# SRC_ROOT is the top of the source tree.
SRC_ROOT := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))

ALL_SRC := $(shell find . -name '*.go' \
                                -not -path '*/third_party/*' \
                                -type f | sort)

# All source code and documents. Used in spell check.
ALL_SRC_AND_DOC := $(shell find . \( -name "*.md" -o -name "*.go" -o -name "*.yaml" \) \
                                -type f | sort)

# ALL_PKGS is used with 'go cover'
ALL_PKGS := $(shell go list $(sort $(dir $(ALL_SRC))) 2>/dev/null)

# build tags required by any component should be defined as an independent variables and later added to GO_BUILD_TAGS below
GO_BUILD_TAGS=""
GOTEST_OPT?= -race -timeout 300s --tags=$(GO_BUILD_TAGS)
GOTEST_INTEGRATION_OPT?= -race -timeout 60s
GOTEST_OPT_WITH_COVERAGE = $(GOTEST_OPT) -coverprofile=coverage.txt -covermode=atomic
GOTEST_OPT_WITH_INTEGRATION=$(GOTEST_INTEGRATION_OPT) -v -tags=integration,$(GO_BUILD_TAGS) -run=Integration -coverprofile=integration-coverage.txt -covermode=atomic
GOTEST=go test
GOOS=$(shell go env GOOS)
GOARCH=$(shell go env GOARCH)
ADDLICENCESE= addlicense
MISSPELL=misspell -error
MISSPELL_CORRECTION=misspell -w
LINT=golangci-lint
IMPI=impi
# BUILD_TYPE should be one of (dev, release).
BUILD_TYPE?=release

all-pkgs:
	@echo $(ALL_PKGS) | tr ' ' '\n' | sort

all-srcs:
	@echo $(ALL_SRC) | tr ' ' '\n' | sort

.DEFAULT_GOAL := common

.PHONY: common
common: checklicense checkdoc impi lint misspell

.PHONY: test
test:
	$(GOTEST) $(GOTEST_OPT) ./...

.PHONY: do-unit-tests-with-cover
do-unit-tests-with-cover:
	@echo "running go unit test ./... + coverage in `pwd`"
	@$(GOTEST) $(GOTEST_OPT_WITH_COVERAGE) ./...
	go tool cover -html=coverage.txt -o coverage.html

.PHONY: do-integration-tests-with-cover
do-integration-tests-with-cover:
	@echo "running go integration test ./... + coverage in `pwd`"
	@$(GOTEST) $(GOTEST_OPT_WITH_INTEGRATION) ./...
	@if [ -e integration-coverage.txt ]; then \
  		go tool cover -html=integration-coverage.txt -o integration-coverage.html; \
  	fi

.PHONY: benchmark
benchmark:
	$(GOTEST) -bench=. -run=notests --tags=$(GO_BUILD_TAGS) $(ALL_PKGS)

.PHONY: addlicense
addlicense:
	@ADDLICENCESEOUT=`$(ADDLICENCESE) -y "" -c 'The OpenTelemetry Authors' $(ALL_SRC) 2>&1`; \
		if [ "$$ADDLICENCESEOUT" ]; then \
			echo "$(ADDLICENCESE) FAILED => add License errors:\n"; \
			echo "$$ADDLICENCESEOUT\n"; \
			exit 1; \
		else \
			echo "Add License finished successfully"; \
		fi

.PHONY: checklicense
checklicense:
	@ADDLICENCESEOUT=`$(ADDLICENCESE) -check $(ALL_SRC) 2>&1`; \
		if [ "$$ADDLICENCESEOUT" ]; then \
			echo "$(ADDLICENCESE) FAILED => add License errors:\n"; \
			echo "$$ADDLICENCESEOUT\n"; \
			echo "Use 'make addlicense' to fix this."; \
			exit 1; \
		else \
			echo "Check License finished successfully"; \
		fi

.PHONY: fmt
fmt:
	gofmt  -w -s ./
	goimports -w  -local github.com/open-telemetry/opentelemetry-collector-contrib ./

.PHONY: lint
lint:
	$(LINT) run --allow-parallel-runners

.PHONY: misspell
misspell:
	$(MISSPELL) $(ALL_SRC_AND_DOC)

.PHONY: misspell-correction
misspell-correction:
	$(MISSPELL_CORRECTION) $(ALL_SRC_AND_DOC)

.PHONY: impi
impi:
	@$(IMPI) --local github.com/open-telemetry/opentelemetry-collector-contrib --scheme stdThirdPartyLocal ./...

.PHONY: dep
dep:
	go mod download