# Copyright (c) 2021 The Regents of the University of California
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from typing import List

from m5.objects import (
    AddrRange,
    Memory_Controller,
    MessageBuffer,
    Port,
    RubyNetwork,
)

from .abstract_node import TriggerMessageBuffer

class MemoryController(Memory_Controller):
    """A controller that connects to memory
    """
    _version = 0

    @classmethod
    def versionCount(cls):
        cls._version += 1  # Use count for this particular type
        return cls._version - 1

    def __init__(
        self,
        network: RubyNetwork,
        ranges: List[AddrRange],
        port: Port
    ):
        super().__init__()

        self.version = self.versionCount()

        self.addr_ranges = ranges
        self.memory_out_port = port
        self.data_channel_size = 32

        self.connectQueues(network)

    def connectQueues(self, network):
        self.triggerQueue = TriggerMessageBuffer()
        self.responseFromMemory = MessageBuffer()
        self.requestToMemory = MessageBuffer(ordered = True)
        self.reqRdy = TriggerMessageBuffer()

        self.reqOut = MessageBuffer()
        self.rspOut = MessageBuffer()
        self.snpOut = MessageBuffer()
        self.datOut = MessageBuffer()
        self.reqIn = MessageBuffer()
        self.rspIn = MessageBuffer()
        self.snpIn = MessageBuffer()
        self.datIn = MessageBuffer()
        self.reqOut.out_port = network.in_port
        self.rspOut.out_port = network.in_port
        self.snpOut.out_port = network.in_port
        self.datOut.out_port = network.in_port
        self.reqIn.in_port = network.out_port
        self.rspIn.in_port = network.out_port
        self.snpIn.in_port = network.out_port
        self.datIn.in_port = network.out_port