# -*- coding: utf-8 -*-
"""前端驼峰迁移：src 下 .vue/.js 的全小写 snake_case 标识符 -> 驼峰。
.vue 只处理 <template> 与 <script>，跳过 <style>。
排除清单：证书文件名、路由枚举值、CSS 类名、import 路径、第三方 SDK 字段、
前端框架自身配置 key、localStorage key、短信场景枚举值 —— 这些不是接口字段。
"""
import re
from pathlib import Path

ROOT = Path(r"F:\shop\yoshop2.0-store")
SRC = ROOT / "src"

EXCLUDE = {
    # 微信支付证书文件名（文案）
    "apiclient_cert", "apiclient_key",
    # 商品列表 listType 枚举值（路由 query，前后端约定值）
    "on_sale", "off_sale", "sold_out",
    # CSS 类名片段
    "text_right",
    # import 路径（文件名）
    "lazy_use",
    # 第三方（云存储/短信/支付）固定字段
    "access_key", "access_key_id", "access_key_secret",
    "secret_id", "secret_key", "pub_key",
    # 前端框架自身配置 / localStorage key（与后端接口无关）
    "multi_tab", "fixed_header", "fixed_sidebar", "sidebar_type",
    "nav_theme", "content_width", "auto_hide_header",
    "app_language", "app_theme", "is_mobile",
    "region_tree", "order_export_form",
    # 短信场景枚举值
    "order_pay",
}

SNAKE = re.compile(r'\b([a-z]+(_[a-z0-9]+)+)\b')


def to_camel(s):
    return re.sub(r'_([a-z0-9])', lambda m: m.group(1).upper(), s)


def convert_vue(text):
    """按 <template>/<script>/<style> 分段，只处理前两者。"""
    parts = re.split(r'(<style[^>]*>[\s\S]*?</style>)', text)
    out = []
    for p in parts:
        if p.startswith("<style"):
            out.append(p)
        else:
            out.append(SNAKE.sub(snake_repl, p))
    return "".join(out)


def snake_repl(m):
    t = m.group(1)
    if t in EXCLUDE:
        return t
    return to_camel(t)


changed = []
total = 0
for f in sorted(list(SRC.rglob("*.vue")) + list(SRC.rglob("*.js"))):
    text = f.read_text(encoding="utf-8", errors="replace")
    new = convert_vue(text) if f.suffix == ".vue" else SNAKE.sub(snake_repl, text)
    if new != text:
        n = sum(1 for a, b in zip(text.split("\n"), new.split("\n")) if a != b)
        total += len(SNAKE.findall(re.sub(r'|'.join(map(lambda e: re.escape(e), EXCLUDE)), '', new)))
        f.write_text(new, encoding="utf-8", newline="")
        changed.append((str(f.relative_to(ROOT)), n))

print("改动 %d 个文件" % len(changed))
for name, n in sorted(changed, key=lambda x: -x[1])[:20]:
    print("  %-64s ~%d 行" % (name, n))