#!/usr/bin/env bash
set -e

# Function to display usage
usage() {
    echo "Usage: $0 [--video]"
    exit 1
}

# Parse command-line arguments
COPY_VIDEOS=false

while [[ "$#" -gt 0 ]]; do
    case $1 in
        -v|--video)
            COPY_VIDEOS=true
            shift
            ;;
        -h|--help)
            usage
            ;;
        *)
            echo "Unknown parameter passed: $1"
            usage
            ;;
    esac
done

if [ -n "$(find . -maxdepth 1 -type f -name "*.bplist" -print -quit)" ]; then
    scp ./*.bplist winroar:BSManager/BSInstances/1.39.1/Playlists/
    rm -v ./*.bplist 
fi

##
## Playlist Archive
##

# Define remote and local directories for playlist synchronization
REMOTE_PLAYLISTS="BSManager/BSInstances/1.39.1/Playlists/"
LOCAL_ARCHIVE_DIR=~/archive/beatsaber-playlists/
LOCAL_ARCHIVE_SUBDIR=~/archive/beatsaber-playlists/archive/
PREVIOUS_LIST=~/archive/beatsaber-playlists/previous_bplist_files.txt

# Ensure archive subdirectory exists
mkdir -p "$LOCAL_ARCHIVE_SUBDIR"

# Fetch current remote *.bplist files
ssh winroar "cd \"${REMOTE_PLAYLISTS}\" && dir /B *.bplist" > current_bplist_files.txt

# Compare with previous list to find deleted files
if [[ -f "$PREVIOUS_LIST" ]]; then
    deleted_files=$(comm -23 <(sort "$PREVIOUS_LIST") <(sort current_bplist_files.txt))
    for file in $deleted_files; do
        filename=$(basename "$file")
        if [[ -f "${LOCAL_ARCHIVE_DIR}${filename}" ]]; then
            mv "${LOCAL_ARCHIVE_DIR}${filename}" "$LOCAL_ARCHIVE_SUBDIR"
            echo "Archived deleted playlist: $filename"
        fi
    done
fi

# Update the previous list
mv current_bplist_files.txt "$PREVIOUS_LIST"

# Sync playlist files from remote to local
scp -q winroar:"${REMOTE_PLAYLISTS}*.bplist" "$LOCAL_ARCHIVE_DIR"

# Optional video synchronization
if $COPY_VIDEOS; then
    echo "Starting video synchronization..."
    
    # Copy videos from remote to local Downloads folder
    scp -r winroar:"Videos/Beat Saber/" "$HOME/Downloads/"
    
    echo "Video files copied successfully."
    
    echo "Press [Enter] to delete videos on winroar."
    read -r
    
    # Delete videos on remote after confirmation
    ssh winroar 'rmdir Videos/Beat\ Saber /q /s'
    
    echo "Remote video directory deleted."
fi