lint

#!/usr/bin/env bash

set -e
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
cd $SCRIPT_DIR/..

# whether to run bonus levels by default, or only when requested
BONUS_DEFAULT=1

# docker configured and not inside docker
CONSOLE_PREFIX=""
if test ! -f /.dockerenv; then
	CONSOLE_PREFIX="./script/console"
fi

# colors and fonts, only loaded on interactive terminals
if [ -t 0 ]; then
	T_ERROR=$(tput setaf 7; tput setab 1)
	T_INFO=$(tput setaf 7; tput setab 4)
	T_WARNING=$(tput setaf 0; tput setab 3)
	T_SUCCESS=$(tput setaf 0; tput setab 2)
	T_BOLD=$(tput bold)
	T_RESET=$(tput sgr0)
fi

if test "$1" = "--help"; then
	echo "${T_INFO}./script/lint [<type>] [--bonus] [--no-bonus] [--everything] [extra arguments]${T_RESET}"
	echo 'Runs linters, defaults to phpcs and phpstan on the *git-diff* between the base and the head branch'
	echo ''
	echo "${T_BOLD}<type>${T_RESET}"
	echo 'Optional, if set it runs on the *changed files* (not only git-diff) between the base and the head branch'
	echo '- phpcs'
	echo '- phpstan'
	echo '- rector'
	echo '- commented (assumes --everything)'
	echo ''
	echo "${T_BOLD}--bonus${T_RESET}"
	echo "${T_BOLD}--no-bonus${T_RESET}"
	echo 'Optional, if set it includes/excludes linters on more strict levels (can be used with or without specific type)'
	echo 'Default behavior can be changed with `BONUS_DEFAULT` variable in `script/lint` file'
	echo ''
	echo "${T_BOLD}--everything${T_RESET}"
	echo 'Optional, if set it runs on the *whole codebase* instead of the diff/changed-files (ignored when no type is given)'
	echo ''
	echo "${T_BOLD}extra arguments${T_RESET}"
	echo 'Optional, passed to the linter of the specified type (ignored when no type is given)'
	echo ''
	echo "${T_INFO}./script/lint --list-files${T_RESET}"
	echo 'Shows the files it will run the linter on'
	echo ''
	echo "${T_INFO}./script/lint --help${T_RESET}"
	echo 'Shows this help'
	exit 0
fi

# check arguments
(test "$1" = "--list-files") && HAS_LIST_FILES=1 || HAS_LIST_FILES=0
(test "$2" = "--everything" || test "$3" = "--everything") && HAS_EVERYTHING=1 || HAS_EVERYTHING=0
(test "$1" = "--bonus" || test "$2" = "--bonus" || test "$3" = "--bonus") && BONUS_REQUESTED=1 || BONUS_REQUESTED=0
(test "$1" = "--no-bonus" || test "$2" = "--no-bonus" || test "$3" = "--no-bonus") && BONUS_REJECTED=1 || BONUS_REJECTED=0
(test "$#" -gt 0 && test "$1" != "--bonus" && test "$1" != "--no-bonus" && test "$1" != "--list-files" && test "$1" != "--everything") && HAS_TYPE=1 || HAS_TYPE=0
(test "$BONUS_REJECTED" = 0 && (test "$BONUS_REQUESTED" = 1 || test "$BONUS_DEFAULT" = 1)) && HAS_BONUS=1 || HAS_BONUS=0

# store type and its extra arguments
TYPE=""
EXTRA_ARGUMENTS=""
if test "$HAS_TYPE" = 1; then
	TYPE="$1"
	EXTRA_ARGUMENTS="${@:2}"

	if (test "$BONUS_REQUESTED" = 1 || test "$BONUS_REJECTED" = 1) && test "$HAS_EVERYTHING" = 1; then
		EXTRA_ARGUMENTS="${@:4}"
	elif test "$BONUS_REQUESTED" = 1 || test "$BONUS_REJECTED" = 1 || test "$HAS_EVERYTHING" = 1; then
		EXTRA_ARGUMENTS="${@:3}"
	fi

	if test -n "$EXTRA_ARGUMENTS"; then
		echo "${T_INFO}Running $TYPE with extra arguments: $EXTRA_ARGUMENTS${T_RESET}"
	fi
fi

# gather files to test
GIT_MERGE_BASE=$(git merge-base main @)
if test "$HAS_EVERYTHING" = 1; then
	FILE_FILTER=""
else
	# get names of files changed in this branch
	DIFF_FILE_NAMES=`git diff $GIT_MERGE_BASE --name-only --diff-filter=d -- '*.php'`
	if test -z "$DIFF_FILE_NAMES"; then
		echo "${T_WARNING}No files changed${T_RESET}"
		exit 0
	fi

