Update app.py

app.py

@@ -1,8 +1,7 @@
 ##############################################################################
 # Sozo Business Studio · 10-Jul-2025
-# • FIXED: Implemented comprehensive logging throughout the video generation pipeline.
-# • FIXED: Corrected the animation engine to render scatter, line, and hist plots correctly.
-# • NOTE: The user's prompts, classes, and AI calls are preserved exactly.
+# • FIXED: Corrected the 'name 'spec' is not defined' error in the safe_chart function.
+# • NOTE: This is the only change. The user's prompts, classes, and AI calls are preserved exactly.
 ##############################################################################
 
 import os, re, json, hashlib, uuid, base64, io, tempfile, requests, subprocess, inspect, logging
@@ -28,7 +27,6 @@ from google import genai
 from google.genai import types
 
 # ─── CONFIG & LOGGING ──────────────────────────────────────────────────────
-# FIXED: Set up comprehensive logging
 logging.basicConfig(
     level=logging.INFO,
     format='%(asctime)s - %(levelname)s - [%(funcName)s] - %(message)s',
@@ -231,7 +229,6 @@ def prepare_plot_data(spec: ChartSpecification, df: pd.DataFrame) -> pd.Series:
 
 # ─── FIXED ANIMATION SYSTEM ───────────────────────────────────────────────
 def animate_chart(spec: ChartSpecification, df: pd.DataFrame, dur: float, out: Path, fps: int = FPS) -> str:
-    """FIXED: Renders a reliable animated chart with correct logic for each chart type."""
     logging.info(f"Animating chart '{spec.title}' ({spec.chart_type}) for {dur:.2f}s")
     plot_data = prepare_plot_data(spec, df)
     frames = max(10, int(dur * fps))
@@ -294,12 +291,13 @@ def animate_image_fade(img: np.ndarray, dur: float, out: Path, fps: int = 24) ->
     return str(out)
 
 def safe_chart(desc: str, df: pd.DataFrame, dur: float, out: Path) -> str:
-    """FIXED: A simplified and more reliable chart generation wrapper."""
+    """FIXED: This function now correctly calls the animation engine."""
     try:
         llm = ChatGoogleGenerativeAI(model="gemini-2.0-flash", google_api_key=API_KEY, temperature=0.1)
         chart_generator = create_chart_generator(llm, df)
         chart_spec = chart_generator.generate_chart_spec(desc)
-        return animate_chart(spec, df, dur, out)
+        # FIXED: Corrected variable name from 'spec' to 'chart_spec'
+        return animate_chart(chart_spec, df, dur, out)
     except Exception as e:
         logging.error(f"Chart animation failed for '{desc}': {e}. Falling back to static image.")
         temp_png = out.with_suffix(".png")
@@ -317,7 +315,6 @@ def safe_chart(desc: str, df: pd.DataFrame, dur: float, out: Path) -> str:
             return animate_image_fade(img_cv, dur, out)
 
 def concat_media(file_paths: List[str], output_path: Path, media_type: str):
-    """FIXED: Concatenate multiple media files using FFmpeg, robustly checking for valid files."""
     logging.info(f"Concatenating {len(file_paths)} {media_type} files.")
     valid_paths = [p for p in file_paths if Path(p).exists() and Path(p).stat().st_size > 100]
     if not valid_paths: