#!/usr/bin/env bash
set -euo pipefail

APPFACTORY_ROOT="/opt/appfactory"
DB_FILE="$APPFACTORY_ROOT/data/appfactory/appfactory.db"
WORKSPACE_DIR="$APPFACTORY_ROOT/workspace"
DELETE_SCRIPT="$WORKSPACE_DIR/appfactory-tools/scripts/delete-app.sh"

DRY_RUN="${DRY_RUN:-1}"
MIN_AGE_HOURS="${MIN_AGE_HOURS:-24}"
MIN_AGE_MINUTES=$((MIN_AGE_HOURS * 60))

PROTECTED_WORKSPACES=(
  appfactory-infrastructure
  appfactory-monitor
  appfactory-portal
  appfactory-tools
  appfactory-webhook
  appfactory-worker
  python-fastapi-template
)

log() {
  printf '%s %s\n' "$(date '+%Y-%m-%d %H:%M:%S')" "$*"
}

is_protected() {
  local candidate="$1"
  local protected

  for protected in "${PROTECTED_WORKSPACES[@]}"; do
    if [ "$candidate" = "$protected" ]; then
      return 0
    fi
  done

  return 1
}

is_registered() {
  local candidate="$1"

  sqlite3 "$DB_FILE" \
    "SELECT 1 FROM apps WHERE id = '$candidate' LIMIT 1;" |
    grep -qx 1
}

if [ ! -f "$DB_FILE" ]; then
  log "ERROR: Databáze neexistuje: $DB_FILE"
  exit 1
fi

if [ ! -x "$DELETE_SCRIPT" ]; then
  log "ERROR: Mazací skript není spustitelný: $DELETE_SCRIPT"
  exit 1
fi

found=0
deleted=0
failed=0

while IFS= read -r app_dir; do
  app_id="$(basename "$app_dir")"

  if is_protected "$app_id"; then
    continue
  fi

  if is_registered "$app_id"; then
    continue
  fi

  if ! find "$app_dir" -maxdepth 0 -mmin "+$MIN_AGE_MINUTES" | grep -q .; then
    log "SKIP fresh orphan candidate: $app_id"
    continue
  fi

  found=$((found + 1))
  log "ORPHAN: $app_id"

  if [ "$DRY_RUN" = "1" ]; then
    log "DRY-RUN: spustil by se delete-app.sh $app_id"
    continue
  fi

  if "$DELETE_SCRIPT" "$app_id"; then
    deleted=$((deleted + 1))
    log "DELETED: $app_id"
  else
    failed=$((failed + 1))
    log "FAILED: $app_id"
  fi
done < <(
  find "$WORKSPACE_DIR" \
    -mindepth 1 \
    -maxdepth 1 \
    -type d \
    -print |
  sort
)

log "Finished. Found=$found Deleted=$deleted Failed=$failed DryRun=$DRY_RUN"

if [ "$failed" -gt 0 ]; then
  exit 1
fi