eventbus for sending events from backend to frontend. stubbing out a block controller and blockservice

pkg/service/blockservice/blockservice.go

@@ -0,0 +1,25 @@
+// Copyright 2024, Command Line Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package blockservice
+
+import (
+	"fmt"
+
+	"github.com/wavetermdev/thenextwave/pkg/blockcontroller"
+)
+
+type BlockService struct{}
+
+func (bs *BlockService) SendCommand(blockId string, cmdMap map[string]any) error {
+	bc := blockcontroller.GetBlockController(blockId)
+	if bc == nil {
+		return fmt.Errorf("block controller not found for block %q", blockId)
+	}
+	cmd, err := blockcontroller.ParseCmdMap(cmdMap)
+	if err != nil {
+		return fmt.Errorf("error parsing command map: %w", err)
+	}
+	bc.InputCh <- cmd
+	return nil
+}