#!/usr/bin/with-contenv bashio
# shellcheck shell=bash

##########
# UPDATE #
##########

bashio::log.info "Starting $(lastversion --version)"

if bashio::config.true "dry_run"; then
    bashio::log.warning "Dry run mode : on"
fi

# Clean previous data
mv /data/*.json /
rm -r /data/*
mv /*.json /data/

bashio::log.info "Checking status of referenced repositoriess..."
VERBOSE=$(bashio::config 'verbose')

#Defining github value
LOGINFO="... github authentification" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

GITUSER=$(bashio::config 'gituser')
GITPASS=$(bashio::config 'gitpass')
GITMAIL=$(bashio::config 'gitmail')
git config --system http.sslVerify false
git config --system credential.helper 'cache --timeout 7200'
git config --system user.name "${GITUSER}"
git config --system user.password "${GITPASS}"
if [[ "$GITMAIL" != "null" ]]; then git config --system user.email "${GITMAIL}"; fi

if bashio::config.has_value 'gitapi'; then
    LOGINFO="... setting github API" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
    GITHUB_API_TOKEN=$(bashio::config 'gitapi')
    export GITHUB_API_TOKEN
fi

#Create or update local version
REPOSITORY=$(bashio::config 'repository')
BASENAME=$(basename "https://github.com/$REPOSITORY")

if [ ! -d "/data/$BASENAME" ]; then
    LOGINFO="... cloning ${REPOSITORY}" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
    cd /data/ || exit
    git clone "https://github.com/${REPOSITORY}"
else
    LOGINFO="... updating ${REPOSITORY}" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
    cd "/data/$BASENAME" || exit
    git pull --rebase >/dev/null || git reset --hard >/dev/null
    git pull --rebase >/dev/null
fi

LOGINFO="... parse addons" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

# Go through all folders, add to filters if not existing

cd /data/"$BASENAME" || exit
for f in */; do

    if [ -f /data/"$BASENAME"/"$f"/updater.json ]; then
        SLUG=${f//\/}

        # Rebase
        LOGINFO="... updating ${REPOSITORY}" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
        cd "/data/$BASENAME" || exit
        git pull --rebase &>/dev/null || git reset --hard &>/dev/null
        git pull --rebase &>/dev/null

        #Define the folder addon
        LOGINFO="... $SLUG : checking slug exists in repo" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
        cd /data/"${BASENAME}"/"${SLUG}" || { bashio::log.error "$SLUG addon not found in this repository. Exiting."; continue; }

        # Get variables
        UPSTREAM=$(jq -r .upstream_repo updater.json)
        BETA=$(jq -r .github_beta updater.json)
        FULLTAG=$(jq -r .github_fulltag updater.json)
        HAVINGASSET=$(jq -r .github_havingasset updater.json)
        SOURCE=$(jq -r .source updater.json)
        FILTER_TEXT=$(jq -r .github_tagfilter updater.json)
        PAUSED=$(jq -r .paused updater.json)
        DATE="$(date '+%d-%m-%Y')"
        BYDATE=$(jq -r .dockerhub_by_date updater.json)

        # Number of elements to check in dockerhub
        if grep -q "dockerhub_list_size" updater.json; then
            LISTSIZE=$(jq -r .dockerhub_list_size updater.json)
        else
            LISTSIZE=100
        fi

        #Skip if paused
        if [[ "$PAUSED" = true ]]; then bashio::log.magenta "... $SLUG addon updates are paused, skipping"; continue; fi

        #Find current version
        LOGINFO="... $SLUG : get current version" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
        CURRENT=$(jq .upstream_version updater.json) || { bashio::log.error "$SLUG addon upstream tag not found in updater.json. Exiting."; continue; }

        if [[ "$SOURCE" = dockerhub ]]; then
            # Use dockerhub as upstream
            # shellcheck disable=SC2116
            LOGINFO="... Source is dockerhub" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

            DOCKERHUB_REPO="${UPSTREAM%%/*}"
            DOCKERHUB_IMAGE=$(echo "$UPSTREAM" | cut -d "/" -f2)
            LASTVERSION=$(
                curl -f -L -s --fail "https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/${DOCKERHUB_IMAGE}/tags/?page_size=$LISTSIZE" |
                jq '.results | .[] | .name' -r |
                sed -e '/.*latest.*/d' |
                sed -e '/.*dev.*/d' |
                sed -e '/.*nightly.*/d' |
                sort -V |
                tail -n 1
            )

            [ "${BETA}" = true ] && \
                LASTVERSION=$(
                curl -f -L -s --fail "https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/${DOCKERHUB_IMAGE}/tags/?page_size=$LISTSIZE" |
                jq '.results | .[] | .name' -r |
                sed -e '/.*latest.*/d' |
                sed -e '/.*dev.*/!d' |
                sort -V |
                tail -n 1
            )

