#!/bin/bash
dir="$(dirname "$0")"

# FTP server details
LOCAL_DIR="/backup"

#mkdir -p "$LOCAL_DIR"

keys=$(cat $dir/$2.yml | yaml2json - | jq '.volumes' | jq -r 'keys[]')

files=()

for key in $keys; do
    volume_name="rpc_$key-20" # needs to be followed by a date 2024

    need_to_copy_file=$($dir/list-backups.sh $1 | grep "${volume_name}" | sort | tail -n 1)

    #echo "Download: $need_to_copy_file"
    files+=("$need_to_copy_file")
done

if [ "$3" = "--print-timestamp-only" ]; then
    echo "${files[@]}"
    exit 0
fi

base_url="$1"

if [ ! -d "$LOCAL_DIR" ]; then
    echo "WARN: /backup directory does not exist - extracting directly"

    for file in "${files[@]}"; do
	echo "Processing: $file"
	curl --ipv4 -# "${base_url}${file}" | zstd -d | tar -xvf - -C /

	if [ $? -ne 0 ]; then
	    echo "Error processing $file"
	    exit 1
	else
	    echo "$file successfully processed."
	fi
    done
else
    aria2c -c -Z -x8 -j8 -s8 -d "$LOCAL_DIR" "${files[@]/#/$base_url}"    
fi