infobeamer-testcard/node.lua

node.alias "testcard"
util.init_hosted()

local json = require "json"

local serial = sys.get_env "SERIAL"
local location = ""
local description = "<please wait>"

util.data_mapper{
    ["device_info"] = function(info)
        info = json.decode(info)
        location = info.location
        description = info.description
    end
}

gl.setup(NATIVE_WIDTH, NATIVE_HEIGHT)

card = resource.load_image("testcard.png")
font = resource.load_font("vera.ttf")

local v = {}

util.data_mapper{
    ["update/(.*)"] = function(key, val)
        v[key] = val
    end
}

function node.render()
    gl.clear(0,0,0,1)

    card:draw(0, 0, 1920, 1080)

    -- upper: 623
    -- lower: 707

    upper_text = "CCC: " .. description

    if location == nil or location == '' then
        lower_text = "Serial " .. serial
    else
        lower_text = location .. " - Serial " .. serial
    end

    upper_width = font:width(upper_text, 40)
    font:write(960-(upper_width/2), 631, upper_text, 40, 1,1,1,1)

    lower_width = font:width(lower_text, 20)
    font:write(960-(lower_width/2), 679, lower_text, 20, 1,1,1,1)

    -- available space y: 400 to 700
    -- left x: 50
    -- right x: TODO
    local size = 40
    local x_left = 50
    local x_right = 1000

    -- left side: network config, online status
    if v.network then
        font:write(50, 400, "Mode: " .. v.network, size, 1,1,1,1)
    end
    
    if v.online then
        local col = {1,0,0,1}
        if v.online == "online" then
            col = {0,1,0,1}
        end
        font:write(50, 450, v.online, size, col)
    end
    
    -- right side: IP address
    if v.ethip then
        font:write(1000, 400, "Eth IPv4:  " .. v.ethip, size, 1,1,1,1)
    end

    if v.wlanip then
        font:write(1000, 450, "WiFi IPv4: " .. v.wlanip, size, 1,1,1,1)
    end

    if v.gw then
        font:write(1000, 500, "Gateway:   " .. v.gw, size, 1,1,1,1)
    end

end