MCNet devices/server

--[[

    Minecraft Intranet
    Server device

--]]

mcnet = mcnet or {}
local device = mcnet.device or {}
mcnet.device = device

local Server = common.newClass(device.Device, {
    registerServantMessage = nil,
    registeredServantMessage = nil,
    servants = nil
})
device.Server = Server

-- Constructor
function Server:init()
    device.Device.init(self)

    self.servants = mcnet.names.new()

    self:addMessageHandler{
        [self.registerServantMessage] = self.handleRegisterServant,
        deviceOff = self.handleUnregisterServant
    }
end

-- Check if the given device is a servant
function Server:checkServant(deviceType, deviceAddress)
    return true
end

-- Get the name of the given servant
function Server:getServantName(servantAddress)
    return ""
end

function Server:handleRegisterServant(senderId, msg)
    -- Register servant
    local servantName = self:getServantName(msg.from)
    self.servants:register(servantName, senderId)
    self:trigger("registeredServant", senderId, servantName)
    -- Reply
    self:send(senderId, mcnet.message.new{
        to = msg.from,
        type = self.registeredServantMessage
    })
    return true
end

function Server:handleUnregisterServant(senderId, msg)
    if (self:checkServant(msg.device, msg.from)) then
        -- Unregister servant
        local servantName = self.servants:getName(senderId)
        if (servantName ~= nil) then
            self.servants:unregister(servantName)
            self:trigger("unregisteredServant", senderId, servantName)
        end
        return true
    end

    return false
end