sf = require("structure")
local pf = require("pathfinding")
local im = require("inventorymanager")
local origin = vector.new(-15,235,120)
function build(chunk)
    local x,y,z = stringtovec(chunk)
    store = {height = 0}
    grocerylist = {}
    for h = 1,8 do
        store[h] = {width = 0}
        for w = 1,8 do
            store[h][w] = {depth = 0}
            for d = 1,8 do
                bool, block = sf.blockat(x+w,z+d,y+h)
                if bool then
                    store[h][w][d] = block
                    store[h][w].depth = d
                    grocerylist[store[h][w][d]] =
                        (grocerylist[store[h][w][d]] or 0)+1
                end
            end
            if store[h][w].depth>0 then
                store[h].width = w
            end
        end
        if store[h].width>0 then
            store.height = h
        end
    end
    if store.height==0 then
        --print("cell at",x,y,z,"is done")
        return true

    end
    flag = false
    count = im.countinventory()
    for k,v in pairs(grocerylist) do
        if (count[k] or -1) < v then
            print("not enough "..k.." need "..v.." of it")
            flag = true
        end
    end
    if turtle.getFuelLevel() < 2000 then
        print("too lazy for that")
        flag = true
    end
    if flag then
        pf.to(vector.new(pf.home.x,position.y+8,pf.home.z))
        pf.returnHome()
        return false
    end
    pf.to(origin + vector.new(x+1,y+8,z+1))
    flag = false
    for w = 1,8 do
        for h = 1,8 do
            for d = 1,8 do
                if store[h][w][d] then
                    pf.to(origin+vector.new(x+w,y+h,z+d))
                    im.select(store[h][w][d])
                    turtle.placeDown()
                    flage = true
                end
            end
        end
    end
    if flag and im.select("minecraft:birch_sign") then
        pf.to(position+vector.new(0,1,0))
        turtle.placeDown(chunk)
    end
    
    return true
end

function stringtovec(str)
    parts = {}
    for part in string.gmatch(str, "([^,]+)") do
        table.insert(parts, tonumber(part))
    end
    return unpack(parts)
end

repeat
    rednet.send(1,(_G.position-origin):tostring(),"getnexttobuild")
    _,chunk = rednet.receive("nexttobuild")
until not build(chunk)

rednet.send(1,chunk,"failedtobuild")

pf.returnHome()