From fd4d379b6777168c3251c85d153dbdf6b82f2b35 Mon Sep 17 00:00:00 2001
From: Ophestra <cat@gensokyo.uk>
Date: Wed, 26 Nov 2025 16:05:46 +0900
Subject: [PATCH] internal/pipewire: implement Client::Info

Everything is already supported, as usual.

Signed-off-by: Ophestra <cat@gensokyo.uk>
---
 internal/pipewire/client.go                   |  20 +++++++++++++++++
 internal/pipewire/client_test.go              |  21 ++++++++++++++++++
 internal/pipewire/header_test.go              |   6 +++++
 internal/pipewire/pipewire_test.go            |   5 +++++
 .../testdata/13-recvmsg00-message02-header    | Bin 0 -> 16 bytes
 .../testdata/14-recvmsg00-message02-POD       | Bin 0 -> 496 bytes
 6 files changed, 52 insertions(+)
 create mode 100644 internal/pipewire/testdata/13-recvmsg00-message02-header
 create mode 100644 internal/pipewire/testdata/14-recvmsg00-message02-POD

diff --git a/internal/pipewire/client.go b/internal/pipewire/client.go
index 4480dc8..ce2b627 100644
--- a/internal/pipewire/client.go
+++ b/internal/pipewire/client.go
@@ -35,6 +35,26 @@ const (
 	PW_VERSION_CLIENT_METHODS = 0
 )
 
+// The ClientInfo event provides client information updates.
+// This is emitted when binding to a client or when the client info is updated later.
+type ClientInfo struct {
+	// The global id of the client.
+	ID Int
+	// The changes emitted by this event.
+	ChangeMask Long
+	// Properties of this object, valid when change_mask has PW_CLIENT_CHANGE_MASK_PROPS.
+	Props *SPADict
+}
+
+// MarshalBinary satisfies [encoding.BinaryMarshaler] via [Marshal].
+func (c *ClientInfo) MarshalBinary() ([]byte, error) { return Marshal(c) }
+
+// UnmarshalBinary satisfies [encoding.BinaryUnmarshaler] via [Unmarshal].
+func (c *ClientInfo) UnmarshalBinary(data []byte) error {
+	_, err := Unmarshal(data, c)
+	return err
+}
+
 // ClientUpdateProperties is used to update the properties of a client.
 type ClientUpdateProperties struct {
 	// Props are properties to update on the client.
diff --git a/internal/pipewire/client_test.go b/internal/pipewire/client_test.go
index 378112b..c9d790c 100644
--- a/internal/pipewire/client_test.go
+++ b/internal/pipewire/client_test.go
@@ -6,6 +6,27 @@ import (
 	"hakurei.app/internal/pipewire"
 )
 
+func TestClientInfo(t *testing.T) {
+	t.Parallel()
+
+	encodingTestCases[pipewire.ClientInfo, *pipewire.ClientInfo]{
+		{"sample", []byte(recvmsg00Message02POD), pipewire.ClientInfo{
+			ID:         34,
+			ChangeMask: pipewire.PW_CLIENT_CHANGE_MASK_PROPS,
+			Props: &pipewire.SPADict{NItems: 9, Items: []pipewire.SPADictItem{
+				{Key: "pipewire.protocol", Value: "protocol-native"},
+				{Key: "core.name", Value: "pipewire-0"},
+				{Key: "pipewire.sec.socket", Value: "pipewire-0-manager"},
+				{Key: "pipewire.sec.pid", Value: "1443"},
+				{Key: "pipewire.sec.uid", Value: "1000"},
+				{Key: "pipewire.sec.gid", Value: "100"},
+				{Key: "module.id", Value: "2"},
+				{Key: "object.id", Value: "34"},
+				{Key: "object.serial", Value: "34"},
+			}}}, nil},
+	}.run(t)
+}
+
 func TestClientUpdateProperties(t *testing.T) {
 	t.Parallel()
 
diff --git a/internal/pipewire/header_test.go b/internal/pipewire/header_test.go
index 5ac5910..0618988 100644
--- a/internal/pipewire/header_test.go
+++ b/internal/pipewire/header_test.go
@@ -47,6 +47,12 @@ func TestHeader(t *testing.T) {
 			Size:   0x198, Sequence: 1, FileCount: 0,
 		}, nil},
 
+		{"PW_CLIENT_EVENT_INFO", []byte(recvmsg00Message02Header), pipewire.Header{
+			ID:     pipewire.PW_ID_CLIENT,
+			Opcode: pipewire.PW_CLIENT_EVENT_INFO,
+			Size:   0x1f0, Sequence: 2, FileCount: 0,
+		}, nil},
+
 		{"PW_SECURITY_CONTEXT_METHOD_CREATE", []byte{
 			// Id
 			3, 0, 0, 0,
diff --git a/internal/pipewire/pipewire_test.go b/internal/pipewire/pipewire_test.go
index cd19001..9511e2f 100644
--- a/internal/pipewire/pipewire_test.go
+++ b/internal/pipewire/pipewire_test.go
@@ -36,4 +36,9 @@ var (
 	recvmsg00Message01Header string
 	//go:embed testdata/12-recvmsg00-message01-POD
 	recvmsg00Message01POD string
+
+	//go:embed testdata/13-recvmsg00-message02-header
+	recvmsg00Message02Header string
+	//go:embed testdata/14-recvmsg00-message02-POD
+	recvmsg00Message02POD string
 )
diff --git a/internal/pipewire/testdata/13-recvmsg00-message02-header b/internal/pipewire/testdata/13-recvmsg00-message02-header
new file mode 100644
index 0000000000000000000000000000000000000000..d83c686a70a9a53388f33f60fa1aff5d2f7cffc6
GIT binary patch
literal 16
ScmZQ%U|{&b$iTqF0096CdjRzS

literal 0
HcmV?d00001

diff --git a/internal/pipewire/testdata/14-recvmsg00-message02-POD b/internal/pipewire/testdata/14-recvmsg00-message02-POD
new file mode 100644
index 0000000000000000000000000000000000000000..8bb8ebb602d9a95979dc4090dc1823e5a053e5df
GIT binary patch
literal 496
zcmaFC$iTqIz`(!)#Yzkiz`?-4z{<eDzzE?o96(dY2^AM&U|;~LEyyfLEzc}U)hj5<
zFUe2N&w<Jdz~rIAx_OBunPsUATu|}k{GwF7yu{p8sCsUwILtg<1BiqOnz&wZYO-E&
zesXqd30Q$Jn!K)oZf;^;VtQ&3Seii)O&+YjATtFb3-K$+ABH9-#vn1Q>PxYxH!uLZ
z5UcuhgnCf;g3X60hx<P_KczG$RS&L^3F=NGkRuov;Og>|vQm>v5bBtr>Wobw3PEuQ
RG9Rk0IJGD<5flgL>Hul2NBRH&

literal 0
HcmV?d00001