From 2355a1ec16421122335f057886abee602c8e97f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=97=8D+85CD?= <50108258+kwaa@users.noreply.github.com>
Date: Tue, 10 Dec 2024 15:21:53 +0800
Subject: [PATCH 1/4] refactor(utils): use `.toISOString` instead of
 `formatISO`

---
 src/utils.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/utils.ts b/src/utils.ts
index a2e165a..70aa657 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,5 @@
 import chalk from 'chalk'
-import { format, formatISO } from 'date-fns'
+import { format } from 'date-fns'
 import { DEFAULT_TIME_FORMAT, logLevelStringToLogLevelMap, logLevelToChalkColorMap } from './constants'
 import type { Log, LogLevelString, LoggerConfig } from './types'
 import { LogLevel } from './types'
@@ -57,7 +57,7 @@ export function newLog(
   }
 
   const raw: Log = {
-    '@timestamp': formatISO(new Date()),
+    '@timestamp': new Date().toISOString(),
     '@localetime': format(new Date(), timeFormat),
     'level': logLevel,
     'fields': fieldsObj,

From cc42c74e34fd2cc4b5c35b250cd6fd31e95c3c13 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=97=8D+85CD?= <50108258+kwaa@users.noreply.github.com>
Date: Tue, 10 Dec 2024 16:33:56 +0800
Subject: [PATCH 2/4] refactor: use `picocolors` instead of `chalk`

---
 package.json     |  4 ++--
 pnpm-lock.yaml   | 30 +++++++++++++++---------------
 src/constants.ts | 16 +++++++++-------
 src/utils.ts     | 29 ++++++++++++-----------------
 4 files changed, 38 insertions(+), 41 deletions(-)

diff --git a/package.json b/package.json
index 1f68a05..d98ef43 100644
--- a/package.json
+++ b/package.json
@@ -43,8 +43,8 @@
     "test:run": "vitest run"
   },
   "dependencies": {
-    "chalk": "^5.3.0",
-    "date-fns": "^4.1.0"
+    "date-fns": "^4.1.0",
+    "picocolors": "^1.1.1"
   },
   "devDependencies": {
     "@antfu/eslint-config": "2.21",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 456580d..516d7a6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,12 +8,12 @@ importers:
 
   .:
     dependencies:
-      chalk:
-        specifier: ^5.3.0
-        version: 5.3.0
       date-fns:
         specifier: ^4.1.0
         version: 4.1.0
+      picocolors:
+        specifier: ^1.1.1
+        version: 1.1.1
     devDependencies:
       '@antfu/eslint-config':
         specifier: '2.21'
@@ -2167,8 +2167,8 @@ packages:
   perfect-debounce@1.0.0:
     resolution: {integrity: sha512-xCy9V055GLEqoFaHoC1SoLIaLmWctgCUaBaWxDZ7/Zx4CTyX7cJQLJOok/orfjZAh9kEYpjJa4d0KcJmCbctZA==}
 
-  picocolors@1.0.1:
-    resolution: {integrity: sha512-anP1Z8qwhkbmu7MFP5iTt+wQKXgwzf7zTyGlcdzabySa9vd0Xt392U0rVmz9poOaBj0uHJKyyo9/upk0HrEQew==}
+  picocolors@1.1.1:
+    resolution: {integrity: sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==}
 
   picomatch@2.3.1:
     resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
@@ -2866,7 +2866,7 @@ snapshots:
       jsonc-eslint-parser: 2.4.0
       local-pkg: 0.5.0
       parse-gitignore: 2.0.0
-      picocolors: 1.0.1
+      picocolors: 1.1.1
       toml-eslint-parser: 0.10.0
       vue-eslint-parser: 9.4.3(eslint@8.57.0)
       yaml-eslint-parser: 1.2.3
@@ -2887,7 +2887,7 @@ snapshots:
   '@babel/code-frame@7.24.7':
     dependencies:
       '@babel/highlight': 7.24.7
-      picocolors: 1.0.1
+      picocolors: 1.1.1
 
   '@babel/compat-data@7.25.2': {}
 
@@ -2966,7 +2966,7 @@ snapshots:
       '@babel/helper-validator-identifier': 7.24.7
       chalk: 2.4.2
       js-tokens: 4.0.0
-      picocolors: 1.0.1
+      picocolors: 1.1.1
 
   '@babel/parser@7.25.0':
     dependencies:
@@ -3000,13 +3000,13 @@ snapshots:
 
