nvim ?= nvim

#
# Run under git-bash on Windows (requires: scoop install make git)
#
ifeq ($(OS),Windows_NT)
  ifneq ($(MSYSTEM),)
  else
    BASH_DIR := C:/Users/$(USERNAME)/scoop/apps/git/current/usr/bin
    ifneq ($(shell [ -f "$(BASH_DIR)/bash.exe" ] && echo 1),)
      $(info Using git-bash "$(BASH_DIR)/bash.exe")
      export PATH := $(BASH_DIR):$(PATH)
      SHELL := bash
      .SHELLFLAGS := -c
    endif
  endif
endif

#
# Run all tests or specic module tests
#
# Test nightly:
# `make test nvim=/home/bhagwan/Sources/nvim/neovim/build/bin/nvim
#
# Test both stable and nightly:
# `make test nvim="nvim /home/bhagwan/Sources/nvim/neovim/build/bin/nvim"`
#
# Test specific module(s) with `make test glob=file`
# NOTE: glob is resolved using `vim.fn.globpath` so we can also run:
# `make test glob=f`
#
.PHONY: test
test:
	for nvim_exec in $(nvim); do \
		printf "\n======\n\n" ; \
		$$nvim_exec --version | head -n 1 && echo '' ; \
		VIMRUNTIME="$$($$nvim_exec --clean --headless +'echo $$VIMRUNTIME' +q 2>/dev/null)" ; \
		if [ -z "$$VIMRUNTIME" ] || [ ! -d "$$VIMRUNTIME" ]; then \
			VIMRUNTIME="$$(realpath "$$(dirname "$$nvim_exec")/../../runtime")" ; \
			[ -d "$$VIMRUNTIME" ] || unset VIMRUNTIME ; \
		fi ; \
		VIMRUNTIME="$$VIMRUNTIME" FZF_LUA_NVIM_RUNTIME="$$VIMRUNTIME" \
			$$nvim_exec --headless --noplugin -u ./scripts/minimal_init.lua \
			-l ./scripts/make_cli.lua ; \
	done

# clean / update all screenshots
.PHONY: screenshots
screenshots:
	make test update_screenshots=true

.PHONY: clean-screenshots
clean-screenshots:
	rm -rf tests/screenshots/*
	make test

#
# Download 'mini.nvim' and `nvim-web-devicons` into "deps" subfolder
# only used with the CI workflow, `minimal_init` will detect the deps
# in our lazy.nvim local config
#
.PHONY: deps
deps:
	make clean
	@mkdir -p deps
	make deps/fzf-lua
	git clone --depth=1 --single-branch https://github.com/nvim-mini/mini.nvim deps/mini.nvim
	git clone --depth=1 --single-branch https://github.com/nvim-tree/nvim-web-devicons deps/nvim-web-devicons
	git clone --depth=1 --single-branch https://github.com/hrsh7th/nvim-cmp deps/nvim-cmp
	git clone --depth=1 --single-branch https://github.com/mfussenegger/nvim-dap.git deps/nvim-dap


# Target to clone the repository and checkout the specific SHA.
# Pinning a fixed SHA ensures that fzf test screenshots remain
# deterministic — the screenshots include total file counts and
# file ordering, both of which would change if the working tree's
# current state (or different commits) were used instead.
SHA=abe5ecafebb4e24feb162384d5f492431036e791
.PHONY: deps/fzf-lua
deps/fzf-lua:
	@mkdir -p deps
	git clone .git $@
	(cd $@ && git checkout $(SHA))

# Download the emmylua binaries (emmylua_check + luafmt) from upstream
# if `gh` is available and they are not already on the system PATH.
# Binaries are extracted into .emmylua/.
EMMYLUA_DIR=.emmylua
# Pin the emmylua release tag to download. Set to an empty
# string (EMMYLUA_VERSION=) to fetch the latest release instead.
EMMYLUA_VERSION=0.25.1
# OS arch detection for the emmylua binaries (Darwin/Linux/Windows,
# x64/arm64). Falls back to linux-x64 on unknown platforms; override
# by passing EMMY_CHECK_ASSET=<asset filename> or LUA_FMT_ASSET=<asset
# filename> on the make command line. Windows releases are shipped as
# `.zip` under the `win32-*` asset names.
EMMY_UNAME_S=$(shell uname -s 2>/dev/null)
EMMY_UNAME_M=$(shell uname -m 2>/dev/null)
EMMY_ARCH=$(if $(filter aarch64% arm64%,$(EMMY_UNAME_M)),arm64,x64)
ifeq ($(filter MINGW% MSYS% CYGWIN% Windows_NT,$(EMMY_UNAME_S)),)
  EMMY_OS=$(if $(filter Darwin darwin,$(EMMY_UNAME_S)),darwin,linux)
  EMMY_EXT:=
  EMMY_EXT_ARCHIVE:=.tar.gz
else
  EMMY_OS:=win32
  EMMY_EXT:=.exe
  EMMY_EXT_ARCHIVE:=.zip
endif
# Linux arm64 release assets are published with the "aarch64-glibc.2.17"
# suffix; darwin/win32 use the plain "arm64" suffix.
EMMY_ARCH_ASSET=$(if $(and $(filter linux,$(EMMY_OS)),$(filter arm64,$(EMMY_ARCH))),aarch64-glibc.2.17,$(EMMY_ARCH))
EMMY_CHECK_ASSET=emmylua_check-$(EMMY_OS)-$(EMMY_ARCH_ASSET)$(EMMY_EXT_ARCHIVE)
LUA_FMT_ASSET=luafmt-$(EMMY_OS)-$(EMMY_ARCH_ASSET)$(EMMY_EXT_ARCHIVE)
EMMY_CHECK_BIN=$(EMMYLUA_DIR)/emmylua_check$(EMMY_EXT)
LUA_FMT_BIN=$(EMMYLUA_DIR)/luafmt$(EMMY_EXT)

