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#!/bin/sh

if [ $# -lt 1 ]; then
	echo "Usage $0 test_number [start] [end]"
	exit
fi

MAX_INT=2147483647
MIN_INT=-2147483648
MAX_INT1=2147483648
MIN_INT1=-2147483649

MAX_LONG=9223372036854775807
MIN_LONG=-9223372036854775808
MAX_LONG1=9223372036854775808
MIN_LONG1=-9223372036854775809

test_status=0

red() {
	printf "%s%s%s" "$(tput setaf 1)" "$1" "$(tput sgr 0)"
	test_status=1
}

green() {
	printf "%s%s%s" "$(tput setaf 2)" "$1" "$(tput sgr 0)"
}

assert() {
	if [ $# -ne 2 ]; then
		red "[KO] "
		return 0
	fi
	if [ -z "$1" ]; then
		red "[KO] "
		return 0
	fi
	if [ -z "$2" ]; then
		red "[KO] "
		return 0
	fi
	if [ "$1" = "$2" ]; then
		green "[OK] "
	else
		red "[KO] "
	fi
}

assert_ok() {
	assert "$1" "OK"
}

assert_error() {
	assert "$1" "Error"
}

if [ "$1" = "--error" ]; then
	printf "No arguments:\n"
	if [ -z "$(./checker)" ]
   	then
        green "[OK] "
	else
        red "[KO] "
	fi
	if [ -z "$(./push_swap)" ]
   	then
        green "[OK] "
	else
        red "[KO] "
	fi

	printf "\nNot digit character\n"
	assert_error "$(./checker 1 2 3 four 2>&1)"
	assert_error "$(./checker -1 2 3-3 2>&1)"
	assert_error "$(./checker 1_000 23 0 -1 2>&1)"
	assert_error "$(./push_swap 1 2 3 four 2>&1)"
	assert_error "$(./push_swap -1 2 3-3 2>&1)"
	assert_error "$(./push_swap 1_000 23 0 -1 2>&1)"

	printf "\nDuplicates\n"
	assert_error "$(./checker 1 1 2 3 2>&1)"
	assert_error "$(./checker 1 2 3 3 2>&1)"
	assert_error "$(./checker -1 0 2 0 2>&1)"
	assert_error "$(./checker -100 2 -100 2>&1)"
	assert_error "$(./checker 1 1 2>&1)"
	assert_error "$(./push_swap 1 1 2 3 2>&1)"
	assert_error "$(./push_swap 1 2 3 3 2>&1)"
	assert_error "$(./push_swap -1 0 2 0 2>&1)"
	assert_error "$(./push_swap -100 2 -100 2>&1)"
	assert_error "$(./push_swap 1 1 2>&1)"

	printf "\nMax/min int\n"
	assert_ok    "$(printf "" | ./checker $MIN_INT 2>&1)"
	assert_ok    "$(printf "" | ./checker $MAX_INT 2>&1)"
	assert_error "$(printf "" | ./checker $MIN_INT1 2>&1)"
	assert_error "$(printf "" | ./checker $MAX_INT1 2>&1)"
	if [ -z "$(./push_swap $MIN_INT 2>&1)" ]
	then
        green "[OK] "
	else
        red "[KO] "
	fi
	if [ -z  "$(./push_swap $MAX_INT 2>&1)" ]
	then
        green "[OK] "
	else
        red "[KO] "
	fi
    assert_error "$(./push_swap $MIN_INT1 2>&1)"
    assert_error "$(./push_swap $MAX_INT1 2>&1)"


	printf "\nMax/min long\n"
	assert_error "$(printf "" | ./checker $MIN_LONG 2>&1)"
	assert_error "$(printf "" | ./checker $MAX_LONG 2>&1)"
	assert_error "$(printf "" | ./checker $MIN_LONG1 2>&1)"
	assert_error "$(printf "" | ./checker $MAX_LONG1 2>&1)"
	assert_error "$(./push_swap $MIN_LONG 2>&1)"
	assert_error "$(./push_swap $MAX_LONG 2>&1)"
	assert_error "$(./push_swap $MIN_LONG1 2>&1)"
	assert_error "$(./push_swap $MAX_LONG1 2>&1)"

	exit "$test_status"
fi

test_nb="$1"

if [ -z "$2" ]
then
	start=1
else
	start="$2"
fi

if [ -z "$3" ]
then
    end=100
else
    end="$3"
fi

for i in $(seq 1 "$test_nb")
do
	arg="$(seq "$start" "$end" | shuf | xargs)"
    # shellcheck disable=SC2086
	result="$(./push_swap $arg | ./checker $arg 2>&1)"

	case "$result" in
		"OK")
			green "."
			;;
		"KO")
			red  "!"
			echo "Test $i failed with: $arg" >> result.log
			;;
		"Error")
			red "!"
			echo "Test $i failed due to parsing error with: $arg" >> result.log
			;;
		*)
			red "Unexpected output"
			exit
			;;
	esac
done

exit "$test_status"