From cf446ac53ce557d00ac1422d48f61e48bcaa37d8 Mon Sep 17 00:00:00 2001
From: Aya Morisawa <AyaMorisawa4869@gmail.com>
Date: Thu, 29 Dec 2016 17:36:03 +0900
Subject: [PATCH] Implement logger

log-cool is no longer with Misskey
---
 package.json                    |  1 -
 src/index.ts                    | 24 ++++++++++++------------
 src/utils/check-dependencies.ts |  8 ++++----
 src/utils/logger.ts             | 16 ++++++++++++++++
 4 files changed, 32 insertions(+), 17 deletions(-)
 create mode 100644 src/utils/logger.ts

diff --git a/package.json b/package.json
index 1728ce917..038e0100c 100644
--- a/package.json
+++ b/package.json
@@ -94,7 +94,6 @@
     "inquirer": "2.0.0",
     "js-yaml": "3.7.0",
     "livescript": "1.5.0",
-    "log-cool": "1.1.0",
     "mime-types": "2.1.13",
     "mongodb": "2.2.16",
     "ms": "0.7.2",
diff --git a/src/index.ts b/src/index.ts
index b80b2da57..f22364a99 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -11,7 +11,7 @@ import * as fs from 'fs';
 import * as os from 'os';
 import * as cluster from 'cluster';
 const prominence = require('prominence');
-import { logInfo, logDone, logWarn, logFailed } from 'log-cool';
+import { log } from './utils/logger';
 import * as chalk from 'chalk';
 const git = require('git-last-commit');
 const portUsed = require('tcp-port-used');
@@ -151,41 +151,41 @@ async function init(): Promise<State> {
 	console.log('\nInitializing...\n');
 
 	if (IS_DEBUG) {
-		logWarn('It is not in the Production mode. Do not use in the Production environment.');
+		log('Warn', 'It is not in the Production mode. Do not use in the Production environment.');
 	}
 
-	logInfo(`environment: ${env}`);
+	log('Info', `environment: ${env}`);
 
 	// Get machine info
 	const totalmem = (os.totalmem() / 1024 / 1024 / 1024).toFixed(1);
 	const freemem = (os.freemem() / 1024 / 1024 / 1024).toFixed(1);
-	logInfo(`MACHINE: ${os.hostname()}`);
-	logInfo(`MACHINE: CPU: ${os.cpus().length}core`);
-	logInfo(`MACHINE: MEM: ${totalmem}GB (available: ${freemem}GB)`);
+	log('Info', `MACHINE: ${os.hostname()}`);
+	log('Info', `MACHINE: CPU: ${os.cpus().length}core`);
+	log('Info', `MACHINE: MEM: ${totalmem}GB (available: ${freemem}GB)`);
 
 	if (!fs.existsSync(`${__dirname}/../.config/config.yml`)) {
-		logFailed('Configuration not found');
+		log('Error', 'Configuration not found');
 		return State.failed;
 	}
 
-	logDone('Success to load configuration');
-	logInfo(`maintainer: ${config.maintainer}`);
+	log('Info', 'Success to load configuration');
+	log('Info', `maintainer: ${config.maintainer}`);
 
 	checkDependencies();
 
 	// Check if a port is being used
 	if (await portUsed.check(config.port)) {
-		logFailed(`Port: ${config.port} is already used!`);
+		log('Error', `Port: ${config.port} is already used!`);
 		return State.failed;
 	}
 
 	// Try to connect to MongoDB
 	try {
 		const db = await initdb(config);
-		logDone('Success to connect to MongoDB');
+		log('Info', 'Success to connect to MongoDB');
 		db.close();
 	} catch (e) {
-		logFailed(`MongoDB: ${e}`);
+		log('Error', `MongoDB: ${e}`);
 		return State.failed;
 	}
 
diff --git a/src/utils/check-dependencies.ts b/src/utils/check-dependencies.ts
index 7bcb87a68..364c24581 100644
--- a/src/utils/check-dependencies.ts
+++ b/src/utils/check-dependencies.ts
@@ -1,4 +1,4 @@
-import {logInfo, logDone, logWarn} from 'log-cool';
+import { log } from './logger';
 import {exec} from 'shelljs';
 
 export default function(): void {
@@ -6,7 +6,7 @@ export default function(): void {
 	checkDependency('npm', 'npm -v', x => x.match(/^(.*)\r?\n$/)[1]);
 	checkDependency('MongoDB', 'mongo --version', x => x.match(/^MongoDB shell version: (.*)\r?\n$/)[1]);
 	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/)[1]);
-	logDone('Successfully checked external dependencies');
+	log('Info', 'Successfully checked external dependencies');
 }
 
 function checkDependency(serviceName: string, command: string, transform: (x: string) => string): void {
@@ -16,8 +16,8 @@ function checkDependency(serviceName: string, command: string, transform: (x: st
 	};
 	const x = exec(command, { silent: true }) as any;
 	if (x.code === code.success) {
-		logInfo(`DEPS: ${serviceName} ${transform(x.stdout)}`);
+		log('Info', `DEPS: ${serviceName} ${transform(x.stdout)}`);
 	} else if (x.code === code.notFound) {
-		logWarn(`Unable to find ${serviceName}`);
+		log('Warn', `Unable to find ${serviceName}`);
 	}
 }
diff --git a/src/utils/logger.ts b/src/utils/logger.ts
new file mode 100644
index 000000000..01c3fdc76
--- /dev/null
+++ b/src/utils/logger.ts
@@ -0,0 +1,16 @@
+import * as chalk from 'chalk';
+
+export type LogLevel = 'Error' | 'Warn' | 'Info';
+
+function toLevelColor(level: LogLevel): chalk.ChalkStyle {
+	switch (level) {
+		case 'Error': return chalk.red;
+		case 'Warn': return chalk.yellow;
+		case 'Info': return chalk.blue;
+	}
+}
+
+export function log(level: LogLevel, message: string): void {
+	let color = toLevelColor(level);
+	console.log(`[${color.bold(level.toUpperCase())}] ${message}`);
+}