# -*- coding: utf-8 -*-
r'''直接把 SITE_CSS 那段字符串抠出来，报出出错位置附近的内容。'''
from __future__ import annotations

import re
import sys
from pathlib import Path

SRC = Path(__file__).resolve().parent.parent / "relay" / "landing.py"
lines = SRC.read_text(encoding="utf-8").splitlines()

# 找 SITE_CSS = """ 到对应的 """
start = None
for i, line in enumerate(lines):
    if line.startswith("SITE_CSS = \"\"\""):
        start = i + 1
        break
if start is None:
    print("  找不到 SITE_CSS")
    sys.exit(1)

# 找结束的 """
end = None
for i in range(start, len(lines)):
    if lines[i].startswith('""" %'):
        end = i
        break
if end is None:
    print("  找不到结束")
    sys.exit(1)

css = "\n".join(lines[start:end])
print("  SITE_CSS 字面量: 第 %d~%d 行，共 %d 字符" % (start + 1, end, len(css)))

# 试格式化
PLACE = {"BG": "#fff", "SURFACE": "#fafafa", "SURFACE2": "#f5f5f5",
         "BORDER": "#eee", "TEXT": "#111", "MUTED": "#666",
         "FAINT": "#999", "ACCENT": "#07e", "ACCENT_DARK": "#06d"}
try:
    css % PLACE
    print("  ✓ 能格式化 —— 那问题在别处")
except ValueError as exc:
    print("  ✗ %s" % exc)
    m = re.search(r"index (\d+)", str(exc))
    if m:
        pos = int(m.group(1))
        lo = max(0, pos - 120)
        seg = css[lo:pos + 40]
        print()
        print("  ════ 出错位置 %d 附近 ════" % pos)
        # 算出这是第几行
        line_no = css[:pos].count("\n") + start + 1
        print("  （大约在第 %d 行）" % line_no)
        print()
        for k, seg_line in enumerate(seg.split("\n")):
            mark = "  <<<<" if k == seg.count("\n") - 1 or (lo + sum(len(x) + 1 for x in seg.split("\n")[:k]) <= pos < lo + sum(len(x) + 1 for x in seg.split("\n")[:k + 1])) else ""
            print("    %s%s" % (seg_line, mark))

# 另外全文列一遍「单 % 后跟非 % 非 ( 的地方」
print()
print("  ════ CSS 里的单 % （排除 %(name)s 和 %% ）════")
found = 0
for i, line in enumerate(css.splitlines(), start + 1):
    tmp = re.sub(r"%\([a-zA-Z_]+\)[sd]", "", line)
    for m in re.finditer(r"%(.)", tmp):
        if m.group(1) != "%":
            print("    第 %d 行: %s" % (i, line.strip()[:100]))
            found += 1
            break
if not found:
    print("    （没找到）")