fix: dynamically load theme from API endpoint (#2688)

* dynamically load theme from API endpoint

* add documentation

mealie/core/settings/settings.py

@@ -3,6 +3,8 @@ from pathlib import Path
 
 from pydantic import BaseSettings, NoneStr, validator
 
+from mealie.core.settings.themes import Theme
+
 from .db_providers import AbstractDBProvider, db_provider_factory
 
 
@@ -23,6 +25,8 @@ def determine_secrets(data_dir: Path, production: bool) -> str:
 
 
 class AppSettings(BaseSettings):
+    theme: Theme = Theme()
+
     PRODUCTION: bool
     BASE_URL: str = "http://localhost:8080"
     """trailing slashes are trimmed (ex. `http://localhost:8080/` becomes ``http://localhost:8080`)"""

mealie/core/settings/themes.py

@@ -0,0 +1,22 @@
+from pydantic import BaseSettings
+
+
+class Theme(BaseSettings):
+    light_primary: str = "#E58325"
+    light_accent: str = "#007A99"
+    light_secondary: str = "#973542"
+    light_success: str = "#43A047"
+    light_info: str = "#1976D2"
+    light_warning: str = "#FF6D00"
+    light_error: str = "#EF5350"
+
+    dark_primary: str = "#E58325"
+    dark_accent: str = "#007A99"
+    dark_secondary: str = "#973542"
+    dark_success: str = "#43A047"
+    dark_info: str = "#1976D2"
+    dark_warning: str = "#FF6D00"
+    dark_error: str = "#EF5350"
+
+    class Config:
+        env_prefix = "theme_"

mealie/routes/app/app_about.py

@@ -1,8 +1,8 @@
-from fastapi import APIRouter
+from fastapi import APIRouter, Response
 
 from mealie.core.config import get_app_settings
 from mealie.core.settings.static import APP_VERSION
-from mealie.schema.admin.about import AppInfo
+from mealie.schema.admin.about import AppInfo, AppTheme
 
 router = APIRouter(prefix="/about")
 
@@ -18,3 +18,12 @@ def get_app_info():
         production=settings.PRODUCTION,
         allow_signup=settings.ALLOW_SIGNUP,
     )
+
+
+@router.get("/theme", response_model=AppTheme)
+def get_app_theme(resp: Response):
+    """Get's the current theme settings"""
+    settings = get_app_settings()
+
+    resp.headers["Cache-Control"] = "public, max-age=604800"
+    return AppTheme(**settings.theme.dict())

mealie/schema/admin/about.py

@@ -16,6 +16,24 @@ class AppInfo(MealieModel):
     allow_signup: bool
 
 
+class AppTheme(MealieModel):
+    light_primary: str = "#E58325"
+    light_accent: str = "#007A99"
+    light_secondary: str = "#973542"
+    light_success: str = "#43A047"
+    light_info: str = "#1976D2"
+    light_warning: str = "#FF6D00"
+    light_error: str = "#EF5350"
+
+    dark_primary: str = "#E58325"
+    dark_accent: str = "#007A99"
+    dark_secondary: str = "#973542"
+    dark_success: str = "#43A047"
+    dark_info: str = "#1976D2"
+    dark_warning: str = "#FF6D00"
+    dark_error: str = "#EF5350"
+
+
 class AdminAboutInfo(AppInfo):
     versionLatest: str
     api_port: int