config ?= release

PONYC ?= ponyc
PACKAGE := ponycheck
GET_DEPENDENCIES_WITH := corral fetch
CLEAN_DEPENDENCIES_WITH := corral clean
COMPILE_WITH := corral run -- $(PONYC)

BUILD_DIR ?= build/$(config)
SRC_DIR ?= $(PACKAGE)
EXAMPLES_DIR := examples
tests_binary := $(BUILD_DIR)/$(PACKAGE)
docs_dir := build/$(PACKAGE)-docs

ifdef config
	ifeq (,$(filter $(config),debug release))
		$(error Unknown configuration "$(config)")
	endif
endif

ifeq ($(config),release)
	PONYC = $(COMPILE_WITH)
else
	PONYC = $(COMPILE_WITH) --debug
endif

SOURCE_FILES := $(shell find $(SRC_DIR) -name *.pony)
EXAMPLES_SOURCE_FILES := $(shell find $(EXAMPLES_DIR) -name *.pony)
EXAMPLES_BINARY := $(BUILD_DIR)/examples

test: unit-tests build-examples run-examples

unit-tests: $(tests_binary)
	$^ --exclude=integration --sequential

$(tests_binary): $(SOURCE_FILES) | $(BUILD_DIR)
	$(GET_DEPENDENCIES_WITH)
	$(PONYC) -o $(BUILD_DIR) $(SRC_DIR)

build-examples: $(EXAMPLES_BINARY)

run-examples: $(EXAMPLES_BINARY)
	$^

$(EXAMPLES_BINARY): $(BUILD_DIR)/%: $(SOURCE_FILES) $(EXAMPLES_SOURCE_FILES) | $(BUILD_DIR)
	$(GET_DEPENDENCIES_WITH)
	$(PONYC) -o $(BUILD_DIR) -b examples $(EXAMPLES_DIR)

clean:
	$(CLEAN_DEPENDENCIES_WITH)
	rm -rf $(BUILD_DIR)

$(docs_dir): $(SOURCE_FILES)
	rm -rf $(docs_dir)
	$(GET_DEPENDENCIES_WITH)
	$(PONYC) --docs-public --pass=docs --output build $(SRC_DIR)

docs: $(docs_dir)

.coverage:
	mkdir -p .coverage

coverage: .coverage $(tests_binary)
	kcov --include-pattern="$(SRC_DIR)" --exclude-pattern="*/test/*.pony,*/_test.pony" .coverage $(tests_binary)

TAGS:
	ctags --recurse=yes $(SRC_DIR)

all: test

$(BUILD_DIR):
	mkdir -p $(BUILD_DIR)

.PHONY: all build-examples clean TAGS test