blib

blib = {}
blib.coords = {x = 1, y = 0, z = 1, xf = 0, yf = 1}
------------------------------------------------------------------------------------------------------------------------

function blib.MapTurnRight()
    if(turtle.turnRight()) then
        if blib.coords.xf == 1 then
            blib.coords.xf = 0
            blib.coords.yf = -1
        elseif blib.coords.xf == -1 then
            blib.coords.xf = 0
            blib.coords.yf = 1
        elseif blib.coords.yf == 1 then
            blib.coords.yf = 0
            blib.coords.xf = 1
        elseif blib.coords.yf == -1 then
            blib.coords.yf = 0
            blib.coords.xf = -1
        end
        return true
    end
    return false
end

function blib.MapTurnLeft()
    if(turtle.turnLeft()) then
        if blib.coords.xf == 1 then
            blib.coords.xf = 0
            blib.coords.yf = 1
        elseif blib.coords.xf == -1 then
            blib.coords.xf = 0
            blib.coords.yf = -1
        elseif blib.coords.yf == 1 then
            blib.coords.yf = 0
            blib.coords.xf = -1
        elseif blib.coords.yf == -1 then
            blib.coords.yf = 0
            blib.coords.xf = 1
        end
        return true
    end
    return false
end

function blib.MapForward()
    if(turtle.forward()) then
        if blib.coords.xf == 1 then
            blib.coords.x = blib.coords.x + 1
        elseif blib.coords.xf == -1 then
            blib.coords.x = blib.coords.x - 1
        elseif blib.coords.yf == 1 then
            blib.coords.y = blib.coords.y + 1
        elseif blib.coords.yf == -1 then
            blib.coords.y = blib.coords.y - 1
        end
        return true
    end
    return false
end

function blib.MapBackward()
    if(turtle.back()) then
        if blib.coords.xf == 1 then
            blib.coords.x = blib.coords.x - 1
        elseif blib.coords.xf == -1 then
            blib.coords.x = blib.coords.x + 1
        elseif blib.coords.yf == 1 then
            blib.coords.y = blib.coords.y - 1
        elseif blib.coords.yf == -1 then
            blib.coords.y = blib.coords.y + 1
        end
        return true
    end
    return false
end

function blib.MapUp()
    if(turtle.up()) then
        blib.coords.z = blib.coords.z + 1
        return true
    end
    return false
end

function blib.MapDown()
    if(turtle.down()) then
        blib.coords.z = blib.coords.z - 1
        return true
    end
    return false
end

function blib.MapTurnRightDig()
    blib.MapTurnRight()
    blib.DetectAndDig()
    blib.MapForward()
    blib.MapTurnRight()
end

function blib.MapTurnLeftDig()
    blib.MapTurnLeft()
    blib.DetectAndDig()
    blib.MapForward()
    blib.MapTurnLeft()
end

function blib.DumpItemsExistingChest()
    print("Dumping Items")
    for slot = 1, slotCount do
        turtle.select(slot)
        if(turtle.getItemDetail(slot) ~= nil) then
            local item = turtle.getItemDetail(slot)
            if(item.name ~= "minecraft:coal" and item.name ~= "minecraft:chest" and item.name ~= "minecraft:torch" and item.name ~= "minecraft:charcoal") then
                turtle.drop()
            end
        end
    end
    return true
end

-- location requires .x, .y, .z, .xf, .yf
function blib.NavigateTo(loc)



end



-------------------------------------------------------------------------------------------------------------------------

slotCount = 16 --This library is meant for turtles, which have 16 slots

function blib.Clear()
    term.clear()
    term.setCursorPos(1,1)
end




--Checks fuel level and refules if fuel level is less than 10
--refuels by checking each slot for fuel
--returns true or false upon success or failure respectively
function blib.CheckFuel(fuelLevel)
    local returnVal = false
    if(turtle.getFuelLevel() < fuelLevel) then
        for slot = 1, slotCount do
            print("Attempting to refuel on slot " .. slot)
            turtle.select(slot)
            local SlotInfo = turtle.getItemDetail(slot)
            if(SlotInfo ~= nil and (SlotInfo.name == "minecraft:coal" or SlotInfo.name == "minecraft:charcoal")) then
                while(turtle.getFuelLevel() < fuelLevel) do
                    if(not turtle.refuel(1)) then --turtle.refuel(# of items you want to refuel) e.g. 1 coal, 1 bucket of lava, etc
                        return false
                    end
                end
                return true
            end
        end
        return false
    end
    return true
end

function blib.PlaceTorch(direction)
    local torchIdx = blib.GetItemIndex("minecraft:torch")
    if(torchIdx == nil) then
        return false
    end
    if(direction == "up") then
        turtle.digUp()
        turtle.select(torchIdx)
        turtle.placeUp()
        return true
    elseif(direction == "left") then
        turtle.turnLeft()
        turtle.dig()
        turtle.select(torchIdx)
        turtle.place()
        turtle.turnRight()
        return true
    end
    turtle.digDown()
    turtle.select(torchIdx)
    turtle.placeDown()
    return true
end