   '@clack/core@0.3.4':
     dependencies:
-      picocolors: 1.0.1
+      picocolors: 1.1.1
       sisteransi: 1.0.5
 
   '@clack/prompts@0.7.0':
     dependencies:
       '@clack/core': 0.3.4
-      picocolors: 1.0.1
+      picocolors: 1.1.1
       sisteransi: 1.0.5
 
   '@es-joy/jsdoccomment@0.43.1':
@@ -3728,7 +3728,7 @@ snapshots:
       caniuse-lite: 1.0.30001643
       fraction.js: 4.3.7
       normalize-range: 0.1.2
-      picocolors: 1.0.1
+      picocolors: 1.1.1
       postcss: 8.4.40
       postcss-value-parser: 4.2.0
 
@@ -4979,7 +4979,7 @@ snapshots:
 
   perfect-debounce@1.0.0: {}
 
-  picocolors@1.0.1: {}
+  picocolors@1.1.1: {}
 
   picomatch@2.3.1: {}
 
@@ -5163,7 +5163,7 @@ snapshots:
   postcss@8.4.40:
     dependencies:
       nanoid: 3.3.7
-      picocolors: 1.0.1
+      picocolors: 1.1.1
       source-map-js: 1.2.0
 
   prelude-ls@1.2.1: {}
@@ -5375,7 +5375,7 @@ snapshots:
       css-tree: 2.3.1
       css-what: 6.1.0
       csso: 5.0.5
-      picocolors: 1.0.1
+      picocolors: 1.1.1
 
   synckit@0.6.2:
     dependencies:
@@ -5499,7 +5499,7 @@ snapshots:
     dependencies:
       browserslist: 4.23.2
       escalade: 3.1.2
-      picocolors: 1.0.1
+      picocolors: 1.1.1
 
   uri-js@4.4.1:
     dependencies:
diff --git a/src/constants.ts b/src/constants.ts
index a34645c..ca6a6cb 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,7 +1,9 @@
-import chalk, { type ChalkInstance } from 'chalk'
+import pc from 'picocolors'
 
 import { Format, LogLevel, LogLevelString } from './types'
 
+type PicoColorsFormatter = (input: string | number | null | undefined) => string
+
 export const logLevelStringToLogLevelMap: Record<LogLevelString, LogLevel> = {
   [LogLevelString.Error]: LogLevel.Error,
   [LogLevelString.Warning]: LogLevel.Warning,
@@ -26,12 +28,12 @@ export const availableLogLevelStrings: LogLevelString[] = [
   LogLevelString.Debug,
 ]
 
-export const logLevelToChalkColorMap: Record<LogLevel, ChalkInstance> = {
-  [LogLevel.Error]: chalk.red,
-  [LogLevel.Warning]: chalk.yellow,
-  [LogLevel.Log]: chalk.blue,
-  [LogLevel.Verbose]: chalk.cyan,
-  [LogLevel.Debug]: chalk.green,
+export const logLevelToColorMap: Record<LogLevel, PicoColorsFormatter> = {
+  [LogLevel.Error]: pc.red,
+  [LogLevel.Warning]: pc.yellow,
+  [LogLevel.Log]: pc.blue,
+  [LogLevel.Verbose]: pc.cyan,
+  [LogLevel.Debug]: pc.green,
 }
 
 export const availableLogLevels: LogLevel[] = [
diff --git a/src/utils.ts b/src/utils.ts
index 70aa657..58e858c 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,12 +1,9 @@
-import chalk from 'chalk'
+import pc from 'picocolors'
 import { format } from 'date-fns'
-import { DEFAULT_TIME_FORMAT, logLevelStringToLogLevelMap, logLevelToChalkColorMap } from './constants'
+import { DEFAULT_TIME_FORMAT, logLevelStringToLogLevelMap, logLevelToColorMap } from './constants'
 import type { Log, LogLevelString, LoggerConfig } from './types'
 import { LogLevel } from './types'
 
