From 535e238d52bbed59fc2b02d91033e9a40d78c3b8 Mon Sep 17 00:00:00 2001
From: Philipp Hoenisch <philipp@hoenisch.at>
Date: Thu, 14 Oct 2021 13:20:12 +1100
Subject: [PATCH] Add hard boundaries to take order request

If an order request is not in between min and max it will automatically be rejected.
---
 daemon/src/maker_cfd.rs | 15 +++++++++++++--
 daemon/src/model.rs     |  2 +-
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/daemon/src/maker_cfd.rs b/daemon/src/maker_cfd.rs
index 15f9860..54ef783 100644
--- a/daemon/src/maker_cfd.rs
+++ b/daemon/src/maker_cfd.rs
@@ -525,7 +525,18 @@ impl Actor {
             }
         };
 
-        // 2. Insert CFD in DB
+        // 2. check if order has acceptable amounts
+        if quantity < current_order.min_quantity || quantity > current_order.max_quantity {
+            self.takers
+                .do_send_async(maker_inc_connections::TakerMessage {
+                    taker_id,
+                    command: TakerCommand::NotifyOrderRejected { id: order_id },
+                })
+                .await?;
+            return Ok(());
+        }
+
+        // 3. Insert CFD in DB
         let cfd = Cfd::new(
             current_order.clone(),
             quantity,
@@ -541,7 +552,7 @@ impl Actor {
         self.cfd_feed_actor_inbox
             .send(load_all_cfds(&mut conn).await?)?;
 
-        // 3. Remove current order
+        // 4. Remove current order
         self.current_order_id = None;
         self.takers
             .do_send_async(maker_inc_connections::BroadcastOrder(None))
diff --git a/daemon/src/model.rs b/daemon/src/model.rs
index 2d62e2a..24d0f4d 100644
--- a/daemon/src/model.rs
+++ b/daemon/src/model.rs
@@ -13,7 +13,7 @@ use uuid::Uuid;
 
 pub mod cfd;
 
-#[derive(Debug, Copy, Clone, Serialize, Deserialize, PartialEq)]
+#[derive(Debug, Copy, Clone, Serialize, Deserialize, PartialEq, PartialOrd)]
 pub struct Usd(pub Decimal);
 
 impl Usd {