add grpc support

Makefile

@@ -1,14 +1,23 @@
 CMD_NAME := ambient-local-exporter
 
-.PHONY: all test build docker install clean
+.PHONY: all test build docker install clean proto check_protoc
 
 VERSION ?= development # Default to "development" if VERSION is not set
+APIVERSION := v1alpha1
+API_DIR := api/$(APIVERSION)
+PROTO_DIRS := $(wildcard proto/*)
 PLATFORMS := linux/amd64 linux/arm64 darwin/amd64 darwin/arm64
 OUTPUT_DIR := bin
 VER_PKG := gitea.libretechconsulting.com/rmcguire/go-app/pkg/config.Version
 DOCKER_IMG := gitea.libretechconsulting.com/rmcguire/ambient-local-exporter
 
-all: test build docker
+all: proto test build docker
+
+proto: check_protoc $(API_DIR)
+	protoc --proto_path=proto \
+		--go_out=$(API_DIR) --go_opt=paths=source_relative \
+		--go-grpc_out=$(API_DIR) --go-grpc_opt=paths=source_relative \
+		$(foreach dir, $(PROTO_DIRS), $(wildcard $(dir)/*.proto))
 
 test:
 	go test -v ./...
@@ -37,3 +46,13 @@ install:
 
 clean:
 	rm -rf bin/${CMD_NAME}
+
+check_protoc:
+	@if ! command -v protoc-gen-go > /dev/null; then \
+		echo "Error: protoc-gen-go not found in PATH"; \
+		exit 1; \
+	fi
+	@if ! command -v protoc-gen-go-grpc > /dev/null; then \
+		echo "Error: protoc-gen-go-grpc not found in PATH"; \
+		exit 1; \
+	fi