#!/bin/bash

QUIET_ARG=""
NO_VENV=0

function usage() {
    [ -n "$1" ] && echo -e "$1\n" > /dev/stderr
    echo "Usage: $0 [-x] [-q|--quiet] [--no-venv]"
    echo "  -h/--help     Show usage message"
    echo "  -q/--quiet    Enable quiet mode"
    echo "  -n/--no-venv  Disable venv creation and run tests on system environment"
    echo "  -x            Enable debug mode"
    [ -n "$1" ] && exit 1
    exit 0
}

idx=1
while [ $idx -le $# ]
do
    OPT=${!idx}
    case $OPT in
        -h|--help)
            usage
            ;;
        -q|--quiet)
            QUIET_ARG="--quiet"
            ;;
        -n|--no-venv)
            NO_VENV=1
            ;;
        -x)
            set -x
            ;;
        *)
            usage "Unknown parameter '$OPT'"
    esac
    let idx=idx+1
done
[ "$1" == "--quiet" ] && QUIET_ARG="--quiet"

# Enter source directory
cd $( dirname $0 )

TEMP_VENV=0
VENV=""
if [ $NO_VENV -eq 1 ]
then
    echo "Run tests in system environment..."
elif [ -d venv ]
then
    VENV=$( realpath venv )
    echo "Using existing virtualenv ($VENV)..."
else
    # Create a temporary venv
    VENV=$(mktemp -d)
    echo "Create a temporary virtualenv in $VENV..."
    TEMP_VENV=1
    python3 -m venv $VENV
fi

if [ -n "$VENV" ]
then
    echo "Install package with dev dependencies using pip in virtualenv..."
    $VENV/bin/python3 -m pip install -e ".[dev]" $QUIET_ARG
    source $VENV/bin/activate
fi

# Run pre-commit
RES=0
echo "Run pre-commit..."
pre-commit run --all-files
[ $? -ne 0 ] && RES=1

# Clean temporary venv
[ $TEMP_VENV -eq 1 ] && rm -fr $VENV

exit $RES