#!/bin/bash

realpath() {
    [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}

print-result() {
	if [[ ${COLUMNS} -gt 80 ]]
	then
		WIDTH=80
	else
		WIDTH=${COLUMNS}
	fi
	printf "\e[1F\e[1E\e[$((${WIDTH} - 8))C[\e[0;${1}m${2}\e[0;0m]\n" > /dev/stdout
}

cargo build --package=d4tools || exit 1

sfz --version >& /dev/null || cargo install sfz

cd data

sfz -p 54321 >& /dev/null &

cd ..

D4TOOLS=$(realpath ../../target/debug/d4tools)

ROOT_DIR=$(realpath $(dirname $0))

DATADIR=${ROOT_DIR}/data

rm -rf ${ROOT_DIR}/test-results
mkdir -p ${ROOT_DIR}/test-results

PASS_COUNT=0
FAIL_COUNT=0

for TEST_CASE in $(find ${ROOT_DIR} -name cmdline -not -path ${ROOT_DIR}/test-results -not -path ${ROOT_DIR}/data | sort)
do
	CASE_NAME=$(dirname ${TEST_CASE#${ROOT_DIR}/})
	echo -n "Running test ${CASE_NAME}..." > /dev/stderr
	OUTDIR=${ROOT_DIR}/test-temp-dir/
	mkdir -p ${OUTDIR}
	pushd $(dirname ${TEST_CASE}) >& /dev/null
	D4TOOLS=${D4TOOLS} OUTDIR=${OUTDIR} DATADIR=${DATADIR} bash cmdline > ${OUTDIR}/stdout
	PASS=0
	if [[ -e ${OUTDIR}/stdout ]] && [[ -e output.txt ]] && diff ${OUTDIR}/stdout output.txt &> ${OUTDIR}/output.diff
	then
		PASS=1	
	fi
	
	if [[ ${PASS} = 0 ]]
	then
		if [[ ${UPDATE_CASE} = ${CASE_NAME} ]]
		then
			cp ${OUTDIR}/stdout output.txt
			print-result 33 UPDATED
			PASS_COUNT=$((${PASS_COUNT}+1))
		else
			print-result 31 FAILED
			mkdir -p ${ROOT_DIR}/test-results/${CASE_NAME}
			cp ${OUTDIR}/output.diff ${ROOT_DIR}/test-results/${CASE_NAME}
			cat > ${ROOT_DIR}/test-results/${CASE_NAME}/run <<EOF
#!/bin/bash
set -x
D4TOOLS=${D4TOOLS}
OUTDIR=.
DATADIR=${DATADIR}
$(cat cmdline)
EOF
			chmod +x ${ROOT_DIR}/test-results/${CASE_NAME}/run
			cp ${ROOT_DIR}/${CASE_NAME}/* ${ROOT_DIR}/test-results/${CASE_NAME}
			FAIL_COUNT=$((${FAIL_COUNT}+1))
		fi
	else
		print-result 32 PASSED
		PASS_COUNT=$((${PASS_COUNT}+1))
	fi

	popd >& /dev/null

	rm ${OUTDIR} -rf
done

echo 
echo "${PASS_COUNT} cases passed, ${FAIL_COUNT} cases failed." > /dev/stderr
if [[ ${FAIL_COUNT} -gt 0 ]]
then
	echo
	echo "Note: Use 'test-results' directory to reproduce the failed test cases" > /dev/stderr
	exit 1
fi