Settings Application

local tArg = {...}
local Username = "guest"
local UserPortrait = "os/UI/Icons/UserDefaultPortrait.nfp"
local w, h = term.getSize()

local User_AppKeys = {}

local DeskBackOptions = {{"Sunny Day","os/UI/Desk_Back1.nfp"},{"Window","os/UI/Desk_Back2"}}
settings.load("os/settings.txt")

local Menus = {{"AppKeys",{"User Keys:",User_AppKeys}}}--title,info,buttons(text,action,

local Opts ={}--settingsname,editType(file or setting), name, other

local function Mid(text)
local Tw = string.len(text)
local X = w/2 - Tw/2
return X
end

function UserAccount(action,a,b,c)
if action == "open" then
    local file = fs.open(fs.combine("os/System/Users",Username,"UserAccount.txt"),"r")
    UserPortrait = file.readLine()
    file.close()
end
end

function HomeScreen()
App.Clear()
App.setBackground(colors.white)
App.setTextColor(colors.black)
App.newImage("ProfileIcon",UserPortrait,2,2)
App.newText("accountName",Username,2,1)
App.newButton("button_account","Account","tsk.openAccount",10,2)
App.newButton("button_Display","Display","tsk.openDisplay",10,4)
end

function AccountPage()
App.setBackground(colors.lightGray)
OpenPg("Account")
App.newText("text_username",Username,Mid(Username),3)
App.newImage("image_ProfileIcon",UserPortrait,2,3)
if Username == "Guest" then
    App.newText("Alert1","finish account setup",Mid("finish account setup"),6)
    App.newText("Alert2","setup your account at any available terminals that support this device",1,7)
else
    App.newButton("button1","change portrait","tsk.openPortraits",1,6)
    App.newButton("button2","app keys","tsk.openMenu_AppKeys",1,7)
end
end

function OpenMenu(I)
App.Clear()
App.newButton("return","return","tsk.home",1,1)
App.newText("title",Menus[I][1],3 + Mid(Menus[I][1]),1)
local Y = 2
if Menus[I][2] ~= -1 then
    for i = 1, #Menus[I][2] do
        term.setCursorPos(1,Y)
        term.write(Menus[I][2][i])
        Y = Y + 1
    end
end
end

function DisplayPage()
OpenPg("Display")
App.newText("text_Displays","Menus",1,3)
App.newButton("button_DeskBack","desktop","tsk.desktopBackground_Menu",1,5)
end

function BackgroundMenu(Menu,options)
OpenPg(Menu)
for i = 1, #options do
    App.newButton("button"..i,options[i][1],"tsk.setDesktopBack_"..i,1,(i * 2) + 2)
end
end

function OpenPg(name,options)
App.Clear()
local tw = string.len(name)
local x = w/2 - tw/2
App.newText("title",name,x,1)
App.newButton("button_return","return","tsk.home",1,1)
end

function GetVariables()
local F1 = fs.open(fs.combine("os/System/Users",settings.get("active_user"),"UserKeys.txt"),"r")
User_AppKeys = textutils.unserialize(F1.readAll())
F1.close()
end

Username = settings.get("active_user")
UserAccount("open")
GetVariables()
if tArg[1] == "start" then
    HomeScreen()
else
    if tArg[1] == "openAccount" then
        AccountPage()
    elseif tArg[1] == "openDisplay" then
        DisplayPage()
    elseif tArg[1] == "home" then
        HomeScreen()
    else
        if tArg[1] == "desktopBackground_Menu" then
            BackgroundMenu("desktop", DeskBackOptions)
        elseif string.find(tArg[1],"setDesktopBack_") then
            settings.set("screen_desktop_background",DeskBackOptions[textutils.unserialize(string.sub(tArg[1],string.len(tArg[1])))][2])
            settings.save("os/settings.txt")
        elseif string.find(tArg[1],"openMenu") then
            OpenMenu(string.sub(tArg[1],10,string.len(tArg[1])))
        end
    end
end