#!/bin/bash

set -e

service:relations() {
    local service="$1" relation="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$1.$2" \
          rn ts rc td
    if [ -e "$cache_file" ]; then
        #debug "$FUNCNAME: SESSION cache hit $1"
        cat "$cache_file"
        return 0
    fi

    while read-0-err E rn ts rc td; do
        [ "$relation" == "$rn" ] && {
            printf "%s\0" "$ts" "$rc" "$td"
        }
    done < <(p-err get_service_relations "$service") > "$cache_file"
    if [ "$E" != 0 ]; then
        rm -f "$cache_file"  ## no cache
        return 1
    fi
    cat "$cache_file"
}
export -f service:relations



export TRAVERSE_SEPARATOR=:
## Traverse on all service satisfying relation
service:traverse:all() {
    local service_path="$1"
    local service relation path relation
    service=${service_path%%$TRAVERSE_SEPARATOR*}
    path=${service_path#*$TRAVERSE_SEPARATOR}
    if [[ "$path" == *$TRAVERSE_SEPARATOR* ]]; then
        relation=${path%%$TRAVERSE_SEPARATOR*}
        path=${path#*$TRAVERSE_SEPARATOR}
    else
        relation=$path
        path=
    fi
    while read-0-err E ts _ _; do
        if [ -n "$path" ]; then
            service:traverse "$ts$TRAVERSE_SEPARATOR$path"
        else
            printf "%s\n" "$ts"
        fi
    done < <(p-err service:relations "${service}" "${relation}")
    if [ "$E" != 0 ]; then
        err "Couldn't find service for ${DARKYELLOW}$service${NORMAL}--${DARKCYAN}$relation${NORMAL}--> ?"
        return 1
    fi
}
export -f service:traverse:all


##
## Finish live connection for relation nextcloud_app
##

nextcloud_services=($(service:traverse:all "$MASTER_BASE_SERVICE_NAME":nextcloud-app)) || return 1

if [ ${#nextcloud_services[@]} != 0 ]; then
    if ! collabora_url=$(relation:get "$MASTER_BASE_SERVICE_NAME":web-proxy url) || [ -z "$collabora_url" ]; then
        collabora_url="http://$BASE_SERVICE_NAME:9980"
    fi
    if ! get_healthy_container_ip_for_service "$SERVICE_NAME" 9980; then
        exit 17
    fi

    info "collabora_domain: '$collabora_url'"

    for nextcloud_service in "${nextcloud_services[@]}"; do

        ## Activate-config will make nextcloud try to connect to collabora.
        ## This is why we must run this in post_deploy

        compose --no-relations --no-init \
                occ "$nextcloud_service" \
                app:install richdocuments \; \
                config:app:set --value="${collabora_url}" richdocuments wopi_url \; \
                richdocuments:activate-config || return 1

    done
fi