#!/usr/bin/env bash
# RETIRED (2026-09-30): setup-host zip packager. Public releases are bundled
# (tools/package_game_release.sh ships the compiled game built from the
# title's committed generated/ C; docs/ci/BUNDLED_RELEASES.md). Kept only for
# a locally built self-compile kit; no release workflow calls it.
#
# Universal setup-host zip packager for PSXRecomp game repos.
#
# Stages the host exe, title sources, filtered psxrecomp/ + recomp-ui/, then
# finishes with stage_setup_sdk.sh (emitters, OpenBIOS, MinGW DLLs).
# Portable cmake/clang is NOT embedded by default — Retro / the setup wizard
# download cmake-clang-v1 from retcomm-toolchains (or accept an offline zip).
#
# Usage (from game repo root):
#   psxrecomp/tools/package_setup_host.sh \
#     --build-dir build-ci \
#     --artifact linux-x64 \
#     --zip-prefix bpe \
#     --exe-name Bomberman_Party_Edition_Recompiled \
#     --display-name "Bomberman Party Edition Recompiled" \
#     --recompiler-build build-recompiler \
#     [--project-file REL]... [--project-dir REL]... \
#     [--runtime-dir NAME]... [--runtime-dir-optional NAME]... \
#     [--disc-hint "your legally owned disc"] \
#     [--bios-hint "an optional retail SCPH-1001 BIOS; otherwise OpenBIOS"] \
#     [--omit-openbios]     # retail-BIOS-only titles; game.toml openbios=false
#     [--version-env BPE_RELEASE_VERSION] \
#     [--embed-toolchain]   # optional: copy PSXRECOMP_TOOLCHAIN_DIR into zip
#
# --runtime-dir stages a directory the runtime loads exe-relative (mods,
# bezels, ...) from the built exe's directory into the stage root, so the
# shipped layout matches what the build tree staged next to the binary.
# Per-user state (mods/state.toml) is always excluded. The -optional variant
# warns and continues when the directory is absent from the build.
#
# mods/ IS STAGED BY DEFAULT and is REQUIRED. Every non-oracle game runtime
# gets <exe>/mods from runtime.cmake, so a release missing it means the build
# wiring is broken and the title would ship with an empty Mods page -- which
# is exactly what happened: this was opt-in per title, and 21 of 23 ports
# silently shipped no mods at all because their generated wrapper never passed
# --runtime-dir mods. Enforce it here rather than in each title's wrapper.
# A title that genuinely ships no catalog passes --no-mods.
#
# DEVELOPER CHANNEL. A package manifest may declare channel = "developer".
# Those are work-in-progress catalogs that should stay on the maintainer's
# machine: they ship with ordinary local builds and local exports, but
# --exclude-dev-mods (or EXCLUDE_DEV_MODS=1, which CI sets) drops them from a
# public release. Pruning is by PACKAGE directory, never by rewriting a
# manifest -- editing a package during packaging would change content that is
# meant to be verifiable.
#
# Env:
#   RELEASE_VERSION / <version-env> / VERSION file  (must match binary stamp)
#   PSXRECOMP_TOOLCHAIN_DIR | TOOLCHAIN_DIR | BPE_TOOLCHAIN_DIR  (only with --embed-toolchain)
#   PSXRECOMP_EMBED_TOOLCHAIN=1  same as --embed-toolchain
#   PSXRECOMP_RUNTIME_BIN_DIR | BPE_RUNTIME_BIN_DIR  (Windows MinGW DLL search)
#
# Lobby pin: the host exe must have been built with current runtime.cmake so
# $<TARGET_FILE_DIR>/psx_game_version.txt exists. This script refuses to ship a
# VERSION file that disagrees with that stamp (netplay list filter bug).
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
ROOT="$(pwd)"