-// Force enable colors even in non-TTY environments
-chalk.level = 3
-
 export interface ErrorLike {
   message: string
   stack?: string
@@ -34,7 +31,6 @@ export function newLog(
   context: string,
   fields: Record<string, any>,
   message: string,
-  // eslint-disable-next-line ts/no-unsafe-assignment
   timeFormat: string = DEFAULT_TIME_FORMAT,
   ...optionalParams: [...any, string?]
 ): Log {
@@ -73,7 +69,6 @@ export function newErrorLog(
   fields: Record<string, any>,
   message: string,
   errorStack?: string,
-  // eslint-disable-next-line ts/no-unsafe-assignment
   timeFormat: string = DEFAULT_TIME_FORMAT,
   ...optionalParams: [...any, string?]
 ): Log {
@@ -92,26 +87,26 @@ export function toPrettyString(log: Log): string {
 
   messagePartials.push(log['@localetime'])
   messagePartials.push(
-    logLevelToChalkColorMap[logLevelStringToLogLevelMap[log.level]](
+    logLevelToColorMap[logLevelStringToLogLevelMap[log.level]](
       `[${log.level}]`,
     ),
   )
 
   let contextString = ''
   if (log.fields.isNestSystemModule != null) {
-    contextString = chalk.magenta(`[${log.fields.nestSystemModule}]`)
+    contextString = pc.magenta(`[${log.fields.nestSystemModule}]`)
     delete log.fields.isNestSystemModule
     delete log.fields.nestSystemModule
   }
   if (log.fields.context != null) {
-    contextString = chalk.magenta(`[${log.fields.context}]`)
+    contextString = pc.magenta(`[${log.fields.context}]`)
     delete log.fields.context
   }
   if (contextString.length > 0) {
     messagePartials.push(contextString)
   }
   if ('module' in log.fields && log.fields.module != null) {
-    messagePartials.push(chalk.magenta(`[${log.fields.module}]`))
+    messagePartials.push(pc.magenta(`[${log.fields.module}]`))
     delete log.fields.module
   }
 
@@ -143,16 +138,16 @@ export function toPrettyString(log: Log): string {
     else {
       switch (typeof value) {
         case 'number':
-          valueString = chalk.yellow(value)
+          valueString = pc.yellow(value)
           break
         case 'object':
-          valueString = chalk.green(JSON.stringify(value))
+          valueString = pc.green(JSON.stringify(value))
           break
         case 'boolean':
-          valueString = chalk.yellow(String(value))
+          valueString = pc.yellow(String(value))
           break
         case 'undefined':
-          valueString = chalk.gray('undefined')
+          valueString = pc.gray('undefined')
           break
         default:
           valueString = String(value)
@@ -160,7 +155,7 @@ export function toPrettyString(log: Log): string {
       }
     }
 
-    messagePartials.push(`${chalk.gray(key)}${chalk.gray('=')}${valueString}`)
+    messagePartials.push(`${pc.gray(key)}${pc.gray('=')}${valueString}`)
   }
 
   if (fieldsEntries.length > 0) {
@@ -197,6 +192,6 @@ export function shouldOutputErrorLevelLogWhenLogLevelIsOneOf(logLevel: LogLevel)
 
 export function initializeLogger(config?: LoggerConfig) {
   if (config?.forceColors) {
-    chalk.level = 3
+    // chalk.level = 3
   }
 }

From 07b926dc9ba9ca63817cb348d379c36e70ce6248 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=97=8D+85CD?= <50108258+kwaa@users.noreply.github.com>
Date: Tue, 10 Dec 2024 16:39:55 +0800
Subject: [PATCH 3/4] refactor: clean config, remove initializeLogger

---
 src/types.ts | 1 -
 src/utils.ts | 9 ++-------
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/types.ts b/src/types.ts
index 1755793..25110e0 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -37,6 +37,5 @@ export interface Log {
 }
 
 export interface LoggerConfig {
-  forceColors?: boolean
   timeFormat?: string
 }
diff --git a/src/utils.ts b/src/utils.ts
index 58e858c..558b527 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,7 +1,7 @@
 import pc from 'picocolors'
 import { format } from 'date-fns'
 import { DEFAULT_TIME_FORMAT, logLevelStringToLogLevelMap, logLevelToColorMap } from './constants'
-import type { Log, LogLevelString, LoggerConfig } from './types'
+import type { Log, LogLevelString } from './types'
 import { LogLevel } from './types'
 
 export interface ErrorLike {
@@ -54,6 +54,7 @@ export function newLog(
 
   const raw: Log = {
     '@timestamp': new Date().toISOString(),
+    // eslint-disable-next-line ts/no-unsafe-assignment, ts/no-unsafe-call
     '@localetime': format(new Date(), timeFormat),
     'level': logLevel,
     'fields': fieldsObj,
@@ -189,9 +190,3 @@ export function shouldOutputWarningLevelLogWhenLogLevelIsOneOf(logLevel: LogLeve
 export function shouldOutputErrorLevelLogWhenLogLevelIsOneOf(logLevel: LogLevel): boolean {
   return logLevel >= LogLevel.Error
 }
-
-export function initializeLogger(config?: LoggerConfig) {
-  if (config?.forceColors) {
-    // chalk.level = 3
-  }
-}

