from __future__ import annotations

import argparse
from typing import Dict

import pwndbg.commands
from pwndbg.color import message

parser = argparse.ArgumentParser(description="Put comments in assembly code.")
parser.add_argument(
    "--addr", metavar="address", default=None, type=str, help="Address to write comments"
)
parser.add_argument("comment", type=str, default=None, help="The text you want to comment")

file_lists: Dict[str, Dict[str, str]] = {}  # This saves all comments.


@pwndbg.commands.ArgparsedCommand(parser)
@pwndbg.commands.OnlyWhenRunning
def comm(addr=None, comment=None) -> None:
    if addr is None:
        addr = hex(pwndbg.aglib.regs.pc)
    try:
        with open(".gdb_comments", "a+") as f:
            target = int(addr, 0)

            if not pwndbg.aglib.memory.peek(target):
                print(message.error("Invalid Address %#x" % target))

            else:
                f.write(f"file:{pwndbg.aglib.proc.exe}=")
                f.write(f"{target:#x}:{comment}\n")
                if pwndbg.aglib.proc.exe not in file_lists:
                    file_lists[pwndbg.aglib.proc.exe] = {}
                file_lists[pwndbg.aglib.proc.exe][hex(target)] = comment
    except Exception:
        print(message.error("Permission denied to create file"))


def init() -> None:
    try:
        with open(".gdb_comments") as f:
            text = f.read()
            text = text.split("\n")
            for i in range(len(text) - 1):
                text1, text2 = text[i].split("=")

                # split Filename, comments
                filename = text1.split(":")[1]
                addr_comm = text2.split(":")

                if filename not in file_lists:
                    file_lists[filename] = {}

                file_lists[filename][addr_comm[0]] = addr_comm[1]

    except Exception:
        pass
