1 files changed, 39 insertions, 0 deletions
diff --git a/config.py b/config.py
new file mode 100644
index 0000000..990a2c3
--- /dev/null
+++ b/config.py
@@ -0,0 +1,39 @@
+# config.py
+from datetime import timedelta
+from dateutil.relativedelta import relativedelta
+
+class EventConfig:
+    """Configuration constants for the application"""
+    
+    # Event type keywords
+    KEYWORDS = ["EZ 100%", "EZ 50%", "EZ pauschal", "Sonstige"]
+    
+    # Event type durations
+    EZ_PAUSCHAL_DURATION_YEARS = 2
+    EZ_PAUSCHAL_DURATION_DAYS_OFFSET = -1  # End date is start + 2 years - 1 day
+    
+    # Prediction limits
+    MAX_PREDICTION_YEARS = 6
+    
+    # UI Configuration
+    DATE_FORMAT = "dd.MM.yyyy"
+    DATE_FORMAT_ISO = "yyyy-MM-dd"
+    
+    # File Configuration
+    DEFAULT_FILE_EXTENSION = ".json"
+    FILE_FILTER = "JSON Files (*.json)"
+    
+    @classmethod
+    def get_ez_pauschal_duration(cls):
+        """Get the duration for EZ pauschal events"""
+        return relativedelta(years=cls.EZ_PAUSCHAL_DURATION_YEARS, days=cls.EZ_PAUSCHAL_DURATION_DAYS_OFFSET)
+    
+    @classmethod
+    def get_max_prediction_duration(cls):
+        """Get the maximum prediction duration"""
+        return relativedelta(years=cls.MAX_PREDICTION_YEARS)
+    
+    @classmethod
+    def is_valid_keyword(cls, keyword):
+        """Check if a keyword is valid"""
+        return keyword in cls.KEYWORDS