"""LCM type definitions
This file automatically generated by lcm.
DO NOT MODIFY BY HAND!!!!
"""

from io import BytesIO
import struct
import sys


class MenuEntry(object):
    msg_name = "visualization_msgs.MenuEntry"

    __slots__ = ["id", "parent_id", "title", "command", "command_type"]

    __typenames__ = ["int32_t", "int32_t", "string", "string", "byte"]

    __dimensions__ = [None, None, None, None, None]

    id: "int32_t"
    parent_id: "int32_t"
    title: "string"
    command: "string"
    command_type: "byte"

    FEEDBACK = 0
    ROSRUN = 1
    ROSLAUNCH = 2

    def __init__(self, id=0, parent_id=0, title="", command="", command_type=0):
        # LCM Type: int32_t
        self.id = id
        # LCM Type: int32_t
        self.parent_id = parent_id
        # LCM Type: string
        self.title = title
        # LCM Type: string
        self.command = command
        # LCM Type: byte
        self.command_type = command_type

    def lcm_encode(self):
        buf = BytesIO()
        buf.write(MenuEntry._get_packed_fingerprint())
        self._encode_one(buf)
        return buf.getvalue()

    def _encode_one(self, buf):
        buf.write(struct.pack(">ii", self.id, self.parent_id))
        __title_encoded = self.title.encode("utf-8")
        buf.write(struct.pack(">I", len(__title_encoded) + 1))
        buf.write(__title_encoded)
        buf.write(b"\0")
        __command_encoded = self.command.encode("utf-8")
        buf.write(struct.pack(">I", len(__command_encoded) + 1))
        buf.write(__command_encoded)
        buf.write(b"\0")
        buf.write(struct.pack(">B", self.command_type))

    @classmethod
    def lcm_decode(cls, data: bytes):
        if hasattr(data, "read"):
            buf = data
        else:
            buf = BytesIO(data)
        if buf.read(8) != cls._get_packed_fingerprint():
            raise ValueError("Decode error")
        return cls._decode_one(buf)

    @classmethod
    def _decode_one(cls, buf):
        self = cls()
        self.id, self.parent_id = struct.unpack(">ii", buf.read(8))
        __title_len = struct.unpack(">I", buf.read(4))[0]
        self.title = buf.read(__title_len)[:-1].decode("utf-8", "replace")
        __command_len = struct.unpack(">I", buf.read(4))[0]
        self.command = buf.read(__command_len)[:-1].decode("utf-8", "replace")
        self.command_type = struct.unpack(">B", buf.read(1))[0]
        return self

    @classmethod
    def _get_field_type(cls, field_name):
        """Get the type for a field from annotations."""
        annotation = cls.__annotations__.get(field_name)
        if annotation is None:
            return None
        if isinstance(annotation, str):
            module = sys.modules[cls.__module__]
            if hasattr(module, annotation):
                return getattr(module, annotation)
            return None
        return annotation

    @classmethod
    def _get_hash_recursive(cls, parents):
        if cls in parents:
            return 0
        tmphash = (0x667B2D15EF03E972) & 0xFFFFFFFFFFFFFFFF
        tmphash = (
            ((tmphash << 1) & 0xFFFFFFFFFFFFFFFF) + (tmphash >> 63)
        ) & 0xFFFFFFFFFFFFFFFF
        return tmphash

    _packed_fingerprint = None

    @classmethod
    def _get_packed_fingerprint(cls):
        if cls._packed_fingerprint is None:
            cls._packed_fingerprint = struct.pack(">Q", cls._get_hash_recursive([]))
        return cls._packed_fingerprint

    def get_hash(self):
        """Get the LCM hash of the struct"""
        return struct.unpack(">Q", cls._get_packed_fingerprint())[0]
