#!/usr/bin/env bash

root=$(git rev-parse --show-toplevel)
currev=$(git rev-parse HEAD)
rev=$1

if [ -z "${rev}" ]; then
        echo "Usage: $0 REV"
        exit 1
fi

rename () {
        case "$1" in
                open*) 
                        echo -n " "
                        ;;
                close*)
                        echo -n "✓"
                        ;;
                none*)
                        echo -n "-"
                        ;;
        esac
}

sit=$(which sit)

if [ -z "${sit}" ]; then
        echo "sit not found"
        exit 1
fi

sit_path=$(${sit} path)
rsit_path=$(realpath "${sit_path}" --relative-to="${root}")

tmpdir=$(mktemp -d)

git clone "${root}" "${tmpdir}" >/dev/null 2>/dev/null

items=$(git -C "${tmpdir}" diff ${currev}..${rev} --name-only | grep -e "^${rsit_path/./\\.}/items" | cut -d/ -f3 | uniq)

git -C "${tmpdir}" checkout -qf "${rev}"

for item in ${items}; do
        mr_p="merge_requests != null"
        mr=$(${sit} -r "${sit_path}" reduce "${item}" -q "${mr_p}" 2>/dev/null || echo)
        mr1=$(${sit} -r "${tmpdir}/${rsit_path}" reduce "${item}" -q "${mr_p}" 2>/dev/null || echo)
        mr=${mr:-${mr1}}

        if [ "${mr}" == "true" ]; then 
                ours=$(${sit} -r "${sit_path}" reduce "${item}" -q state 2>/dev/null || echo none)
                theirs=$(${sit} -r "${tmpdir}/${rsit_path}" reduce "${item}" -q state 2>/dev/null || echo none)
                summary=$(${sit} -r "${sit_path}" reduce "${item}" -q summary)
                summary1=$(${sit} -r "${sit_path}" reduce "${item}" -q summary)
                summary=${summary:-${summary1}}
                if [ "${ours}" == "${theirs}" ]; then
                        true
                else
                        ours=$(rename ${ours})
                        theirs=$(rename ${theirs})
                        echo "${item} || ${summary} || [${ours}] || [${theirs}]"
                fi
        fi
done

rm -rf "${tmpdir}"