From b8b1281456c7305e45e1e29a0c52d3e9867c5ecd Mon Sep 17 00:00:00 2001
From: Neko <neko@ayaka.moe>
Date: Tue, 10 Dec 2024 17:05:33 +0800
Subject: [PATCH 4/4] perf: drop date-fns to reduce bundle size, inline
 picocolors for treeshaking (#1)

---
 build.config.ts    |   7 +++
 cspell.config.yaml |   2 +
 package.json       |   9 ++-
 pnpm-lock.yaml     | 144 ++++++++++++++++++++++-----------------------
 src/logger.ts      |   4 +-
 src/types.ts       |   2 +-
 src/utils.ts       |   7 +--
 7 files changed, 86 insertions(+), 89 deletions(-)
 create mode 100644 build.config.ts

diff --git a/build.config.ts b/build.config.ts
new file mode 100644
index 0000000..6143714
--- /dev/null
+++ b/build.config.ts
@@ -0,0 +1,7 @@
+import { defineBuildConfig } from 'unbuild'
+
+export default defineBuildConfig({
+  rollup: {
+    inlineDependencies: true,
+  },
+})
diff --git a/cspell.config.yaml b/cspell.config.yaml
index 9c72d27..c23759b 100644
--- a/cspell.config.yaml
+++ b/cspell.config.yaml
@@ -4,7 +4,9 @@ dictionaryDefinitions: []
 dictionaries: []
 words:
   - Ayaka
+  - bumpp
   - colorette
+  - localetime
   - Logg
   - Neko
 ignoreWords: []
diff --git a/package.json b/package.json
index d98ef43..57603e2 100644
--- a/package.json
+++ b/package.json
@@ -40,16 +40,15 @@
     "package:publish": "pnpm build && pnpm publish --access public --no-git-checks",
     "test": "vitest",
     "test:ui": "vitest --ui",
-    "test:run": "vitest run"
-  },
-  "dependencies": {
-    "date-fns": "^4.1.0",
-    "picocolors": "^1.1.1"
+    "test:run": "vitest run",
+    "typecheck": "tsc --noEmit"
   },
   "devDependencies": {
     "@antfu/eslint-config": "2.21",
     "bumpp": "^9.8.1",
     "eslint": "8",
+    "picocolors": "^1.1.1",
+    "typescript": "^5.7.2",
     "unbuild": "^2.0.0",
     "vitest": "^2.1.6"
   }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 516d7a6..4cbed63 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -7,26 +7,25 @@ settings:
 importers:
 
   .:
-    dependencies:
-      date-fns:
-        specifier: ^4.1.0
-        version: 4.1.0
-      picocolors:
-        specifier: ^1.1.1
-        version: 1.1.1
     devDependencies:
       '@antfu/eslint-config':
         specifier: '2.21'
-        version: 2.21.3(@vue/compiler-sfc@3.4.35)(eslint@8.57.0)(typescript@5.5.4)(vitest@2.1.6)
+        version: 2.21.3(@vue/compiler-sfc@3.4.35)(eslint@8.57.0)(typescript@5.7.2)(vitest@2.1.6)
       bumpp:
         specifier: ^9.8.1
         version: 9.8.1
       eslint:
         specifier: '8'
         version: 8.57.0
+      picocolors:
+        specifier: ^1.1.1
+        version: 1.1.1
+      typescript:
+        specifier: ^5.7.2
+        version: 5.7.2
       unbuild:
         specifier: ^2.0.0
-        version: 2.0.0(typescript@5.5.4)
+        version: 2.0.0(typescript@5.7.2)
       vitest:
         specifier: ^2.1.6
         version: 2.1.6
@@ -1261,9 +1260,6 @@ packages:
     resolution: {integrity: sha512-0LrrStPOdJj+SPCCrGhzryycLjwcgUSHBtxNA8aIDxf0GLsRh1cKYhB00Gd1lDOS4yGH69+SNn13+TWbVHETFQ==}
     engines: {node: ^10 || ^12.20.0 || ^14.13.0 || >=15.0.0, npm: '>=7.0.0'}
 
