# -*- coding: utf-8 -*-
"""商品详情双跑对比：PHP 线上响应 vs Java 本地响应，递归逐字段 diff"""
import json
import sys
from _root import ROOT

GOLDEN = str(ROOT / "golden/store_goods_detail.json")


def load_java(path):
    with open(path, encoding="utf-8") as f:
        return json.load(f)


def diff(a, b, path="", out=None):
    if out is None:
        out = []
    if type(a) != type(b):
        # int/bool 等类型差异单独标注
        out.append(f"{path}: 类型不同 PHP={type(a).__name__}({a!r}) JAVA={type(b).__name__}({b!r})")
        return out
    if isinstance(a, dict):
        for k in sorted(set(a) | set(b)):
            if k not in a:
                out.append(f"{path}.{k}: Java 多出 {b[k]!r}"[:200])
            elif k not in b:
                out.append(f"{path}.{k}: Java 缺失（PHP={str(a[k])[:80]!r}）")
            else:
                diff(a[k], b[k], f"{path}.{k}", out)
    elif isinstance(a, list):
        if len(a) != len(b):
            out.append(f"{path}: 数组长度 PHP={len(a)} JAVA={len(b)}")
        for i in range(min(len(a), len(b))):
            diff(a[i], b[i], f"{path}[{i}]", out)
    else:
        if a != b:
            out.append(f"{path}: PHP={a!r} JAVA={b!r}")
    return out


if __name__ == "__main__":
    php = json.load(open(GOLDEN, encoding="utf-8"))
    java = load_java(sys.argv[1])
    diffs = diff(php, java, "$")
    print(f"差异条数: {len(diffs)}")
    for d in diffs[:40]:
        print(" -", d)