fix(core): 修复启动模拟器前不会自动检测是否已启动的问题

kotonebot/backend/bot.py

@@ -187,15 +187,18 @@ class KotoneBot:
             if not os.path.exists(exe):
                 user.error('「模拟器 exe 文件路径」对应的文件不存在！请检查路径是否正确。')
                 raise FileNotFoundError(f'Emulator executable not found: {exe}')
-            logger.info('Starting custom backend...')
             self.backend_instance = create_custom(
                 adb_ip=config.backend.adb_ip,
                 adb_port=config.backend.adb_port,
                 exe_path=exe
             )
-            self.backend_instance.start()
-            logger.info('Waiting for custom backend to be available...')
-            self.backend_instance.wait_available()
+            if not self.backend_instance.running():
+                logger.info('Starting custom backend...')
+                self.backend_instance.start()
+                logger.info('Waiting for custom backend to be available...')
+                self.backend_instance.wait_available()
+            else:
+                logger.info('Custom backend "%s" already running.', self.backend_instance)
 
     def run(self, tasks: list[Task], *, by_priority: bool = True):
         """

kotonebot/client/host/custom.py

@@ -1,3 +1,4 @@
+import os
 import subprocess
 from psutil import process_iter
 from .protocol import HostProtocol, Instance
@@ -35,6 +36,21 @@ class CustomInstance(Instance):
         self.process.wait()
         self.process = None
 
+    @override
+    def running(self) -> bool:
+        if self.process is not None:
+            return True
+        else:
+            process_name = os.path.basename(self.exe_path)
+            p = next((proc for proc in process_iter() if proc.name() == process_name), None)
+            if p:
+                return True
+            else:
+                return False
+            
+    def __repr__(self) -> str:
+        return f'CustomInstance(#{self.id}# at "{self.exe_path}" with {self.adb_ip}:{self.adb_port})'
+
 def _type_check(ins: Instance) -> CustomInstance:
     if not isinstance(ins, CustomInstance):
         raise ValueError(f'Instance {ins} is not a CustomInstance')

kotonebot/client/host/protocol.py

@@ -37,8 +37,14 @@ class Instance:
     adb_port: int
     adb_ip: str = '127.0.0.1'
 
-    def start(self): ...
-    def stop(self): ...
+    def start(self):
+        raise NotImplementedError()
+    
+    def stop(self):
+        raise NotImplementedError()
+
+    def running(self) -> bool:
+        raise NotImplementedError()
 
     def wait_available(self, timeout: float = 180):
         logger.info('Starting to wait for emulator %s(127.0.0.1:%d) to be available...', self.name, self.adb_port)