.PHONY: help

#################################################################################
# GLOBALS                                                                       #
#################################################################################

PROJECT_DIR := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
PROJECT_NAME = microrag

SRC_PATH = src/microrag
LINT_PATHS = src tests

VENV := $(or ${VIRTUAL_ENV},${VIRTUAL_ENV},.venv)
PYTHON = $(VENV)/bin/python
PIP = $(VENV)/bin/pip
UV = $(VENV)/bin/uv

PYTHON_VERSION = 3.12
PYTHONPATH := $(or ${PYTHONPATH},${PYTHONPATH},.)

export ${PYTHONPATH}

#######################
### System commands
#######################
.PHONY: sys/changelog
## Generating changelog file
sys/changelog:
	@echo "Generating CHANGELOG.md..."
	@echo "" > CHANGELOG.md;
	@previous_tag=0; \
	for current_tag in $$(git tag --sort=-creatordate | grep '^v'); do \
		if [ "$$previous_tag" != 0 ]; then \
			tag_date=$$(git log -1 --pretty=format:'%ad' --date=short $${previous_tag}); \
			printf "\n## $${previous_tag} ($${tag_date})\n\n" >> CHANGELOG.md; \
			git log $${current_tag}...$${previous_tag} --pretty=format:'*  %s [%an]' --reverse | grep -v Merge >> CHANGELOG.md; \
			printf "\n" >> CHANGELOG.md; \
		fi; \
		previous_tag=$${current_tag}; \
	done
	@echo "CHANGELOG.md generated successfully."

.PHONY: sys/tag
## Create and push tag
sys/tag:
	@read -p "Enter tag version (e.g., 1.0.0): " TAG; \
	if [[ $$TAG =~ ^[0-9]+\.[0-9]+\.[0-9]+$$ ]]; then \
		git tag -a v$$TAG -m v$$TAG; \
		git push origin v$$TAG; \
		echo "Tag v$$TAG created and pushed successfully."; \
	else \
		echo "Invalid tag format. Please use X.Y.Z (e.g., 1.0.0)"; \
		exit 1; \
	fi

#######################
### Virtual environment
#######################

.PHONY: venv/create
venv/create: ## Create virtual environment
	@echo "create virtual environment..."
	python -m venv ${VENV}
	@echo "done"
	@echo

.PHONY: venv/install/main
## Install main dependencies
venv/install/main:
	@echo "install virtual environment..."
	$(PIP) install uv
	$(UV) sync --no-group dev

.PHONY: venv/install/all
## Install all dependencies
venv/install/all:
	@echo "install virtual environment..."
	$(PIP) install uv
	$(UV) sync --all-groups

#################################################################################
# COMMANDS                                                                      #
#################################################################################

########################################
### Code style & formatting tools
########################################

.PHONY: lint/ruff
lint/ruff:
	@echo "linting using ruff..."
	uv run ruff format --check $(LINT_PATHS)
	uv run ruff check $(LINT_PATHS)
	@echo "done"
	@echo

.PHONY: lint/mypy
lint/mypy:
	@echo "type checking using mypy..."
	uv run mypy $(SRC_PATH)
	@echo "done"
	@echo

.PHONY: lint
## Run all linters
lint: lint/ruff lint/mypy

.PHONY: format
## Format source code
format:
	@echo "formatting using ruff..."
	uv run ruff format $(LINT_PATHS)
	uv run ruff check --fix $(LINT_PATHS)
	@echo "done"
	@echo

.PHONY: clean
## Delete all compiled Python files and caches
clean:
	@echo "Clear cache directories"
	rm -rf .mypy_cache .pytest_cache .coverage
	@rm -rf `find . -name __pycache__`
	@rm -rf `find . -type f -name '*.py[co]' `
	@rm -rf `find . -type f -name '*~' `
	@rm -rf `find . -type f -name '.*~' `
	@rm -rf `find . -type f -name '@*' `
	@rm -rf `find . -type f -name '#*#' `
	@rm -rf `find . -type f -name '*.orig' `
	@rm -rf `find . -type f -name '*.rej' `
	@rm -rf .coverage
	@rm -rf coverage.html
	@rm -rf coverage.xml
	@rm -rf htmlcov
	@rm -rf build
	@rm -rf cover
	@rm -rf .develop
	@rm -rf .flake
	@rm -rf .install-deps
	@rm -rf *.egg-info
	@rm -rf .pytest_cache
	@rm -rf .ruff_cache
	@rm -rf .mypy_cache
	@rm -rf dist
	@rm -rf test-reports


####################
### Tests
####################

.PHONY: test
## Run all tests with coverage
test:
	uv run pytest --cov=$(SRC_PATH) --cov-report=term-missing

####################
### Examples
####################

.PHONY: example
## Run example: make example name=basic_usage
example:
	uv run python examples/$(name).py

#################################################################################
# Self Documenting Commands                                                     #
#################################################################################

.DEFAULT_GOAL := help

# Inspired by <http://marmelab.com/blog/2016/02/29/auto-documented-makefile.html>
# sed script explained:
# /^##/:
# 	* save line in hold space
# 	* purge line
# 	* Loop:
# 		* append newline + line to hold space
# 		* go to next line
# 		* if line starts with doc comment, strip comment character off and loop
# 	* remove target prerequisites
# 	* append hold space (+ newline) to line
# 	* replace newline plus comments by `---`
# 	* print line
# Separate expressions are necessary because labels cannot be delimited by
# semicolon; see <http://stackoverflow.com/a/11799865/1968>
.PHONY: help
help:
	@echo "$$(tput bold)Available rules:$$(tput sgr0)"
	@echo
	@sed -n -e "/^## / { \
		h; \
		s/.*//; \
		:doc" \
		-e "H; \
		n; \
		s/^## //; \
		t doc" \
		-e "s/:.*//; \
		G; \
		s/\\n## /---/; \
		s/\\n/ /g; \
		p; \
	}" ${MAKEFILE_LIST} \
	| LC_ALL='C' sort --ignore-case \
	| awk -F '---' \
		-v ncol=$$(tput cols) \
		-v indent=19 \
		-v col_on="$$(tput setaf 6)" \
		-v col_off="$$(tput sgr0)" \
	'{ \
		printf "%s%*s%s ", col_on, -indent, $$1, col_off; \
		n = split($$2, words, " "); \
		line_length = ncol - indent; \
		for (i = 1; i <= n; i++) { \
			line_length -= length(words[i]) + 1; \
			if (line_length <= 0) { \
				line_length = ncol - indent - length(words[i]) - 1; \
				printf "\n%*s ", -indent, " "; \
			} \
			printf "%s ", words[i]; \
		} \
		printf "\n"; \
	}' \
	| more $(shell test $(shell uname) = Darwin && echo '--no-init --raw-control-chars')