BUILD_DIR=""
ARTIFACT=""
ZIP_PREFIX=""
EXE_NAME=""
DISPLAY_NAME=""
RECOMPILER_BUILD="build-recompiler"
VERSION_ENV="RELEASE_VERSION"
DISC_HINT="your legally owned game disc"
BIOS_HINT=""
OMIT_OPENBIOS=0
# Wave-5 F4: a packaged game.toml without `overlay_cache = true` ships a runtime that never
# initialises the overlay loader, so every streamed overlay runs on the interpreter (78 of
# 105 releases measured 2026-09-16). Refuse unless the caller states why.
SHIP_WITHOUT_OVERLAY_CACHE_BECAUSE=""
PROJECT_FILES=()
PROJECT_DIRS=()
RUNTIME_DIRS=()
RUNTIME_DIRS_OPTIONAL=()
# mods/ ships by default; --no-mods opts a catalog-less title out.
STAGE_MODS=1
# Drop channel = "developer" packages from the shipped catalog.
#
# Defaults to ON under CI and OFF locally, which is the whole point: a
# maintainer's local build and local export keep the mods they are working on,
# while anything a release workflow publishes does not. Keying off $CI (set by
# GitHub Actions and every other provider) means this holds for every title
# without editing 23 separate release workflows -- a per-workflow opt-in is
# exactly the shape that left 21 of 23 ports shipping no mods at all.
# --include-dev-mods / --exclude-dev-mods override either way.
if [[ -z "${EXCLUDE_DEV_MODS:-}" ]]; then
  if [[ -n "${CI:-}" ]]; then EXCLUDE_DEV_MODS=1; else EXCLUDE_DEV_MODS=0; fi
fi
RUNTIME_BIN_DIR="${PSXRECOMP_RUNTIME_BIN_DIR:-${BPE_RUNTIME_BIN_DIR:-/usr/x86_64-w64-mingw32/bin}}"
EMBED_TOOLCHAIN=0
if [[ "${PSXRECOMP_EMBED_TOOLCHAIN:-0}" == "1" ]]; then
  EMBED_TOOLCHAIN=1
fi

usage() {
  sed -n '2,30p' "$0" | sed 's/^# \{0,1\}//'
  exit "${1:-2}"
}

while [[ $# -gt 0 ]]; do
  case "$1" in
    -h|--help) usage 0 ;;
    --build-dir) BUILD_DIR="${2:?}"; shift 2 ;;
    --artifact) ARTIFACT="${2:?}"; shift 2 ;;
    --zip-prefix) ZIP_PREFIX="${2:?}"; shift 2 ;;
    --exe-name) EXE_NAME="${2:?}"; shift 2 ;;
    --display-name) DISPLAY_NAME="${2:?}"; shift 2 ;;
    --recompiler-build) RECOMPILER_BUILD="${2:?}"; shift 2 ;;
    --version-env) VERSION_ENV="${2:?}"; shift 2 ;;
    --disc-hint) DISC_HINT="${2:?}"; shift 2 ;;
    --bios-hint) BIOS_HINT="${2:?}"; shift 2 ;;
    --omit-openbios) OMIT_OPENBIOS=1; shift ;;
    --project-file) PROJECT_FILES+=("${2:?}"); shift 2 ;;
    --project-dir) PROJECT_DIRS+=("${2:?}"); shift 2 ;;
    --no-mods) STAGE_MODS=0; shift ;;
    --exclude-dev-mods) EXCLUDE_DEV_MODS=1; shift ;;
    --include-dev-mods) EXCLUDE_DEV_MODS=0; shift ;;
    --runtime-dir) RUNTIME_DIRS+=("${2:?}"); shift 2 ;;
    --runtime-dir-optional) RUNTIME_DIRS_OPTIONAL+=("${2:?}"); shift 2 ;;
    --runtime-bin) RUNTIME_BIN_DIR="${2:?}"; shift 2 ;;
    --root) ROOT="${2:?}"; shift 2 ;;
    --embed-toolchain) EMBED_TOOLCHAIN=1; shift ;;
    --no-embed-toolchain) EMBED_TOOLCHAIN=0; shift ;;
    --ship-without-overlay-cache-because) SHIP_WITHOUT_OVERLAY_CACHE_BECAUSE="${2:?}"; shift 2 ;;
    *)
      echo "error: unknown arg: $1" >&2
      usage 2
      ;;
  esac
done

if [[ -z "${BIOS_HINT}" ]]; then
  if [[ "${OMIT_OPENBIOS}" -eq 1 ]]; then
    BIOS_HINT="a legal retail SCPH-1001 BIOS dump (required)"
  else
    BIOS_HINT="an optional retail SCPH-1001 BIOS; otherwise OpenBIOS is regenerated locally"
  fi
fi

