#!/usr/bin/env bash
# JA3: multipart GOG → innoextract в bottle (без Wine-Inno). Экономия диска: .bin удаляются по ходу.
set -euo pipefail
GOG_DIR="$(cd "$(dirname "$0")" && pwd)"
# shellcheck source=config.sh
source "${GOG_DIR}/config.sh"

JA3_GAMES_DIR="${JA3_GAMES_DIR:-${HOME}/Games}"
JA3_PREFIX='setup_jagged_alliance_3_1.5.2_(80730)'
JA3_EXE="${JA3_GAMES_DIR}/${JA3_PREFIX}.exe"
JA3_TARGET="${BOTTLE_DIR}/drive_c/GOG Games/Jagged Alliance 3"
MARKER="${BOTTLE_DIR}/.ja3_installed"
LOG="/tmp/ja3-innoextract-${BOTTLE_NAME}.log"
JA3_MIN_FREE_MB="${JA3_MIN_FREE_MB:-800}"
JA3_KEEP_BINS="${JA3_KEEP_BINS:-0}"

gog_disk_free_mb() {
  local kb
  kb="$(gog_disk_free_kb)"
  echo $((kb / 1024))
}

gog_disk_watch() {
  local min_mb="$1"
  local free
  free="$(gog_disk_free_mb)"
  if [[ "${free}" -lt "${min_mb}" ]]; then
    echo "❌ Мало места на диске: ${free} MB свободно (нужно ≥${min_mb} MB)" >&2
    df -h "$(gog_data_volume_path)" | awk 'NR==2' >&2
    return 1
  fi
  return 0
}

gog_ja3_safe_cleanup() {
  local freed=0
  local d f

  for d in \
    "${GAMES_CACHE_DIR}/gog-galaxy-extract-gog-bottle" \
    "${GAMES_CACHE_DIR}/ja3-extract-test" \
    "${GAMES_CACHE_DIR}/ja3-innoextract-staging"; do
    if [[ -d "${d}" ]]; then
      local sz
      sz="$(du -sk "${d}" | awk '{print $1}')"
      rm -rf "${d}"
      freed=$((freed + sz))
      echo "  удалён cache: ${d}"
    fi
  done

  if [[ -f "${GAMES_CACHE_DIR}/setup_galaxy.exe" ]] \
    && [[ -f "${BOTTLE_DIR}/drive_c/Program Files (x86)/GOG Galaxy/GalaxyClient.exe" ]]; then
    f="${GAMES_CACHE_DIR}/setup_galaxy.exe"
    sz="$(du -sk "${f}" | awk '{print $1}')"
    rm -f "${f}"
    freed=$((freed + sz))
    echo "  удалён setup_galaxy.exe (Galaxy уже в bottle)"
  fi

  if [[ "${freed}" -gt 0 ]]; then
    echo "Освобождено ~$((freed / 1024)) MB (cache)"
  fi
}

ja3_bin_path() {
  echo "${JA3_GAMES_DIR}/${JA3_PREFIX}-$1.bin"
}

ja3_delete_bin() {
  local n="$1"
  local p
  p="$(ja3_bin_path "${n}")"
  if [[ -f "${p}" ]]; then
    rm -f "${p}"
    echo "  🗑  удалён $(basename "${p}") (~$(du -sh "${p}" 2>/dev/null | cut -f1 || echo '?'))"
    gog_disk_watch "${JA3_MIN_FREE_MB}" || true
  fi
}

ja3_delete_all_bins() {
  local n
  for n in 1 2 3 4; do
    ja3_delete_bin "${n}" || true
  done
  if [[ -f "${JA3_EXE}" && "${JA3_KEEP_BINS}" != "1" ]]; then
    rm -f "${JA3_EXE}"
    echo "  🗑  удалён $(basename "${JA3_EXE}")"
  fi
}

