from typing import BinaryIO

LOGO = '0x24ffae51699aa2213d84820a84e409ad11248b98c0817f21a352be199309ce2010464a4af82731ec58c7e83382e3cebf85f4df94ce4b09c194568ac01372a7fc9f844d73a3ca9a615897a327fc039876231dc7610304ae56bf38840040a70efdff52fe036f9530f197fbc08560d68025a963be03014e38e2f9a234ffbb3e0344780090cb88113a9465c07c6387f03cafd625e48b380aac7221d4f807'


def gba_get_info(opt: str, inf: BinaryIO):
    match opt.lower():
        case 'nintendologo':
            inf.seek(0x004)
            if LOGO == hex(int.from_bytes(inf.read(156))):
                return 'OK'
            else:
                return 'NOK'
        case 'title':
            inf.seek(0x0A0)
            return inf.read(12).decode()
        case 'gamecode':
            inf.seek(0x0AC)
            return _gamecode_lookup(inf.read(4).decode())
        case 'makercode':
            inf.seek(0x0B0)
            return _maker_lookup(inf.read(2).decode())
        case 'softwareversion':
            inf.seek(0x0BC)
            return str(int.from_bytes(inf.read(1)))
        case 'complement':
            return complement_check(inf)
        case _:
            return 'Unknown'


def _gamecode_lookup(code: str) -> str:
    gamecode = []

    match code[:1]:
        case 'A':
            gamecode.append('Normal game (2001-2003)')
        case 'B':
            gamecode.append('Normal game (2003+)')
        case 'C':
            gamecode.append('Normal game (not yet used)')
        case 'F':
            gamecode.append('Famicom/NES')
        case 'K':
            gamecode.append('Acceleration sensor')
        case 'P':
            gamecode.append('For e-Reader (dot-code scanner)')
        case 'R':
            gamecode.append('Rumble and Z-axis gyro sensor')
        case 'U':
            gamecode.append('RTC and solar sensor')
        case 'V':
            gamecode.append('Rumble motor')
        case '_':
            gamecode.append('Unknown')

    match code[3:]:
        case 'D':
            gamecode.append('German')
        case 'E':
            gamecode.append('USA/English')
        case 'F':
            gamecode.append('French')
        case 'I':
            gamecode.append('Italian')
        case 'J':
            gamecode.append('Japanese')
        case 'P':
            gamecode.append('Europe/elsewhere')
        case 'S':
            gamecode.append('Spanish')
        case '_':
            gamecode.append('Unknown')

    return '{} ({})'.format(code, f'Type: {gamecode[0]} | Language: {gamecode[1]})')


def _maker_lookup(code: str) -> str:
    match code:
        case '01':
            return 'Nintendo ({})'.format(code)
        case 'A4':
            return 'Konami ({})'.format(code)
        case _:
            return 'Unknown ({})'.format(code)


def complement_check(data: BinaryIO) -> str:
    data.seek(0x000)
    data = data.read()

    if len(data) >= 189:
        checksum = 0
        for b in data[0x0A0:0x0BC]:
            checksum = (checksum - b) & 0xFF

        return '{} ({}/{})'.format((checksum - 0x19) & 0xFF == int.from_bytes(data[0x0BD:0x0BE]),
                                   (checksum - 0x19) & 0xFF, int.from_bytes(data[0x0BD:0x0BE]))
    else:
        return 'False (Invalid data length)'