--
-- ~~~ response tag utils
--

require("src/utils")

-- get tag types
function gettagtypes (response, offset)

    local high = table.extracthex(response, offset, offset + 7)
    local low = table.extracthex(response, offset + 8, offset + 15)

    return {
        high = high,
        low = low
    }

end

-- get tag values
function gettagvalue (response, offset)

    local valuetypes = gettagtypes(response, offset)

    print("T>--------- Tag (High):                                                                     " .. valuetypes.high)
    print("T>--------- Tag (Low):                                                                      " .. valuetypes.low)

    local valuelength = tonumber(table.extracthex(response, offset + 16, offset + 19), 16)
    local valueoffset = offset + 20
    local value = ""

    print("\nT>--------- Length:                                                                         " .. valuelength)
    print("T>--------- Value Offset:                                                                   " .. valueoffset)

    if valuelength > 0 then

        value = table.extracthex(response, valueoffset, valueoffset + valuelength)
        valueoffset = valueoffset + valuelength

        print("\nT>--------- Value (Hex):                                                                    " .. value)
        print("T>--------- Value (Binary):                                                                 " .. string.fromhex(value))

    end

    return {
        value = value,
        endoffset = valueoffset
    }

end

-- return
return {
    types = gettagtypes,
    get = gettagvalue
}