feat: metadata

app/server.py

@@ -6,6 +6,7 @@ import flask_limiter
 import flask_limiter.util
 import gunicorn.app.base
 import tortoise
+from tortoise.functions import Count
 
 from app import PKG_NAME
 from app.lang import get_lang
@@ -56,6 +57,18 @@ class Server(gunicorn.app.base.BaseApplication):
                 lang=lambda key: get_lang(locale, key),
             )
 
+        @self.app.route("/api/meta", methods=["GET"])
+        async def metadata() -> dict:
+            return {
+                "tasks": await Task.all().count(),
+                "lists": (
+                    await Task.all()
+                    .annotate(count=Count("list_name", distinct=True))
+                    .first()
+                    .values("count")
+                )["count"],
+            }
+
         @self.app.route("/api/lists/<list_name>/tasks", methods=["GET"])
         async def get_tasks(list_name: str) -> list:
             return await Task.filter(list_name=list_name[:128]).values()