import os


class Map:
    def __init__(self, mappath):
        self.mappath = mappath
        self.checksum = None
        self.mapname = "Unknown map"
        self.load_map(mappath)

    def load_map(self, mappath):
        if not os.path.exists("maps/"+mappath):
            raise Exception("Map not found: "+mappath)

        if not mappath.endswith(".gck"):
            raise Exception("Server only supports GCK maps")

        self.mapname = mappath.split(".gck")[0]
        self.checksum = Map.checksum(mappath)

    @staticmethod
    def checksum(mappath):
        # TODO
        if mappath == "Three Way Island - Canyons.gck":
            return b"\x9c\x53\xf4\xdd"
        if mappath == "test1.gck":
            return b"\x9f\xb2\x42\xec"
        if mappath == "test.gck":
            return b"\x48\x52\x33\x23"
        if mappath == "test2.gck":
            return b"\xc7\x5f\x61\x1f"
        if mappath == "test3.gck":
            return b"\x59\xbb\xab\x52"
        if mappath == "Testmap.gck":
            return b"\x74\x07\x98\xaf"
        # \x00\x00\x00\x00: [None]
        # \x00\x00\x00\x01: <custom map>
        # \x9c\x53\xf4\xdd: Three Way Island - Canyons
        # \x1e\xe9\x39\xe1: Still Winter
        # \x9f\xb2\x42\xec: testv1
        # \x48\x52\x33\x23: testv2
        return b"\x00\x00\x00\x00"