interpreter

#!/bin/bash

set -euo pipefail

INTERPRETER_PATH=$(realpath "$0" | xargs dirname)

FAT_JAR="$INTERPRETER_PATH/build/libs/tkom-1.0-SNAPSHOT-all.jar"
FILE="$INTERPRETER_PATH/src/main/resources/query.txt"

MAX_IDENTIFIER_LENGTH=100
MAX_STRING_LENGTH=1000
MAX_EXCEPTIONS=500
MAX_STACK_SIZE=100

help () {
    cat 1>&2 << EOF
Usage: $0 [OPTION] [FILE]
    -h --help               Display this message
    -c --clean              Re-build project from scratch before running application
    -i --identifier [VALUE] Set the maximum number of characters in a identifier
                            Default: $MAX_IDENTIFIER_LENGTH
    -s --string [VALUE]     Set the maximum number of characters in a string
                            Default: $MAX_STRING_LENGTH
    -e --exception [VALUE]  Set the maximum number of exceptions before stopping execution of a program
                            Default: $MAX_EXCEPTIONS
    -f --function [VALUE]   Set the maximum number of nested function calls before stopping execution of program
                            Default: $MAX_STACK_SIZE
EOF
	exit 0;
}

while [[ $# -gt 0 ]]; do
  case $1 in
    -h|--help)
        help
        ;;
    -c|--clean)
        ./gradlew clean 1>&2
        shift
        ;;
    -i|--identifier)
        MAX_IDENTIFIER_LENGTH="$2"
        shift
        shift
        ;;
    -s|--string)
        MAX_STRING_LENGTH="$2"
        shift
        shift
        ;;
    -e|--exception)
        MAX_EXCEPTIONS="$2"
        shift
        shift
        ;;
    -f|--function)
        MAX_STACK_SIZE="$2"
        shift
        shift
        ;;
    -*)
        echo "Unknown option $1" 1>&2
        help
        exit 1
        ;;
    *)
        FILE="$1"
        shift
        ;;
  esac
done



if [ ! -f "$FAT_JAR" ]; then
	cd "$INTERPRETER_PATH"
  	./gradlew shadowJar 1>&2
  	cd - > /dev/null
fi

java \
	-Dmax.identifier.length="$MAX_IDENTIFIER_LENGTH" \
	-Dmax.string.length="$MAX_STRING_LENGTH" \
	-Dmax.exceptions="$MAX_EXCEPTIONS" \
	-Dmax.stack.size="$MAX_STACK_SIZE" \
	-jar "$FAT_JAR" \
	"$FILE"