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refactor: database.py

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283375 2023-08-26 01:35:00 +08:00
parent b23bd2652a
commit 4a3523d380
Signed by: 283375
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src/arcaea_offline/database.py
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@ -1,345 +1,22 @@
import atexit from sqlalchemy import Engine
import os from sqlalchemy.orm import Session
import sqlite3
from dataclasses import fields, is_dataclass
from functools import wraps
from typing import Callable, List, NamedTuple, Optional, TypeVar, Union
from thefuzz import fuzz from .models.common import *
from thefuzz import process as fuzz_process from .models.scores import *
from .models.songs import *
from .external import ExternalScoreItem
from .init_sqls import INIT_SQLS
from .models import (
DbAliasRow,
DbCalculatedRow,
DbChartRow,
DbPackageRow,
DbScoreRow,
ScoreInsert,
)
from .utils.singleton import Singleton
from .utils.types import TDataclass
TC = TypeVar("TC", bound=Callable)
TD = TypeVar("TD", bound=TDataclass)
class Database(metaclass=Singleton): def init(engine: Engine, checkfirst: bool = True):
dbDir = os.getcwd() # sqlalchemy-utils issue #396
dbFilename = "arcaea_offline.db" # view.create_view() causes DuplicateTableError on Base.metadata.create_all(checkfirst=True)
# https://github.com/kvesteri/sqlalchemy-utils/issues/396
if checkfirst:
ScoresViewBase.metadata.drop_all(engine)
def __init__(self): SongsBase.metadata.create_all(engine, checkfirst=checkfirst)
self.__conn: sqlite3.Connection = None # type: ignore ScoresBase.metadata.create_all(engine, checkfirst=checkfirst)
self.renew_conn() ScoresViewBase.metadata.create_all(engine)
CommonBase.metadata.create_all(engine, checkfirst=checkfirst)
self.__update_hooks = [] with Session(engine) as session:
session.add(Property(id="version", value="2"))
@property session.commit()
def conn(self):
return self.__conn
def renew_conn(self):
if self.__conn:
atexit.unregister(self.__conn.close)
self.__conn = sqlite3.connect(os.path.join(self.dbDir, self.dbFilename))
self.__conn.execute("PRAGMA journal_mode = WAL;")
self.__conn.execute("PRAGMA foreign_keys = ON;")
atexit.register(self.__conn.close)
def _check_conn(self):
if not isinstance(self.__conn, sqlite3.Connection):
raise ValueError("Database not connected")
def check_conn(func: TC) -> TC: # type: ignore
@wraps(func)
def wrapper(self, *args, **kwargs):
self._check_conn()
return func(self, *args, **kwargs)
return wrapper # type: ignore
def register_update_hook(self, hook: Callable) -> bool:
if callable(hook):
if hook not in self.__update_hooks:
self.__update_hooks.append(hook)
return True
return False
def unregister_update_hook(self, hook: Callable) -> bool:
if hook in self.__update_hooks:
self.__update_hooks.remove(hook)
return True
return False
def __trigger_update_hooks(self):
for hook in self.__update_hooks:
hook()
@check_conn
def update_arcsong_db(self, path: Union[str, bytes]):
with sqlite3.connect(path) as arcsong_conn:
arcsong_cursor = arcsong_conn.cursor()
data = {
"charts": arcsong_cursor.execute(
"SELECT song_id, rating_class, name_en, name_jp, artist, bpm, bpm_base, [set], time, side, world_unlock, remote_download, bg, date, version, difficulty, rating, note, chart_designer, jacket_designer, jacket_override, audio_override FROM charts"
).fetchall(),
"aliases": arcsong_cursor.execute(
"SELECT sid, alias FROM alias"
).fetchall(),
"packages": arcsong_cursor.execute(
"SELECT id, name FROM packages"
).fetchall(),
}
with self.conn as conn:
cursor = conn.cursor()
for table, rows in data.items():
columns = [
row[0]
for row in cursor.execute(
f"SELECT * FROM {table} LIMIT 1"
).description
]
column_count = len(columns)
assert column_count == len(
rows[0]
), f"Incompatible column count for table '{table}'"
placeholders = ", ".join(["?" for _ in range(column_count)])
update_clauses = ", ".join(
[f"{column} = excluded.{column}" for column in columns]
)
cursor.executemany(
f"INSERT INTO {table} ({', '.join(columns)}) VALUES ({placeholders}) ON CONFLICT DO UPDATE SET {update_clauses}",
rows,
)
conn.commit()
self.__trigger_update_hooks()
@check_conn
def import_external(self, external_scores: List[ExternalScoreItem]):
for external in external_scores:
# 2017 Jan. 22, 00:00, UTC+8
time = external.time if external.time > -1 else 1485014400
pure = external.pure if external.pure > -1 else None
far = external.far if external.far > -1 else None
lost = external.lost if external.lost > -1 else None
max_recall = external.max_recall if external.max_recall > -1 else None
clear_type = external.clear_type if external.clear_type > -1 else None
score = ScoreInsert(
song_id=external.song_id,
rating_class=external.rating_class,
score=external.score,
time=time,
pure=pure,
far=far,
lost=lost,
max_recall=max_recall,
clear_type=clear_type,
)
self.insert_score(score)
@check_conn
def init(self):
create_sqls = INIT_SQLS[1]["init"]
with self.conn as conn:
cursor = conn.cursor()
for sql in create_sqls:
cursor.execute(sql)
conn.commit()
def __get_columns_from_dataclass(self, dataclass) -> List[str]:
if is_dataclass(dataclass):
dc_fields = fields(dataclass)
return [field.name for field in dc_fields]
