feat: v4.0 - multi-day horizontal canvas, duration input, overnight blocks, PDF horizontal layout

app/models/event.py

@@ -1,6 +1,7 @@
-"""Pydantic v2 models for Scenar Creator v3."""
+"""Pydantic v2 models for Scenar Creator v4."""
 
 import uuid
+from datetime import date as date_type, timedelta
 from typing import List, Optional
 
 from pydantic import BaseModel, Field
@@ -8,9 +9,9 @@ from pydantic import BaseModel, Field
 
 class Block(BaseModel):
     id: str = Field(default_factory=lambda: str(uuid.uuid4()))
-    date: str  # "YYYY-MM-DD"
-    start: str  # "HH:MM"
-    end: str  # "HH:MM"
+    date: str          # "YYYY-MM-DD"
+    start: str         # "HH:MM"  (can be > 24:00 for overnight continuation)
+    end: str           # "HH:MM"  (if end < start → overnight block)
     title: str
     type_id: str
     responsible: Optional[str] = None
@@ -20,13 +21,16 @@ class Block(BaseModel):
 class ProgramType(BaseModel):
     id: str
     name: str
-    color: str  # "#RRGGBB"
+    color: str         # "#RRGGBB"
 
 
 class EventInfo(BaseModel):
     title: str
     subtitle: Optional[str] = None
-    date: Optional[str] = None
+    # Multi-day: date_from → date_to (inclusive). Backward compat: date = date_from.
+    date: Optional[str] = None       # legacy / backward compat
+    date_from: Optional[str] = None
+    date_to: Optional[str] = None
     location: Optional[str] = None
 
 
@@ -35,3 +39,8 @@ class ScenarioDocument(BaseModel):
     event: EventInfo
     program_types: List[ProgramType]
     blocks: List[Block]
+
+    def get_sorted_dates(self) -> List[str]:
+        """Return sorted list of unique block dates."""
+        dates = sorted(set(b.date for b in self.blocks))
+        return dates