# Default the mods catalog into the required set unless the caller already
# named it (in either list) or opted out. Appending rather than overriding
# keeps an explicit --runtime-dir-optional mods meaningful for a title that
# knowingly builds without one.
if [[ "${STAGE_MODS}" -eq 1 ]]; then
  _mods_named=0
  for _d in "${RUNTIME_DIRS[@]:-}" "${RUNTIME_DIRS_OPTIONAL[@]:-}"; do
    [[ "${_d}" == "mods" ]] && _mods_named=1
  done
  if [[ "${_mods_named}" -eq 0 ]]; then
    RUNTIME_DIRS+=("mods")
  fi
  # Also ship the SOURCE catalog (mods/preloaded/...) when the title has one.
  # The setup-host zip rebuilds on the player's machine, and that rebuild
  # re-runs the title's POST_BUILD mod staging -- which reads the source tree,
  # not the staged copy. Without this the rebuilt exe silently loses every
  # game-owned mod and keeps only the framework builtins. copy_proj skips a
  # path that does not exist, so this is inert for a title with no catalog.
  _mods_proj=0
  for _d in "${PROJECT_DIRS[@]:-}"; do
    [[ "${_d}" == "mods" ]] && _mods_proj=1
  done
  if [[ "${_mods_proj}" -eq 0 ]]; then
    PROJECT_DIRS+=("mods")
  fi
fi

if [[ -z "${BUILD_DIR}" || -z "${ARTIFACT}" || -z "${ZIP_PREFIX}" || -z "${EXE_NAME}" ]]; then
  echo "error: --build-dir, --artifact, --zip-prefix, and --exe-name are required" >&2
  usage 2
fi
if [[ -z "${DISPLAY_NAME}" ]]; then
  DISPLAY_NAME="${EXE_NAME}"
fi

ROOT="$(cd "${ROOT}" && pwd)"
if [[ -d "${ROOT}/${BUILD_DIR}" ]]; then
  BUILD_DIR="$(cd "${ROOT}/${BUILD_DIR}" && pwd)"
elif [[ -d "${BUILD_DIR}" ]]; then
  BUILD_DIR="$(cd "${BUILD_DIR}" && pwd)"
else
  echo "error: build dir not found: ${BUILD_DIR}" >&2
  exit 1
fi

# Defaults for a typical title if caller passed none.
# Codegen host sources live in psxrecomp/host/ (copied with the framework tree).
if [[ ${#PROJECT_FILES[@]} -eq 0 && ${#PROJECT_DIRS[@]} -eq 0 ]]; then
  PROJECT_FILES=(CMakeLists.txt game.toml VERSION)
  for d in seeds launcher_assets; do
    if [[ -e "${ROOT}/${d}" ]]; then
      PROJECT_DIRS+=("${d}")
    fi
  done
  for f in codegen_setup.c codegen_setup.h DISC.md README.md; do
    if [[ -e "${ROOT}/${f}" ]]; then
      PROJECT_FILES+=("${f}")
    fi
  done
fi

# Resolve *requested* version from env / VERSION file (may be empty until stamp).
REQUESTED=""
if [[ -n "${VERSION_ENV}" ]]; then
  REQUESTED="${!VERSION_ENV:-}"
fi
if [[ -z "${REQUESTED}" && -n "${RELEASE_VERSION:-}" ]]; then
  REQUESTED="${RELEASE_VERSION}"
fi
if [[ -z "${REQUESTED}" && -n "${BPE_RELEASE_VERSION:-}" ]]; then
  REQUESTED="${BPE_RELEASE_VERSION}"
fi
if [[ -z "${REQUESTED}" && -f "${ROOT}/VERSION" ]]; then
  REQUESTED="$(tr -d '[:space:]' <"${ROOT}/VERSION")"
fi
REQUESTED="$(printf '%s' "${REQUESTED}" | tr -d '[:space:]')"
REQUESTED="${REQUESTED#v}"