-  date-fns@4.1.0:
-    resolution: {integrity: sha512-Ukq0owbQXxa/U3EGtsdVBkR1w7KOQ5gIBqdH2hkvknzZPYvBxb/aa6E8L7tmjFtkwZBu3UXBbjIgPo/Ez4xaNg==}
-
   debug@3.2.7:
     resolution: {integrity: sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==}
     peerDependencies:
@@ -2667,8 +2663,8 @@ packages:
     resolution: {integrity: sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==}
     engines: {node: '>=8'}
 
-  typescript@5.5.4:
-    resolution: {integrity: sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==}
+  typescript@5.7.2:
+    resolution: {integrity: sha512-i5t66RHxDvVN40HfDd1PsEThGNnlMCMT3jMUuoh9/0TaqWevNontacunWyN02LA9/fIbEWlcHZcgTKb9QoaLfg==}
     engines: {node: '>=14.17'}
     hasBin: true
 
@@ -2833,13 +2829,13 @@ snapshots:
       '@jridgewell/gen-mapping': 0.3.5
       '@jridgewell/trace-mapping': 0.3.25
 
-  '@antfu/eslint-config@2.21.3(@vue/compiler-sfc@3.4.35)(eslint@8.57.0)(typescript@5.5.4)(vitest@2.1.6)':
+  '@antfu/eslint-config@2.21.3(@vue/compiler-sfc@3.4.35)(eslint@8.57.0)(typescript@5.7.2)(vitest@2.1.6)':
     dependencies:
       '@antfu/install-pkg': 0.3.3
       '@clack/prompts': 0.7.0
-      '@stylistic/eslint-plugin': 2.6.0(eslint@8.57.0)(typescript@5.5.4)
-      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)
-      '@typescript-eslint/parser': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@stylistic/eslint-plugin': 2.6.0(eslint@8.57.0)(typescript@5.7.2)
+      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)
+      '@typescript-eslint/parser': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       eslint: 8.57.0
       eslint-config-flat-gitignore: 0.1.8
       eslint-flat-config-utils: 0.2.5
@@ -2847,18 +2843,18 @@ snapshots:
       eslint-plugin-antfu: 2.3.4(eslint@8.57.0)
       eslint-plugin-command: 0.2.3(eslint@8.57.0)
       eslint-plugin-eslint-comments: 3.2.0(eslint@8.57.0)
-      eslint-plugin-import-x: 0.5.3(eslint@8.57.0)(typescript@5.5.4)
+      eslint-plugin-import-x: 0.5.3(eslint@8.57.0)(typescript@5.7.2)
       eslint-plugin-jsdoc: 48.10.2(eslint@8.57.0)
       eslint-plugin-jsonc: 2.16.0(eslint@8.57.0)
       eslint-plugin-markdown: 5.1.0(eslint@8.57.0)
       eslint-plugin-n: 17.10.1(eslint@8.57.0)
       eslint-plugin-no-only-tests: 3.1.0
-      eslint-plugin-perfectionist: 2.11.0(eslint@8.57.0)(typescript@5.5.4)(vue-eslint-parser@9.4.3(eslint@8.57.0))
+      eslint-plugin-perfectionist: 2.11.0(eslint@8.57.0)(typescript@5.7.2)(vue-eslint-parser@9.4.3(eslint@8.57.0))
       eslint-plugin-regexp: 2.6.0(eslint@8.57.0)
       eslint-plugin-toml: 0.11.1(eslint@8.57.0)
       eslint-plugin-unicorn: 54.0.0(eslint@8.57.0)
-      eslint-plugin-unused-imports: 3.2.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)
-      eslint-plugin-vitest: 0.5.4(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)(vitest@2.1.6)
+      eslint-plugin-unused-imports: 3.2.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)
+      eslint-plugin-vitest: 0.5.4(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)(vitest@2.1.6)
       eslint-plugin-vue: 9.27.0(eslint@8.57.0)
       eslint-plugin-yml: 1.14.0(eslint@8.57.0)
       eslint-processor-vue-blocks: 0.1.2(@vue/compiler-sfc@3.4.35)(eslint@8.57.0)
@@ -3434,31 +3430,31 @@ snapshots:
       estraverse: 5.3.0
       picomatch: 4.0.2
 
