multidb support

config.py

@@ -1,5 +1,7 @@
 import os
 
+basedir = os.path.abspath(os.path.dirname(__file__))
+
 def _get_bool(name: str, default: bool) -> bool:
     val = os.environ.get(name)
     if val is None:
@@ -24,8 +26,8 @@ class Config:
       - ROBOTS_TAG
     """
 
-    # Baza danych
-    SQLALCHEMY_DATABASE_URI = _get_str("DATABASE_URL", "sqlite:///baza.db")
+
+    #SQLALCHEMY_DATABASE_URI = _get_str("DATABASE_URL", "sqlite:///baza.db")
 
     # Flask
     SECRET_KEY = _get_str("SECRET_KEY", "tajny_klucz")
@@ -48,4 +50,22 @@ class Config:
     # (opcjonalnie) wyłącz warningi track_modifications
     SQLALCHEMY_TRACK_MODIFICATIONS = False
 
-    HEALTHCHECK_TOKEN = _get_str("HEALTHCHECK_TOKEN", "healthcheck")
+    HEALTHCHECK_TOKEN = _get_str("HEALTHCHECK_TOKEN", "healthcheck")
+
+    # Baza danych
+    DB_ENGINE = os.environ.get("DB_ENGINE", "sqlite").lower()
+
+    if DB_ENGINE == "sqlite":
+        SQLALCHEMY_DATABASE_URI = f"sqlite:///{os.path.join(basedir, 'db', 'database.db')}"
+    elif DB_ENGINE == "pgsql":
+        SQLALCHEMY_DATABASE_URI = (
+            f"postgresql://{os.environ['DB_USER']}:{os.environ['DB_PASSWORD']}@"
+            f"{os.environ['DB_HOST']}:{os.environ.get('DB_PORT', 5432)}/{os.environ['DB_NAME']}"
+        )
+    elif DB_ENGINE == "mysql":
+        SQLALCHEMY_DATABASE_URI = (
+            f"mysql+pymysql://{os.environ['DB_USER']}:{os.environ['DB_PASSWORD']}@"
+            f"{os.environ['DB_HOST']}:{os.environ.get('DB_PORT', 3306)}/{os.environ['DB_NAME']}"
+        )
+    else:
+        raise ValueError("Nieobsługiwany typ bazy danych.")