return []
def __get_columns_clause(self, columns: List[str]):
return ", ".join([f'"{column}"' for column in columns])
@check_conn
def __get_table(
self, table_name: str, datacls: TD, where_clause: str = "", params=None
) -> List[TD]:
if params is None:
params = []
columns_clause = self.__get_columns_clause(
self.__get_columns_from_dataclass(datacls)
)
sql = f"SELECT {columns_clause} FROM {table_name}"
if where_clause:
sql += " WHERE "
sql += where_clause
with self.conn as conn:
cursor = conn.cursor()
cursor.execute(sql, params)
return [datacls(*row) for row in cursor.fetchall()]
def get_packages(self):
return self.__get_table("packages", DbPackageRow)
def get_package_by_package_id(self, package_id: str):
result = self.__get_table(
"packages", DbPackageRow, "package_id = ?", (package_id,)
)
return result[0] if result else None
def get_aliases(self):
return self.__get_table("aliases", DbAliasRow)
def get_aliases_by_song_id(self, song_id: str):
return self.__get_table("aliases", DbAliasRow, "song_id = ?", (song_id,))
def get_charts(self):
return self.__get_table("charts", DbChartRow)
def get_charts_by_song_id(self, song_id: str):
return self.__get_table("charts", DbChartRow, "song_id = ?", (song_id,))
def get_charts_by_package_id(self, package_id: str):
return self.__get_table("charts", DbChartRow, "package_id = ?", (package_id,))
def get_chart(self, song_id: str, rating_class: int):
return self.__get_table(
"charts",
DbChartRow,
"song_id = ? AND rating_class = ?",
(song_id, rating_class),
)[0]
@check_conn
def validate_song_id(self, song_id):
with self.conn as conn:
cursor = conn.cursor()
cursor.execute("SELECT COUNT(*) FROM charts WHERE song_id = ?", (song_id,))
result = cursor.fetchone()
return result[0] > 0
@check_conn
def validate_chart(self, song_id: str, rating_class: int):
with self.conn as conn:
cursor = conn.cursor()
cursor.execute(
"SELECT COUNT(*) FROM charts WHERE song_id = ? AND rating_class = ?",
(song_id, rating_class),
)
result = cursor.fetchone()
return result[0] > 0
class FuzzySearchSongIdResult(NamedTuple):
song_id: str
confidence: int
@check_conn
def fuzzy_search_song_id(
self, input_str: str, limit: int = 5
) -> List[FuzzySearchSongIdResult]:
with self.conn as conn:
cursor = conn.cursor()
db_results = cursor.execute(
"SELECT song_id, name FROM song_id_names"
).fetchall()
name_song_id_map = {r[1]: r[0] for r in db_results}
names = name_song_id_map.keys()
fuzzy_results = fuzz_process.extractBests(input_str, names, scorer=fuzz.partial_ratio, limit=limit) # type: ignore
results = {}
for fuzzy_result in fuzzy_results:
name = fuzzy_result[0]
confidence = fuzzy_result[1]
song_id = name_song_id_map[name]
results[song_id] = max(confidence, results.get(song_id, 0))
return [
self.FuzzySearchSongIdResult(si, confi) for si, confi in results.items()
]
def get_scores(
self,
*,
score_id: Optional[int] = None,
song_id: Optional[List[str]] = None,
rating_class: Optional[List[int]] = None,
):
where_clauses = []
params = []
if score_id:
where_clauses.append("id = ?")
params.append(score_id)
if song_id:
where_clauses.append(f"song_id IN ({','.join('?'*len(song_id))})")
params.extend(song_id)
if rating_class:
where_clauses.append(f"rating_class IN ({','.join('?'*len(rating_class))})")
params.extend(rating_class)
return self.__get_table(
"scores", DbScoreRow, " AND ".join(where_clauses), params
)
def get_calculated(
self,
*,
song_id: Optional[List[str]] = None,
rating_class: Optional[List[int]] = None,
):
where_clauses = []
params = []
if song_id:
where_clauses.append(f"song_id IN ({','.join('?'*len(song_id))})")
params.extend(song_id)
if rating_class:
where_clauses.append(f"rating_class IN ({','.join('?'*len(rating_class))})")
params.extend(rating_class)
return self.__get_table(
"calculated", DbCalculatedRow, " AND ".join(where_clauses), params
)
@check_conn
def get_b30(self) -> float:
with self.conn as conn:
cursor = conn.cursor()
return cursor.execute("SELECT b30 FROM calculated_potential").fetchone()[0]
def insert_score(self, score: ScoreInsert):
columns = self.__get_columns_from_dataclass(ScoreInsert)
columns_clause = self.__get_columns_clause(columns)
params = [getattr(score, column) for column in columns]
with self.conn as conn:
cursor = conn.cursor()
cursor.execute(
f"INSERT INTO scores({columns_clause}) VALUES ({', '.join('?' * len(params))})",
params,
)
conn.commit()
self.__trigger_update_hooks()
@check_conn
def update_score(self, score_id: int, new_score: ScoreInsert):
# ensure we are only updating 1 row
scores = self.get_scores(score_id=score_id)
print(score_id)
assert len(scores) == 1, "Cannot update multiple or non-existing score(s)"
columns = self.__get_columns_from_dataclass(ScoreInsert)
params = [getattr(new_score, column) for column in columns] + [score_id]
update_columns_param_clause = ", ".join([f"{column} = ?" for column in columns])
with self.conn as conn:
cursor = conn.cursor()
cursor.execute(
f"UPDATE scores SET {update_columns_param_clause} WHERE id = ?",
params,
)
conn.commit()
self.__trigger_update_hooks()
@check_conn
def delete_score(self, score_id: int):
with self.conn as conn:
cursor = conn.cursor()
cursor.execute("DELETE FROM scores WHERE id = ?", (score_id,))
conn.commit()
self.__trigger_update_hooks()