Update app.py

app.py

@@ -17,7 +17,13 @@ def is_pdflatex_installed():
 def latex_to_pdf(latex_code):
     # Check if pdflatex is installed
     if not is_pdflatex_installed():
-        return None, "", "Error: pdflatex is not installed or not in PATH. Check Dockerfile configuration."
+        st.error("pdflatex not found. Debug info:")
+        st.code(f"PATH: {os.environ.get('PATH')}")
+        result = subprocess.run(["which", "pdflatex"], capture_output=True, text=True)
+        st.code(f"which pdflatex: {result.stdout} {result.stderr}")
+        result = subprocess.run(["ls", "-la", "/usr/bin/pdflatex"], capture_output=True, text=True)
+        st.code(f"ls -la /usr/bin/pdflatex: {result.stdout} {result.stderr}")
+        return None, "", "Error: pdflatex is not installed or not in PATH."
     
     with tempfile.TemporaryDirectory() as temp_dir:
         temp_path = Path(temp_dir)
@@ -29,13 +35,9 @@ def latex_to_pdf(latex_code):
             f.write(latex_code)
         
         try:
-            # Print the command being run for debugging
-            cmd = ["pdflatex", "-interaction=nonstopmode", "-output-directory", temp_dir, str(tex_file)]
-            st.write(f"Running command: {' '.join(cmd)}")
-            
-            # Run pdflatex with full path if needed
+            # Run pdflatex to compile the LaTeX file
             process = subprocess.run(
-                cmd,
+                ["pdflatex", "-interaction=nonstopmode", "-output-directory", temp_dir, str(tex_file)],
                 capture_output=True,
                 text=True
             )
@@ -48,8 +50,7 @@ def latex_to_pdf(latex_code):
             else:
                 return None, process.stdout, process.stderr
         except Exception as e:
-            return None, "", f"Error executing pdflatex: {str(e)}"
-
+            return None, "", str(e)
 
 # Function to display PDF
 def display_pdf(pdf_data):
@@ -301,28 +302,17 @@ st.markdown("""
 </style>
 """, unsafe_allow_html=True)
 
-# JavaScript for copying commands to editor
-st.markdown("""
-<script>
-function copyToEditor(text) {
-    const textareas = document.getElementsByTagName('textarea');
-    if (textareas.length > 0) {
-        const editor = textareas[0];
-        const start = editor.selectionStart;
-        const end = editor.selectionEnd;
-        const value = editor.value;
-        editor.value = value.substring(0, start) + text + value.substring(end);
-        editor.selectionStart = editor.selectionEnd = start + text.length;
-        editor.focus();
-    }
-}
-</script>
-""", unsafe_allow_html=True)
-
 # Main application
 def main():
     st.title("LaTeX Editor & PDF Compiler")
     
+    # Display installation status
+    if not is_pdflatex_installed():
+        st.warning("⚠️ LaTeX is not installed correctly. The PDF compilation feature will not work.")
+        st.info("For Hugging Face Spaces, make sure you have a packages.txt file with the necessary LaTeX packages.")
+    else:
+        st.success("✅ LaTeX is installed and ready to use!")
+    
     # Create layout with sidebar
     col1, col2 = st.columns([3, 2])
     
@@ -431,13 +421,13 @@ def main():
             for category, commands in latex_commands.items():
                 with st.expander(category):
                     for cmd, desc in commands.items():
-                        st.markdown(f"<div class='latex-command' onclick=\"copyToEditor('{cmd}')\">{cmd}</div> - {desc}", unsafe_allow_html=True)
+                        st.markdown(f"<div class='latex-command'>{cmd}</div> - {desc}", unsafe_allow_html=True)
         
         with tabs[1]:
             for category, packages in latex_packages.items():
                 with st.expander(category):
                     for pkg, desc in packages.items():
-                        st.markdown(f"<div class='latex-command' onclick=\"copyToEditor('{pkg}')\">{pkg}</div> - {desc}", unsafe_allow_html=True)
+                        st.markdown(f"<div class='latex-command'>{pkg}</div> - {desc}", unsafe_allow_html=True)
 
 if __name__ == "__main__":
     main()