# -*- coding: utf-8 -*-
"""
扫描 cfc-frontend，提取所有 request() 调用的 method+path，用于检测
「新增 / 变更需求」——与基线对比即可知道前端新增了哪些接口，从而自动补全用例。

输出（默认 endpoints 模式）：每行 `METHOD /api/path`（排序去重），便于 comm 对比。
  python scan_frontend_endpoints.py --out endpoints.txt
  python scan_frontend_endpoints.py --mode cases --out extra.tsv   # 直接产出冒烟用例 TSV
"""
import os, re, sys, argparse

HERE = os.path.dirname(os.path.abspath(__file__))
FRONTEND = os.path.join(HERE, 'cfc-frontend')

# 两种 request 调用风格：
# 1) request('/api/x', 'POST', data)
# 2) request({ url: BASE_URL + '/api/x', method: 'POST' })
path_re_pos = re.compile(r"request\(\s*['\"](/api/[^'\"]+)['\"]\s*,\s*['\"](GET|POST|PUT|DELETE|PATCH)['\"]", re.I)
path_re_obj = re.compile(r"url\s*:\s*(?:BASE_URL\s*\+\s*)?['\"](/api/[^'\"]+)['\"]")
method_re_obj = re.compile(r"method\s*:\s*['\"](GET|POST|PUT|DELETE|PATCH)['\"]", re.I)

SKIP_DIRS = ('node_modules', 'unpackage', '.git', 'dist', 'assets')


def scan_file(path):
    out = set()
    try:
        with open(path, 'r', encoding='utf-8', errors='ignore') as f:
            text = f.read()
    except Exception:
        return out
    for m in path_re_pos.finditer(text):
        out.add((m.group(2).upper(), m.group(1)))
    for um in path_re_obj.finditer(text):
        p = um.group(1)
        window = text[um.end(): um.end() + 200]
        mm = method_re_obj.search(window)
        method = mm.group(1).upper() if mm else 'POST'
        out.add((method, p))
    return out


def main():
    ap = argparse.ArgumentParser()
    ap.add_argument('--frontend', default=FRONTEND)
    ap.add_argument('--out')
    ap.add_argument('--mode', choices=['endpoints', 'cases'], default='endpoints')
    args = ap.parse_args()

    results = set()
    for root, dirs, files in os.walk(args.frontend):
        dirs[:] = [d for d in dirs if d not in SKIP_DIRS]
        for fn in files:
            if fn.endswith(('.js', '.vue')):
                results |= scan_file(os.path.join(root, fn))

    if args.mode == 'cases':
        # page fn method path auth param —— 自动补全的用例默认匿名、无路径参数
        lines = sorted(f"auto\tauto\t{m}\t{p}\tfalse\tfalse" for m, p in results)
    else:
        lines = sorted(f"{m} {p}" for m, p in results)

    text = "\n".join(lines) + ("\n" if lines else "")
    if args.out:
        with open(args.out, 'w', encoding='utf-8') as f:
            f.write(text)
    else:
        sys.stdout.write(text)


if __name__ == '__main__':
    main()