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

if [[ $# -ne 1 ]]; then
  echo "Usage: $0 /path/to/source.iso"
  exit 1
fi

SOURCE_ISO="$1"

if [[ ! -f "$SOURCE_ISO" ]]; then
  echo "Error: ISO not found: $SOURCE_ISO"
  exit 1
fi

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
BASE_DIR="$(cd "$REPO_DIR/.." && pwd)"
BUILD_DIR="$BASE_DIR/build"
WORK_DIR="$BUILD_DIR/work"
MOUNT_DIR="/mnt/fedora-iso"

echo "Source ISO: $SOURCE_ISO"
echo "Work dir:   $WORK_DIR"

sudo mkdir -p "$MOUNT_DIR"

rm -rf "$WORK_DIR"
mkdir -p "$WORK_DIR"

echo "Mounting ISO..."
sudo mount -o loop "$SOURCE_ISO" "$MOUNT_DIR"

cleanup() {
  echo "Unmounting ISO..."
  sudo umount "$MOUNT_DIR" || true
}
trap cleanup EXIT

echo "Copying ISO contents..."
sudo rsync -a "$MOUNT_DIR"/ "$WORK_DIR"/

echo "Fixing ownership..."
sudo chown -R "$(id -u):$(id -g)" "$WORK_DIR"

echo "Done."