finalize thumbnail validators

- add logger colors

server/app/logger.py

@@ -1,8 +1,53 @@
+import logging
+
 from app.settings import logger
 
 
-class Log:
+class CustomFormatter(logging.Formatter):
 
-    def __init__(self, msg):
-        if logger.enable:
-            print("\n🦋 " + msg + "\n")
+    grey = "\x1b[38;20m"
+    yellow = "\x1b[33;20m"
+    red = "\x1b[31;20m"
+    bold_red = "\x1b[31;1m"
+    reset = "\x1b[0m"
+    # format = (
+    #     "%(asctime)s - %(name)s - %(levelname)s - %(message)s (%(filename)s:%(lineno)d)"
+    # )
+    format = "%(levelname)s: @%(name)s: >>> %(message)s (%(filename)s:%(lineno)d)"
+
+    FORMATS = {
+        logging.DEBUG: grey + format + reset,
+        logging.INFO: grey + format + reset,
+        logging.WARNING: yellow + format + reset,
+        logging.ERROR: red + format + reset,
+        logging.CRITICAL: bold_red + format + reset,
+    }
+
+    def format(self, record):
+        log_fmt = self.FORMATS.get(record.levelno)
+        formatter = logging.Formatter(log_fmt)
+        return formatter.format(record)
+
+
+logg = logging.getLogger("ALICE_MUSIC_SERVER")
+logg.setLevel(logging.DEBUG)
+
+# create console handler with a higher log level
+ch = logging.StreamHandler()
+ch.setLevel(logging.DEBUG)
+
+ch.setFormatter(CustomFormatter())
+
+logg.addHandler(ch)
+
+
+def get_logger():
+    if logger.enable:
+        return logg
+
+    return None
+
+
+logg = get_logger()
+
+# copied from: https://stackoverflow.com/a/56944256: