README, config file

tools/preview_image.py

@@ -6,24 +6,29 @@ import datetime
 from pathlib import Path
 from typing import Any, Dict, List, Tuple
 from PIL import Image, ImageOps
+import config
 from tools.utils import format_relative_time, ToolError, get_file_info_list, sort_file_list, parse_indices
 
+
 logger = logging.getLogger("MattCP")
 
-def calculate_patch_dimensions(orig_w: int, orig_h: int, target_tokens: int = 70):
+def calculate_patch_dimensions(orig_w: int, orig_h: int, target_tokens: int = None):
     """
     Calculates optimal pixel dimensions to hit a token budget of at least target_tokens.
     Validates budget based on actual rounded pixel dimensions to avoid float precision errors.
     """
+    if target_tokens is None:
+        target_tokens = config.PREVIEW_TOKEN_BUDGET
+    
     ar = orig_w / orig_h
     
     # Case A: Width is the anchor (non-padded)
     w_anchor = 1
     while True:
-        w_px = w_anchor * 48
+        w_px = w_anchor * config.PATCH_SIZE
         h_px = round(w_px / ar)
         # Calculate actual tokens based on resulting pixel dimensions
-        tokens = math.ceil(w_px / 48) * math.ceil(h_px / 48)
+        tokens = math.ceil(w_px / config.PATCH_SIZE) * math.ceil(h_px / config.PATCH_SIZE)
         if tokens >= target_tokens:
             res_a = {"w": w_px, "h": h_px, "tokens": tokens}
             break
@@ -32,10 +37,10 @@ def calculate_patch_dimensions(orig_w: int, orig_h: int, target_tokens: int = 70
     # Case B: Height is the anchor (non-padded)
     h_anchor = 1
     while True:
-        h_px = h_anchor * 48
+        h_px = h_anchor * config.PATCH_SIZE
         w_px = round(h_px * ar)
         # Calculate actual tokens based on resulting pixel dimensions
-        tokens = math.ceil(w_px / 48) * math.ceil(h_px / 48)
+        tokens = math.ceil(w_px / config.PATCH_SIZE) * math.ceil(h_px / config.PATCH_SIZE)
         if tokens >= target_tokens:
             res_b = {"w": w_px, "h": h_px, "tokens": tokens}
             break
@@ -100,7 +105,7 @@ async def handle(args: Dict[str, Any]):
                 thumb.thumbnail((target_w, target_h), Image.Resampling.LANCZOS)
                 
                 buf = io.BytesIO()
-                thumb.save(buf, format='JPEG', quality=95)
+                thumb.save(buf, format='JPEG', quality=config.IMAGE_QUALITY)
                 img_data = base64.b64encode(buf.getvalue()).decode("utf-8")
                 
                 # Gather info