add settings flask endpoints

api/app.py

@@ -126,6 +126,53 @@ def update_visit_route(visit_id: int):
                           cost=cost, location=location, time=time)
     return jsonify(result)
 
+# ----------------------------- Settings -----------------------------
+@app.route("/settings", methods=["GET", "POST"])
+def settings_collection():
+    """Handle collection of settings.
+
+    * GET: Return all settings.
+    * POST: Add or replace a setting. Expects JSON with ``name`` and ``value``.
+    """
+    if request.method == "GET":
+        # Return all settings
+        return jsonify(view_settings())
+
+    if request.method == "POST":
+        data = request.get_json()
+        if not data:
+            return jsonify({"error": "Missing JSON body"}), 400
+        name = data.get("name")
+        value = data.get("value")
+        if not name or value is None:
+            return jsonify({"error": "name and value required"}), 400
+        result = add_setting(name, value)
+        return jsonify(result), 201
+
+
+@app.route("/settings/<string:name>", methods=["GET", "PUT"])
+def setting_detail(name: str):
+    """Retrieve or update a single setting.
+
+    * GET: Return the setting with the given name.
+    * PUT: Update the setting value. Expects JSON with ``value``.
+    """
+    if request.method == "GET":
+        rows = view_settings([name])
+        if not rows:
+            return jsonify({"error": "Setting not found"}), 404
+        return jsonify(rows[0])
+
+    if request.method == "PUT":
+        data = request.get_json()
+        if not data:
+            return jsonify({"error": "Missing JSON body"}), 400
+        value = data.get("value")
+        if value is None:
+            return jsonify({"error": "value required"}), 400
+        result = change_setting(name, value)
+        return jsonify(result)
+
 # Run the app if this file is executed directly
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=5000, debug=False)