[chip-tool] Move WebSocketServer code to src/app/tests/suites/server …

…so it can be reused (#24617)

examples/chip-tool/BUILD.gn

@@ -28,6 +28,7 @@ assert(chip_build_tools)
 config("config") {
   include_dirs = [
     ".",
+    "${chip_root}/examples/common",
     "${chip_root}/zzz_generated/app-common/app-common",
     "${chip_root}/zzz_generated/chip-tool",
     "${chip_root}/src/lib",
@@ -87,13 +88,11 @@ static_library("chip-tool-utils") {
   deps = []
 
   if (config_use_interactive_mode) {
-    sources += [
-      "commands/interactive/InteractiveCommands.cpp",
-      "commands/interactive/WebSocketServer.cpp",
-      "commands/interactive/WebSocketServer.h",
-      "commands/interactive/WebSocketServerDelegate.h",
+    sources += [ "commands/interactive/InteractiveCommands.cpp" ]
+    deps += [
+      "${chip_root}/examples/common/websocket-server",
+      "${editline_root}:editline",
     ]
-    deps += [ "${editline_root}:editline" ]
   }
 
   if (config_enable_yaml_tests) {
@@ -116,7 +115,6 @@ static_library("chip-tool-utils") {
     "${chip_root}/src/platform",
     "${chip_root}/third_party/inipp",
     "${chip_root}/third_party/jsoncpp",
-    "${chip_root}/third_party/libwebsockets",
   ]
 
   public_configs = [ ":config" ]

examples/chip-tool/commands/interactive/InteractiveCommands.h

@@ -22,7 +22,7 @@
 #include "../common/CHIPCommand.h"
 #include "../common/Commands.h"
 
-#include "WebSocketServer.h"
+#include <websocket-server/WebSocketServer.h>
 
 class Commands;
 

examples/common/websocket-server/BUILD.gn

@@ -0,0 +1,31 @@
+# Copyright (c) 2023 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build_overrides/build.gni")
+import("//build_overrides/chip.gni")
+
+static_library("websocket-server") {
+  output_name = "libWebSocketServer"
+
+  sources = [
+    "WebSocketServer.cpp",
+    "WebSocketServer.h",
+    "WebSocketServerDelegate.h",
+  ]
+
+  public_deps = [
+    "${chip_root}/src/lib/support",
+    "${chip_root}/third_party/libwebsockets",
+  ]
+}

examples/chip-tool/commands/interactive/WebSocketServer.cpp → examples/common/websocket-server/WebSocketServer.cpp

@@ -19,6 +19,7 @@
 #include "WebSocketServer.h"
 
 #include <lib/support/ScopedBuffer.h>
+#include <libwebsockets.h>
 
 constexpr uint16_t kDefaultWebSocketServerPort = 9002;
 constexpr uint16_t kMaxMessageBufferLen        = 8192;

examples/chip-tool/commands/interactive/WebSocketServer.h → examples/common/websocket-server/WebSocketServer.h

@@ -22,7 +22,6 @@
 
 #include <lib/core/Optional.h>
 #include <lib/support/CHIPMem.h>
-#include <libwebsockets.h>
 
 class WebSocketServer
 {