--::     LOCAL SENSOR     ::--

os.loadAPI("config")
os.loadAPI("update")


local rSides = config.rSides
--todo move these to config
local RADIUS = 5

local OFFSET = {
  X = 0,
  Y = 2,
  Z = 0
}

function wait_for_auth_response()
    while true do
        local e,s,m,d = os.pullEvent("rednet_message")
        if s == authID then
            return m
        end
    end
end


function println(text)
    print(text)
    term.setBackgroundColor(colors.lightBlue)
    term.setTextColor(colors.blue)
    x,y = term.getCursorPos()
    term.setCursorPos(1,1)
    term.write(config.self..'        LOCAL DOOR CONTROLLER               ')
    term.setBackgroundColor(colors.black)
    term.setTextColor(colors.white)
    term.setCursorPos(x,y)
end

function distance(pos)
    local xd = pos.X - OFFSET.X
    local yd = pos.Y - OFFSET.Y
    local zd = pos.Z - OFFSET.Z
    return math.sqrt(xd*xd + yd*yd + zd*zd)
end

function auth_check(user)
    local tMsg = {door = config.self, user=user}
    local msg = textutils.serialize(tMsg)
    rednet.send(authID, msg,'system')
    return wait_for_auth_response()
end

-- OPEN / CLOSE FUNCTIONS --

function open()
    print('open')
    for k,side in pairs(rSides) do
        rs.setOutput(side,false)
    end
end

function close2()
    print('close')
    for k,side in pairs(rSides) do
        rs.setOutput(side,true)
    end
end


----------




--MODEM INIT
for _,side in pairs(rs.getSides()) do
    if peripheral.getType(side) == "modem" then
        rednet.open(side)
    end
end
if not rednet.isOpen() then
    print('! Network error')
    error()
end
update.update(config.update_file, config.update_name)
-- SENSOR INIT
os.loadAPI("ocs/apis/sensor")
s = sensor.wrap("top")

-- INIT
rednet.host('control',config.self)
authID = rednet.lookup('system','database')
for k,side in pairs(rSides) do
    rs.setOutput(side,config.default)
end
term.clear()
println()

while true do
    for name,b_det in pairs(s.getTargets()) do
        print('found'..name)
        if b_det.IsPlayer then
            print('they are player')
            local det = s.getTargetDetails(name)
            print('got deets')
            if det~=nil and distance(det.Position) < RADIUS and det.IsSneaking and auth_check(name)  then
                open()
                sleep(2)
                close2()
            end
        end
        sleep(0.2)
    end
    sleep(0.2)
end