NetPrint Install

local function clear()
    term.clear()
    term.setCursorPos(1, 1)
end

local function get(user, repo, bran, path, save)
    if not user or not repo or not bran or not path then
        error("not enough arguments, expected 4 or 5", 2)
    end
    local url = "https://raw.github.com/"..user.."/"..repo.."/"..bran.."/"..path
    local remote = http.get(url)
    if not remote then
        return false
    end
    local text = remote.readAll()
    remote.close()
    if save then
        local file = fs.open(save, "w")
        file.write(text)
        file.close()
        return true
    end
    return text
end

local function yesno(text, title, start)
    local function clear()
        term.clear()
        term.setCursorPos(1, 1)
    end

    local function drawButton(buttonText, x, y, x2, y2, enabled)
        if enabled then
            term.setBackgroundColor(colors.white)
        else
            if term.isColor() then
                term.setBackgroundColor(colors.gray)
            end
        end
        term.setCursorPos(x, y)
        for _y = y, y2 do
            for _x = x, x2 do
                term.setCursorPos(_x, _y)
                write(" ")
            end
        end
        term.setCursorPos(x+math.floor((x2-x)/2)-math.floor(buttonText:len()/2), y+math.floor((y2-y+1)/2))
        term.setTextColor(colors.black)
        write(buttonText)
        term.setTextColor(colors.white)
        term.setBackgroundColor(colors.black)
    end

    local function cprint(text)
        local x, y = term.getCursorPos()
        local w, h = term.getSize()
        term.setCursorPos(math.floor(w/2)-math.floor(text:len()/2), y)
        print(text)
    end

    local selected = true

    local function redraw()
        clear()
        cprint(title)
        term.setCursorPos(1, 3)
        print(text)
        local w, h = term.getSize()
        drawButton("Yes", 2, h-1, math.floor(w/2)-1, h-1, selected)
        drawButton("No", math.floor(w/2)+1, h-1, w-1, h-1, not selected)
    end

    if start ~= nil and type(start) == "boolean" then
        selected = start
    end
    while true do
        redraw()
        local eventData = {os.pullEventRaw()}
        if eventData[1] == "terminate" then
            clear()
            return
        elseif eventData[1] == "key" then
            if eventData[2] == keys.up or eventData[2] == keys.down or eventData[2] == keys.left or eventData[2] == keys.right then
                selected = not selected
            elseif eventData[2] == keys.enter then
                clear()
                return selected
            end
        end
        sleep(0)
    end
end

local function getFile(file, target)
    return get("jordyvl", "dual-network-printer", "master", file, target)
end

shell.setDir("")

clear()

print("Network Printing Install or Update")
print("Getting files...")
local files = {
    ["Print"] = "Dualprint/print",
    ["pview"] = "Dualprint/Connected",
    ["update.lua"] = "update",
}
local fileCount = 0
for _ in pairs(files) do
    fileCount = fileCount + 1
end
local filesDownloaded = 0

local w, h = term.getSize()
local pb
if ui and term.isColor() and ui.progressBar then
    pb = ui.progressBar(1,h-2,w,colors.green,true)
end

for k, v in pairs(files) do
    term.setTextColor(colors.black)
    term.setBackgroundColor(colors.white)
    clear()
    term.setCursorPos(2, 2)
    print("DualPrint Update!")
    term.setCursorPos(2, 4)
    print("File: "..v)
    term.setCursorPos(2, h - 1)
    if pb then
        pb.percent = math.floor(filesDownloaded / fileCount * 100)
        pb:draw()
    else
        print(tostring(math.floor(filesDownloaded / fileCount * 100)).."% - "..tostring(filesDownloaded + 1).."/"..tostring(fileCount))
    end
    local ok = getFile(k, v)
    if not ok then
        if term.isColor() then
            term.setTextColor(colors.red)
        end
        term.setCursorPos(2, 6)
        print("Error.")
        sleep(1)
    end
    filesDownloaded = filesDownloaded + 1
end
term.clear()
term.setCursorPos(1,1)
print"Install Completed"