98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
from random import choices
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import sqlite3
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import config
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from custom_types import Character
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DB_PATH = config.DB_PATH
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CONNECTION: sqlite3.Connection
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CURSOR: sqlite3.Cursor
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def connect() -> None:
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'''Creates a connection to the database'''
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print('Connecting to the database...')
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global CONNECTION
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global CURSOR
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CONNECTION = sqlite3.connect(DB_PATH, autocommit=True)
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CONNECTION.row_factory = sqlite3.Row
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CURSOR = CONNECTION.cursor()
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def get_random_character() -> Character | None:
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''' Gets a random character from the database'''
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CURSOR.execute('SELECT * FROM characters')
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characters = CURSOR.fetchall()
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if not characters:
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return None
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weights = [config.RARITY_TO_WEIGHT[c['rarity']] for c in characters]
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chosen = choices(characters, weights=weights, k=1)[0]
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return {
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'id': chosen['id'],
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'name': chosen['name'],
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'rarity': chosen['rarity'],
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'weight': config.RARITY_TO_WEIGHT[chosen['rarity']],
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'image_url': chosen['file_id']
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}
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def get_or_create_user(username: str) -> int:
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'''Retrieves an ID for a given user, if the user does not exist, it will be
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created.'''
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CURSOR.execute('SELECT id FROM users WHERE username = ?', (username,))
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user = CURSOR.fetchone()
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if user:
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return int(user[0])
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# New user starts with has_rolled = False
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CURSOR.execute(
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'INSERT INTO users (username, has_rolled) VALUES (?, ?)',
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(username, False)
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)
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user_id = CURSOR.lastrowid
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return user_id if user_id else 0
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def insert_character(
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name: str, rarity: int, weight: float, file_id: str) -> int:
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'''Inserts a character'''
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CURSOR.execute(
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'INSERT INTO characters (name, rarity, weight, file_id) VALUES \
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(?, ?, ?, ?)',
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(name, rarity, weight, file_id)
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)
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character_id = CURSOR.lastrowid
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return character_id if character_id else 0
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def insert_pull(user_id: int, character_id: int) -> None:
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'''Creates a pull in the database'''
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CURSOR.execute(
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'INSERT INTO pulls (user_id, character_id) VALUES (?, ?)',
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(user_id, character_id)
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)
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def get_last_rolled_at(user_id: int) -> int:
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'''Gets the timestamp when the user last rolled'''
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CURSOR.execute(
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"SELECT timestamp FROM pulls WHERE user_id = ? ORDER BY timestamp \
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DESC",
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(user_id,))
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row = CURSOR.fetchone()
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return row[0] if row else 0
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def get_config(key: str) -> str:
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'''Reads the value for a specified config key from the db'''
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CURSOR.execute("SELECT value FROM config WHERE key = ?", (key,))
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row = CURSOR.fetchone()
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return row[0] if row else ''
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def set_config(key: str, value: str) -> None:
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'''Writes the value for a specified config key to the db'''
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CURSOR.execute("INSERT OR REPLACE INTO config (key, value) VALUES (?, ?)",
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(key, value))
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