#!/bin/bash

set -e

# Configurable variables
REPO="borgbackup@192.168.1.184:/mnt/fileserver/borg"
NOTIFY_URL="https://ntfy.treehousefullofstars.com/backups"
SERVICES_FILE="/home/jadowyne/services.txt"

# Helper function to notify
ntfy_notify() {
    curl -H "Title: Borg Backup" -d "$2: $1" "$NOTIFY_URL"
}

while IFS=';' read -r SERVICE SRVPATH; do
    # Skip blank or comment lines
    [[ "$SERVICE" =~ ^#.*$ || -z "$SERVICE" ]] && continue

    echo "=== Backing up $SERVICE ==="
    PARENT_DIR="$(dirname "$SRVPATH")"
    FOLDER_NAME="$(basename "$SRVPATH")"
    SECONDS=0

    cd "$SRVPATH" || {
        ntfy_notify "$SERVICE: Cannot cd to $SRVPATH" "Error"
        continue
    }

    # Shutdown service
    docker compose down
    sleep 5

    if docker compose ps | grep -q 'Up'; then
        ntfy_notify "$SERVICE: Failed to shut down containers" "Error"
        continue
    fi

    cd "$PARENT_DIR" || { echo "Could not cd to $PARENT_DIR"; continue; }

    # Run Borg backup
    ARCHIVE="$SERVICE-$(date +%Y-%m-%d_%H-%M-%S)"
    BORG_PASSPHRASE='Jumbocarrot&001' borg create --compression zstd,6 "$REPO::$ARCHIVE" "$FOLDER_NAME"

    BORG_PASSPHRASE='Jumbocarrot&001' borg prune --prefix "${SERVICE}-" --keep-last=4 "$REPO"

    if [ $? -eq 0 ]; then
        cd "$SRVPATH" || {
            ntfy_notify "$SERVICE: Cannot cd to $SRVPATH" "Error"
            continue
        }
        # Start service back up
        docker compose up -d

        ELAPSED="$SECONDS"
        MIN=$((ELAPSED/60))
        SEC=$((ELAPSED%60))

        if docker compose ps | grep -q 'Up'; then
            ntfy_notify "$SERVICE backed up and restarted successfully in ${MIN}m ${SEC}s" "Success"
        else
            ntfy_notify "$SERVICE backup successful, but failed to restart service in ${MIN}m ${SEC}s" "Error"
        fi
    else
        ntfy_notify "$SERVICE backup FAILED (see logs)" "Error"
        # Consider starting the service anyway
        docker compose up -d
    fi

done < "$SERVICES_FILE"