DIST="${ROOT}/dist"
STAGE="${DIST}/stage-setup-${ARTIFACT}"

rm -rf "${STAGE}"
mkdir -p "${STAGE}" "${DIST}"

EXE=""
for cand in \
  "${BUILD_DIR}/${EXE_NAME}" \
  "${BUILD_DIR}/${EXE_NAME}.exe" \
  "${BUILD_DIR}/Release/${EXE_NAME}.exe"
do
  if [[ -f "${cand}" ]]; then
    EXE="${cand}"
    break
  fi
done
if [[ -z "${EXE}" ]]; then
  echo "error: setup host executable '${EXE_NAME}' not found under ${BUILD_DIR}" >&2
  ls -la "${BUILD_DIR}" >&2 || true
  exit 1
fi

# Authoritative lobby pin = stamp written at compile time next to the exe
# (see runtime.cmake file(GENERATE) psx_game_version.txt). Never invent a
# newer VERSION for the zip than what was baked into PSX_GAME_VERSION.
normalize_ver() {
  local v
  v="$(printf '%s' "${1:-}" | tr -d '[:space:]')"
  v="${v#v}"
  printf '%s' "${v}"
}
BUILT=""
for stamp in \
  "$(dirname "${EXE}")/psx_game_version.txt" \
  "${BUILD_DIR}/psx_game_version.txt" \
  "${BUILD_DIR}/Release/psx_game_version.txt"
do
  if [[ -f "${stamp}" ]]; then
    BUILT="$(normalize_ver "$(cat "${stamp}")")"
    echo "lobby pin stamp: ${stamp} -> ${BUILT}"
    break
  fi
done
if [[ -z "${BUILT}" ]]; then
  echo "error: missing psx_game_version.txt next to ${EXE}" >&2
  echo "  Rebuild with current psxrecomp runtime.cmake so the lobby pin is stamped." >&2
  echo "  Refusing to package (VERSION file alone can drift from PSX_GAME_VERSION)." >&2
  exit 1
fi
if [[ -n "${REQUESTED}" && "${REQUESTED}" != "${BUILT}" ]]; then
  echo "error: RELEASE_VERSION/VERSION=${REQUESTED} but binary stamp=${BUILT}" >&2
  echo "  Rebuild with -DPSX_GAME_VERSION=${REQUESTED} (or pin VERSION then reconfigure)," >&2
  echo "  then re-run this packager. Shipping mismatched pins breaks netplay lobby lists." >&2
  exit 1
fi
VERSION="${BUILT}"
printf '%s\n' "${VERSION}" >"${ROOT}/VERSION"
ZIP_NAME="${ZIP_PREFIX}-${VERSION}-${ARTIFACT}.zip"
rm -f "${DIST}/${ZIP_NAME}"

cp -a "${EXE}" "${STAGE}/"
# Ship the stamp beside the exe so installers / Retro can prefer it over VERSION.
if [[ -f "$(dirname "${EXE}")/psx_game_version.txt" ]]; then
  cp -a "$(dirname "${EXE}")/psx_game_version.txt" "${STAGE}/psx_game_version.txt"
else
  printf '%s\n' "${VERSION}" >"${STAGE}/psx_game_version.txt"
fi
EXE_BASENAME="$(basename "${EXE}")"
EXE_DIR="$(dirname "${EXE}")"
if [[ -f "${EXE_DIR}/replay-diagnostics.py" ]]; then
  cp -a "${EXE_DIR}/replay-diagnostics.py" "${STAGE}/replay-diagnostics.py"
fi

