Implemented Task Manager

app.py

@@ -28,6 +28,14 @@ with open("./config.json", "r", encoding="utf-8") as file:
     db = mongo.db
 
 
+def partition(predicate, iterable):
+    trues = []
+    falses = []
+    for item in iterable:
+        (trues if predicate(item) else falses).append(item)
+    return falses, trues
+
+
 @app.context_processor
 def inject_data():
     ddata = db.domains.find_one({"id": request.endpoint})
@@ -190,3 +198,57 @@ def database_edit(collection, oid):
         name=name,
         document=document,
     )
+
+
+@app.route("/tasks", methods=["GET", "POST"])
+def tasks():
+    print(request.form, request.method)
+    if request.method == "POST":
+        act = request.form.get("action", "save")
+        match act:
+            case "save":
+                oid = request.form.get("oid")
+                if oid:
+                    db.tasks.update_one(
+                        {"_id": ObjectId(oid)},
+                        {
+                            "$set": {
+                                "id": request.form.get("tid") or "000",
+                                "txt": request.form.get("content", ""),
+                                "pre": request.form.get("pre", "").split(),
+                            }
+                        },
+                    )
+                else:
+                    db.tasks.insert_one(
+                        {
+                            "id": request.form.get("tid") or "000",
+                            "txt": request.form.get("content", ""),
+                            "pre": request.form.get("pre", "").split(),
+                            "done": False,
+                        }
+                    )
+            case "delete":
+                oid = request.form.get("oid")
+                db.tasks.delete_one({"_id": ObjectId(oid)})
+            case "mark":
+                oid = request.form.get("oid")
+                db.tasks.update_one(
+                    {"_id": ObjectId(oid)},
+                    {"$set": {"done": request.form.get("done") == "False"}},
+                )
+    tasks = sorted(db.tasks.find(), key=lambda task: task["id"])
+    other_tasks, complete_tasks = partition(lambda task: task["done"], tasks)
+    active_tasks, blocked_tasks = partition(
+        lambda task: any(
+            any(not ot["done"] for ot in tasks if ot["id"] == pre)
+            for pre in task["pre"]
+        ),
+        other_tasks,
+    )
+    return render_template(
+        "tasks.html",
+        active_tasks=active_tasks,
+        blocked_tasks=blocked_tasks,
+        complete_tasks=complete_tasks,
+    )