Implement base browser-side logging system

.github/CODEOWNERS

@@ -788,6 +788,9 @@ packages/core/lifecycle/core-lifecycle-browser-mocks @elastic/kibana-core
 packages/core/lifecycle/core-lifecycle-server @elastic/kibana-core
 packages/core/lifecycle/core-lifecycle-server-internal @elastic/kibana-core
 packages/core/lifecycle/core-lifecycle-server-mocks @elastic/kibana-core
+packages/core/logging/core-logging-browser-internal @elastic/kibana-core
+packages/core/logging/core-logging-browser-mocks @elastic/kibana-core
+packages/core/logging/core-logging-common-internal @elastic/kibana-core
 packages/core/logging/core-logging-server @elastic/kibana-core
 packages/core/logging/core-logging-server-internal @elastic/kibana-core
 packages/core/logging/core-logging-server-mocks @elastic/kibana-core

package.json

@@ -243,6 +243,9 @@
     "@kbn/core-lifecycle-server": "link:bazel-bin/packages/core/lifecycle/core-lifecycle-server",
     "@kbn/core-lifecycle-server-internal": "link:bazel-bin/packages/core/lifecycle/core-lifecycle-server-internal",
     "@kbn/core-lifecycle-server-mocks": "link:bazel-bin/packages/core/lifecycle/core-lifecycle-server-mocks",
+    "@kbn/core-logging-browser-internal": "link:bazel-bin/packages/core/logging/core-logging-browser-internal",
+    "@kbn/core-logging-browser-mocks": "link:bazel-bin/packages/core/logging/core-logging-browser-mocks",
+    "@kbn/core-logging-common-internal": "link:bazel-bin/packages/core/logging/core-logging-common-internal",
     "@kbn/core-logging-server": "link:bazel-bin/packages/core/logging/core-logging-server",
     "@kbn/core-logging-server-internal": "link:bazel-bin/packages/core/logging/core-logging-server-internal",
     "@kbn/core-logging-server-mocks": "link:bazel-bin/packages/core/logging/core-logging-server-mocks",

packages/BUILD.bazel

@@ -108,6 +108,9 @@ filegroup(
     "//packages/core/lifecycle/core-lifecycle-server:build",
     "//packages/core/lifecycle/core-lifecycle-server-internal:build",
     "//packages/core/lifecycle/core-lifecycle-server-mocks:build",
+    "//packages/core/logging/core-logging-browser-internal:build",
+    "//packages/core/logging/core-logging-browser-mocks:build",
+    "//packages/core/logging/core-logging-common-internal:build",
     "//packages/core/logging/core-logging-server:build",
     "//packages/core/logging/core-logging-server-internal:build",
     "//packages/core/logging/core-logging-server-mocks:build",
@@ -463,6 +466,9 @@ filegroup(
     "//packages/core/lifecycle/core-lifecycle-server:build_types",
     "//packages/core/lifecycle/core-lifecycle-server-internal:build_types",
     "//packages/core/lifecycle/core-lifecycle-server-mocks:build_types",
+    "//packages/core/logging/core-logging-browser-internal:build_types",
+    "//packages/core/logging/core-logging-browser-mocks:build_types",
+    "//packages/core/logging/core-logging-common-internal:build_types",
     "//packages/core/logging/core-logging-server:build_types",
     "//packages/core/logging/core-logging-server-internal:build_types",
     "//packages/core/logging/core-logging-server-mocks:build_types",

packages/core/base/core-base-browser-internal/src/core_context.ts

@@ -7,11 +7,13 @@
  */
 
 import type { EnvironmentMode, PackageInfo } from '@kbn/config';
+import type { LoggerFactory } from '@kbn/logging';
 import type { CoreId } from '@kbn/core-base-common-internal';
 
 /** @internal */
 export interface CoreContext {
   coreId: CoreId;
+  logger: LoggerFactory;
   env: {
     mode: Readonly<EnvironmentMode>;
     packageInfo: Readonly<PackageInfo>;

packages/core/base/core-base-browser-mocks/BUILD.bazel

@@ -35,12 +35,14 @@ NPM_MODULE_EXTRA_FILES = [
 ]
 
 RUNTIME_DEPS = [
+  "//packages/kbn-logging-mocks",
 ]
 
