local function dothething()
local function wordwrap(str)
    local x,y = term.getCursorPos()
    local tW,tH = term.getSize()
    for w in str:gmatch("%S+") do
        local x1,y1 = term.getCursorPos()
        if x1+(#w*3) >= tW then
            bigfont.bigPrint(" ")
            local x2,y2 = term.getCursorPos()
            term.setCursorPos(x,y2)
        end
        bigfont.bigWrite(w.." ")
    end
end
--local ico = lUtils.asset.load("User/Cloud/Images/New_Loading.limg") -- replace with actual filepath later
local f = http.post("https://os.leveloper.cc/sGet.php","path="..textutils.urlEncode("LevelOS/assets/loading.limg").."&code="..textutils.urlEncode("lSlb8kZq"),nil).readAll()
local ico = textutils.unserialize(f)
for t=1,#ico do
    for l=1,#ico[t] do
        ico[t][l][2] = string.gsub(ico[t][l][2],"T","9")
        ico[t][l][3] = string.gsub(ico[t][l][3],"T","9")
    end
end
local frame = 1
local prog = 0
local icoX,icoY
local function renderIco(frame)
    local f = ico[frame]
    for l=1,#f do
        term.setCursorPos(icoX,icoY+(l-1))
        term.blit(unpack(f[l]))
    end
end
local function progress()
    while true do
        renderIco(frame)
        term.setCursorPos(icoX+5,icoY+1)
        term.write(math.floor(prog + 0.5).."% complete")
        if badConn then
    term.setCursorPos(x, icoY+5)
    print("Having trouble connecting, please hang on...")
    end
        os.sleep(0.1)
        frame = frame+1
        if frame > #ico then
            frame = 1
        end
    end
end


local function fread(file)
    local f = fs.open(file,"r")
    local o = f.readAll()
    f.close()
    return o
end

local function fwrite(file,content)
    local f = fs.open(file,"w")
    f.write(content)
    f.close()
    return true
end


local badConn = false
local function render()
    term.setBackgroundColor(colors.cyan)
    term.setTextColor(colors.white)
    term.clear()
    local w,h = term.getSize()
    local x = 2
    if w > 51 then
        x = math.floor(x+((w-51)/4))
    end
    term.setCursorPos(x,3)
    wordwrap("Installing LevelOS")
    bigfont.bigPrint(" ")
    local x1,y1 = term.getCursorPos()
    term.setCursorPos(x,y1+2)
    print("This might take a while. Don't turn off your computer.")
    local x1,y1 = term.getCursorPos()
    icoX,icoY = x,y1+1
    -- perhaps a cancel button if i ever feel like it
end
render()
local function events()
    while true do
        local e = {os.pullEvent()}
        -- process things if buttons
        if e[1] == "term_resize" then
            render()
        end
    end
end

local hpost = function(...)
while true do
local ret = table.pack(http.post(...))
if not ret[1] then
badConn = true
render()
os.sleep(0.5)
else
badConn = false
return table.unpack(ret, 1, ret.n)
end
end
end

local function getField(thing,fieldname)
    if string.find(thing,"<"..fieldname..">",1,true) ~= nil and string.find(thing,"</"..fieldname..">",1,true) ~= nil then
        begin = nil
        ending = nil
        trash,begin = string.find(thing,"<"..fieldname..">",1,true)
        ending,ending2 = string.find(thing,"</"..fieldname..">",begin+1,true)
        if begin ~= nil and ending ~= nil then
            return string.sub(thing,begin+1,ending-1),string.sub(thing,1,trash-1)..string.sub(thing,ending2+1,string.len(thing))
        end
    end
    return nil
end

local function download(pth)
    local f = hpost("https://os.leveloper.cc/sGet.php","path="..textutils.urlEncode(pth).."&code="..textutils.urlEncode("lSlb8kZq"),{Cookie=userID}).readAll()
    if f ~= "409" and f ~= "403" and f ~= "401" then
        fwrite(pth,f)
        return true
    else
        return false
    end
end

local function downloader()
    local package = shapescape.getSlides().package

    local tFiles = 0
    local pack = package.name
    if fs.exists("LevelOS/data/settings.lconf") then
        local set = textutils.unserialize(fread("LevelOS/data/settings.lconf"))
        if set.package then
            pack = set.package
        end
    end

    local tree = {}
    local folders = {}
    local function searchFolder(folder)
        --print("Searching folder root/"..folder)
        local f = hpost("https://os.leveloper.cc/sGet.php","path="..textutils.urlEncode(folder).."&code="..textutils.urlEncode("lSlb8kZq"),nil).readAll()
        --print(f)
        local f2 = f
        while true do
            local file = nil
            file,f = getField(f,"file")
            if not file then
                break
            else
                local name = getField(file,"name")
                local timestamp = getField(file,"timestamp")
                timestamp = tonumber(timestamp)
                if pack == "Full" or fs.exists(fs.combine(folder,name)) then
                    tree[fs.combine(folder,name)] = {timestamp=timestamp}
                    tFiles = tFiles+1
                end
                --print("Found "..fs.combine(folder,name))
            end
        end
        f = f2
        while true do
            local file = nil
            file,f = getField(f,"folder")
            if not file then
                break
            else
                local name = getField(file,"name")
                if not fs.exists(fs.combine(folder,name)) then
                    fs.makeDir(fs.combine(folder,name))
                end
                folders[fs.combine(folder,name)] = ""
                searchFolder(fs.combine(folder,name))
            end
        end
        return true
    end

    if not searchFolder("") then return false end
    
    if pack == "Full" then
        for k,v in pairs(tree) do
            table.insert(package,k)
        end
    end
    
    -- check if name is full, if it is then first list the dir then add all the files to the package
    for p=1,#package do
        prog = ((p-1)/#package)*100
        download(package[p])
        prog = ((p)/#package)*100
    end
    local temp = hpost("https://os.leveloper.cc/sGet.php","path="..textutils.urlEncode("").."&code="..textutils.urlEncode("lSlb8kZq"),{Cookie=userID}).readAll()
    local ver = getField(temp,"version")
    fwrite("LevelOS/data/version.txt",ver)
    fwrite("LevelOS/data/settings.lconf",textutils.serialize({package=pack}))
    os.sleep(2)
    os.reboot()
end
parallel.waitForAny(events,progress,downloader)
end
local ok,err = pcall(dothething)
if not ok then
    term.setCursorPos(1,1)
    term.setTextColor(colors.red)
    term.write(err)
end