#!/usr/bin/env bash
#
# Runs the full suite of tests against LinkedIn DustJS and duster to compare the result
set -euo pipefail
IFS=$'\n\t'
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

failed_count=0
show_diff=0

while (( "$#" )); do
    if [ "$1" = "--help" ]; then
        cat<<EOF
Runs the full compliance test suite.

Options:
  --show-diff     Shows the difference between the two dust implementations
EOF
        exit 0
    elif [ "$1" = "--show-diff" ]; then
        show_diff=1
    else
        (>&2 echo "Unrecognized option: $1")
        exit 1
    fi
    shift
done

while read -r test_group; do
    test_group_name=$(basename "$test_group")
    while read -r test_case; do
        test_case_file_name=$(basename "$test_case")
        test_case_name=${test_case_file_name%.*}
        set +e
        (
            if cmp -s <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case") <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case"); then
                echo "$test_group_name::$test_case_name PASSED"
            else
                echo "$test_group_name::$test_case_name FAILED"
                if [ $show_diff -eq 1 ]; then
                    diff --label "dustjs-linked" --label "duster" <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) node "$DIR/dustjs_shim.js" < "$test_case" 2>/dev/null ) <(xargs -a <(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name 'main.dust'; find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.dust' ! -name 'main.dust' | sort) "$DIR/../target/debug/duster-cli" < "$test_case" 2>/dev/null )
                fi
                exit 1
            fi
        )
        if [ $? -ne 0 ]; then
            failed_count=$((failed_count + 1))
        fi
        set -e
    done <<<"$(find "$test_group" -maxdepth 1 -mindepth 1 -type f -name '*.json' | sort)"
done <<<"$(find "$DIR/test_cases" -maxdepth 1 -mindepth 1 -type d | sort)"

if [ $failed_count -ne 0 ]; then
    echo "$failed_count failed tests"
    exit 1
else
    echo "All tests passed"
fi