 TYPES_DEPS = [
   "@npm//@types/node",
   "@npm//@types/jest",
-   "//packages/core/base/core-base-browser-internal:npm_module_types",
+  "//packages/kbn-logging-mocks:npm_module_types",
+  "//packages/core/base/core-base-browser-internal:npm_module_types",
 ]
 
 jsts_transpiler(

packages/core/base/core-base-browser-mocks/src/core_context.mock.ts

@@ -6,11 +6,13 @@
  * Side Public License, v 1.
  */
 
+import { loggerMock } from '@kbn/logging-mocks';
 import type { CoreContext } from '@kbn/core-base-browser-internal';
 
 function createCoreContext({ production = false }: { production?: boolean } = {}): CoreContext {
   return {
     coreId: Symbol('core context mock'),
+    logger: loggerMock.create(),
     env: {
       mode: {
         dev: !production,

packages/core/logging/core-logging-browser-internal/BUILD.bazel

@@ -0,0 +1,114 @@
+load("@npm//@bazel/typescript:index.bzl", "ts_config")
+load("@build_bazel_rules_nodejs//:index.bzl", "js_library")
+load("//src/dev/bazel:index.bzl", "jsts_transpiler", "pkg_npm", "pkg_npm_types", "ts_project")
+
+PKG_DIRNAME = "core-logging-browser-internal"
+PKG_REQUIRE_NAME = "@kbn/core-logging-browser-internal"
+
+SOURCE_FILES = glob(
+  [
+    "**/*.ts",
+    "**/*.tsx",
+  ],
+  exclude = [
+    "**/*.config.js",
+    "**/*.mock.*",
+    "**/*.test.*",
+    "**/*.stories.*",
+    "**/__snapshots__/**",
+    "**/integration_tests/**",
+    "**/mocks/**",
+    "**/scripts/**",
+    "**/storybook/**",
+    "**/test_fixtures/**",
+    "**/test_helpers/**",
+  ],
+)
+
+SRCS = SOURCE_FILES
+
+filegroup(
+  name = "srcs",
+  srcs = SRCS,
+)
+
+NPM_MODULE_EXTRA_FILES = [
+  "package.json",
+]
+
+RUNTIME_DEPS = [
+   "//packages/core/logging/core-logging-common-internal",
+]
+
+TYPES_DEPS = [
+  "@npm//@types/node",
+  "@npm//@types/jest",
+  "//packages/kbn-logging:npm_module_types",
+  "//packages/core/logging/core-logging-common-internal:npm_module_types",
+]
+
+jsts_transpiler(
+  name = "target_node",
+  srcs = SRCS,
+  build_pkg_name = package_name(),
+)
+
+jsts_transpiler(
+  name = "target_web",
+  srcs = SRCS,
+  build_pkg_name = package_name(),
+  web = True,
+)
+
+ts_config(
+  name = "tsconfig",
+  src = "tsconfig.json",
+  deps = [
+    "//:tsconfig.base.json",
+    "//:tsconfig.bazel.json",
+  ],
+)
+
+ts_project(
+  name = "tsc_types",
+  args = ['--pretty'],
+  srcs = SRCS,
+  deps = TYPES_DEPS,
+  declaration = True,
+  emit_declaration_only = True,
+  out_dir = "target_types",
+  tsconfig = ":tsconfig",
+)
+
+js_library(
+  name = PKG_DIRNAME,
+  srcs = NPM_MODULE_EXTRA_FILES,
+  deps = RUNTIME_DEPS + [":target_node", ":target_web"],
+  package_name = PKG_REQUIRE_NAME,
+  visibility = ["//visibility:public"],
+)
+
+js_library(
+  name = "npm_module_types",
+  srcs = NPM_MODULE_EXTRA_FILES,
+  deps = RUNTIME_DEPS + [":target_node", ":target_web", ":tsc_types"],
+  package_name = PKG_REQUIRE_NAME,
+  visibility = ["//visibility:public"],
+)
+
+pkg_npm(
+  name = "npm_module",
+  deps = [":" + PKG_DIRNAME],
+)
+
+filegroup(
+  name = "build",
+  srcs = [":npm_module"],
+  visibility = ["//visibility:public"],
+)
+
+pkg_npm(
+  name = "build_types",
+  deps = [":npm_module_types"],
+  visibility = ["//visibility:public"],
+)

packages/core/logging/core-logging-browser-internal/README.md

@@ -0,0 +1,3 @@
+# @kbn/core-logging-browser-internal
+
+This package contains the internal types and implementation for Core's browser-side logging service.