# Windows: CMake may already have placed imported runtime DLLs (zlib1.dll)
# next to the host. Copy siblings into the stage before MinGW bundling —
# this packager used to copy only the .exe, so a missed PE-import walk
# shipped hosts that die on clean machines with "zlib1.dll was not found".
if [[ "${EXE_BASENAME}" == *.exe ]]; then
  shopt -s nullglob
  for dll in "${EXE_DIR}"/*.dll "${EXE_DIR}"/*.DLL; do
    [[ -f "${dll}" ]] || continue
    cp -a "${dll}" "${STAGE}/"
    echo "staged sibling DLL $(basename "${dll}")"
  done
  shopt -u nullglob
fi

if [[ ! -d "${EXE_DIR}/assets/fonts" || ! -d "${EXE_DIR}/assets/img" ]]; then
  echo "error: ${EXE_DIR}/assets/{fonts,img} missing — rebuild psx-runtime" >&2
  exit 1
fi
mkdir -p "${STAGE}/assets"
cp -a "${EXE_DIR}/assets/fonts" "${STAGE}/assets/"
cp -a "${EXE_DIR}/assets/img" "${STAGE}/assets/"
if [[ ! -f "${STAGE}/assets/img/boxart.tga" && -f "${ROOT}/launcher_assets/img/boxart.tga" ]]; then
  cp -a "${ROOT}/launcher_assets/img/boxart.tga" "${STAGE}/assets/img/boxart.tga"
fi

# Exe-relative runtime data (mods catalog, bezels, ...): the runtime resolves
# these from the exe's own directory, so ship them at the stage root exactly
# as the build tree staged them. Two things under mods/ belong to the local
# machine and must never leak into a release: state.toml is this machine's mod
# enable/disable state (preloaded catalogs ship default-disabled), and
# installed/ holds .psxmod archives the developer installed as a player would.
# Only mods/bundled/ is build output, and only build output ships.
copy_runtime_dir() {
  local name="$1" optional="$2"
  if [[ ! -d "${EXE_DIR}/${name}" ]]; then
    if [[ "${optional}" -eq 1 ]]; then
      echo "warn: ${EXE_DIR}/${name} missing -- skipped (--runtime-dir-optional)" >&2
      return 0
    fi
    echo "error: ${EXE_DIR}/${name} missing -- rebuild the runtime target" >&2
    echo "  (build wiring stages it next to the exe; see the title CMakeLists)" >&2
    exit 1
  fi
  mkdir -p "${STAGE}/${name}"
  if command -v rsync >/dev/null 2>&1; then
    rsync -a --exclude 'state.toml' --exclude 'state.toml.tmp' \
      --exclude 'installed' --exclude 'installed/***' \
      "${EXE_DIR}/${name}/" "${STAGE}/${name}/"
  else
    cp -a "${EXE_DIR}/${name}/." "${STAGE}/${name}/"
    rm -f "${STAGE}/${name}/state.toml" "${STAGE}/${name}/state.toml.tmp"
    rm -rf "${STAGE}/${name}/installed"
  fi
  echo "staged runtime dir ${name}/"
}

# Drop developer-channel work from a staged catalog tree.
#
# Channels are per FEATURE, so this cannot be a grep: a line-anchored match on
# `channel = "developer"` cannot tell a package-level key from one inside a
# [[feature]] block, and would drop a whole catalog because one instrument in
# it is unfinished. mod_channel_filter.py parses the manifest, removes the
# version directory when nothing in it ships, and otherwise emits a manifest
# without the developer features and the entries that only served them.
#
# Fails closed: if the filter cannot run, packaging stops rather than
# publishing unfinished work.
prune_dev_mods() {  # prune_dev_mods <dir of <id>/<version>/manifest.toml>...
  local python=""
  for candidate in python3 python; do
    if command -v "${candidate}" >/dev/null 2>&1; then python="${candidate}"; break; fi
  done
  if [[ -z "${python}" ]]; then
    echo "error: no python3 on PATH; cannot filter developer-channel mods" >&2
    exit 1
  fi
  if ! "${python}" "${SCRIPT_DIR}/mod_channel_filter.py" "$@"; then
    echo "error: developer-channel filtering failed" >&2
    exit 1
  fi
}

