GO = go
BIN = bin/aoc

.PHONY: build test clean new

build:
	@mkdir -p $(dir $(BIN))
	@$(GO) build -o $(BIN) ./cmd/aoc

test:
	@$(GO) test ./internal/...

clean:
	@rm -f $(BIN)

new:
	@if [ -z "$(filter-out $@,$(MAKECMDGOALS))" ]; then \
		echo "Usage: make new 2020D9"; \
		exit 1; \
	fi
	@DAY_ARG=$$(echo $(filter-out $@,$(MAKECMDGOALS)) | awk '{print $$1}'); \
	YEAR=$$(echo $$DAY_ARG | sed 's/D.*//'); \
	DAY_NUM=$$(echo $$DAY_ARG | sed 's/.*D//'); \
	DAY_NAME=$$(case $$DAY_NUM in \
		1) echo "One" ;; \
		2) echo "Two" ;; \
		3) echo "Three" ;; \
		4) echo "Four" ;; \
		5) echo "Five" ;; \
		6) echo "Six" ;; \
		7) echo "Seven" ;; \
		8) echo "Eight" ;; \
		9) echo "Nine" ;; \
		10) echo "Ten" ;; \
		11) echo "Eleven" ;; \
		12) echo "Twelve" ;; \
		13) echo "Thirteen" ;; \
		14) echo "Fourteen" ;; \
		15) echo "Fifteen" ;; \
		16) echo "Sixteen" ;; \
		17) echo "Seventeen" ;; \
		18) echo "Eighteen" ;; \
		19) echo "Nineteen" ;; \
		20) echo "Twenty" ;; \
		21) echo "TwentyOne" ;; \
		22) echo "TwentyTwo" ;; \
		23) echo "TwentyThree" ;; \
		24) echo "TwentyFour" ;; \
		25) echo "TwentyFive" ;; \
		*) echo "Unknown" ;; \
	esac); \
	mkdir -p internal/$$YEAR/Day$$DAY_NAME; \
	mkdir -p internal/data/$$YEAR/Day$$DAY_NAME; \
	touch internal/$$YEAR/Day$$DAY_NAME/code.go; \
	touch internal/$$YEAR/Day$$DAY_NAME/code_test.go; \
	touch internal/data/$$YEAR/Day$$DAY_NAME/input.txt; \
	echo "Created files for $$DAY_ARG"

%:
	@: