#!/bin/bash

set -eu -o pipefail
shopt -s failglob

FAIL=0

for PROJECTPATH in ./projects/*
do
    PROJECT=$(basename ${PROJECTPATH})

    # Tor devs are in charge of their dependencies
    if [[ -e "./tor-browser-build/projects/${PROJECT}" || "${PROJECT}" = goxcrypto* || "${PROJECT}" = goxnet* || "${PROJECT}" = goxsys* ]]
    then
        continue
    fi

    # Electrum devs are in charge of their dependencies
    PROJECT_IS_ELECTRUM_DEP=1
    grep "project: ${PROJECT}" ./projects/electrum-nmc/config > /dev/null || PROJECT_IS_ELECTRUM_DEP=0
    if [ "$PROJECT_IS_ELECTRUM_DEP" = 1 ]
    then
        continue
    fi

    # x509-signature-splice branch depends on Go version, so it won't always be the latest
    if [ "${PROJECT}" = "gox509signaturesplice" ]
    then
        continue
    fi

    GIT_REV=$(./rbm/rbm showconf ${PROJECT} git_hash)

    GIT_URL=$(./rbm/rbm showconf ${PROJECT} git_url)

    REMOTE_TAGS=$(git ls-remote --tags "${GIT_URL}")
    if [ "${REMOTE_TAGS}" = "" ]
    then
        # There are no tags on the remote Git repo, so pretend HEAD is the latest.
        LATEST_TAG=HEAD
    else
        LATEST_TAG=$(git ls-remote --tags "${GIT_URL}" | grep -v '\^{}' | awk '{print $2}' | awk -F"/" '{print $3}' | sort -V | tail --lines=1)
    fi
    LATEST_INFO=$(git ls-remote "${GIT_URL}" HEAD ${LATEST_TAG} ${LATEST_TAG}^{})

    PROJECT_FAIL=0
    echo "${LATEST_INFO}" | grep ${GIT_REV} > /dev/null || PROJECT_FAIL=1
    if [ "${PROJECT_FAIL}" = 1 ]
    then
        FAIL=1
        echo "${PROJECT}: rbm uses ${GIT_REV}, latest at remote ${GIT_URL} are:
${LATEST_INFO}"
    fi
done

if [ "${FAIL}" = 1 ]
then
    exit 1
fi

exit 0