#!/usr/bin/env python3
"""Leaks ledger — record every leaked file and key the hunters found.

Scans all results/<hunt>/ dirs for:
  - extracted_keys.txt / bucket .txt files  (provider|key|url|detail)
  - candidates.json                         (github_search.py output)
and maintains results/leaks_ledger.json:

  files: {html_url: {repo, path, sha, first_seen, last_seen, keys, providers}}
  keys:  {key: {providers, sources[], first_seen, last_seen}}

"Changed" detection: a file's git blob SHA is immutable, so the same URL
with the same SHA means nothing changed. New SHAs/URLs count as new leaks.

Usage:
    python3 leaks_ledger.py            # scan + update + print stats
    python3 leaks_ledger.py --stats    # just print stats
"""

import argparse
import json
import re
import sys
from datetime import datetime, timezone
from pathlib import Path

HERE = Path(__file__).resolve().parent
RESULTS = HERE / "results"
LEDGER = RESULTS / "leaks_ledger.json"

URL_RE = re.compile(r"https?://[^\s\"'<>|]+")


def load_ledger():
    if LEDGER.exists():
        try:
            return json.loads(LEDGER.read_text())
        except Exception:
            pass
    return {"updated": None, "files": {}, "keys": {}}


def parse_url_sha(url):
    """Extract (repo, path, sha) from a github blob/raw URL, else (None,...)."""
    u = url.split("|")[0].strip().rstrip("),;")
    if "/blob/" in u and "github.com/" in u:
        seg = u.split("github.com/", 1)[1].split("/", 4)
        if len(seg) >= 5 and seg[2] == "blob":
            return f"{seg[0]}/{seg[1]}", seg[4], seg[3]
    return None, None, None


def scan_files():
    """Yield (url, key) pairs from every hunt output file."""
    seen_urls = set()
    # extracted_keys.txt style: provider|key|url|...  or key|url|detail
    for txt in RESULTS.glob("*/extracted_keys.txt"):
        for ln in txt.read_text(errors="replace").splitlines():
            parts = ln.split("|")
            if len(parts) >= 3:
                url = parts[2].strip()
                if url.startswith("http"):
                    seen_urls.add((url, parts[1].strip()))
            elif len(parts) == 2:
                seen_urls.add((parts[1].strip(), parts[0].strip()))
    # bucket files: key|url|detail (usable/no_balance/...)
    for txt in RESULTS.glob("*/usable.txt"):
        for ln in txt.read_text(errors="replace").splitlines():
            parts = ln.split("|")
            if len(parts) >= 2 and parts[1].strip().startswith("http"):
                seen_urls.add((parts[1].strip(), parts[0].strip()))
    # candidates.json
    for cj in RESULTS.glob("*/candidates.json"):
        try:
            data = json.loads(cj.read_text())
        except Exception:
            continue
        for it in data:
            u = it.get("url", "")
            if u.startswith("http"):
                seen_urls.add((u, ""))
    return seen_urls


def main():
    ap = argparse.ArgumentParser()
    ap.add_argument("--stats", action="store_true")
    args = ap.parse_args()

    ledger = load_ledger()
    files, keys = ledger["files"], ledger["keys"]
    now = datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%MZ")

    pairs = scan_files()
    new_files = new_keys = 0

    for url, key in pairs:
        repo, path, sha = parse_url_sha(url)
        ent = files.get(url)
        if ent is None:
            files[url] = {
                "repo": repo or "", "path": path or "", "sha": sha or "",
                "first_seen": now, "last_seen": now, "keys": 0, "providers": []}
            new_files += 1
        else:
            ent["last_seen"] = now
            if sha and sha != ent.get("sha"):
                ent["sha"] = sha  # file changed (new version)
        if key:
            files[url]["keys"] += 1
            ke = keys.get(key)
            if ke is None:
                keys[key] = {"providers": [], "sources": [url],
                             "first_seen": now, "last_seen": now}
                new_keys += 1
            else:
                if url not in ke["sources"]:
                    ke["sources"].append(url)
                ke["last_seen"] = now

    ledger["updated"] = now
    LEDGER.write_text(json.dumps(ledger, indent=1, ensure_ascii=False) + "\n")

    print(f"leaks ledger: {len(files)} files ({new_files} new), "
          f"{len(keys)} keys ({new_keys} new)")
    print(f"updated: {now}")

    if args.stats:
        return

    # today's new files (for the daily report)
    today = now[:10]
    fresh = [u for u, e in files.items() if e["first_seen"].startswith(today)]
    if fresh:
        print(f"\ntoday's new leaked files ({len(fresh)}):")
        for u in sorted(fresh)[:20]:
            print(f"  {u}")


if __name__ == "__main__":
    main()