packages/core/logging/core-logging-browser-internal/index.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+export { BaseLogger, BrowserLoggingSystem, type IBrowserLoggingSystem } from './src';

packages/core/logging/core-logging-browser-internal/jest.config.js

@@ -0,0 +1,13 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+module.exports = {
+  preset: '@kbn/test',
+  rootDir: '../../../..',
+  roots: ['<rootDir>/packages/core/logging/core-logging-browser-internal'],
+};

packages/core/logging/core-logging-browser-internal/kibana.jsonc

@@ -0,0 +1,7 @@
+{
+  "type": "shared-common",
+  "id": "@kbn/core-logging-browser-internal",
+  "owner": "@elastic/kibana-core",
+  "runtimeDeps": [],
+  "typeDeps": [],
+}

packages/core/logging/core-logging-browser-internal/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "@kbn/core-logging-browser-internal",
+  "private": true,
+  "version": "1.0.0",
+  "main": "./target_node/index.js",
+  "browser": "./target_web/index.js",
+  "author": "Kibana Core",
+  "license": "SSPL-1.0 OR Elastic License 2.0",
+  "types": "./target_types/index.d.ts"
+}

packages/core/logging/core-logging-browser-internal/src/appenders/console_appender.test.ts

@@ -0,0 +1,56 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+import { LogRecord, LogLevel } from '@kbn/logging';
+import { ConsoleAppender } from './console_appender';
+
+test('`append()` correctly formats records and pushes them to console.', () => {
+  jest.spyOn(global.console, 'log').mockImplementation(() => {
+    // noop
+  });
+
+  const records: LogRecord[] = [
+    {
+      context: 'context-1',
+      level: LogLevel.All,
+      message: 'message-1',
+      timestamp: new Date(),
+      pid: 5355,
+    },
+    {
+      context: 'context-2',
+      level: LogLevel.Trace,
+      message: 'message-2',
+      timestamp: new Date(),
+      pid: 5355,
+    },
+    {
+      context: 'context-3',
+      error: new Error('Error'),
+      level: LogLevel.Fatal,
+      message: 'message-3',
+      timestamp: new Date(),
+      pid: 5355,
+    },
+  ];
+
+  const appender = new ConsoleAppender({
+    format(record) {
+      return `mock-${JSON.stringify(record)}`;
+    },
+  });
+
+  for (const record of records) {
+    appender.append(record);
+    // eslint-disable-next-line no-console
+    expect(console.log).toHaveBeenCalledWith(`mock-${JSON.stringify(record)}`);
+  }
+
+  // eslint-disable-next-line no-console
+  expect(console.log).toHaveBeenCalledTimes(records.length);
+});

packages/core/logging/core-logging-browser-internal/src/appenders/console_appender.ts

@@ -0,0 +1,38 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+import type { Layout, LogRecord, DisposableAppender } from '@kbn/logging';
+
+/**
+ *
+ * Appender that formats all the `LogRecord` instances it receives and logs them via built-in `console`.
+ * @internal
+ */
+export class ConsoleAppender implements DisposableAppender {
+  /**
+   * Creates ConsoleAppender instance.
+   * @param layout Instance of `Layout` sub-class responsible for `LogRecord` formatting.
+   */
+  constructor(private readonly layout: Layout) {}
+
+  /**
+   * Formats specified `record` and logs it via built-in `console`.
+   * @param record `LogRecord` instance to be logged.
+   */
+  public append(record: LogRecord) {
+    // eslint-disable-next-line no-console
+    console.log(this.layout.format(record));
+  }
+
+  /**
+   * Disposes `ConsoleAppender`.
+   */
+  public dispose() {
+    // noop
+  }
+}

packages/core/logging/core-logging-browser-internal/src/appenders/index.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+export { ConsoleAppender } from './console_appender';

packages/core/logging/core-logging-browser-internal/src/index.ts

@@ -0,0 +1,10 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+export { BaseLogger } from './logger';
+export { BrowserLoggingSystem, type IBrowserLoggingSystem } from './logging_system';