ja3_watch_bins() {
  local line opened=0
  while IFS= read -r line; do
    printf '%s\n' "${line}"
    case "${line}" in
      *"Opening \"${JA3_PREFIX}-2.bin\""*)
        ja3_delete_bin 1
        opened=2
        ;;
      *"Opening \"${JA3_PREFIX}-3.bin\""*)
        ja3_delete_bin 2
        opened=3
        ;;
      *"Opening \"${JA3_PREFIX}-4.bin\""*)
        ja3_delete_bin 3
        opened=4
        ;;
    esac
    gog_disk_watch "${JA3_MIN_FREE_MB}" || return 1
  done
  if [[ "${opened}" -ge 4 ]]; then
    ja3_delete_bin 4 || true
  fi
}

verify() {
  local n
  [[ -f "${JA3_EXE}" ]] || {
    echo "❌ Нет: ${JA3_EXE}"
    return 1
  }
  for n in 1 2 3 4; do
    [[ -f "$(ja3_bin_path "${n}")" ]] || {
      echo "❌ Нет: $(ja3_bin_path "${n}")"
      return 1
    }
  done
  command -v innoextract >/dev/null 2>&1 || {
    echo "❌ brew install innoextract"
    return 1
  }
}

main() {
  verify || exit 1
  gog_wine_check

  if [[ -f "${JA3_TARGET}/JA3.exe" ]]; then
    echo "JA3 уже установлен: ${JA3_TARGET}/JA3.exe"
    exit 0
  fi

  bash "${GOG_DIR}/emergency-stop.sh" || true

  echo "=== Очистка cache (без трогания архивов игры) ==="
  gog_ja3_safe_cleanup

  gog_disk_watch "${JA3_MIN_FREE_MB}" || {
    echo "❌ Перед установкой нужно ≥$((JA3_MIN_FREE_MB / 1024)) GB свободно."
    exit 1
  }

  echo ""
  echo "Свободно на Data: $(gog_disk_free_mb) MB"
  echo "Распаковка JA3 → ${JA3_TARGET}"
  echo "Лог: ${LOG}"
  echo "(архивы .bin удаляются по мере чтения innoextract)"
  echo ""

  rm -rf "${JA3_TARGET}"
  mkdir -p "${JA3_TARGET}"
  : >"${LOG}"

  cd "${JA3_GAMES_DIR}"
  set +e
  innoextract -e -m -d "${JA3_TARGET}" "$(basename "${JA3_EXE}")" 2>&1 \
    | tee "${LOG}" | ja3_watch_bins
  local rc=${PIPESTATUS[0]}
  set -e

  if [[ "${rc}" -ne 0 ]]; then
    echo ""
    echo "❌ innoextract exit ${rc}"
    tail -15 "${LOG}" 2>/dev/null || true
    df -h "$(gog_data_volume_path)" | awk 'NR==2'
    if [[ "${JA3_CLEANUP_PARTIAL:-1}" == "1" ]]; then
      echo "Удаляю незавершённую распаковку в bottle…"
      rm -rf "${JA3_TARGET}"
    fi
    exit 1
  fi

  if [[ -f "${JA3_TARGET}/JA3.exe" ]]; then
    bash "${GOG_DIR}/finish-ja3-layout.sh"
    date -u +"%Y-%m-%dT%H:%M:%SZ" >"${MARKER}"
    if [[ "${JA3_KEEP_BINS}" != "1" ]]; then
      echo ""
      echo "Удаляю GOG-архивы (~15 GB)…"
      ja3_delete_all_bins
    fi
    echo ""
    echo "OK: JA3 установлен."
    echo "  Свободно: $(gog_disk_free_mb) MB"
    echo "  Запуск: bash ${GOG_DIR}/run-ja3.sh"
  else
    echo "❌ JA3.exe не найден"
    find "${JA3_TARGET}" -maxdepth 2 -iname 'JA3.exe' 2>/dev/null | head -5
    exit 1
  fi
}

main "$@"