import hashlib
import json
from pathlib import Path
from typing import Any


def content_hash(text: str) -> str:
    return hashlib.sha256(text.encode("utf-8")).hexdigest()


def url_hash(url: str) -> str:
    return hashlib.md5(url.encode("utf-8")).hexdigest()


def normalize_url(url: str) -> str:
    url = url.strip().rstrip("/")
    if url.startswith("http://"):
        url = url.replace("http://", "https://", 1)
    return url


def save_json(data: Any, path: Path) -> None:
    path.parent.mkdir(parents=True, exist_ok=True)
    with open(path, "w", encoding="utf-8") as f:
        json.dump(data, f, indent=2, ensure_ascii=False)


def load_json(path: Path) -> Any:
    with open(path, "r", encoding="utf-8") as f:
        return json.load(f)


def truncate_text(text: str, max_chars: int = 200) -> str:
    if len(text) <= max_chars:
        return text
    return text[: max_chars - 3] + "..."