            [ "${BYDATE}" = true ] && \
                LASTVERSION=$(curl -f -L -s --fail "https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/${DOCKERHUB_IMAGE}/tags/?page_size=${LISTSIZE}&ordering=last_updated" |
                jq '.results | .[] | .name' -r |
                sed -e '/.*latest.*/d' |
                sed -e '/.*dev.*/d' |
                sed -e '/.*nightly.*/d' |
                sort -V |
                tail -n 1
            ) && \
                DATE=$(curl -f -L -s --fail "https://hub.docker.com/v2/repositories/${DOCKERHUB_REPO}/${DOCKERHUB_IMAGE}/tags/?page_size=${LISTSIZE}&ordering=last_updated" |
                jq '.results[] | select(.name==$LASTVERSION) | .last_updated' -r --arg LASTVERSION "$LASTVERSION"
            ) && \
                DATE="${DATE%T*}" && \
                LASTVERSION="$LASTVERSION-$DATE"
            LOGINFO="... $SLUG : bydate is true, version is $LASTVERSION" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

        else

            # Use source as upstream
            ARGUMENTS="--at $SOURCE"
            LOGINFO="... $SLUG : source is $SOURCE" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

            #Prepare tag flag
            if [ "${FULLTAG}" = true ]; then
                LOGINFO="... $SLUG : fulltag is on" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
                ARGUMENTS="$ARGUMENTS --format tag"
            else
                LOGINFO="... $SLUG : fulltag is off" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
            fi

            #Prepare tag flag
            if [ "${HAVINGASSET}" = true ]; then
                LOGINFO="... $SLUG : asset_only tag is on" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
                ARGUMENTS="$ARGUMENTS --having-asset"
            else
                LOGINFO="... $SLUG : asset_only is off" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
            fi

            #Prepare tag flag
            if [ "${FILTER_TEXT}" = "null" ] || [ "${FILTER_TEXT}" = "" ]; then
                FILTER_TEXT=""
            else
                LOGINFO="... $SLUG : filter_text is on" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
                ARGUMENTS="$ARGUMENTS --only $FILTER_TEXT"
            fi

            #If beta flag, select beta version
            if [ "${BETA}" = true ]; then
                LOGINFO="... $SLUG : beta is on" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
                ARGUMENTS="$ARGUMENTS --pre"
            else
                LOGINFO="... $SLUG : beta is off" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
            fi

            #Execute version search
            # shellcheck disable=SC2086
            LASTVERSION=$(lastversion "$UPSTREAM" $ARGUMENTS) || continue
        fi


        # Add brackets
        LASTVERSION='"'${LASTVERSION}'"'

        # Do not compare with ls tag for linuxserver images (to avoid updating only for dependencies)
        #LASTVERSION2=${LASTVERSION%-ls*}
        #CURRENT2=${CURRENT%-ls*}
        LASTVERSION2=${LASTVERSION}
        CURRENT2=${CURRENT}

        # Update if needed
        if [ "${CURRENT2}" != "${LASTVERSION2}" ]; then
            LOGINFO="... $SLUG : update from ${CURRENT} to ${LASTVERSION}" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

            #Change all instances of version
            LOGINFO="... $SLUG : updating files" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
            for files in "config.json" "config.yaml" "Dockerfile" "build.json" "build.yaml";do
                if [ -f /data/"${BASENAME}"/"${SLUG}"/$files ]; then
                    sed -i "s/${CURRENT}/${LASTVERSION}/g" /data/"${BASENAME}"/"${SLUG}"/"$files"
                fi
            done

            # Remove " and modify version
            LASTVERSION=${LASTVERSION//\"/}
            CURRENT=${CURRENT//\"/}
            jq --arg variable "$LASTVERSION" '.version = $variable' /data/"${BASENAME}"/"${SLUG}"/config.json | sponge /data/"${BASENAME}"/"${SLUG}"/config.json # Replace version tag
            jq --arg variable "$LASTVERSION" '.upstream_version = $variable' /data/"${BASENAME}"/"${SLUG}"/updater.json | sponge /data/"${BASENAME}"/"${SLUG}"/updater.json # Replace upstream tag
            jq --arg variable "$DATE" '.last_update = $variable' /data/"${BASENAME}"/"${SLUG}"/updater.json | sponge /data/"${BASENAME}"/"${SLUG}"/updater.json # Replace date tag

            #Update changelog
            touch "/data/${BASENAME}/${SLUG}/CHANGELOG.md"
            sed -i "1i - Update to latest version from $UPSTREAM" "/data/${BASENAME}/${SLUG}/CHANGELOG.md"
            sed -i "1i ## ${LASTVERSION} (${DATE})" "/data/${BASENAME}/${SLUG}/CHANGELOG.md"
            sed -i "1i " "/data/${BASENAME}/${SLUG}/CHANGELOG.md"
            LOGINFO="... $SLUG : files updated" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

            #Git commit and push
            git add -A # add all modified files

            git commit -m "Updater bot : $SLUG updated to ${LASTVERSION}" >/dev/null

            LOGINFO="... $SLUG : push to github" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi

            # if API is set
            if bashio::config.has_value 'gitapi'; then
                git remote set-url origin "https://${GITUSER}:${GITHUB_API_TOKEN}@github.com/${REPOSITORY}" &>/dev/null
            else
                git remote set-url origin "https://${GITUSER}:${GITPASS}@github.com/${REPOSITORY}" &>/dev/null
            fi

            # Push
            if ! bashio::config.true "dry_run"; then
               git push &>/dev/null
            fi

            #Log
            bashio::log.yellow "... $SLUG updated from ${CURRENT} to ${LASTVERSION}"

        else
            bashio::log.green "... $SLUG is up-to-date ${CURRENT}"
        fi
    fi
done || true # Continue even if issue

bashio::log.info "Addons update completed"
