fix music command and add dockerfile

src/main/kotlin/cn/rtast/fancybot/commands/MusicCommand.kt

@@ -8,30 +8,73 @@
 package cn.rtast.fancybot.commands
 
 import cn.rtast.fancybot.entity.Search
+import cn.rtast.fancybot.entity.SearchedResult
 import cn.rtast.fancybot.entity.SongUrl
 import cn.rtast.fancybot.util.Http
 import cn.rtast.rob.entity.GroupMessage
 import cn.rtast.rob.util.BaseCommand
 import cn.rtast.rob.util.ob.OBMessage
+import java.time.Instant
 
 class MusicCommand : BaseCommand() {
-    override val commandName = "/点歌"
+    override val commandName = "/music"
 
-    override fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
-        val keyword = args.joinToString(" ")
-        Http.getAsync<Search>("https://music.api.yhdzz.cn/search?keywords=$keyword") {
-            val name = it!!.result.songs.first().name
-            val id = it.result.songs.first().id
-            val artists = it.result.songs.first().artists.joinToString(", ") { it.name }
-            Http.getAsync<SongUrl>("https://music.api.yhdzz.cn/song/url?id=$id") { songUrl ->
-                listener.sendGroupMessage(
-                    message.groupId,
-                    "[CQ:music," +
-                            "type=custom," +
-                            "url=https://music.163.com/#/song?id=$id," +
-                            "audio=${songUrl?.data?.first()?.url}," +
-                            "title=《$name》-- $artists]\n"
+    private val searchedResult = mutableMapOf<Long, List<SearchedResult>>()
+
+    override suspend fun executeGroup(listener: OBMessage, message: GroupMessage, args: List<String>) {
+        searchedResult.forEach { (key, results) ->
+            val validResults = results.filter { result ->
+                Instant.now().epochSecond - result.timestamp <= 30
+            }
+            if (validResults.isEmpty()) {
+                searchedResult.remove(key)
+            } else {
+                searchedResult[key] = validResults
+            }
+        }
+        val method = args.first()
+        when (method) {
+            "s", "ss", "搜索" -> {
+                if (searchedResult.containsKey(message.sender.userId)) {
+                    searchedResult.remove(message.sender.userId)
+                    listener.sendGroupMessage(
+                        message.groupId,
+                        "你上次的搜索结果还没用呢, 已经帮你把上次的搜索结果清除掉啦~"
+                    )
+                }
+                val keyword = args.drop(1).joinToString(" ")
+                val result = Http.get<Search>(
+                    "https://music.api.yhdzz.cn/search",
+                    mapOf("keywords" to keyword),
                 )
+                val tempResults = mutableListOf<SearchedResult>()
+                result.result.songs.asSequence().take(5).forEach {
+                    val artists = it.artists.joinToString(", ") { it.name }
+                    tempResults.add(SearchedResult(it.id, it.name, artists, Instant.now().epochSecond))
+                }
+                searchedResult[message.sender.userId] = tempResults
+                val stringResult = StringBuilder("搜索结果如下:\n")
+                tempResults.forEachIndexed { index, searchedResult ->
+                    stringResult.append("| $index | 《${searchedResult.name}》-- ${searchedResult.artists}\n")
+                }
+                stringResult.append("输入/music p <序号> 播放\n你有30秒的时间进行操作")
+                listener.sendGroupMessage(message.groupId, stringResult.toString())
+            }
+
+            "p", "pp", "播放" -> {
+                try {
+                    val index = args.drop(1).last().toInt()
+                    val searchedResultGet = searchedResult[message.sender.userId]!!
+                    val finalResult = searchedResultGet[index]
+                    val url =
+                        Http.get<SongUrl>("https://music.api.yhdzz.cn/song/url?id=${finalResult.id}").data.first().url
+                    val cqCode = "[CQ:music,type=custom,url=https://music.163.com/#/song?id=${finalResult.id}," +
+                            "audio=$url,title=《${finalResult.name}》-- ${finalResult.artists}]"
+                    listener.sendGroupMessage(message.groupId, cqCode)
+                } catch (_: Exception) {
+                    listener.sendGroupMessage(message.groupId, "输入有误请重新搜索本次搜索结果已清除")
+                }
+                searchedResult.remove(message.sender.userId)
             }
         }
     }