check owners online

local component = require("component")
local computer = require("computer")
local json = require("json")
local gpu = component.gpu
local terminal = require("term")
local fs = require("filesystem")
local shell = require("shell")
local unicode = require("unicode")

gpu.setResolution(37, 17)
local w, h = gpu.getResolution()

local color = {
    green = 0x00ff00,
    yellow = 0xffb600,
    red = 0xff0000
}

local url = "https://api.minetools.eu/query/s9.mcskill.net/25675"

local owners = {
    "FERROUS",
    "Hedboys",
    "deadinsideclown",
    "xixiii"
}

local status = {
    "online ",
    "offline"
}

function dump(table)
    if type(table) == 'table' then
       local s = '{ '
       for k,v in pairs(table) do
          if type(k) ~= 'number' then k = '"'..k..'"' end
          s = s .. '['..k..'] = ' .. dump(v) .. ','
       end
       return s .. '} '
    else
       return tostring(table)
    end
end

function parseJson(string)
    return json:decode(string)
end

function readFile()
    local dataFromFile
    if fs.exists("/home/infoServer.json") then
        local file = io.open("/home/infoServer.json", "r")
        dataFromFile = file:read("*a")
        file:close()
    end
    return dataFromFile
end

function drawBorder()
    gpu.setForeground(color.green)

    gpu.fill(1, 1, w, 1, "-")
    gpu.fill(1, h, w, 1, "-")
    gpu.fill(1, 0, 1, h + 1, "|")
    gpu.copy(1, 0, 1, h + 1, w - 1, 0)
end

function drawOwners(owner, yPos, indexStatus, colorStatus)
    gpu.setForeground(color.yellow)
    gpu.set(w / 5, (yPos * 2) + yPos, owner)
    gpu.setForeground(colorStatus)
    gpu.set(w - 10, (yPos * 2) + yPos, status[indexStatus])
end

for i = 1, #owners do
    computer.addUser(owners[i])
end

while true do
    terminal.clear()

    local center = (w / 2) / 2

    drawBorder()

    gpu.setForeground(color.green)
    gpu.set(center, 1, "[")
    gpu.setForeground(color.yellow)
    gpu.set(center + 1, 1, "Владельцы /warp SKY")
    gpu.setForeground(color.green)
    gpu.set(center + unicode.len("Владельцы /warp SKY") + 1, 1, "]")
    gpu.setForeground(color.green)
    gpu.set(w / 5 - 2, h - 2, "По всем вопросам: /w nickname")

    local downloadFile = shell.execute("wget " .. url .. " " .. "/home/infoServer.json" .. " -fQ")
    local response = readFile()

    if response then
        local list = parseJson(response)["Playerlist"]
        for i = 1, #owners do
            drawOwners(owners[i], i, 2, color.red)
            if list then
                for j = 1, #list do
                    if owners[i] == list[j] then
                        drawOwners(owners[i], i, 1, color.green)
                    end
                end
            end
        end
    end

    os.sleep(60)
end