Update main.py

main.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-import os, sys, subprocess, json
+import os, sys, subprocess, json, argparse
 
 def ffprobe_json(path):
     out = subprocess.check_output([
@@ -12,19 +12,54 @@ def run(cmd):
     print("running:", " ".join(cmd))
     subprocess.run(cmd, check=True)
 
-# --- interactive prompts ---
+# --- argument parsing ---
-input_dir = input("Enter directory containing .m4b files: ").strip()
+parser = argparse.ArgumentParser(
+    description="Merge multiple .m4b audiobook files into one with chapters."
+)
+parser.add_argument(
+    "input_dir",
+    nargs="?",
+    help="Directory containing .m4b files (can drag-and-drop). If omitted, you will be prompted."
+)
+parser.add_argument(
+    "-a", "--all",
+    action="store_true",
+    help="Automatically select all .m4b files (skips range prompt)."
+)
+parser.add_argument(
+   "-d","--delete",
+    action="store_true",
+    help="Delete the original files that were merged (no prompt)."
+)
+parser.add_argument(
+    "-o", "--output",
+    help="Final output filename (with or without .m4b extension)."
+)
+
+args = parser.parse_args()
+
+# --- input dir handling ---
+if args.input_dir:
+    input_dir = args.input_dir.strip()
+else:
+    input_dir = input("Enter directory containing .m4b files (or drag folder here): ").strip()
 
 # strip accidental surrounding quotes
 if (input_dir.startswith("'") and input_dir.endswith("'")) or \
    (input_dir.startswith('"') and input_dir.endswith('"')):
     input_dir = input_dir[1:-1]
 
+# replace escaped spaces only
+input_dir = input_dir.replace(r"\ ", " ")
+
+# normalize
+input_dir = os.path.normpath(input_dir)
+
 if not os.path.isdir(input_dir):
     print("❌ Path not found or not a directory:", input_dir)
     sys.exit(1)
 
-# collect .m4b files robustly (avoid glob issues with [])
+# collect .m4b files robustly
 all_files = [f for f in os.listdir(input_dir)
              if os.path.isfile(os.path.join(input_dir, f)) and f.lower().endswith(".m4b")]
 
@@ -32,7 +67,6 @@ if not all_files:
     print("❌ No .m4b files found in that directory.")
     sys.exit(1)
 
-# sort (simple lexicographic; change if you want natural sort)
 all_files = sorted(all_files, key=lambda s: s.lower())
 
 print("\nFound the following .m4b files:")
@@ -40,21 +74,23 @@ for idx, fname in enumerate(all_files, start=1):
     print(f"[{idx}] {fname}")
 
 # range selection
-rng = input("\nEnter range to merge (e.g. 1-10) or single number (e.g. 5) [Enter = all]: ").strip()
+if args.all:
-
+    start, end = 1, len(all_files)
-try:
+else:
-    if not rng:  # empty input -> select all
+    rng = input("\nEnter range to merge (e.g. 1-10) or single number (e.g. 5) [Enter = all]: ").strip()
-        start, end = 1, len(all_files)
+    try:
-    elif "-" in rng:
+        if not rng:  # empty input = all
-        a, b = rng.split("-", 1)
+            start, end = 1, len(all_files)
-        start, end = int(a), int(b)
+        elif "-" in rng:
-    else:
+            a, b = rng.split("-", 1)
-        start = int(rng)
+            start, end = int(a), int(b)
-        end = start
+        else:
-    assert 1 <= start <= end <= len(all_files)
+            start = int(rng)
-except Exception:
+            end = start
-    print("❌ Invalid range. Use start-end where numbers are within the shown list.")
+        assert 1 <= start <= end <= len(all_files)
-    sys.exit(1)
+    except Exception:
+        print("❌ Invalid range. Use start-end where numbers are within the shown list.")
+        sys.exit(1)
 
 selected = all_files[start-1:end]
 selected_paths = [os.path.join(input_dir, s) for s in selected]
@@ -63,13 +99,27 @@ for s in selected:
     print("  ", s)
 
 # final output name
-final_name = input("\nEnter final audiobook name (used as filename and Title metadata): ").strip()
+if args.output:
-if not final_name:
+    final_name = args.output.strip()
-    print("❌ No output name provided.")
+else:
-    sys.exit(1)
+    # derive from first selected file
-final_filename = os.path.join(input_dir, final_name if final_name.lower().endswith(".m4b") else final_name + ".m4b")
+    first_file = os.path.splitext(selected[0])[0]  # filename w/o extension
+    # cut off at " - " if present
+    base_name = first_file.split(" - ")[0].strip()
+    final_name = base_name
 