if ((${#RUNTIME_DIRS[@]})); then
  for d in "${RUNTIME_DIRS[@]}"; do
    copy_runtime_dir "${d}" 0
  done
fi
if ((${#RUNTIME_DIRS_OPTIONAL[@]})); then
  for d in "${RUNTIME_DIRS_OPTIONAL[@]}"; do
    copy_runtime_dir "${d}" 1
  done
fi

copy_proj() {
  local rel="$1"
  if [[ -e "${ROOT}/${rel}" ]]; then
    mkdir -p "$(dirname "${STAGE}/${rel}")"
    if [[ -d "${ROOT}/${rel}" ]]; then
      # Merge, never nest: a --runtime-dir of the same name may already have
      # staged both exe-relative data and project-local source data.
      mkdir -p "${STAGE}/${rel}"
      cp -a "${ROOT}/${rel}/." "${STAGE}/${rel}/"
    else
      cp -a "${ROOT}/${rel}" "${STAGE}/${rel}"
    fi
  else
    echo "error: missing ${rel}" >&2
    exit 1
  fi
}

for f in "${PROJECT_FILES[@]}"; do
  copy_proj "${f}"
done
for d in "${PROJECT_DIRS[@]}"; do
  copy_proj "${d}"
done

# Developer-channel pruning runs AFTER every catalog is staged, and covers BOTH
# copies: the runtime catalog under mods/bundled that the launcher lists, and
# the source catalog under mods/preloaded that the setup-host rebuild re-stages
# from. Pruning only the first would publish the package in source form and let
# the player's own rebuild put it straight back. mods/packages is the pre-split
# layout, kept here so an older staged tree is still pruned rather than shipped.
if [[ "${EXCLUDE_DEV_MODS}" -eq 1 ]]; then
  echo "excluding developer-channel mods from this package"
  prune_dev_mods "${STAGE}/mods/bundled" \
                 "${STAGE}/mods/preloaded/packages" \
                 "${STAGE}/mods/packages"
  _dev_left=$( { grep -rlE '^[[:space:]]*channel[[:space:]]*=[[:space:]]*"developer"[[:space:]]*$' \
      "${STAGE}" --include=manifest.toml 2>/dev/null || true; } | wc -l)
  if [[ "${_dev_left}" -ne 0 ]]; then
    echo "error: ${_dev_left} developer manifest(s) survived pruning:" >&2
    grep -rlE '^[[:space:]]*channel[[:space:]]*=[[:space:]]*"developer"[[:space:]]*$' \
        "${STAGE}" --include=manifest.toml >&2 || true
    exit 1
  fi
else
  _dev_in=$( { grep -rlE '^[[:space:]]*channel[[:space:]]*=[[:space:]]*"developer"[[:space:]]*$' \
      "${STAGE}" --include=manifest.toml 2>/dev/null || true; } | wc -l)
  if [[ "${_dev_in}" -ne 0 ]]; then
    echo "note: package includes ${_dev_in} developer-channel manifest(s);" \
         "pass --exclude-dev-mods (or EXCLUDE_DEV_MODS=1) for a public release"
  fi
fi

copy_tree_filtered() {
  local src="$1" dest="$2"
  shift 2
  mkdir -p "${dest}"
  if command -v rsync >/dev/null 2>&1; then
    rsync -a "$@" "${src}/" "${dest}/"
  else
    cp -a "${src}/." "${dest}/"
    rm -rf "${dest}/.git" "${dest}/recompiler/build" "${dest}/generated" 2>/dev/null || true
    find "${dest}" -type d -name '__pycache__' -prune -exec rm -rf {} + 2>/dev/null || true
    find "${dest}" -type d \( -name 'build' -o -name 'build-*' \) -prune -exec rm -rf {} + 2>/dev/null || true
  fi
}

