"""Portable entity/relation normalization used by both knowledge products."""

from __future__ import annotations

import re
import unicodedata


def normalize_name(value: str) -> str:
    text = unicodedata.normalize("NFKC", value or "").strip().casefold()
    text = text.strip("`'\"“”‘’《》〈〉[](){}")
    text = re.sub(r"\s+", " ", text)
    return text


def normalize_predicate(value: str) -> str:
    normalized = normalize_name(value).replace(" ", "_")
    aliases = {
        "依赖": "depends_on",
        "需要": "depends_on",
        "requires": "depends_on",
        "调用": "uses",
        "使用": "uses",
        "uses": "uses",
        "生成": "produces",
        "输出": "produces",
        "读取": "consumes",
        "输入": "consumes",
        "引用": "references",
    }
    return aliases.get(normalized, normalized or "related_to")