-  '@stylistic/eslint-plugin-plus@2.6.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@stylistic/eslint-plugin-plus@2.6.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@types/eslint': 9.6.0
-      '@typescript-eslint/utils': 8.0.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/utils': 8.0.0(eslint@8.57.0)(typescript@5.7.2)
       eslint: 8.57.0
     transitivePeerDependencies:
       - supports-color
       - typescript
 
-  '@stylistic/eslint-plugin-ts@2.6.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@stylistic/eslint-plugin-ts@2.6.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@stylistic/eslint-plugin-js': 2.6.0(eslint@8.57.0)
       '@types/eslint': 9.6.0
-      '@typescript-eslint/utils': 8.0.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/utils': 8.0.0(eslint@8.57.0)(typescript@5.7.2)
       eslint: 8.57.0
     transitivePeerDependencies:
       - supports-color
       - typescript
 
-  '@stylistic/eslint-plugin@2.6.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@stylistic/eslint-plugin@2.6.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@stylistic/eslint-plugin-js': 2.6.0(eslint@8.57.0)
       '@stylistic/eslint-plugin-jsx': 2.6.0(eslint@8.57.0)
-      '@stylistic/eslint-plugin-plus': 2.6.0(eslint@8.57.0)(typescript@5.5.4)
-      '@stylistic/eslint-plugin-ts': 2.6.0(eslint@8.57.0)(typescript@5.5.4)
+      '@stylistic/eslint-plugin-plus': 2.6.0(eslint@8.57.0)(typescript@5.7.2)
+      '@stylistic/eslint-plugin-ts': 2.6.0(eslint@8.57.0)(typescript@5.7.2)
       '@types/eslint': 9.6.0
       eslint: 8.57.0
     transitivePeerDependencies:
@@ -3491,34 +3487,34 @@ snapshots:
 
   '@types/unist@2.0.10': {}
 
-  '@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)':
+  '@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@eslint-community/regexpp': 4.11.0
-      '@typescript-eslint/parser': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/parser': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       '@typescript-eslint/scope-manager': 7.18.0
-      '@typescript-eslint/type-utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
-      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/type-utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
+      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       '@typescript-eslint/visitor-keys': 7.18.0
       eslint: 8.57.0
       graphemer: 1.4.0
       ignore: 5.3.1
       natural-compare: 1.4.0
-      ts-api-utils: 1.3.0(typescript@5.5.4)
+      ts-api-utils: 1.3.0(typescript@5.7.2)
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@typescript-eslint/scope-manager': 7.18.0
       '@typescript-eslint/types': 7.18.0
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.5.4)
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.7.2)
       '@typescript-eslint/visitor-keys': 7.18.0
       debug: 4.3.6
       eslint: 8.57.0
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - supports-color
 
@@ -3532,15 +3528,15 @@ snapshots:
       '@typescript-eslint/types': 8.0.0
       '@typescript-eslint/visitor-keys': 8.0.0
 
-  '@typescript-eslint/type-utils@7.18.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@typescript-eslint/type-utils@7.18.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.5.4)
-      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.7.2)
+      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       debug: 4.3.6
       eslint: 8.57.0
-      ts-api-utils: 1.3.0(typescript@5.5.4)
+      ts-api-utils: 1.3.0(typescript@5.7.2)
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - supports-color
 
@@ -3548,7 +3544,7 @@ snapshots:
 
   '@typescript-eslint/types@8.0.0': {}
 
-  '@typescript-eslint/typescript-estree@7.18.0(typescript@5.5.4)':
+  '@typescript-eslint/typescript-estree@7.18.0(typescript@5.7.2)':
     dependencies:
       '@typescript-eslint/types': 7.18.0
       '@typescript-eslint/visitor-keys': 7.18.0
@@ -3557,13 +3553,13 @@ snapshots:
       is-glob: 4.0.3
       minimatch: 9.0.5
       semver: 7.6.3
-      ts-api-utils: 1.3.0(typescript@5.5.4)
+      ts-api-utils: 1.3.0(typescript@5.7.2)
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/typescript-estree@8.0.0(typescript@5.5.4)':
+  '@typescript-eslint/typescript-estree@8.0.0(typescript@5.7.2)':
     dependencies:
       '@typescript-eslint/types': 8.0.0
       '@typescript-eslint/visitor-keys': 8.0.0
@@ -3572,29 +3568,29 @@ snapshots:
       is-glob: 4.0.3
       minimatch: 9.0.5
       semver: 7.6.3
-      ts-api-utils: 1.3.0(typescript@5.5.4)
+      ts-api-utils: 1.3.0(typescript@5.7.2)
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/utils@7.18.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@typescript-eslint/utils@7.18.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@eslint-community/eslint-utils': 4.4.0(eslint@8.57.0)
       '@typescript-eslint/scope-manager': 7.18.0
       '@typescript-eslint/types': 7.18.0
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.5.4)
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@5.7.2)
       eslint: 8.57.0
     transitivePeerDependencies:
       - supports-color
       - typescript
 