	# convert filenames with newlines to filenames with spaces
	FILE_FILTER="${DIFF_FILE_NAMES//$'\n'/ }"

	if test "$HAS_LIST_FILES" = 1; then
		echo "$DIFF_FILE_NAMES"
		exit 0
	fi
fi

if test "$HAS_TYPE" = 1; then
	if test "$TYPE" = "commented"; then
		# can only work on file _paths_, thus we assume `--everything`
		$CONSOLE_PREFIX ./vendor/bin/swiss-knife check-commented-code . $EXTRA_ARGUMENTS

	elif test "$TYPE" = "phpcs"; then
		if test "$HAS_BONUS" = 1; then
			$CONSOLE_PREFIX ./vendor/bin/phpcs --standard=phpcs.bonus.xml -p $EXTRA_ARGUMENTS $FILE_FILTER
		else
			$CONSOLE_PREFIX ./vendor/bin/phpcs --standard=phpcs.xml -p $EXTRA_ARGUMENTS $FILE_FILTER
		fi

	elif test "$TYPE" = "phpstan"; then
		if test "$HAS_BONUS" = 1; then
			$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.bonus.neon -v $EXTRA_ARGUMENTS $FILE_FILTER 2> /dev/null
		else
			$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.neon -v $EXTRA_ARGUMENTS $FILE_FILTER 2> /dev/null
		fi

	elif test "$TYPE" = "rector"; then
		$CONSOLE_PREFIX ./vendor/bin/rector process --dry-run $EXTRA_ARGUMENTS $FILE_FILTER

	else
		echo "${T_ERROR}Unknown type specified: $TYPE${T_RESET}"
		exit 1
	fi
else
	echo -e "${T_BOLD}Running checks on the git changed lines between the base and the head branch${T_RESET}\n"

	echo "${T_INFO}Checking syntax errors (php -l)${T_RESET}"
	$CONSOLE_PREFIX php -l $FILE_FILTER 1> /dev/null \
		|| exit 1 \
		&& echo "${T_SUCCESS}Success${T_RESET}"
	echo -e '\n'

	echo -e "${T_BOLD}Running checks on the git-diff between the base and the head branch${T_RESET}\n"

	if test ! -f ./vendor/bin/reviewdog; then
		echo -e "${T_INFO}Installing reviewdog (in /vendor/bin/reviewdog) to lint changes only, this is one-time only${T_RESET}\n"
		curl -sfL https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh | sh -s -- -b ./vendor/bin
		echo -e '\n'
	fi

	echo "${T_INFO}Checking coding standards (phpcs)${T_RESET}"
	echo -e "${T_WARNING}Running without reviewdog${T_RESET}\n"
	#$CONSOLE_PREFIX ./vendor/bin/phpcs --standard=phpcs.xml --report=checkstyle $FILE_FILTER 2> /dev/null \
	#	| $CONSOLE_PREFIX ./vendor/bin/reviewdog -f=checkstyle -reporter=local -diff="git diff $GIT_MERGE_BASE" -fail-level=any 2> /dev/null \
	$CONSOLE_PREFIX ./vendor/bin/phpcs --standard=phpcs.xml $FILE_FILTER 2> /dev/null \
		&& echo "${T_SUCCESS}Success${T_RESET}"
	echo -e '\n'

	echo "${T_INFO}Checking static analysis (phpstan)${T_RESET}"
	echo -e "${T_WARNING}Running without reviewdog${T_RESET}\n"
	#$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.neon --no-progress --error-format=checkstyle 2> /dev/null $FILE_FILTER \
	#	| $CONSOLE_PREFIX ./vendor/bin/reviewdog -f=checkstyle -reporter=local -diff="git diff $GIT_MERGE_BASE" -fail-level=any 2> /dev/null \
	$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.neon $FILE_FILTER 2> /dev/null \
		&& echo "${T_SUCCESS}Success${T_RESET}"
	echo -e '\n'

	echo "${T_INFO}Checking refactors (rector)${T_RESET}"
	$CONSOLE_PREFIX ./vendor/bin/rector process --memory-limit=4g --dry-run $FILE_FILTER 2> /dev/null \
		&& echo "${T_SUCCESS}Success${T_RESET}"

	if test "$HAS_BONUS" = 1; then
		echo -e '\n'
		echo -e "${T_BOLD}Running bonus checks${T_RESET}\n"

		echo "${T_INFO}Checking coding standards (phpcs --bonus)${T_RESET}"
		echo -e "${T_WARNING}Running without reviewdog${T_RESET}\n"
		#$CONSOLE_PREFIX ./vendor/bin/phpcs --report=checkstyle --standard=phpcs.bonus.xml $FILE_FILTER 2> /dev/null \
		#	| $CONSOLE_PREFIX ./vendor/bin/reviewdog -f=checkstyle -reporter=local -diff="git diff $GIT_MERGE_BASE" -fail-level=any 2> /dev/null \
		$CONSOLE_PREFIX ./vendor/bin/phpcs --standard=phpcs.bonus.xml $FILE_FILTER 2> /dev/null \
			&& echo "${T_SUCCESS}Success${T_RESET}"
		echo -e '\n'

		echo "${T_INFO}Checking static analysis (phpstan --bonus)${T_RESET}"
		echo -e "${T_WARNING}Running without reviewdog${T_RESET}\n"
		#$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.bonus.neon --no-progress --error-format=checkstyle $FILE_FILTER 2> /dev/null \
		#	| $CONSOLE_PREFIX ./vendor/bin/reviewdog -f=checkstyle -reporter=local -diff="git diff $GIT_MERGE_BASE" -fail-level=any 2> /dev/null \
		$CONSOLE_PREFIX ./vendor/bin/phpstan analyse --configuration=phpstan.bonus.neon $FILE_FILTER 2> /dev/null \
			&& echo "${T_SUCCESS}Success${T_RESET}"
	fi
fi