{ lib
, stdenv
, alsa-lib
, dbus
, docutils
, ell
, enableExperimental ? false
, fetchpatch
, fetchurl
, glib
, json_c
, libical
, pkg-config
, python3
, readline
, systemdMinimal
, udev
# Test gobject-introspection instead of pygobject because the latter
# causes an infinite recursion.
, gobject-introspection
, buildPackages
, installTests ? lib.meta.availableOn stdenv.hostPlatform gobject-introspection && stdenv.hostPlatform.emulatorAvailable buildPackages
}:

stdenv.mkDerivation (finalAttrs: {
  pname = "bluez";
  version = "5.76";

  src = fetchurl {
    url = "mirror://kernel/linux/bluetooth/bluez-${finalAttrs.version}.tar.xz";
    hash = "sha256-VeLGRZCa2C2DPELOhewgQ04O8AcJQbHqtz+s3SQLvWM=";
  };

  patches = [
    # hog-lib: Fix passing wrong parameters to bt_uhid_get_report_reply
    (fetchpatch {
      url = "https://github.com/bluez/bluez/commit/5ebaeab4164f80539904b9a520d9b7a8307e06e2.patch";
      hash = "sha256-f1A8DmRPfm+zid4XMj1zsfcLZ0WTEax3YPbydKZF9RE=";
    })
  ]
    # Disable one failing test with musl libc, also seen by alpine
    # https://github.com/bluez/bluez/issues/726
    ++ lib.optional (stdenv.hostPlatform.isMusl && stdenv.hostPlatform.isx86_64)
      (fetchurl {
        url = "https://git.alpinelinux.org/aports/plain/main/bluez/disable_aics_unit_testcases.patch?id=8e96f7faf01a45f0ad8449c1cd825db63a8dfd48";
        hash = "sha256-1PJkipqBO3qxxOqRFQKfpWlne1kzTCgtnTFYI1cFQt4=";
      })
  ;

  buildInputs = [
    alsa-lib
    dbus
    ell
    glib
    json_c
    libical
    python3
    readline
    udev
  ];

  nativeBuildInputs = [
    docutils
    pkg-config
    python3.pkgs.wrapPython
  ];

  outputs = [ "out" "dev" ]
    ++ lib.optional installTests "test";

  postPatch = ''
    substituteInPlace tools/hid2hci.rules \
      --replace /sbin/udevadm ${systemdMinimal}/bin/udevadm \
      --replace "hid2hci " "$out/lib/udev/hid2hci "
  '' +
  # Disable some tests:
  # - test-mesh-crypto depends on the following kernel settings:
  #   CONFIG_CRYPTO_[USER|USER_API|USER_API_AEAD|USER_API_HASH|AES|CCM|AEAD|CMAC]
  ''
    if [[ ! -f unit/test-mesh-crypto.c ]]; then
      echo "unit/test-mesh-crypto.c no longer exists"
      false
    fi
    echo 'int main() { return 77; }' > unit/test-mesh-crypto.c
  '';

  configureFlags = [
    "--localstatedir=/var"
    (lib.enableFeature enableExperimental "experimental")
    (lib.enableFeature true "btpclient")
    (lib.enableFeature true "cups")
    (lib.enableFeature true "external-ell")
    (lib.enableFeature true "health")
    (lib.enableFeature true "hid2hci")
    (lib.enableFeature true "library")
    (lib.enableFeature true "logger")
    (lib.enableFeature true "mesh")
    (lib.enableFeature true "midi")
    (lib.enableFeature true "nfc")
    (lib.enableFeature true "pie")
    (lib.enableFeature true "sixaxis")
    # Set "deprecated" to provide ciptool, sdptool, and rfcomm (unmaintained);
    # superseded by new D-Bus APIs
    (lib.enableFeature true "deprecated")
    (lib.withFeatureAs true "dbusconfdir" "${placeholder "out"}/share")
    (lib.withFeatureAs true "dbussessionbusdir" "${placeholder "out"}/share/dbus-1/services")
    (lib.withFeatureAs true "dbussystembusdir" "${placeholder "out"}/share/dbus-1/system-services")
    (lib.withFeatureAs true "systemdsystemunitdir" "${placeholder "out"}/etc/systemd/system")
    (lib.withFeatureAs true "systemduserunitdir" "${placeholder "out"}/etc/systemd/user")
    (lib.withFeatureAs true "udevdir" "${placeholder "out"}/lib/udev")
  ];

  makeFlags = [
    "rulesdir=${placeholder "out"}/lib/udev/rules.d"
  ];

  # Work around `make install' trying to create /var/lib/bluetooth.
  installFlags = [
    "statedir=$(TMPDIR)/var/lib/bluetooth"
  ];

  doCheck = stdenv.hostPlatform.isx86_64;

  postInstall = let
    pythonPath = with python3.pkgs; [
      dbus-python
      pygobject3
    ];
  in
  ''
    # for bluez4 compatibility for NixOS
    mkdir $out/sbin
    ln -s ../libexec/bluetooth/bluetoothd $out/sbin/bluetoothd
    ln -s ../libexec/bluetooth/obexd $out/sbin/obexd

    # Add extra configuration
    rm $out/etc/bluetooth/{main,input,network}.conf
    ln -s /etc/bluetooth/main.conf $out/etc/bluetooth/main.conf

    # https://github.com/NixOS/nixpkgs/issues/204418
    ln -s /etc/bluetooth/input.conf $out/etc/bluetooth/input.conf
    ln -s /etc/bluetooth/network.conf $out/etc/bluetooth/network.conf

    # Add missing tools, ref https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/bluez
    for files in $(find tools/ -type f -perm -755); do
      filename=$(basename $files)
      install -Dm755 tools/$filename $out/bin/$filename
    done
    install -Dm755 attrib/gatttool $out/bin/gatttool
  '' + lib.optionalString installTests ''
    mkdir -p $test/{bin,test}
    cp -a test $test
    pushd $test/test
    for t in \
            list-devices \
            monitor-bluetooth \
            simple-agent \
            test-adapter \
            test-device \
            test-thermometer \
            ; do
      ln -s ../test/$t $test/bin/bluez-$t
    done
    popd
    wrapPythonProgramsIn $test/test "$test/test ${toString pythonPath}"
  '';

  enableParallelBuilding = true;

  meta = {
    homepage = "https://www.bluez.org/";
    description = "Official Linux Bluetooth protocol stack";
    changelog = "https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/ChangeLog?h=${finalAttrs.version}";
    license = with lib.licenses; [ bsd2 gpl2Plus lgpl21Plus mit ];
    mainProgram = "btinfo";
    maintainers = with lib.maintainers; [ AndersonTorres ];
    platforms = lib.platforms.linux;
  };
})