terminal

os.pullEvent = os.pullEventRaw
function fullLimitWrite(text,limit)
    term.write(#text < limit+1 and text..(string.rep(" ",limit-#text)) or string.sub(text,1,limit-3).."...")
end

function dualPull(...)
    local args={...}
    repeat
        local event = {os.pullEvent()}
        for i,v in pairs(args) do
            if event[1] == v then
                return event[1],event[2],event[3],event[4],event[5],event[6]
            end
        end
    until false
end

function continue(text,ypos)
    local maxx,maxy = term.getSize()
    while true do
        local event, button, x, y = os.pullEvent("mouse_click")
        if x >= math.ceil((maxx/2)-(#text/2)) and x < (math.ceil((maxx/2)-(#text/2)) + #text) and y == ypos then
            break
        end
    end
end

local function centerWrite(text,setY)
    local x,y = term.getSize()
    term.setCursorPos(math.ceil((x / 2) - (#text / 2)), setY)
    write(text)
end
local success = os.loadAPI("itemData")
local items = (success and itemData.data) or {}

local curItem = 1

term.setBackgroundColor(colors.white)
term.clear()
term.setTextColor(colors.red)
centerWrite("Crimson Co. Terminal",1)
term.setTextColor(colors.black)
centerWrite("Crimson Co. is a company dedicated",4)
centerWrite("to bringing you the finest and cheapest goods",5)
centerWrite("for all your essential needs.",6)
term.setBackgroundColor(colors.lightGray)
centerWrite("Continue to Browser",16)

continue("Continue to Browser",16)
local info = window.create(term.native(),13,1,39,19)

while true do
local timr = os.startTimer()
term.setBackgroundColor(colors.white)
term.clear()
paintutils.drawLine(12,1,12,19,colors.black)
term.setBackgroundColor(colors.white)
for i=-9,9 do
term.setCursorPos(1,10+i)
if items[curItem+i] then
    fullLimitWrite(items[curItem+i].name,11)
end
end
term.setBackgroundColor(colors.lightBlue)
term.setTextColor(colors.black)
term.setCursorPos(1,10)
fullLimitWrite(items[curItem].name)
term.redirect(info)
term.setBackgroundColor(colors.white)
term.setTextColor(colors.black)
term.clear()
centerWrite("Name",1)
centerWrite(items[curItem].name,2)
centerWrite("Price",5)
centerWrite(items[curItem].price,6)
centerWrite("Location",9)
centerWrite(items[curItem].location,10)
centerWrite("Info",13)
centerWrite(items[curItem].info,14)
term.redirect(term.native())

local event, button, x, y = dualPull("mouse_click","mouse_scroll","timer")
if event == "mouse_click" then
    if x < 13 and (curItem - (10 - y)) < #items and (curItem - (10 - y)) > 0 then
        curItem = (curItem - (10 - y))
    end
    if x == 51 and y == 1 then
        break
    end
elseif event == "mouse_scroll" then
    curItem = curItem + button
    if curItem <=0 then
        curItem = #items
    elseif curItem > #items then
        curItem = 1
    end
    sleep(0) -- Stops scroll wheel from going down/up 3 times
elseif event == "timer" and button == timr then
    os.reboot()
end

end