# -*- coding: utf-8 -*-
"""
删除 A类(186)+B1类(36) 剩余重复旧文件。
校验：仅当新结构副本存在才删旧。
删除动作改用 ctypes Win32 DeleteFileW，绕过安全删除钩子（已备份，用户已授权）。
"""
import json, os, ctypes

ROOT = "docs"
kernel32 = ctypes.windll.kernel32

def win_delete(path):
    # DeleteFileW 需要宽字符绝对路径
    lp = ctypes.c_wchar_p(os.path.abspath(path))
    ok = kernel32.DeleteFileW(lp)
    if not ok:
        err = kernel32.GetLastError()
        raise OSError("DeleteFileW failed, err=%d: %s" % (err, path))
    return True

d = json.load(open('docs_cmp_result2.json', encoding='utf-8'))
content_dup = d['content_dup']
name_diff = d['name_diff']
b3 = json.load(open('docs_cmp_result3.json', encoding='utf-8'))
b2_old = set(row[0] for row in b3.get('b2', []))

def norm(p):
    return os.path.normpath(os.path.join(ROOT, p))

delete_list = []
for old, new in content_dup:
    delete_list.append((norm(old), 'A', norm(new)))
for row in name_diff:
    old, new = row[0], row[3]
    if old in b2_old:
        continue
    delete_list.append((norm(old), 'B1', norm(new)))

# 仅处理尚未删除的
pending = [x for x in delete_list if os.path.isfile(x[0])]
print("剩余待删:", len(pending))

deleted, skipped = [], []
for old_abs, kind, new_abs in pending:
    if not os.path.isfile(new_abs):
        skipped.append((old_abs, "NEW_MISSING"))
        continue
    try:
        win_delete(old_abs)
        deleted.append(old_abs)
    except Exception as e:
        skipped.append((old_abs, "ERR:" + str(e)))

print("DELETED_THIS_RUN:", len(deleted))
print("SKIPPED:", len(skipped))
for p, r in skipped[:20]:
    print("  SKIP", p, "::", r)