#!/usr/bin/env python3
import os
import re
from collections import defaultdict
from pathlib import Path
import argparse

# ---- args ----
parser = argparse.ArgumentParser()
parser.add_argument("-v", "--vault", default=".", help="Path to Obsidian vault")
parser.add_argument("-d", "--dict", default="Dictionary", help="Name of the dictionary directory")
args = parser.parse_args()

# ---- config ----
VAULT_DIR = Path(args.vault)
DICT_DIR = VAULT_DIR / args.dict
WORD_REGEX = re.compile(r"\b[a-zA-Z]{3,}\b")

# ---- prep ----
DICT_DIR.mkdir(exist_ok=True)
lemma_map = defaultdict(lambda: {"forms": set(), "files": set()})

# ---- stopwords ----
STOPWORDS = {
    os.path.basename(os.getcwd()), "author", "jpeg", "jpg", "post", "like", "likes", "repost",
    "avatar", "bsky", "media", "thumbnail", "thumnail", "http", "https", "com", "followers",
    "following", "unknown", "date", "social", "replier", "replie", "for", "you", "from",
    "to", "script", "grep", "localhost", "sudo", "not"
}

# ---- scan vault ----
for md_file in VAULT_DIR.rglob("*.md"):
    if DICT_DIR.name in md_file.parts:
        continue
    text = md_file.read_text(encoding="utf-8", errors="ignore").lower()
    words = WORD_REGEX.findall(text)
    for word in words:
        if word in STOPWORDS:
            continue
        lemma_map[word]["forms"].add(word)
        lemma_map[word]["files"].add(md_file)

print(f"Found {len(lemma_map)} lemmas.")

# ---- write dictionary ----
for lemma, data in lemma_map.items():
    if len(data["files"]) < 2:
        continue
    file_path = DICT_DIR / f"{lemma}.md"
    with open(file_path, "w", encoding="utf-8") as f:
        f.write(f"# {lemma}\n\n---\n")
        f.write(f"lemma: {lemma}\n")
        f.write(f"forms: [{', '.join(sorted(data['forms']))}]\n---\n\n")
        f.write("## Forms\n")
        for form in sorted(data["forms"]):
            f.write(f"- {form}\n")
        f.write("\n## Found in\n")
        for md in sorted(data["files"]):
            rel_path = md.relative_to(VAULT_DIR)
            f.write(f"- [[{rel_path}]]\n")

print(f"Dictionary generated in {DICT_DIR}")