#!/usr/bin/python3
import sys
import re
import typing as T
from dataclasses import dataclass
from pathlib import Path


DOCS_DIR = Path(__file__).parent
PROGRESS_TXT_FILE = DOCS_DIR / "progress.txt"


@dataclass
class IdaFunction:
    name: str
    offset: int


def collect_ida_functions() -> T.Iterable[IdaFunction]:
    for line in sys.stdin:
        line = line.strip()
        if not line.startswith("#") and line:
            name, _section, offset_str, *_unused = re.split(r"\s+", line)
            yield IdaFunction(name=name, offset=int(offset_str, 16))


def update_function_names(ida_functions: T.Iterable[IdaFunction]) -> int:
    ida_func_map = {func.offset: func for func in ida_functions}
    updated = 0
    lines = []
    for line in PROGRESS_TXT_FILE.open("r", encoding="utf-8"):
        line = line.strip()
        if not line.startswith("#") and line:
            name, offset_str, size_str, flags = re.split(r"\s+", line)
            offset = int(offset_str, 16)
            size = int(size_str, 16)
            ida_func = ida_func_map.get(offset)
            if ida_func and ida_func.name!= name:
                name = ida_func.name
                line = re.sub(r"^\w+\s+", "%-31s " % name, line)
                updated += 1
        lines.append(line)
    new_text = "\n".join(lines) + "\n"
    if new_text != PROGRESS_TXT_FILE.read_text():
        PROGRESS_TXT_FILE.write_text(new_text)
    return updated


def main() -> None:
    ida_functions = list(collect_ida_functions())
    updated = update_function_names(ida_functions)
    print(updated, 'names updated')


if __name__ == "__main__":
    main()