Months", label="Unit") | |
| generate_btn = gr.Button("🚀 Generate Roadmap", variant="primary") | |
| gr.Examples( | |
| [["Machine Learning", "Beginner", 6, "Months"], | |
| ["Web Development", "Intermediate", 4, "Months"], | |
| ["Python Programming", "Beginner", 8, "Weeks"]], | |
| inputs=[domain_input, level_input, time_input, time_unit] | |
| ) | |
| with gr.Column(scale=2): | |
| html_output = gr.HTML(label="Your Roadmap") | |
| with gr.Row(): | |
| download_btn = gr.Button("📄 Download PDF", variant="primary", visible=False) | |
| pdf_output = gr.File(label="Your PDF", interactive=False, visible=False) | |
| def generate(domain, level, time_val, unit): | |
| if not domain or not domain.strip(): | |
| return "Please enter a domain", gr.update(visible=False), gr.update(visible=False), "", "" | |
| result = generate_roadmap(domain, level, time_val, unit) | |
| if "error" in result: | |
| return f"<p style='color:red; padding:20px;'>❌ {result['error']}</p>", gr.update(visible=False), gr.update(visible=False), "", "" | |
| html, json_str = format_roadmark_for_display(result) | |
| if json_str is None: | |
| return html, gr.update(visible=False), gr.update(visible=False), "", "" | |
| return html, gr.update(visible=True), gr.update(visible=True), json_str, domain | |
| def download(json_data, dom): | |
| if not json_data: | |
| return None | |
| return generate_pdf(json_data, dom) | |
| generate_btn.click( | |
| fn=generate, | |
| inputs=[domain_input, level_input, time_input, time_unit], | |
| outputs=[html_output, download_btn, pdf_output, roadmap_json, domain_name] | |
| ) | |
| download_btn.click( | |
| fn=download, | |
| inputs=[roadmap_json, domain_name], | |
| outputs=pdf_output | |
| ) | |
| return app | |
| app = create_app() | |
| app.launch() |