signage: bring in from external repo

This is b28e6f07aa48f1e2f01eb37bffa180f97a7b03bd from
https://code.hackerspace.pl/q3k/love2d-signage/. We only keep code
commited by inf and q3k, and we're both now licensing this code under
the ISC license, as per COPYING in the root of hscloud.

Change-Id: Ibeee2e6923605e4b1a17a1d295867c056863ef59
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1335
Reviewed-by: informatic <informatic@hackerspace.pl>
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/hswaw/signage/nodes/newdash.lua b/hswaw/signage/nodes/newdash.lua
new file mode 100644
index 0000000..2e0f651
--- /dev/null
+++ b/hswaw/signage/nodes/newdash.lua
@@ -0,0 +1,123 @@
+local node = ThreadNode:extend('nodes.newdash', {
+  threadFile = 'nodes/newdash_thread.lua',
+  threadChannel = 'newdash',
+
+  updateInterval = 60,
+})
+
+local weatherFont = love.graphics.newFont('fonts/weathericons-regular-webfont.ttf', 165)
+local tempFont = love.graphics.newFont('fonts/Lato-Light.ttf', 120)
+local timeFont = love.graphics.newFont('fonts/Lato-Thin.ttf', 330)
+local dateFont = love.graphics.newFont('fonts/Lato-Light.ttf', 90)
+local headerFont = love.graphics.newFont('fonts/Lato-Regular.ttf', 40)
+local valueFont = love.graphics.newFont('fonts/Lato-Light.ttf', 45)
+local atFont = love.graphics.newFont('fonts/Lato-Light.ttf', 35)
+
+local weatherGlyphs = {
+  snow = "",
+  mist = "",
+  clear = "",
+  -- clouds = "",
+  clouds = "", -- x---DDD
+  drizzle = "",
+}
+
+function node:spejsiotData(node_id, endpoint, parameter)
+  if self.state.spejsiot[node_id] and self.state.spejsiot[node_id]["$online"] and self.state.spejsiot[node_id][endpoint] and self.state.spejsiot[node_id][endpoint][parameter] ~= nil then
+    return self.state.spejsiot[node_id][endpoint][parameter]
+  else
+    return nil
+  end
+end
+
+function node:renderIOTState(node_id, endpoint, parameter, x, y)
+  local rawValue =  self:spejsiotData(node_id, endpoint, parameter)
+  if rawValue == true then
+    love.graphics.setColor( 0, 1.0, 0 )
+    love.graphics.printf("ON", x, y, 400, 'left')
+  elseif rawValue == false then
+    love.graphics.setColor( 1.0, 0, 0 )
+    love.graphics.printf("OFF", x, y, 400, 'left')
+  elseif rawValue == nil then
+    love.graphics.setColor( 1.0, 0, 0 )
+    love.graphics.printf("OFFLINE", x, y, 400, 'left')
+  else
+    love.graphics.setColor( 1.0, 1.0, 1.0 )
+    love.graphics.printf(rawValue, x, y, 400, 'left')
+  end
+end
+
+function node:render()
+  love.graphics.setColor( 0, 0, 0 )
+  love.graphics.rectangle("fill", 0, 0, love.graphics.getWidth(), love.graphics.getHeight())
+
+  if self.state then
+    love.graphics.setColor( 1.0, 1.0, 1.0 )
+
+    if weatherGlyphs[self.state.weather] then
+      love.graphics.setFont(weatherFont)
+      love.graphics.print(weatherGlyphs[self.state.weather], 100, 340)
+    else
+      love.graphics.setFont(atFont)
+      love.graphics.print(self.state.weather, 100, 370)
+    end
+
+    love.graphics.setFont(tempFont)
+    love.graphics.printf(string.format("%d°", self.state.temperature), 350, 390, 270, 'center')
+
+    love.graphics.setFont(headerFont)
+    love.graphics.printf("Ambient:", 720, 380, 160, 'right')
+    love.graphics.printf("Exhaust:", 720, 440, 160, 'right')
+    love.graphics.printf("Pope:", 720, 500, 160, 'right')
+
+    love.graphics.setFont(valueFont)
+
+    if self:spejsiotData("d106e1", "environment", "degree") then
+      love.graphics.printf(string.format(
+        "%d° / %d%%RH",
+        self:spejsiotData("d106e1", "environment", "degree"),
+        self:spejsiotData("d106e1", "environment", "humidity")
+        ), 900, 378, 400, 'left')
+    else
+      love.graphics.printf("?!", 900, 378, 400, 'left')
+    end
+
+    self:renderIOTState("c0dbe7", "relay", "on", 900, 438)
+    self:renderIOTState("0eac42", "spin and blink", "on", 900, 498)
+
+    love.graphics.setColor( 1.0, 1.0, 1.0 )
+    love.graphics.setFont(headerFont)
+    love.graphics.printf("at hackerspace:", 50, 593, 300, 'left')
+    love.graphics.setFont(atFont)
+    users = {}
+    if self.state.at then
+      users = lume.map(self.state.at.users, function(v) return v.login end)
+      if self.state.at.unknown > 0 then
+        users[#users + 1] = string.format("%d unknown creatures", self.state.at.unknown)
+      end
+      if self.state.at.kektops > 0 then
+        users[#users + 1] = string.format("%d kektops", self.state.at.kektops)
+      end
+      if self.state.at.esps > 0 then
+        users[#users + 1] = string.format("%d ESPs", self.state.at.esps)
+      end
+    end
+
+    usersList = (table.concat(users, ', ') or 'nobody...')
+
+    love.graphics.printf(usersList, 350, 598, 900, 'left')
+  else
+    love.graphics.setColor(1.0, 1.0, 1.0, 0.5)
+    love.graphics.setFont(valueFont)
+    love.graphics.printf("Loading...", 0, 530, love.graphics.getWidth(), "center")
+  end
+
+  love.graphics.setColor( 1.0, 1.0, 1.0 )
+  love.graphics.setFont(timeFont)
+  love.graphics.printf(os.date("%H:%M"), 50, -10, 850, 'center')
+  love.graphics.setFont(dateFont)
+  love.graphics.printf(os.date("%Y\n%m/%d"), 960, 80, 270, 'center')
+
+end
+
+return node