-- >> Variables << --
DNSF = false
mainOpts = { -- Will be replaced in future version
    "Options",
    "",
    "Settings",
    "Close",
}
run = true -- Sets main loop dependancy to true
local dir = shell.dir().."/"
local settings = {}
local build = 160
if not fs.exists("/loc/browser/userSet") then
  local file = fs.open("/loc/browser/userSet","w")
  local dat = {
    btnColor = colors.gray,
    bgColor = colors.lightGray,
    mainColor = colors.white,
    textColor = colors.white
  }
  file.write(textutils.serialize(dat))
  file.close()
end

local file = fs.open("/loc/browser/userSet","r")
userSet = textutils.unserialize(file.readAll())
file.close()

-- >> Functions << --

-- center
function center(text,y,col)
  if col~=nil then
    term.setTextColor(userSet.textColor)
  end
    local w,h = term.getSize()
    local x = ((w/2)-(#text/2))+1
    term.setCursorPos(x,y)
    write(text)
end

-- click
function click()
  event, xB, xX, xY = os.pullEvent("mouse_click")
end

-- keyPress
function keyPress()
  event, keyB = os.pullEvent("key_press")
end

-- settings
function settings()
  setRun = true
  repeat
    term.setBackgroundColor(userSet.bgColor)
    term.setTextColor(userSet.textColor)
    term.clear()
    center("Inzernet Browser Settings",1)
    paintutils.drawPixel(51,1,colors.red)
    term.setCursorPos(51,1)
    write("X")
    term.setBackgroundColor(userSet.bgColor)
    center("Change main background color",3)
    center("Change main button color",5)
    center("Change secondary background color",7)
    local event, button, x, y = os.pullEvent("mouse_click")
    if button == 1 and x==51 and y==1 then
      setRun = false
    elseif button == 1 and y==3 then
      local colSel = colorSel()
      userSet.bgColor = colSel
      upSet()
    elseif button == 1 and y==5 then
      local colSel = colorSel()
      userSet[btnColor] = colSel
      upSet()
    elseif button == 1 and y==7 then
      local colSel = colorSel()
      userSet[mainColor] = colSel
      upSet()
    end
  until setRun ~= true
end

-- upSet
function upSet()
  local h = fs.open("/loc/browser/userSet","w")
  h.write(textutils.serialize(userSet))
  h.close()
end

-- drawMain
function drawMain()
  term.setBackgroundColor(userSet.mainColor)
  term.clear()
  paintutils.drawLine(1,1,51,1,userSet.bgColor)
  term.setCursorPos(1,1)
  write("[^]")
  paintutils.drawLine(4,1,50,1,userSet.btnColor)
  term.setCursorPos(4,1)
  write("Click here to browse...")
  term.setBackgroundColor(colors.red)
  term.setCursorPos(51,1)
  write("X")
end

-- drawWebsite
function drawWebsite(var1)
  local rawIP = inzernet.lookup(var1)
  if rawIP ~= false then
  term.setTextColor(colors.black)
  print(rawIP)
    local page = inzernet.GET(rawIP, "index")
    print("debug again")
    if page ~= false then
      inzernet.write(page,var1)
      inzernet.display(1,var1)
    else
      print("nope!")
      sleep(2)
    end
  end
  term.setTextColor(userSet.textColor)
end

-- urlBar()
function urlBar()
  paintutils.drawLine(4,1,50,1,userSet.btnColor)
  term.setCursorPos(4,1)
  term.setTextColor(userSet.textColor)
  local var = read()
  return var
end

-- colorSel
function colorSel()
  colSelRun = true
  while true do
    term.setBackgroundColor(userSet.bgColor)
    term.clear()
    center("Select a color",1)
    center("Black",3,colors.black)
    center("Gray",4,colors.gray)
    center("Light Gray",5,colors.lightGray)
    center("Red",6,colors.red)
    center("Blue",7,colors.blue)
    center("Pink",8,colors.pink)
    center("Purple",9,colors.purple)
    local event, button, x, y = os.pullEvent("mouse_click")
    if button == 1 and y==3 then
      return colors.black
    elseif button == 1 and y==4 then
      return colors.gray
    elseif button == 1 and y==5 then
      return colors.lightGray
    elseif button == 1 and y==6 then
      return colors.red
    elseif button == 1 and y==7 then
      return colors.blue
    elseif button == 1 and y==8 then
      return colors.pink
    elseif button == 1 and y==9 then
      return colors.purple
    end
  end
end

-- mainFunc
function mainFunc()
  click()
  if xB == 1 and xX>=1 and xX<=3 and xY == 1 then
    local opSel = dropMenu(1,2,mainOpts)
    if opSel == 3 then
      settings()
    end
  elseif xB == 1 and xX>=4 and xX<=50 and xY == 1 then
    local url = urlBar()
    drawWebsite(url)
  elseif xB == 1 and xX==51 and xY==1 then
    run = false
  end
end

-- dropMenu
function dropMenu(x,y,opts)
  for yD=y,(y+#opts)-1 do
    paintutils.drawLine(x,yD,x+10,yD,userSet.bgColor)
  end
  for k,v in pairs(opts) do
    term.setCursorPos(x,y+k-1)
    write(v)
  end
  local event, button, xPos, yPos = os.pullEvent("mouse_click")
  if xPos>=x and xPos<=x+10 and yPos>=y and yPos<=y+#opts then
    return (yPos-y)+1
  end
end

-- >> Startup << --

-- Loads inzernet API for program
os.loadAPI("/loc/browser/includes/inzernet")

-- Startup InZernet API
inzernet.startup()

-- Creates webDis
webDis = window.create(term.native(),1,2,51,18)

-- >> Main Loop << --
repeat
  drawMain()
  term.setBackgroundColor(colors.black)
  mainFunc()
until run ~= true