local Length
local Width

local Forward = 0
local Right = 0
local Slot_selected = 1

local turn = "left"

local dia = 0
local iron = 0
local copper = 0
local gold = 0
local silver = 0
local coal = 0
local tin = 0
local lapis = 0
local emerald = 0
local ruby = 0
local sapphire = 0
local peridot = 0
local redstone = 0
local exploration = 0

term.write("Insert Length: ")
Length = tonumber(read()) - 1
print(" ")

term.write("Insert Width: ")
Width = tonumber(read())
print(" ")

function dig()
    turtle.digDown() 
    if turtle.forward() == false then
        while turtle.forward() == false do
            turtle.dig()
        end
        Forward = Forward + 1
    else
        Forward = Forward + 1
    end
    check_ore()
    throw_away()
    turtle.digDown()
end
function digBack() 
    turtle.digDown()
    if turtle.forward() == false then
        while turtle.forward() == false do
            turtle.dig()
        end
        Forward = Forward - 1
    else
        Forward = Forward - 1
    end
    check_ore()
    throw_away()
    turtle.digDown()
end

function check_ore()
    if turtle.getItemCount(Slot_selected) > 0 then
        local x, y, z = gps.locate(5)
        x = math.floor(x)
        y = math.floor(y)

        local item_detail = turtle.getItemDetail(Slot_selected)
        if string.find(item_detail.name, "diam") ~= nil then
            dia = dia + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("diamond: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "iron") ~= nil then
            iron = iron + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("iron: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "copper") ~= nil then
            copper = copper + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("copper: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "gold") ~= nil then
            gold = gold + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("gold: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "silver") ~= nil then
            silver = silver + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("silver: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "tin") ~= nil then
            tin = tin + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("tin: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "coal") ~= nil then
            coal = coal + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("coal: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "lapis") ~= nil then
            lapis = lapis + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("lapis: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "emerald") ~= nil then
            emerald = emerald + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("emerald: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "ruby") ~= nil then
            ruby = ruby + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("ruby: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "sapphire") ~= nil then
            sapphire = sapphire + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("sapphire: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "peridot") ~= nil then
            peridot = peridot + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("peridot: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "redstone") ~= nil then
            redstone = redstone + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("redstone: " .. x .. " " .. y)
            h.close()
            
        elseif string.find(item_detail.name, "exploration") ~= nil then
            exploration = exploration + 1
            local h = fs.open("finder/finder_text", "a")
            h.writeLine("exploration: " .. x .. " " .. y)
            h.close()
            
        end
        if turtle.getItemCount(Slot_selected) == 64 then
            Slot_selected = Slot_selected + 1
        end
        
        turtle.select(Slot_selected)
    
    end    
end

function throw_away()
    if Slot_selected == 15 then
        for q=1,15 do 
            turtle.select(q)
            if turtle.getItemCount(q) > 0 then
                local item_detail = turtle.getItemDetail(q)
                if string.find(item_detail.name, "cobblestone") ~= nil then 
                    turtle.drop()
                elseif string.find(item_detail.name, "dirt") ~= nil then 
                    turtle.drop()
                elseif string.find(item_detail.name, "gravel") ~= nil then 
                    turtle.drop()
                end
            end
        end 
    end
end
        
function makeLine()
    if Forward ~= Length then
        repeat
            dig()
        until Forward == Length
    else
        repeat
            digBack()
        until Forward == 0
    end
end


function start()
    local h = fs.open("finder/finder_text", "w")
    h.writeLine(":D hey ")
    h.close()

    if turtle.forward() == false then
        while turtle.forward() == false do
            turtle.dig()
        end
    end

    print("Starting")
    repeat
        makeLine()
        
        Right = Right + 1
        
        if Right ~= Width then
            if turn == "left" then
                turtle.turnRight()
                if turtle.forward() == false then
                    while turtle.forward() == false do
                        turtle.dig()
                    end
                end
                check_ore()
                throw_away()
                turtle.turnRight()
                turn = "right"
            else 
                turtle.turnLeft()
                if turtle.forward() == false then
                    while turtle.forward() == false do
                        turtle.dig()
                    end
                end
                check_ore()
                throw_away()
                turtle.turnLeft()
                turn = "left"
            end
        end
    until Right == Width
    goBack()
end

function goBack()
    print(turn)
    print(Width)
    print(Length)
    local move_1 = 0
    local move_2 = 0
    if turn == "right" then
        turtle.turnRight()
        repeat
            turtle.forward() 
            move_1 = move_1 + 1
        until move_1 == (Width - 1) or turtle.forward() == false
    else
        turtle.turnLeft()
        turtle.turnLeft() 
        repeat
            turtle.forward() 
            move_2 = move_2 + 1
        until move_2 == (Length) or turtle.forward() == false
        turtle.turnRight()
        repeat
            turtle.forward() 
            move_1 = move_1 + 1
        until move_1 == (Width - 1) or turtle.forward() == false
    end
    
    turtle.turnLeft()
    turtle.forward()
    readAll()
end

function printAll()
    if dia ~= 0 then
        print("dia: " .. dia)
    end
    if iron ~= 0 then
        print("iron: " .. iron)
    end
    if copper ~= 0 then
        print("copper: " .. copper)
    end
    if gold ~= 0 then
        print("gold: " .. gold)
    end
    if silver ~= 0 then
        print("silver: " .. silver)
    end
    if coal ~= 0 then
        print("coal: " .. coal)
    end
    if tin ~= 0 then
        print("tin: " .. tin)
    end
    if lapis ~= 0 then
        print("lapis: " .. lapis)
    end
    if emerald ~= 0 then
        print("emerald: " .. emerald)
    end
    if ruby ~= 0 then
        print("ruby: " .. ruby)
    end
    if sapphire ~= 0 then
        print("sapphire: " .. sapphire)
    end
    if peridot ~= 0 then
        print("peridot: " .. peridot)
    end
    if redstone ~= 0 then
        print("redstone: " .. redstone)
    end
    if exploration ~= 0 then
        print("exploration: " .. exploration)
    end
end
function readAll()
    printAll()
    print(" ")
    term.write("Type: 'r' to read, 'd' to delete or 'x' to exit")
    print(" ")
    answer = read()
    if answer == "r" then
        reader_go()
    elseif answer == "d" then
        deleteOrNot()
    elseif answer == "x" then
        print("Bye Bye :)")
    else
        print("No valid input")
        readAll()
    end
end

function reader_go()
    local h = fs.open("finder/finder_text", "r")
    repeat
        local line = h:readLine()
        print(line)
    until not line
    h.close()
    readAll()
end

function deleteOrNot()
    term.write("Delete all? y/n_  ")
    Delete = read()
    if Delete == "y" then
        print("Deleting finder folder and startup file")
        fs.delete("finder")
        if fs.exists("finder") then
            print("finder folder not deleted")
        end
    elseif Delete == "n" then
        readAll()
    else
        print("not a valid input")
        deleteOrNot()
    end
end

start()