local os = require("os")
local robot = require("robot")
local sides = require("sides")
local component = require("component")
local geolyzer = component.geolyzer
local computer = require("computer")

local FLOOR_COUNT = 2
local FLOOR_HEIGHT = 3
local FLOOR_WIDTH = 7
local FLOOR_DEPTH = 15
local FLOOR_ENTRY = 2


function checkBeginningPos()
    --sprawdzanie lampy redstonowej
    local lamp = geloyzer.analyze(sides.bottom).name
    if lamp~="minecraft:lit_redstone_lamp"
    and lamp~="minecraft:redstone_lamp" then
        return false, "nie ma lampy kontrolnej pod robotem"
    end

    --sprawdzanie piecyka
    for i=1,4 do
        local smelter = geolyzer.analyze(sides.front).properties
        if smelter.recipe == "smelting" then break end
        if i==4 then return false, "nie ma stacji przepalającej" end
        robot.turnLeft()
    end

    --sprawdzanie chargera
    local charger = geolyzer.analyze(sides.left).name
    if charger.name ~= "opencomputers:charger" then
        return false, "nie ma chargera"
    end

    return true
end


function checkControlLamp()
    local lamp = geloyzer.analyze(sides.bottom).name
    return lamp=="minecraft:lit_redstone_lamp"
end


function moveMultiple(side, number)
    for i=1,number do
        component.robot.move(side)
    end
end


function doFloor()
    moveMultiple(sides.back, FLOOR_ENTRY-1)
    for r=1,FLOOR_DEPTH do
        robot.back()
        if r%2==0 then robot.turnRight() else robot.turnLeft() end
        for c=1,FLOOR_WIDTH do
            checkZiemniok()
            robot.forward()
        end
        checkZiemniok()
        if r%2==0 then robot.turnLeft() else robot.turnRight() end
    end
    if FLOOR_DEPTH%2==1 then
        robot.turnLeft()
        moveMultiple(sides.forward,FLOOR_WIDTH-1)
        robot.turnRight()
    end
    moveMultiple(sides.forward,FLOOR_DEPTH+FLOOR_ENTRY-1)
end


function checkZiemniok()
    local ziemniok = geolyzer.analyze(sides.bottom)
    if ziemniok.name == "minecraft:air" then
        robot.placeDown()
    elseif ziemniok.name == "minecraft:potatoes" then
        if ziemniok.properties.age==7 then
            robot.swingDown()
            robot.placeDown()
        end
    end
end


function depositZiemnioki()
    for i=16,1 do
        robot.select(i)
        robot.drop()
    end
end


function waitForRecharge()
    while computer.energy()/computer.maxEnergy()<0.99 do
        os.sleep(0.25)
    end
end




local goodStart, err = checkBeginningPos()

if not goodStart then print("Nieprawidłowa strefa startu: "..err)
else
    while checkControlLamp() do
        for f=1,FLOOR_COUNT do
            if f>1 then moveMultiple(sides.up, FLOOR_HEIGHT) end
            doFloor()
            print("Ukończono piętro "..f)
        end
        moveMultiple(sides.down, FLOOR_HEIGHT * (FLOOR_COUNT-1))
        print("Wypierdalanie ziemnioków...")
        depositZiemnioki()
        print("Czekanie na naładowanie baterii")
        waitForRecharge()
    end
    print("Działanie zakończone przez użytkownika.")
end