-  '@typescript-eslint/utils@8.0.0(eslint@8.57.0)(typescript@5.5.4)':
+  '@typescript-eslint/utils@8.0.0(eslint@8.57.0)(typescript@5.7.2)':
     dependencies:
       '@eslint-community/eslint-utils': 4.4.0(eslint@8.57.0)
       '@typescript-eslint/scope-manager': 8.0.0
       '@typescript-eslint/types': 8.0.0
-      '@typescript-eslint/typescript-estree': 8.0.0(typescript@5.5.4)
+      '@typescript-eslint/typescript-estree': 8.0.0(typescript@5.7.2)
       eslint: 8.57.0
     transitivePeerDependencies:
       - supports-color
@@ -3977,8 +3973,6 @@ snapshots:
     dependencies:
       css-tree: 2.2.1
 
-  date-fns@4.1.0: {}
-
   debug@3.2.7:
     dependencies:
       ms: 2.1.2
@@ -4183,9 +4177,9 @@ snapshots:
       eslint: 8.57.0
       ignore: 5.3.1
 
-  eslint-plugin-import-x@0.5.3(eslint@8.57.0)(typescript@5.5.4):
+  eslint-plugin-import-x@0.5.3(eslint@8.57.0)(typescript@5.7.2):
     dependencies:
-      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       debug: 4.3.6
       doctrine: 3.0.0
       eslint: 8.57.0
@@ -4249,9 +4243,9 @@ snapshots:
 
   eslint-plugin-no-only-tests@3.1.0: {}
 
-  eslint-plugin-perfectionist@2.11.0(eslint@8.57.0)(typescript@5.5.4)(vue-eslint-parser@9.4.3(eslint@8.57.0)):
+  eslint-plugin-perfectionist@2.11.0(eslint@8.57.0)(typescript@5.7.2)(vue-eslint-parser@9.4.3(eslint@8.57.0)):
     dependencies:
-      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       eslint: 8.57.0
       minimatch: 9.0.5
       natural-compare-lite: 1.4.0
@@ -4304,19 +4298,19 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  eslint-plugin-unused-imports@3.2.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0):
+  eslint-plugin-unused-imports@3.2.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0):
     dependencies:
       eslint: 8.57.0
       eslint-rule-composer: 0.3.0
     optionalDependencies:
-      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)
 
-  eslint-plugin-vitest@0.5.4(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)(vitest@2.1.6):
+  eslint-plugin-vitest@0.5.4(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)(vitest@2.1.6):
     dependencies:
-      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/utils': 7.18.0(eslint@8.57.0)(typescript@5.7.2)
       eslint: 8.57.0
     optionalDependencies:
-      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0)(typescript@5.5.4)
+      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.0)(typescript@5.7.2))(eslint@8.57.0)(typescript@5.7.2)
       vitest: 2.1.6
     transitivePeerDependencies:
       - supports-color
@@ -4821,7 +4815,7 @@ snapshots:
 
   mkdirp@1.0.4: {}
 
-  mkdist@1.5.4(typescript@5.5.4):
+  mkdist@1.5.4(typescript@5.7.2):
     dependencies:
       autoprefixer: 10.4.19(postcss@8.4.40)
       citty: 0.1.6
@@ -4837,7 +4831,7 @@ snapshots:
       postcss-nested: 6.2.0(postcss@8.4.40)
       semver: 7.6.3
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
 
   mlly@1.7.1:
     dependencies:
@@ -5234,11 +5228,11 @@ snapshots:
     dependencies:
       glob: 7.2.3
 
-  rollup-plugin-dts@6.1.1(rollup@3.29.4)(typescript@5.5.4):
+  rollup-plugin-dts@6.1.1(rollup@3.29.4)(typescript@5.7.2):
     dependencies:
       magic-string: 0.30.11
       rollup: 3.29.4
-      typescript: 5.5.4
+      typescript: 5.7.2
     optionalDependencies:
       '@babel/code-frame': 7.24.7
 
