chore: introduce logger and save log into file

src/main/kotlin/cn/rtast/fancybot/FancyBot.kt

@@ -10,10 +10,7 @@ package cn.rtast.fancybot
 import cn.rtast.fancybot.commands.misc.ScanQRCodeCommand
 import cn.rtast.fancybot.commands.parse.*
 import cn.rtast.fancybot.enums.WSType
-import cn.rtast.fancybot.util.initCommandAndItem
-import cn.rtast.fancybot.util.initDatabase
-import cn.rtast.fancybot.util.initFilesDir
-import cn.rtast.fancybot.util.initSetuIndex
+import cn.rtast.fancybot.util.*
 import cn.rtast.rob.ROneBotFactory
 import cn.rtast.rob.entity.*
 import cn.rtast.rob.entity.lagrange.FileEvent
@@ -30,6 +27,7 @@ import java.net.URI
 
 class FancyBot : OneBotListener {
 
+    private val logger = Logger.getLogger<FancyBot>()
     private val coroutineScope = CoroutineScope(Dispatchers.IO)
     private val githubRegex = Regex("""github\.com/([^/]+)/([^/]+)""")
 
@@ -43,7 +41,8 @@ class FancyBot : OneBotListener {
         val msg = message.rawMessage
         val groupId = message.groupId
         val messageId = message.messageId
-        println("$sender($senderId: $groupId >>> $messageId): $msg")
+        logger.info("$sender($senderId: $groupId >>> $messageId): $msg")
+        logger.trace("$sender($senderId: $groupId >>> $messageId: $json")
 
         if (message.message.any { it.type == ArrayMessageType.face && it.data.id.toString() == "419" }) {
             message.reply("你发牛魔的火车呢, 我直接就是打断")

src/main/kotlin/cn/rtast/fancybot/commands/parse/AsciiArtCommand.kt

@@ -8,6 +8,7 @@
 package cn.rtast.fancybot.commands.parse
 
 import cn.rtast.fancybot.annotations.CommandDescription
+import cn.rtast.fancybot.util.Logger
 import cn.rtast.fancybot.util.makeGif
 import cn.rtast.fancybot.util.str.encodeToBase64
 import cn.rtast.fancybot.util.toByteArray
@@ -33,6 +34,7 @@ class AsciiArtCommand : BaseCommand() {
     companion object {
         private const val FONT_SIZE = 12
         private val font = Font("Monospaced", Font.PLAIN, FONT_SIZE)
+        private val logger = Logger.getLogger<AsciiArtCommand>()
         val waitingList = mutableListOf<Long>()
 
         private fun BufferedImage.convertToAscii(): String {
@@ -106,7 +108,7 @@ class AsciiArtCommand : BaseCommand() {
                         val msg = MessageChain.Builder().addImage(imageBase64, true).build()
                         message.reply(msg)
                     } else {
-                        println("Making gif ascii art, frames: ${decoder.frameCount}")
+                        logger.info("制作GIF Ascii art中, 总帧数: ${decoder.frameCount}")
                         val frames = (0 until decoder.frameCount).map { decoder.getFrame(it) }
                         val asciiFrames = mutableListOf<BufferedImage>()
                         val width = frames.first().width
@@ -114,11 +116,12 @@ class AsciiArtCommand : BaseCommand() {
                         frames.forEach { asciiFrames.add(it.convertToAscii().saveAsciiArtToImage(width, height)) }
                         val gifBytes = decoder.makeGif(asciiFrames)
                         val gifBase64 = gifBytes.encodeToBase64()
-                        println(gifBase64)
+                        logger.info("处理后的图片大小: ${gifBytes.size}字节, base64大小: ${gifBase64.length * 2}字节")
                         message.reply(MessageChain.Builder().addImage(gifBase64, true).build())
                     }
                 } catch (_: Exception) {
                     message.reply("处理GIF失败")
+                    logger.info("gif处理失败")
                 }
             } else {
                 message.reply("回复错误已取消本次操作")

src/main/kotlin/cn/rtast/fancybot/util/Logger.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright © 2024 RTAkland
+ * Author: RTAkland
+ * Date: 2024/10/7
+ */
+
+
+package cn.rtast.fancybot.util
+
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import org.slf4j.event.Level
+
+object Logger {
+    inline fun <reified T> getLogger(): Logger {
+        return LoggerFactory.getLogger(T::class.simpleName).also { it.atLevel(Level.INFO) }
+    }
+}

src/main/kotlin/cn/rtast/fancybot/util/Misc.kt

@@ -31,7 +31,8 @@ fun initCommandAndItem(rob: ROneBotFactory) {
 }
 
 fun initFilesDir() {
-    File("./$ROOT_PATH/caches/images").also { it.mkdirs() }
+    File("$ROOT_PATH/caches/images").also { it.mkdirs() }
+    File("$ROOT_PATH/logs").also { it.mkdirs() }
 }
 
 fun initSetuIndex() {