add generated christmas lights (#9)

Reviewed-on: #9

pyleds/lib/Config.py

@@ -1,4 +1,5 @@
 from dotenv import dotenv_values
+import pathlib
 
 
 def populate_values(load: {}):
@@ -26,9 +27,10 @@ class Config(object):
     _config: {} = {}
 
     def __init__(self):
+        rp = str(pathlib.Path(__file__).parent.parent.absolute())
         load_conf = {
-            **dotenv_values(".env.defaults"),
+            **dotenv_values(rp + "/.env.defaults"),
-            **dotenv_values(".env"),
+            **dotenv_values(rp + "/.env"),
         }
         self._config = populate_values(load_conf)
 

pyleds/program/promise/ChristmasLights.py

@@ -0,0 +1,38 @@
+from lib.Program import Program
+from rpi_ws281x import Color
+import time
+
+def name():
+    return 'Christmas Lights'
+
+class ChristmasLights(Program):
+    def run(self, args: [] = None):
+        # Configuration
+        wait_ms = 0  # Speed of the animation
+
+        # Define classic festive colors
+        RED = Color(255, 0, 0)
+        GREEN = Color(0, 255, 0)
+        WARM_WHITE = Color(200, 180, 60) # A golden-ish warm white
+
+        colors = [RED, GREEN, WARM_WHITE]
+
+        # This determines how many pixels of the same color are next to each other
+        group_size = 2
+
+        offset = 0
+        while self.get_loop().status():
+            num_pixels = self._lm.count_pixels()
+
+            for i in range(num_pixels):
+                # Calculate which color index to use based on pixel position and current offset
+                # This creates the "moving" effect
+                color_index = ((i + offset) // group_size) % len(colors)
+                self._lm.set_pixel_color(i, colors[color_index])
+
+            self._lm.show()
+
+            # Increment offset to move the lights
+            offset = (offset + 1) % (len(colors) * group_size)
+            self._lm.get_tempo().wait()
+            time.sleep(wait_ms / 1000.0)

pyleds/run.py

@@ -1,11 +1,12 @@
 #!/usr/bin/env python3
 import logging
+import pathlib
 import sys
-
 import lib.ProgramLoading as Pl
 from lib.Litsimaja import Litsimaja
 from flask import Flask, request, Response, render_template, json
 
+root_path = pathlib.Path(__file__).parent.absolute()
 # start litsimaja
 lm = Litsimaja()
 
@@ -13,7 +14,7 @@ lm = Litsimaja()
 logger = logging.getLogger('litsimaja')
 logger.setLevel(logging.DEBUG if lm.conf('IS_DEV') else logging.WARN)
 formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
-file_handler = logging.FileHandler('litsimaja.log')
+file_handler = logging.FileHandler(str(root_path) + '/litsimaja.log')
 file_handler.setFormatter(formatter)
 logger.addHandler(file_handler)
 stdout_handler = logging.StreamHandler(sys.stdout)