@@ -5424,9 +5418,9 @@ snapshots:
     dependencies:
       eslint-visitor-keys: 3.4.3
 
-  ts-api-utils@1.3.0(typescript@5.5.4):
+  ts-api-utils@1.3.0(typescript@5.7.2):
     dependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
 
   tslib@2.6.3: {}
 
@@ -5442,11 +5436,11 @@ snapshots:
 
   type-fest@0.8.1: {}
 
-  typescript@5.5.4: {}
+  typescript@5.7.2: {}
 
   ufo@1.5.4: {}
 
-  unbuild@2.0.0(typescript@5.5.4):
+  unbuild@2.0.0(typescript@5.7.2):
     dependencies:
       '@rollup/plugin-alias': 5.1.0(rollup@3.29.4)
       '@rollup/plugin-commonjs': 25.0.8(rollup@3.29.4)
@@ -5463,17 +5457,17 @@ snapshots:
       hookable: 5.5.3
       jiti: 1.21.6
       magic-string: 0.30.11
-      mkdist: 1.5.4(typescript@5.5.4)
+      mkdist: 1.5.4(typescript@5.7.2)
       mlly: 1.7.1
       pathe: 1.1.2
       pkg-types: 1.1.3
       pretty-bytes: 6.1.1
       rollup: 3.29.4
-      rollup-plugin-dts: 6.1.1(rollup@3.29.4)(typescript@5.5.4)
+      rollup-plugin-dts: 6.1.1(rollup@3.29.4)(typescript@5.7.2)
       scule: 1.3.0
       untyped: 1.4.2
     optionalDependencies:
-      typescript: 5.5.4
+      typescript: 5.7.2
     transitivePeerDependencies:
       - sass
       - supports-color
diff --git a/src/logger.ts b/src/logger.ts
index e580ed4..8869b0d 100644
--- a/src/logger.ts
+++ b/src/logger.ts
@@ -24,7 +24,6 @@ const GLOBAL_CONFIG = {
   configured: false,
   logLevel: LogLevel.Debug,
   format: Format.JSON,
-  // eslint-disable-next-line ts/no-unsafe-assignment
   timeFormat: DEFAULT_TIME_FORMAT,
 }
 
@@ -91,7 +90,6 @@ export function setGlobalTimeFormat(timeFormat: string): void {
 }
 
 export function getGlobalTimeFormat(): string {
-  // eslint-disable-next-line ts/no-unsafe-return
   return GLOBAL_CONFIG.timeFormat
 }
 
@@ -241,7 +239,7 @@ export function createLogg(context: string): Logger {
     logLevel: LogLevel.Debug,
     format: Format.JSON,
     shouldUseGlobalConfig: false,
-    // eslint-disable-next-line ts/no-unsafe-assignment
+
     timeFormat: DEFAULT_TIME_FORMAT,
     useGlobalConfig: (): Logger => {
       logObj.shouldUseGlobalConfig = true
diff --git a/src/types.ts b/src/types.ts
index 25110e0..9aba431 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -20,7 +20,7 @@ export enum Format {
 }
 
 export interface Log {
-  '@timestamp': string
+  '@timestamp': number
   '@localetime': string
   'level': LogLevelString
   'fields': {
diff --git a/src/utils.ts b/src/utils.ts
index 558b527..9da44cf 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,4 @@
 import pc from 'picocolors'
-import { format } from 'date-fns'
 import { DEFAULT_TIME_FORMAT, logLevelStringToLogLevelMap, logLevelToColorMap } from './constants'
 import type { Log, LogLevelString } from './types'
 import { LogLevel } from './types'
@@ -31,7 +30,6 @@ export function newLog(
   context: string,
   fields: Record<string, any>,
   message: string,
-  timeFormat: string = DEFAULT_TIME_FORMAT,
   ...optionalParams: [...any, string?]
 ): Log {
   let fieldsObj: { context?: string, [key: string]: any } = { context: '' }
@@ -53,9 +51,8 @@ export function newLog(
   }
 
   const raw: Log = {
-    '@timestamp': new Date().toISOString(),
-    // eslint-disable-next-line ts/no-unsafe-assignment, ts/no-unsafe-call
-    '@localetime': format(new Date(), timeFormat),
+    '@timestamp': Date.now(),
+    '@localetime': new Date().toISOString(),
     'level': logLevel,
     'fields': fieldsObj,
     'message': messageString,