----------------------------- INVENTORY MANAGEMENT -----------------------------------------------------------------


--Checks if all inventory slots are full
--if full returns true
function blib.InventoryFull()
    local sum = 0
    for slot = 1, slotCount do
        if(turtle.getItemCount(slot) > 0) then
            sum = sum + 1
        end
    end
    if (sum == slotCount) then
        return true
    end
    return false
end

--Dumps all items EXCEPT coal and torches into a chest, and leaves it there that hopefully the turtle is carrying
-- returns true upon success, false if otherwise
function blib.DumpItemsChest()
    print("Attempting to dump items")
    local idx = blib.GetItemIndex("minecraft:chest")
    if idx == nil then
        return false
    end
    turtle.select( idx )
    turtle.digDown()
    turtle.placeDown()
    print("Dumping Items")
    for slot = 1, slotCount do
        turtle.select(slot)
        if(turtle.getItemDetail(slot) ~= nil) then
            local item = turtle.getItemDetail(slot)

            if(item.name ~= "minecraft:coal" and item.name ~= "minecraft:chest" and item.name ~= "minecraft:torch" and item.name ~= "minecraft:charcoal") then
                turtle.dropDown()
            end
        end
    end
    return true
end

--Dumps all items EXCEPT coal and torches into an enderchest its carrying
function blib.DumpItemsEnderChest()
    print("Attempting to dump items")
    local idx = blib.GetItemIndex("minecraft:ender_chest")
    if idx == nil then
        return false
    end
    turtle.select(idx)
    turtle.digUp()
    turtle.placeUp()
    print("Dumping Items")
    for slot = 1, slotCount do
        turtle.select(slot)
        if(turtle.getItemDetail(slot) ~= nil) then
            local item = turtle.getItemDetail(slot)

            if(item.name ~= "minecraft:coal" and itemname ~= "minecraft:torch") then
                turtle.dropUp()
            end
        end
    end
    turtle.digUp()
end

--Checks each inv slot for enderchest
--returns ender chest slot number OR nil if unsuccessful
function blib.GetItemIndex(searchItem)
    assert(type(searchItem) == "string", "expected string defining minecraft item")
    print("Searching for " .. searchItem)
    for slot = 1, slotCount do -- for(int i=0; i<16; i++), but lua uses 1 as start index, cringe.
        local item = turtle.getItemDetail(slot)
        if(item ~= nil) then
            if(item.name == searchItem) then
                return slot
            end
        end
    end
    return nil
end

function blib.SelectItem(searchItem)
    local idx = blib.GetItemIndex(searchItem)
    if(idx ~= nil) then
        turtle.select(idx)
        return true
    end
    return false
end

---------------------------------------------- EZ MINING --------------------------------------------------------------------

--For cases of gravel, sand, etc
function blib.DetectAndDig()
    while(turtle.detect()) do
        turtle.dig()
    end
end

-- Detects and Digs, then digs Up and Down (obvis)
function blib.Forward3()
    blib.DetectAndDig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
end

-- for edges, end of block, square, etc
function blib.TurnRightDig()
    turtle.turnRight()
    blib.Forward3()
    turtle.turnRight()
end

-- ^^^ same as above (but left!)
function blib.TurnLeftDig()
    turtle.turnLeft()
    blib.Forward3()
    turtle.turnLeft()
end

function blib.table_deepcopy(orig)
    local orig_type = type(orig)
    local copy
    if orig_type == 'table' then
        copy = {}
        for orig_key, orig_value in next, orig, nil do
            copy[blib.table_deepcopy(orig_key)] = blib.table_deepcopy(orig_value)
        end
        setmetatable(copy, blib.table_deepcopy(getmetatable(orig)))
    else -- number, string, boolean, etc
        copy = orig
    end
    return copy
end

-- os.shutdown is a thing
-- local user_input = io.read() or sum. lit.


return blib