-- EterniaLogic (DreadEnd - IGN)
-- Draconic Reactor Control Script
-- http://imgur.com/a/BPPKN

-----------
-- The Field input value should be 30% of the power provied
-- Capacitors are used to help guage when the power storage is full
-- The inflow flux gate can also be modem networked together with the computer
--
-----------

-- ReS - Reactor Stabilizer
-- "+" - Cryo-stabilized fluxduct
-- CPU - Computer
-- FxG - Flux Gate
-- ___ - Air
-- CAP - Basic Capacitor (The smaller the total value, the better)

-- ==Level 1==
-- ReS +
-- CPU FxG
-- ___ +

-- ==Level 2==
-- ___ CAP
-- CAP CAP
-- ___ CAP

wantedField=50000000                    -- Force the field value to this approximate value

FluxMODEMVALUE = 0
ValueChange = 10000 -- Change on the Flux Gate over time (Not exact, temperature and saturation divide this)
MinEnergySat = 1000000 -- Minimum energy saturation level
WantedRFt = 1200000
totalFuel = 10368   -- Fully upgraded reactor

CapacitorNum = 5                            -- 5 Capacitors on top of computer
CapacitorVal = 1000000                  -- Power holding capacity of the capacitors


FIRavg = {}     -- last FIR to go     [Flux Input Rate]
FIRLen = 20     -- length of averages
FIRi = 0        -- location to do running average
FIRVal = 200000 -- initial value for FIR
FIRChg = false  -- has an up-down happened?
FIRLow = 0
FIRHigh = 0
FIRLastDelta = 999999

for i=0, FIRLen-1 do
    FIRavg[i] = FIRVal
end

mon = peripheral.find("monitor")
if(mon ~= nil) then
	term.redirect(mon)
end
-----------
function init()
    inflowFluxGate = peripheral.find("flux_gate")
    if inflowFluxGate ~= nil then
        inflowFluxGate.open(1)
		print("|# Input fluxgate:      "..inflowFluxGate.callRemote("flux_gate_"..FluxMODEMVALUE,"getSignalLowFlow"))
    end



    maxFieldCharge = totalFuel * 96.45061728395062 * 100
    maxEnergySaturation = (totalFuel * 96.45061728395062 * 1000)

    -- Capacitor on top
    CapacitorMax = CapacitorVal*CapacitorNum    -- Power holding capacity of the capacitors



    capacitor_1 = peripheral.wrap("top")
    tbl = peripheral.call("back","getReactorInfo")
    FluxGateStatus = peripheral.call("right", "getSignalLowFlow")

    for k, v in pairs (tbl) do
        --print(k,v)
        if k == "temperature" then -- Weise bestimmte programmrelevante Parameter einzelnen Variablen zu
            temperatur = v
        end
        if k == "energySaturation" then
            energysat = v
        end
        if k == "fieldStrength" then
            feldst = v
        end
        if k == "generationRate" then
            RFpt = v
        end
        if k == "fuelConversion" then
            RestKraftstoff = v
        end
        if k == "fuelConversionRate" then
            Kraftstoffverbrauch = v
        end
    end
    energieladung = energysat * 0.0000001
    fieldstr = feldst * 0.000001
    kRFpt = RFpt / 1000
    fuel = RestKraftstoff / 10368
    FuelConv = fuel * 100
    --------------------------------------------------
    print("|# Reactor temperature: "..math.ceil(temperatur))
    print("|# Energy saturation %: "..math.ceil(energieladung))
    print("|# Field strength %:    "..math.ceil(fieldstr))
    print("|# Refuel level %:      "..math.ceil(FuelConv))
    --print("|# ConvesionRate:     "..math.ceil(Kraftstoffverbrauch))
    print("|# Energyproduction:    "..math.ceil(kRFpt).." kRF/t")
    -------------------------------------------------
end

function doFIRavg()
    local val=0
    for i=0, FIRLen-1 do
        val = val+FIRavg[i]
    end
    return val/FIRLen
end

function calcFieldDrain()
        if FIRi >= FIRLen then
            FIRi = 0
        else
            FIRi = FIRi+1
        end

        FIRavg[FIRi]=feldst
        local avg = doFIRavg()
        --print(avg.." "..wantedField)
        local difference = math.abs(avg-wantedField)

        --local valuedelta = math.pow(avg-wantedField, 2)/(300*avg)

        local height = 40000

        local Offset = 78540000
        local valuedelta = math.sin((avg-(wantedField+Offset))/(50000000))*height+height
        if(valuedelta < 0) then
            valuedelta = 1
            --print("Neg at: "..avg)
        end

