-- Saving the first coordinate of the turtle BEFORE program starts

print("Currently saving location!")

local x1, y1, z1 = gps.locate()

print("How far do you want me to go mining?\n")
local length = io.read()

function checkUp()
    local success, data = turtle.inspectUp()
    if ((success) and (data.name ==  "minecraft:diamond_ore" or data.name == "minecraft:coal_ore" or data.name == "minecraft:redstone_ore" or data.name == "minecraft:emerald_ore" or data.name == "minecraft:lapis_ore" or data.name == "minecraft:iron_ore" or data.name == "minecraft:ancient_debris")) then
        turtle.digUp()
        turtle.up()
    end
end

function checkLeft()
    turtle.turnLeft()
    local success, data = turtle.inspect()
    if ((success) and (data.name ==  "minecraft:diamond_ore" or data.name == "minecraft:coal_ore" or data.name == "minecraft:redstone_ore" or data.name == "minecraft:emerald_ore" or data.name == "minecraft:lapis_ore" or data.name == "minecraft:iron_ore" or data.name == "minecraft:ancient_debris")) then
        turtle.dig()
        turtle.forward()
        turtle.turnRight()
    else
        turtle.turnRight()
    end
end

function checkRight()
    turtle.turnRight()
    local success, data = turtle.inspect()
    if ((success) and (data.name ==  "minecraft:diamond_ore" or data.name == "minecraft:coal_ore" or data.name == "minecraft:redstone_ore" or data.name == "minecraft:emerald_ore" or data.name == "minecraft:lapis_ore" or data.name == "minecraft:iron_ore" or data.name == "minecraft:ancient_debris")) then
        turtle.dig()
        turtle.forward()
    else
        turtle.turnLeft()
    end
end

function checkDown()
    local success, data = turtle.inspectDown()
    if ((success) and (data.name ==  "minecraft:diamond_ore" or data.name == "minecraft:coal_ore" or data.name == "minecraft:redstone_ore" or data.name == "minecraft:emerald_ore" or data.name == "minecraft:lapis_ore" or data.name == "minecraft:iron_ore" or data.name == "minecraft:ancient_debris")) then
        turtle.digDown()
        turtle.Down()
    end
end

function checkFront()
    local success, data = turtle.inspect()
    if ((success) and (data.name ==  "minecraft:diamond_ore" or data.name == "minecraft:coal_ore" or data.name == "minecraft:redstone_ore" or data.name == "minecraft:emerald_ore" or data.name == "minecraft:lapis_ore" or data.name == "minecraft:iron_ore" or data.name == "minecraft:ancient_debris")) then
        turtle.dig()
        turtle.forward()
    end
end
-- Side note : Kill urself after ur done with this fucking stupid shit mining program

for a = length, 1, -1
do
    turtle.dig()
    turtle.forward()

    local xNew, yNew, zNew = gps.locate()
    checkUp()
        checkUp()
            checkUp()
                checkUp()
                for 3, 1, -1
                do
                    turtle.down()
                end
    checkLeft()
        checkLeft()
            checkLeft()
            turtle.turnRight()
            for 3, 1, -1
            do
                turtle.forward()
            end
            turtle.turnLeft()
    -- Seperate cuz my mind stupid

    checkDown()

    -- Seperate cuz my mind stupid

    checkLeft()

    -- Seperate cuz my mind stupid

    checkRight()

end

-- Saving the coordinaates of the turtle AS SOON AS IT'S DONE mining

local x2, y2, z2 = gps.locate()

-- If the new x-coord is less than the first, then go West (vice versa)

if x2 < x1 then
    goEast = true
    goWest = false
elseif x2 > x1 then
    goWest = true
    goEast = false
else
    goEast = false
    goWest = false
end

-- If the new y-coord is less than the first, then go Up (vice versa)

if y2 < y1 then
    goUp = true
    goDown = false
elseif y2 > y1 then
    goDown = true
    goUp = false
else
    goDown = false
    goUp = false
end

-- If the new z-coord is less than the first, then go North (vice versa)

if z2 < z1 then
    goSouth = true
    goNorth = false
elseif z2 > z1 then
    goNorth = true
    goSouth = false
else
    goSouth = false
    goNorth = false
end

-- While a block is in front, dig

while turtle.detect() == true
do
    turtle.dig()
end

-- Move forward ONCE

turtle.forward()

-- Refresh GPS location (for calibrating direction of turtle)

local x3, y3, z3 = gps.locate()

-- If the turtle's x-coordinate gets bigger, it is facing East (vice versa)

if x3 > x2 then
    faceEast = true
    faceWest = false
    faceNorth = false
    faceSouth = false
elseif x3 < x2 then
    faceWest = true
    faceEast = false
    faceNorth = false
    faceSouth = false
end

-- If the turtle's z-coordinate gets bigger, it is facing South (vice versa)

if z3 > z2 then
    faceSouth = true
    faceNorth = false
    faceEast = false
    faceWest = false
elseif z3 < z2 then
    faceNorth = true
    faceSouth = false
    faceEast = false
    faceWest = false
end

-- Match z-coords to the beginning position
if ((faceNorth == true and goNorth == true) or (faceSouth == true and goSouth == true)) then
    for a = math.abs(z3 - z1), 1, -1
    do
        while turtle.detect() == true
        do
            turtle.dig()
        end
        turtle.forward()
    end
end
if ((faceNorth == true and goSouth == true) or (faceSouth == true and goNorth == true)) then
    turtle.turnRight()
    turtle.turnRight()

    for b = math.abs(z3 - z1), 1, -1
    do
        while turtle.detect() == true
        do
            turtle.dig()
        end
        turtle.forward()
    end
end

-- Match x-coords to the beginning position
if ((faceEast == true and goEast == true) or (faceWest == true and goWest == true)) then
    for c = math.abs(x3 - x1), 1, -1
    do
        while turtle.detect() == true
        do
            turtle.dig()
        end
        turtle.forward()
    end
end
if ((faceEast == true and goWest == true) or (faceWest == true and goEast == true)) then
    turtle.turnRight()
    turtle.turnRight()

    for d = math.abs(x3 - x1), 1, -1
    do
        while turtle.detect() == true
        do
            turtle.dig()
        end
        turtle.forward()()
    end
end

-- Match y-coords to the beginning position
if (goUp == true) then
    for e = math.abs(y3 - y1), 1, -1
    do
        while turtle.detectUp() == true
        do
            turtle.digUp()
        end
        turtle.Up()
    end
end
if (goDown == true) then
    for f = math.abs(y3 - y1), 1, -1
    do
        while turtle.detectDown() == true
        do
            turtle.digDown()
        end
        turtle.Down()
    end
end