added segments

FitnessSync/backend/src/models/segment_effort.py

@@ -0,0 +1,26 @@
+from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+from ..models import Base
+
+class SegmentEffort(Base):
+    __tablename__ = "segment_efforts"
+
+    id = Column(Integer, primary_key=True, index=True)
+    segment_id = Column(Integer, ForeignKey("segments.id"), nullable=False)
+    activity_id = Column(Integer, ForeignKey("activities.id"), nullable=False)
+    
+    elapsed_time = Column(Integer, nullable=False)  # seconds
+    start_time = Column(DateTime, nullable=False) # Absolute start time of the effort
+    end_time = Column(DateTime, nullable=False)
+    
+    avg_power = Column(Integer, nullable=True)
+    avg_hr = Column(Integer, nullable=True)
+    
+    # Potential for ranking (1 = KOM/PR, etc.) - calculated dynamically or stored
+    kom_rank = Column(Integer, nullable=True) 
+    
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+    segment = relationship("Segment")
+    activity = relationship("Activity")