refactor: smartrte b30 csv exporter

src/arcaea_offline/external/exporters/smartrte.py

@@ -0,0 +1,75 @@
+from typing import List, Tuple
+
+from sqlalchemy import func
+from sqlalchemy.orm import Session
+
+from arcaea_offline.constants.enums.arcaea import ArcaeaRatingClass
+from arcaea_offline.database.models.v5 import (
+    ChartInfo,
+    Difficulty,
+    PlayResultBest,
+    Song,
+)
+from arcaea_offline.utils.formatters.rating_class import RatingClassFormatter
+
+
+class SmartRteBest30CsvExporter:
+    CSV_ROWS = [
+        "SongName",
+        "SongId",
+        "Difficulty",
+        "Score",
+        "Perfect",
+        "Perfect+",
+        "Far",
+        "Lost",
+        "Constant",
+        "PlayRating",
+    ]
+
+    @classmethod
+    def rows(cls, session: Session) -> List:
+        results: List[
+            Tuple[str, str, ArcaeaRatingClass, int, int, int, int, int, float]
+        ] = (
+            session.query(
+                func.coalesce(Difficulty.title, Song.title),
+                PlayResultBest.song_id,
+                PlayResultBest.rating_class,
+                PlayResultBest.score,
+                PlayResultBest.pure,
+                PlayResultBest.shiny_pure,
+                PlayResultBest.far,
+                PlayResultBest.lost,
+                ChartInfo.constant,
+                PlayResultBest.potential,
+            )
+            .join(
+                ChartInfo,
+                (ChartInfo.song_id == PlayResultBest.song_id)
+                & (ChartInfo.rating_class == PlayResultBest.rating_class),
+            )
+            .join(Song, (Song.id == PlayResultBest.song_id))
+            .join(
+                Difficulty,
+                (Difficulty.song_id == PlayResultBest.song_id)
+                & (Difficulty.rating_class == PlayResultBest.rating_class),
+            )
+            .all()
+        )
+
+        csv_rows = []
+        csv_rows.append(cls.CSV_ROWS.copy())
+        for _result in results:
+            result = list(_result)
+
+            # replace the comma in song title because the target project
+            # cannot handle quoted string
+            result[0] = result[0].replace(",", "")  # type: ignore
+            result[2] = RatingClassFormatter.name(result[2])  # type: ignore
+            result[-2] = result[-2] / 10  # type: ignore
+            result[-1] = round(result[-1], 5)  # type: ignore
+
+            csv_rows.append(result)
+
+        return csv_rows