From 37d90f62b3f7815ae79675ed9450d3b886ba5abc Mon Sep 17 00:00:00 2001
From: Kuba Groblewski <kkgroblewski@gmail.com>
Date: Mon, 18 Nov 2024 00:47:06 +0100
Subject: [PATCH] fix: ndl always 0 in deco

---
 Cargo.lock                       |  2 +-
 Cargo.toml                       |  2 +-
 src/buehlmann/buehlmann_model.rs | 18 ++++++++++++++++++
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 1cb03d3..4042395 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -168,7 +168,7 @@ checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
 [[package]]
 name = "dive-deco"
-version = "4.3.4"
+version = "4.3.5"
 dependencies = [
  "criterion",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 62e288d..6697f0e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dive-deco"
-version = "4.3.4"
+version = "4.3.5"
 edition = "2021"
 license = "MIT"
 description = "A dive decompression models library (Buehlmann ZH-L 16C)"
diff --git a/src/buehlmann/buehlmann_model.rs b/src/buehlmann/buehlmann_model.rs
index 81fb709..2fab66f 100644
--- a/src/buehlmann/buehlmann_model.rs
+++ b/src/buehlmann/buehlmann_model.rs
@@ -117,6 +117,10 @@ impl DecoModel for BuehlmannModel {
     fn ndl(&self) -> Minutes {
         let mut ndl: Minutes = NDL_CUT_OFF_MINS;
 
+        if self.in_deco() {
+            return 0;
+        }
+
         // create a simulation model based on current model's state
         let mut sim_model = self.fork();
 
@@ -538,4 +542,18 @@ mod tests {
             "invalid config update results in Err"
         );
     }
+
+    #[test]
+    fn test_ndl_0_if_in_deco() {
+        let mut model = BuehlmannModel::new(
+            BuehlmannConfig::default()
+                .with_gradient_factors(30, 70)
+                .with_ceiling_type(CeilingType::Actual),
+        );
+        let air = Gas::air();
+        model.record(40., 6 * 60, &air);
+        model.record(9., 0, &air);
+        let ndl = model.ndl();
+        assert_eq!(ndl, 0);
+    }
 }