refactor(data): restructure TimeSeriesTickerData to use series list and add helper methods

paperone/data.py

@@ -1,4 +1,4 @@
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from datetime import datetime
 from typing import List
 
@@ -11,15 +11,46 @@ class TickerData:
     low: float
     high: float
     avg: float
-    volume: float
+    volume: int
 
 
 @dataclass
 class TimeSeriesTickerData:
     ticker: str
-    target_date: datetime
+    series: List[TickerData] = field(default_factory=list)
-    current_day_data: TickerData
+
-    past_30d_data: List[TickerData]
+    @staticmethod
+    def build_time_series_ticker_data(
+        ticker: str, all_data: List[TickerData]
+    ):
+        ordered = sorted({d.date: d for d in all_data}.values(), key=lambda d: d.date)
+
+        return TimeSeriesTickerData(
+            ticker=ticker,
+            series=ordered,
+        )
+
+    def get_by_date(self, dt: datetime) -> TickerData | None:
+        for d in self.series:
+            if d.date == dt:
+                return d
+
+        return None
+
+    def get_latest(self) -> TickerData | None:
+        if not self.series:
+            return None
+
+        return self.series[-1]
+
+    def get_range(self, start_date: datetime, end_date: datetime) -> List[TickerData]:
+        return [d for d in self.series if start_date <= d.date <= end_date]
+
+    @property
+    def target_date_data(self) -> TickerData | None:
+        """Return the most recent TickerData (by convention, the target date tick)."""
+        return self.get_latest()
+
 
 
 @dataclass