Initial commit: Info-Beamer Streaming Channel System

- Complete Flask web application for digital signage management
- Streaming channels for organized content delivery
- User authentication with admin/user roles
- Bootstrap UI with light/dark theme support
- File upload and management system
- Activity logging and monitoring
- API endpoints for Info-Beamer device integration
- Database models for channels, content, users, and activity logs

node.lua

@@ -0,0 +1,105 @@
+-- Info-Beamer script with scheduling support
+gl.setup(NATIVE_WIDTH, NATIVE_HEIGHT)
+
+local json = require "json"
+local font = resource.load_font "roboto.ttf"
+
+local server_url = CONFIG.server_url or "http://localhost:5000"
+local refresh_interval = CONFIG.refresh_interval or 60
+local default_duration = CONFIG.default_duration or 10
+
+local playlist = {}
+local current_item = 1
+local item_start_time = 0
+local last_update = 0
+local schedule_info = {}
+
+function update_playlist()
+    -- Fetch scheduled playlist from server
+    local url = server_url .. "/api/playlist"
+    util.post_and_wait(url, "", function(response)
+        if response.success then
+            local data = json.decode(response.content)
+            if data and data.items then
+                playlist = data.items
+                print("Updated playlist: " .. #playlist .. " items")
+                
+                -- Load assets
+                for i, item in ipairs(playlist) do
+                    if item.type == "image" then
+                        item.resource = resource.load_image(server_url .. "/uploads/" .. item.asset)
+                    elseif item.type == "video" then
+                        item.resource = resource.load_video(server_url .. "/uploads/" .. item.asset)
+                    end
+                end
+            end
+        end
+    end)
+    
+    -- Also fetch schedule information
+    local schedule_url = server_url .. "/api/schedule"
+    util.post_and_wait(schedule_url, "", function(response)
+        if response.success then
+            schedule_info = json.decode(response.content) or {}
+        end
+    end)
+    
+    last_update = sys.now()
+end
+
+function node.render()
+    -- Update playlist periodically
+    if sys.now() - last_update > refresh_interval then
+        update_playlist()
+    end
+    
+    -- If no playlist items, show waiting message
+    if #playlist == 0 then
+        font:write(100, 100, "Waiting for scheduled content...", 50, 1, 1, 1, 1)
+        font:write(100, 200, "Server: " .. server_url, 30, 0.7, 0.7, 0.7, 1)
+        return
+    end
+    
+    local item = playlist[current_item]
+    if not item then
+        current_item = 1
+        item = playlist[current_item]
+        if not item then return end
+    end
+    
+    local duration = item.duration or default_duration
+    
+    -- Check if it's time to move to next item
+    if sys.now() - item_start_time > duration then
+        current_item = current_item + 1
+        if current_item > #playlist then
+            current_item = 1
+        end
+        item_start_time = sys.now()
+        item = playlist[current_item]
+    end
+    
+    -- Display current item
+    if item and item.resource then
+        if item.type == "image" then
+            item.resource:draw(0, 0, WIDTH, HEIGHT)
+        elseif item.type == "video" then
+            item.resource:draw(0, 0, WIDTH, HEIGHT)
+        end
+        
+        -- Show schedule info overlay (optional)
+        if item.schedule_name then
+            font:write(10, HEIGHT - 60, "Schedule: " .. item.schedule_name, 20, 1, 1, 1, 0.8)
+            if item.priority then
+                font:write(10, HEIGHT - 30, "Priority: " .. item.priority, 20, 1, 1, 1, 0.8)
+            end
+        end
+    end
+    
+    -- Show current time
+    local current_time = schedule_info.current_time or "00:00"
+    font:write(WIDTH - 100, 20, current_time, 24, 1, 1, 1, 0.9)
+end
+
+-- Initial load
+update_playlist()