From e8b957a4dced07ba04bb0e3749e6ce2acb651a4e Mon Sep 17 00:00:00 2001
From: Colin <colin@uninsane.org>
Date: Sat, 21 Sep 2024 12:24:25 +0000
Subject: [PATCH] megapixels-next: make it the default camera

---
 hosts/common/programs/megapixels-next.nix                   | 6 +++++-
 hosts/common/programs/megapixels.nix                        | 4 ++++
 hosts/common/programs/sane-input-handler/sane-input-handler | 3 ++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/hosts/common/programs/megapixels-next.nix b/hosts/common/programs/megapixels-next.nix
index 652c9c0e8..e81d45295 100644
--- a/hosts/common/programs/megapixels-next.nix
+++ b/hosts/common/programs/megapixels-next.nix
@@ -17,8 +17,12 @@
       postInstall = (base.postInstall or "") + ''
         mv $out/bin/megapixels $out/bin/megapixels-next
 
-        rm $out/share/applications/me.gapixels.Megapixels.desktop
+        substituteInPlace $out/share/applications/me.gapixels.Megapixels.desktop \
+          --replace-fail "megapixels" "megapixels-next" \
+          --replace-fail "Name=Megapixels" "Name=Megapixels-Next"
       '';
     });
+
+    env.CAMERA = "me.gapixels.Megapixels.desktop";
   };
 }
diff --git a/hosts/common/programs/megapixels.nix b/hosts/common/programs/megapixels.nix
index b6e112ffe..7584334bf 100644
--- a/hosts/common/programs/megapixels.nix
+++ b/hosts/common/programs/megapixels.nix
@@ -50,5 +50,9 @@
     # sandbox.keepPidsAndProc = true;
 
     suggestedPrograms = [ "dconf" ];  #< not sure if necessary
+
+    # until `env.` supports priorities, leave it unset and let megapixels-next + consumers figure out the default camera app
+    # mime.priority = 200;  #< fallback
+    # env.CAMERA = lib.mkDefault "org.postmarketos.Megapixels.desktop";
   };
 }
diff --git a/hosts/common/programs/sane-input-handler/sane-input-handler b/hosts/common/programs/sane-input-handler/sane-input-handler
index 640720319..40243df03 100755
--- a/hosts/common/programs/sane-input-handler/sane-input-handler
+++ b/hosts/common/programs/sane-input-handler/sane-input-handler
@@ -58,6 +58,7 @@
 # increments to use for volume adjustment (in %)
 VOL_INCR=5
 KEYBOARD="${KEYBOARD:-wvkbd-mobintl}"
+CAMERA="${CAMERA:-org.postmarketos.Megapixels.desktop}"
 
 action="$1"
 
@@ -228,7 +229,7 @@ dispatchOn() {
       ;;
     "power_and_voldown")
       # power (hold) -> voldown: open camera
-      handleWith sane-open --auto-keyboard --application org.postmarketos.Megapixels.desktop
+      handleWith sane-open --auto-keyboard --application "$CAMERA"
       ;;
     "power_then_volup")
       # power (tap) -> volup: rotate CCW