From 5ea43bc908144e5822e146d41e1fef5c6df9f27e Mon Sep 17 00:00:00 2001
From: Torrie Fischer <torrie@ripple.com>
Date: Mon, 11 Dec 2023 07:58:33 +0100
Subject: [PATCH] inputs: bpm: add commands for setting BPM

---
 src/inputs/BPM.cpp | 17 +++++++++++++++++
 src/inputs/BPM.h   |  7 +++++++
 2 files changed, 24 insertions(+)

diff --git a/src/inputs/BPM.cpp b/src/inputs/BPM.cpp
index c92ed1c..e11d2c8 100644
--- a/src/inputs/BPM.cpp
+++ b/src/inputs/BPM.cpp
@@ -1,5 +1,22 @@
 #include "./BPM.h"
 #include "../Static.h"
 
+void
+doBPM(Args& args, Print& out)
+{
+  uint8_t newBPM(atoi(args[1].c_str()));
+  Static<BPM>::instance()->setBPM(newBPM);
+}
+
+const std::vector<Command> _commands = {
+  {"bpm", doBPM}
+};
+
+const std::vector<Command>&
+BPM::commands() const
+{
+  return _commands;
+}
+
 STATIC_ALLOC(BPM);
 STATIC_TASK(BPM);
diff --git a/src/inputs/BPM.h b/src/inputs/BPM.h
index 464d4ec..e15b1c0 100644
--- a/src/inputs/BPM.h
+++ b/src/inputs/BPM.h
@@ -18,6 +18,8 @@ public:
       ConfigTaskMixin::handleEvent(evt);
   }
 
+  const std::vector<Command>& commands() const override;
+
   void loop() {
       InputSource::loop();
       ConfigTaskMixin::loop();
@@ -29,6 +31,11 @@ public:
     Log.notice("bpm: idle BPM set to %d (requested %d)", (int)msToBPM(m_msPerBeat), (int)requestedBPM);
   }
 
+  void setBPM(double bpm) {
+    m_msPerBeat = 60000.0 / (double)bpm;
+    Log.notice("bpm: Command changed to %d (requested %d)", (int)msToBPM(m_msPerBeat), (int)bpm);
+  }
+
   InputEvent read() override {
     if (m_msPerBeat > 0) {
       uint16_t now = millis();