#!/bin/bash
set -euo pipefail
source /home/nico/backup/lib.sh

# ================================
# Grundeinstellungen
# ================================
WEBSITES_BASE="/home/nico/docker-setup/websites"
BACKUP_DIR="/home/nico/backup/tmp/websites_backups"
REMOTE="onedrive-tdhaider:/IONOS/Backups/websites"

DATE=$(date +%F_%H-%M-%S)
RUN_DIR="$BACKUP_DIR/$DATE"

mkdir -p "$RUN_DIR"

log "🚀 Starte Website Media-Backup"
log "📅 Backup-Zeitpunkt: $DATE"
log "========================================="

FAILED_SITES=()

# ================================
# Alle Website-Ordner durchgehen
# ================================
for SITE_PATH in "$WEBSITES_BASE"/*; do
  [ -d "$SITE_PATH" ] || continue

  SITE_NAME=$(basename "$SITE_PATH")
  log
  log "🔹 Verarbeite: $SITE_NAME"

  # Volume-Namen
  # Konvention: <site_name>-media (z.B. haider-media)
  VOLUME_NAME="${SITE_NAME}-media"

  # Prüfen ob das Volume existiert
  if ! docker volume inspect "$VOLUME_NAME" &>/dev/null; then
    log "⚠️  Volume '$VOLUME_NAME' nicht gefunden – überspringe"
    FAILED_SITES+=("$SITE_NAME (Volume nicht gefunden)")
    continue
  fi

  # ================================
  # Media-Volume sichern
  # ================================
  MEDIA_FILE="$RUN_DIR/media_${SITE_NAME}_${DATE}.tar.gz"
  log "📦 Media-Volume Backup (Volume: $VOLUME_NAME)"

  if docker run --rm \
      -v "$VOLUME_NAME":/data \
      -v "$RUN_DIR":/backup \
      alpine sh -c "
        nice -n 19 ionice -c2 -n7 \
        tar -cf - -C /data . \
        | gzip -1 > /backup/$(basename "$MEDIA_FILE")
      "; then
    log "✅ Media gesichert: $(basename "$MEDIA_FILE")"
  else
    log "❌ Media Backup fehlgeschlagen"
    FAILED_SITES+=("$SITE_NAME (Media)")
    continue
  fi

done

# ================================
# Einmaliger Upload
# ================================
log
log "☁️  Starte Upload zu OneDrive..."
upload "$RUN_DIR" "$REMOTE/$DATE"
log "✅ Upload abgeschlossen"

cleanup_keep_latest "$REMOTE" 30
log "✅ Cleanup abgeschlossen!"

# ================================
# Aufräumen
# ================================
[[ -d "$BACKUP_DIR" ]] && rm -rf "$BACKUP_DIR"

log
log "🧹 Lokale temporäre Backups gelöscht"
log "🏁 Website Media-Backup abgeschlossen"

# ================================
# Ergebnisübersicht
# ================================
if [ "${#FAILED_SITES[@]}" -gt 0 ]; then
  log
  log "⚠️  Folgende Seiten hatten Probleme:"
  for SITE in "${FAILED_SITES[@]}"; do
    log "   - $SITE"
  done
else
  log
  log "🎉 Alle Website-Media-Volumes erfolgreich gesichert!"
fi