        --print("TTT: "..valuedelta)


        if (avg > wantedField) then
            if FIRVal-valuedelta < 10000 then
                FIRVal = 10000
            else
                FIRVal = FIRVal-valuedelta
            end
            if(FIRChg) then
                FIRChg = false
                FIRHigh = FIRVal

                -- Predict middle
                --FIRVal = (FIRHigh+FIRLow)/2
            end
        else
            if (avg < wantedField) then
                if FIRVal+valuedelta > (900000-valuedelta) then
                    FIRVal = 900000
                else
                    FIRVal = FIRVal+valuedelta
                end
            end
            if(not FIRChg) then
                FIRChg = true
                FIRLow = FIRVal

                -- Predict middle
                --FIRVal = (FIRHigh+FIRLow)/2
            end

        end

        --print("Low: "..FIRLow)
        --print("High: "..FIRHigh)
        --print("Delta: "..math.abs(FIRHigh-FIRLow))

        fluxval = FIRVal
        print("|#== FluxInputRate:     "..math.floor(fluxval).." kRF/t")
end


-- Set the shield input level
function setLowLevel()
    if inflowFluxGate ~= nil then
        calcFieldDrain()
        inflowFluxGate.callRemote("flux_gate_"..FluxMODEMVALUE,"setSignalLowFlow",fluxval)
    end
end


function setLevel(level)
    print("|#== FluxGate set to:   "..math.ceil(FluxGateStatus).." kRF/t")
    peripheral.call("right", "setSignalLowFlow", FluxGateStatus)

end


function limitLevel(FluxStatus)
    -- Set the maximum value
    if FluxGateStatus >= (WantedRFt*0.9-FluxGateStatus*0.3) then
        FluxGateStatus = (WantedRFt*0.9-FluxGateStatus*0.3)
    end
end


-- Start the reactor
function startReactor()
    peripheral.call("back", "chargeReactor")
        print("|#==        Reactor charge !!        ==#|")
    if feldst >= 50000000 then
        peripheral.call("back", "activateReactor")
            print("|#==        Reactor activate !       ==#|")
    end
end


function testFieldStrength()
    if feldst <= 15000000 then
        peripheral.call("back", "stopReactor")
        print("|#==     Reactor Emergency stop !    ==#|")
        print("|#==     Field strength too low !     ==#|")
    else
        if feldst >= 20000000 then
            peripheral.call("back", "activateReactor")
            --print("|#==         Reactor active !        ==#|")
        end
    end
end


function calcNewValueChange()
    local chg = ValueChange
    local saturationchg = (energieladung/100)-0.3
    local reactorTempx = 1-((temperatur-3000)/10000+0.2) -- reactor temperature accounting for +3000 heat

    print("|# Temperature Factor:  "..reactorTempx)
    print("|# Saturation Factor:   "..saturationchg)
    chg = chg*math.min(saturationchg,reactorTempx) -- Account for saturation and Temperature

    return chg
end


function testCapacitor()
    -- Slow down the reactor to 1/8 of the requested power level
    -- This is so that a slow-start is not required for later use
    if capacitor_1 ~= nil then
        local energyStored = capacitor_1.getEnergyStored()
        if energyStored >= CapacitorMax then
            FluxGateStatus = WantedRFt/8
            setLevel(FluxGateStatus)
        end
    end
end


-- Run this program!
function doRun()
    if temperatur > 7777 then -- Temperatur check wenn mehr als 7777 Grad
        FluxGateStatus = 200000
    end


    -- Set the energy level to be produced
    if energysat > MinEnergySat then
        limitLevel(FluxGateStatus)
        FluxGateStatus = RFpt + calcNewValueChange() -- anpassen der Flux-Gate_Variablen an den neuen Wert
        setLevel(FluxGateStatus)
    end




    -- Energy Saturation settings
    --if energysat < MinEnergySat then
    --  if FluxGateStatus <= 10000 then -- Minimalwert abregelung auf 0
    --      FluxGateStatus = 10000
    --  end
    --  FluxGateStatus = FluxGateStatus - ValueChange -- anpassen der Flux-Gate_Variablen an den neuen Wert
    --  setLevel(FluxGateStatus)
    --end



    -- Stop the reactor when 90% of the fuel is gone
    if FuelConv >= 90 then
        peripheral.call("back", "stopReactor")

        print("|#==      Reactor refuel stop !      ==#|")
        print("|#============#| S D R C |#============#|")
        sleep(300)
    end

    if temperatur <= 2000 then -- Starttest zum aufladen des Reaktors
        startReactor()
    else
        testFieldStrength()
    end

    setLowLevel(level)
    testCapacitor()
end

while true do
    term.clear()
    term.setCursorPos(1,1)
    init()
    doRun()
    sleep(0.06)
end