-# Extract durations and chapter titles; also capture global tags & cover art from first file
+# if not final_name:
+#     print("❌ No output name provided.")
+#     sys.exit(1)
+
+# normalize extension
+if not final_name.lower().endswith(".m4b"):
+    final_name += ".m4b"
+
+final_filename = os.path.join(input_dir, final_name)
+
+
+# Extract durations, chapters, metadata
 chapters = []
 current_start = 0.0
 global_tags = {}
@@ -80,13 +130,11 @@ for idx, p in enumerate(selected_paths):
     meta = ffprobe_json(p)
     dur = float(meta["format"]["duration"])
     tags = meta["format"].get("tags", {}) or {}
-    # prefer 'title' tag as chapter name; fall back to filename
     chapter_title = tags.get("title") or tags.get("©nam") or os.path.splitext(os.path.basename(p))[0]
     chapters.append({"start": current_start, "end": current_start+dur, "title": chapter_title})
     current_start += dur
     if idx == 0:
         global_tags = tags
-        # extract cover art from first file (if exists)
         try:
             run([
                 "ffmpeg", "-hide_banner", "-loglevel", "error",
@@ -97,15 +145,15 @@ for idx, p in enumerate(selected_paths):
         except Exception:
             print("⚠️ No cover art found in first file.")
 
-# Write FFmetadata file (global tags + chapters)
+# Write FFmetadata
 meta_path = "chapters_ffmetadata.txt"
 with open(meta_path, "w", encoding="utf-8") as mf:
     mf.write(";FFMETADATA1\n")
-    # copy global tags except title/name (we'll set our own)
     for k, v in (global_tags or {}).items():
         if k.lower() not in ("title", "name", "©nam"):
             mf.write(f"{k}={v}\n")
-    mf.write(f"title={final_name}\n\n")
+    title_tag = final_name[:-4] if final_name.lower().endswith(".m4b") else final_name #remove .m4b from title
+    mf.write(f"title={title_tag}\n\n")
     for ch in chapters:
         mf.write("[CHAPTER]\n")
         mf.write("TIMEBASE=1/1000\n")
@@ -114,44 +162,40 @@ with open(meta_path, "w", encoding="utf-8") as mf:
         safe_title = str(ch['title']).replace("\n", " ").replace("\r"," ")
         mf.write(f"title={safe_title}\n\n")
 
-# Build concat file list (absolute paths)
+# Build concat list
 file_list = "concat_list.txt"
 with open(file_list, "w", encoding="utf-8") as fl:
     for p in selected_paths:
         fl.write(f"file '{os.path.abspath(p)}'\n")
 
-# Concatenate (audio only, ignore extra cover streams)
+# Concatenate audio only
 merged = "merged.m4b"
 try:
     run([
         "ffmpeg", "-hide_banner", "-loglevel", "error",
         "-f", "concat", "-safe", "0", "-i", file_list,
-        "-map", "0:a",  # only audio
+        "-map", "0:a",
         "-c:a", "copy",
         merged
     ])
 except subprocess.CalledProcessError:
-    print("❌ ffmpeg failed while concatenating. Check ffmpeg installation and file permissions.")
+    print("❌ ffmpeg failed while concatenating.")
     sys.exit(1)
 
-# Mux metadata (chapters + global tags [+ cover art]) into final file
+# Mux metadata + cover
 cmd = [
     "ffmpeg", "-y", "-hide_banner", "-loglevel", "error",
     "-i", merged, "-i", meta_path
 ]
-
 if have_cover:
     cmd += ["-i", cover_temp]
-
 cmd += [
-    "-map", "0",          # audio
+    "-map", "0",
-    "-map_metadata", "1", # metadata
+    "-map_metadata", "1",
     "-c", "copy"
 ]
-
 if have_cover:
     cmd += ["-map", "2", "-disposition:v:0", "attached_pic"]
-
 cmd += [final_filename]
 
 try:
@@ -161,9 +205,8 @@ except subprocess.CalledProcessError:
     sys.exit(1)
 
 print(f"\n✅ Done. Created '{final_filename}' with {len(chapters)} chapters.")
-print("Original files were not modified.")
 
-# --- cleanup temp files ---
+# cleanup temp files
 for f in [merged, meta_path, file_list, cover_temp]:
     if os.path.exists(f):
         try:
@@ -171,9 +214,14 @@ for f in [merged, meta_path, file_list, cover_temp]:
         except Exception as e:
             print(f"⚠️ Failed to delete temp file {f}: {e}")
 
-# --- optional deletion of source files ---
+# delete originals?
-del_prompt = input("\nDo you want to delete the original files that were merged? [y/N]: ").strip().lower()
+# if args.delete:
-if del_prompt == "y":
+#     delete_confirmed = True
+# else:
+#     del_prompt = input("\nDo you want to delete the original files that were merged? [y/N]: ").strip().lower()
+#     delete_confirmed = del_prompt == "y"
+
+if args.delete:
     for f in selected_paths:
         try:
             os.remove(f)
@@ -181,4 +229,4 @@ if del_prompt == "y":
         except Exception as e:
             print(f"⚠️ Could not delete {f}: {e}")
 else:
-    print("Original files kept.")
+    print("Original files kept.")