From 603a6da4769984ac99c7e2acded69ac1de02ff28 Mon Sep 17 00:00:00 2001
From: Sebastien Ponce <sebastien.ponce@cern.ch>
Date: Tue, 20 Sep 2022 14:05:19 +0200
Subject: [PATCH] Added static access to nb cells and nb crates for
 calorimeters

---
 Detector/Calo/include/Detector/Calo/CaloCellID.h    |  5 +++++
 Detector/Calo/include/Detector/Calo/DeCalorimeter.h | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/Detector/Calo/include/Detector/Calo/CaloCellID.h b/Detector/Calo/include/Detector/Calo/CaloCellID.h
index ab81cdc152..a517a746fd 100644
--- a/Detector/Calo/include/Detector/Calo/CaloCellID.h
+++ b/Detector/Calo/include/Detector/Calo/CaloCellID.h
@@ -423,6 +423,11 @@ namespace LHCb::Detector::Calo {
       return DenseIndex::details::offsetAfter<
           DenseIndex::details::Constants<CellCode::Index::HcalCalo, DenseIndex::details::Area::PinArea>>();
     }
+    static constexpr int nbEcalCells() {
+      return DenseIndex::details::offsetAfter<
+          DenseIndex::details::Constants<CellCode::Index::EcalCalo, DenseIndex::details::Area::Inner>>();
+    }
+    static constexpr int nbHcalCells() { return max() - nbEcalCells(); }
   };
 
 } // namespace LHCb::Detector::Calo
diff --git a/Detector/Calo/include/Detector/Calo/DeCalorimeter.h b/Detector/Calo/include/Detector/Calo/DeCalorimeter.h
index c3afe37cd5..e8d4fa4ea8 100644
--- a/Detector/Calo/include/Detector/Calo/DeCalorimeter.h
+++ b/Detector/Calo/include/Detector/Calo/DeCalorimeter.h
@@ -208,6 +208,19 @@ namespace LHCb::Detector::Calo {
       return plane( this->access()->toLocalTransform( global ).Z() );
     }
 
+    // These crate numbers are the ones for Run3.
+    // Run 2 would have 21/22 instead of 13/14 and 25 instead of 17.
+    // due to this, no run2 data can be used with this
+    template <LHCb::Detector::Calo::CellCode::Index calo>
+    static inline constexpr unsigned int minCrate = ( calo == LHCb::Detector::Calo::CellCode::Index::EcalCalo ? 0
+                                                                                                              : 14 );
+    template <LHCb::Detector::Calo::CellCode::Index calo>
+    static inline constexpr unsigned int maxCrate = ( calo == LHCb::Detector::Calo::CellCode::Index::EcalCalo ? 13
+                                                                                                              : 17 );
+    template <LHCb::Detector::Calo::CellCode::Index calo>
+    static inline constexpr unsigned int nbCrates = ( calo == LHCb::Detector::Calo::CellCode::Index::EcalCalo ? 14
+                                                                                                              : 4 );
+
     // accessing the calibration parameters
     double maxEtInCenter( unsigned int reg = 0 ) const {
       return ( reg < this->access()->maxEtInCenter.size() ) ? this->access()->maxEtInCenter[reg]
-- 
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