Move server code to this repo (#95)

move server code to this repo

app/db/sqlite/__init__.py

@@ -0,0 +1,47 @@
+"""
+This module contains the functions to interact with the SQLite database.
+"""
+
+import sqlite3
+from pathlib import Path
+from sqlite3 import Connection as SqlConn
+
+from app.settings import APP_DB_PATH
+
+
+def create_connection(db_file: str) -> SqlConn:
+    """
+    Creates a connection to the specified database.
+    """
+    conn = sqlite3.connect(db_file)
+    return conn
+
+
+def get_sqlite_conn():
+    """
+    It opens a connection to the database
+    :return: A connection to the database.
+    """
+    return create_connection(APP_DB_PATH)
+
+
+def create_tables(conn: SqlConn, sql_query: str):
+    """
+    Executes the specifiend SQL file to create database tables.
+    """
+    # with open(sql_query, "r", encoding="utf-8") as sql_file:
+    conn.executescript(sql_query)
+
+
+def setup_search_db():
+    """
+    Creates the search database.
+    """
+    db = sqlite3.connect(":memory:")
+    sql_file = "queries/fts5.sql"
+
+    current_path = Path(__file__).parent.resolve()
+    sql_path = current_path.joinpath(sql_file)
+
+    with open(sql_path, "r", encoding="utf-8") as sql_file:
+        db.executescript(sql_file.read())