.PHONY: deps/emmylua
deps/emmylua:
	@mkdir -p $(EMMYLUA_DIR) ; \
	if [ ! -x "$(EMMY_CHECK_BIN)" ] && ! command -v emmylua_check >/dev/null 2>&1; then \
		if ! command -v gh >/dev/null 2>&1; then \
			echo "gh is required to download emmylua_check" >&2 ; \
			exit 1 ; \
		fi ; \
		echo "Downloading emmylua_check $(if $(EMMYLUA_VERSION),v$(EMMYLUA_VERSION),latest) [$(EMMY_CHECK_ASSET)]..." ; \
		gh release download --clobber -R EmmyLuaLs/emmylua-analyzer-rust \
			$(if $(EMMYLUA_VERSION),"$(EMMYLUA_VERSION)") \
			-p "$(EMMY_CHECK_ASSET)" -D $(EMMYLUA_DIR) && \
		case "$(EMMY_CHECK_ASSET)" in \
			*.zip) unzip -o "$(EMMYLUA_DIR)/$(EMMY_CHECK_ASSET)" -d $(EMMYLUA_DIR) 2>/dev/null || \
				powershell -NoProfile -Command "Expand-Archive -Force -LiteralPath '$(EMMYLUA_DIR)/$(EMMY_CHECK_ASSET)' -DestinationPath '$(EMMYLUA_DIR)'" ;; \
			*) tar xzf "$(EMMYLUA_DIR)/$(EMMY_CHECK_ASSET)" -C $(EMMYLUA_DIR) ;; \
		esac && \
		rm -f "$(EMMYLUA_DIR)/$(EMMY_CHECK_ASSET)" ; \
	fi ; \
	if [ ! -x "$(LUA_FMT_BIN)" ] && ! command -v luafmt >/dev/null 2>&1; then \
		if ! command -v gh >/dev/null 2>&1; then \
			echo "gh is required to download luafmt" >&2 ; \
			exit 1 ; \
		fi ; \
		echo "Downloading luafmt $(if $(EMMYLUA_VERSION),v$(EMMYLUA_VERSION),latest) [$(LUA_FMT_ASSET)]..." ; \
		gh release download --clobber -R EmmyLuaLs/emmylua-analyzer-rust \
			$(if $(EMMYLUA_VERSION),"$(EMMYLUA_VERSION)") \
			-p "$(LUA_FMT_ASSET)" -D $(EMMYLUA_DIR) && \
		case "$(LUA_FMT_ASSET)" in \
			*.zip) unzip -o "$(EMMYLUA_DIR)/$(LUA_FMT_ASSET)" -d $(EMMYLUA_DIR) 2>/dev/null || \
				powershell -NoProfile -Command "Expand-Archive -Force -LiteralPath '$(EMMYLUA_DIR)/$(LUA_FMT_ASSET)' -DestinationPath '$(EMMYLUA_DIR)'" ;; \
			*) tar xzf "$(EMMYLUA_DIR)/$(LUA_FMT_ASSET)" -C $(EMMYLUA_DIR) ;; \
		esac && \
		rm -f "$(EMMYLUA_DIR)/$(LUA_FMT_ASSET)" ; \
	fi

.PHONY: lint
lint: emmylua-check

.PHONY: emmylua-check
emmylua-check: | deps/emmylua
	@if [ -x "$(EMMY_CHECK_BIN)" ]; then \
		EMMY="$(EMMY_CHECK_BIN)" ; \
	else \
		EMMY="emmylua_check" ; \
	fi ; \
	VIMRUNTIME="$$(nvim --clean --headless +'echo $$VIMRUNTIME' +q 2>&1)" \
		$$EMMY . --ignore 'deps/**/*' --warnings-as-errors

.PHONY: fmt fmtcheck
fmt: | deps/emmylua
	@if [ -x "$(LUA_FMT_BIN)" ]; then \
		FMT="$(LUA_FMT_BIN)" ; \
	else \
		FMT="luafmt" ; \
	fi ; \
	$$FMT --config .luafmt.toml --write --recursive ./lua ./tests

fmtcheck: | deps/emmylua
	@if [ -x "$(LUA_FMT_BIN)" ]; then \
		FMT="$(LUA_FMT_BIN)" ; \
	else \
		FMT="luafmt" ; \
	fi ; \
	$$FMT --config .luafmt.toml --check --recursive ./lua ./tests

gen:
	nvim --clean -l lua/fzf-lua/init.lua

# clean up
.PHONY: clean
clean:
	rm -rf deps