#!/bin/bash
parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
cd "$parent_path"

SERVER_IP=friday
DOWNLOADS=""
MOUNT=""
DELETE_EMPTY=false

# Parse command line arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        --downloads)
            DOWNLOADS="$2"
            shift 2
            ;;
        --mount)
            MOUNT="$2"
            shift 2
            ;;
        --delete-empty)
            DELETE_EMPTY=true
            shift
            ;;
        *)
            echo "Unknown option: $1"
            exit 1
            ;;
    esac
done

if [ -z "$DOWNLOADS" ] || [ -z "$MOUNT" ]; then
    echo "Usage: $0 --downloads <downloads_path> --mount <mount_path> [--delete-empty]"
    exit 1
fi

# Extract the folder name from the last part of the MOUNT path
FOLDER_NAME=$(basename "$MOUNT")

ping -c1 -W2 "$SERVER_IP" > /dev/null 2>&1
if [[ $? -eq 0 ]]; then

    if mountpoint -q "$MOUNT"; then
        echo "$FOLDER_NAME mounted. Moving files." | ts '[%Y-%m-%d %H:%M:%S]'
        files=$(ls "$MOUNT") # Trigger drive spin up
        sleep 5

        output=$(rsync -avzh --remove-source-files --stats --exclude '.gitkeep' "$DOWNLOADS" "$MOUNT" | grep -A 1 'files transferred')
        files=$(echo "$output" | awk '/files transferred/{print $NF}')
        
        if [ "$DELETE_EMPTY" = true ]; then
            find "$DOWNLOADS" -type d -empty -delete
        fi

        if [[ "$files" != 0 ]]; then
            echo "Transferred $files files" | ts '[%Y-%m-%d %H:%M:%S]'
            ./slackit.sh "$output" "$FOLDER_NAME File Transfer"
        fi
    fi
fi