Transmission-DH

MAIN_FUNC (){
    INIT_FUNC
    AVAILABLE_TORRENT_FUNC 
    REMOVE_FUNC
}

INIT_FUNC () {
    # IP:PORT
    SERVER="localhost:9091"

    # Define path to debug file
    DEBUG_FILE="/path/to/file/transmission-dh_debug.txt"
    
    # Limit ratio on torrent until removing
    RATIO=2.0
    # Limit time in hours to hold a dead torrent until removal (In case a lot of torrents in queue)
    DEAD_RETENTION=12
    # Limit time in hours before remove torrent since it was added, default: 5 days
    ADDED_RETENTION=120 

    # Available labels
    LABELS="radarr|sonarr"
    # Excluded trackers (Use with care)
    TRACKERS=(Tracker1 Tracker1 Tracker3)
    # Set to true in order to get debug data
    DEBUG_DATA=false
    #-------------------------------------------------------------------
    
    # Create info arrays
    DEBUG_TORRENT_ARRAY=()
    REMOVE_TORRENT_ARRAY=()
    INFO_TORRENT_ARRAY=()
}


AVAILABLE_TORRENT_FUNC (){
    echo -e "\n\n[INFO] Transmission data handler" `date +"%Y-%m-%d %T"`>> $DEBUG_FILE
    
    # Get an ID list of available torrents on the server
    TORRENT_LIST=$(transmission-remote $SERVER --list | sed -e '1d' -e '$d' | awk '{print $1}' | sed -e 's/[^0-9]*//g')
    INFO_TORRENT_ARRAY+=( "ID" "Status" "State" "Availability" "Label" "Ratio" "Added [H]" "Name")
    today_date=$(date +%s)
    # Loop through each torrent
    for torrent_id in $TORRENT_LIST
    do
        # Meta data - Extract data from $torrent_info
        torrent_info=$(transmission-remote $SERVER --torrent $torrent_id --info)
        torrent_label=$(basename $(echo "$torrent_info" | grep "Location: *" | sed 's/Location\:\s//i' | awk '{$1=$1};1'))
        torrent_trackers=$(echo "$torrent_info" | grep "Magnet: *" | sed 's/Magnet\:\s//i' | awk '{$1=$1};1')
    
        # Check so torrent is included in either radarr or sonarr before getting all meta data
        case !"${torrent_label}" in LABELS) continue;; esac
        
        # Check if tracker exists in excluded trackers
        if echo "$torrent_trackers" | grep -q "$TRACKERS"; then
            continue
        fi
    
        
        torrent_name=$(echo "$torrent_info" | grep "Name: *" | sed 's/Name\:\s//i' | awk '{$1=$1};1')
        torrent_status=$(echo "$torrent_info" | grep "Done: *"  | sed 's/Percent Done\:\s//i' | awk '{$1=$1};1')
        torrent_state=$(echo "$torrent_info" | grep "State: *" | sed 's/State\:\s//i' | awk '{$1=$1};1')
        torrent_ratio=$(echo "$torrent_info" | grep "Ratio: *" | sed 's/Ratio\:\s//i' | awk '//{print $1}')
        torrent_availability=$(echo "$torrent_info" | grep "Availability: *" | sed 's/Availability\:\s//i'| sed 's/%//' | awk '//{print $1}')
        
        # Get from added date
        prev=$(date --date="$(echo "$torrent_info" | grep "Date added: *" | sed 's/Date added\:\s//i' | awk '{$1=$1};1')" +"%s")
        torrent_date_added=$(( ($today_date - $prev )/(60*60) ))
        
        #torrent_date_added=$(( ($(expr $(date '+%s')) - $(date -d "$(printf '%s\n' "$torrent_date_added" | awk '{
        #    printf "%04d-%02d-%02d %s\n", $5, \
        #    (index("JanFebMarAprMayJunJulAugSepOctNovDec",$2)+2)/3,$3, $4}')" +"%s")) / 3600 )) 
        
        if [[ "$torrent_ratio" == "None" ]]; then
           torrent_ratio="0"
        fi    
        # If the status is None!
        if [[ "$torrent_status" == *"nan%"* ]]; then
           torrent_status="0%"
        fi
        if [[ "$torrent_status" == *"nan%"* ]]; then
           torrent_status="0%"
        fi
        if [[ "$torrent_availability" == "None" || "$torrent_availability" == *"nan"* ]]; then
            torrent_availability="0.0"
        fi
        # Debug status - Logged towards transmission-dh_Debug.txt
        INFO_TORRENT_ARRAY+=("$torrent_id" "$torrent_status" "$torrent_state" "$torrent_availability" "$torrent_label" "$torrent_ratio" "$torrent_date_added" "$torrent_name")
        
         # Remove torrent if dead by checking error or availability is 0
        if (($(echo "${torrent_availability} ${100}" | awk '{print ($1 < $2)}'))) && [[ $ADDED_RETENTION -ge $DEAD_RETENTION ]]; then
            REMOVE_TORRENT_ARRAY+=("[Remove] ID: $torrent_id Torrent is Dead -> Removing $torrent_name")
            continue
        fi
        
        # Remove if ratio reached
        if (( $(echo "${torrent_ratio} ${RATIO}" | awk '{print ($1 >= $2)}') )); then  
            REMOVE_TORRENT_ARRAY+=("[Remove] ID: $torrent_id Torrent reached ratio $torrent_ratio -> Removing $torrent_name")
            continue
        fi    
        # Remove if Retention (TTL) reached
        if [[ $torrent_date_added -ge $ADDED_RETENTION ]]; then
            REMOVE_TORRENT_ARRAY+=("[Remove] ID: $torrent_id Torrent TTL reached, Time: $torrent_date_added hours ago -> Removing $torrent_name")
            continue
        fi  
    done
}

REMOVE_FUNC (){
    #Debug data
    if [[ $DEBUG_DATA == "true" ]]; then
        printf "\n%-5s %-8s %-12s %-12s %-8s %-5s %-10s %-120s" "${INFO_TORRENT_ARRAY[@]}" >> $DEBUG_FILE
        printf "\n%-s" "${DEBUG_TORRENT_ARRAY[@]}"  >> $DEBUG_FILE
    fi
    #Remove torrents
    printf "\n%-s" "${REMOVE_TORRENT_ARRAY[@]}" >> $DEBUG_FILE
    for each in "${REMOVE_TORRENT_ARRAY[@]}"
    do
        transmission-remote $SERVER --torrent "$(echo $each | awk '$2 ~ /ID:/ { print  $3}')" --remove-and-delete
    done
    # Dummy to get a new line
    printf "\n"
}
# Call main function
MAIN_FUNC