if [[ ! -d "${ROOT}/psxrecomp" ]]; then
  echo "error: ${ROOT}/psxrecomp missing (expected framework submodule)" >&2
  exit 1
fi
if [[ ! -d "${ROOT}/recomp-ui" ]]; then
  echo "error: ${ROOT}/recomp-ui missing (expected UI submodule)" >&2
  exit 1
fi

copy_tree_filtered "${ROOT}/psxrecomp" "${STAGE}/psxrecomp" \
  --exclude '.git' \
  --exclude 'recompiler/build' \
  --exclude 'generated' \
  --exclude '__pycache__' \
  --exclude 'build' \
  --exclude 'build-*'

copy_tree_filtered "${ROOT}/recomp-ui" "${STAGE}/recomp-ui" \
  --exclude '.git' \
  --exclude 'build' \
  --exclude '__pycache__'

# Never ship game generated C or common disc working trees.
rm -rf "${STAGE}/generated" "${STAGE}/bpe" "${STAGE}/motk" "${STAGE}/disc"

STAGE_SDK="${SCRIPT_DIR}/stage_setup_sdk.sh"
if [[ ! -f "${STAGE_SDK}" ]]; then
  echo "error: missing ${STAGE_SDK}" >&2
  exit 1
fi
chmod +x "${STAGE_SDK}" 2>/dev/null || true

stage_args=(
  --stage "${STAGE}"
  --framework "${ROOT}/psxrecomp"
  --search-dir "${EXE_DIR}"
  --search-dir "${BUILD_DIR}"
  --runtime-bin "${RUNTIME_BIN_DIR}"
  --host-exe "${STAGE}/${EXE_BASENAME}"
  --recompiler-build "${RECOMPILER_BUILD}"
)
if [[ "${OMIT_OPENBIOS}" -eq 1 ]]; then
  stage_args+=(--omit-openbios)
fi
if [[ "${EMBED_TOOLCHAIN}" -eq 1 ]]; then
  if [[ -z "${PSXRECOMP_TOOLCHAIN_DIR:-${TOOLCHAIN_DIR:-${BPE_TOOLCHAIN_DIR:-}}}" ]]; then
    echo "error: --embed-toolchain requires PSXRECOMP_TOOLCHAIN_DIR (or TOOLCHAIN_DIR)" >&2
    exit 1
  fi
  stage_args+=(--toolchain-dir "${PSXRECOMP_TOOLCHAIN_DIR:-${TOOLCHAIN_DIR:-${BPE_TOOLCHAIN_DIR}}}")
else
  stage_args+=(--allow-no-toolchain)
fi

bash "${STAGE_SDK}" "${stage_args[@]}"

if ! grep -qE '^[[:space:]]*overlay_cache[[:space:]]*=[[:space:]]*true' "${STAGE}/game.toml"; then
  if [[ -z "${SHIP_WITHOUT_OVERLAY_CACHE_BECAUSE}" ]]; then
    echo "error: REFUSING TO PACKAGE: ${STAGE}/game.toml has no '[runtime] overlay_cache = true'." >&2
    echo "       The runtime never initialises the overlay loader without it, so every streamed" >&2
    echo "       overlay runs on the dirty-RAM interpreter for every player. Add the key, or pass" >&2
    echo "       --ship-without-overlay-cache-because '<reason>' to record why this title ships without it." >&2
    exit 1
  fi
  echo "warning: packaging without overlay_cache = true (reason: ${SHIP_WITHOUT_OVERLAY_CACHE_BECAUSE})" >&2
fi

cat >"${STAGE}/README-SETUP.txt" <<EOF
${DISPLAY_NAME} ${VERSION} — setup package
Platform: ${ARTIFACT}

One zip for first install and updates. Does NOT include disc images, retail
BIOS dumps, pre-generated game C, or a bundled build-tool pack. Emitters
(psxrecomp-game / psxrecomp-bios) and the CLI are inside psxrecomp/.
EOF

case "${ARTIFACT}" in
  windows-*)
    cat >>"${STAGE}/README-SETUP.txt" <<EOF
Standalone:
1. Install Python 3.
2. Run ${EXE_BASENAME}.
3. Provide ${DISC_HINT} and ${BIOS_HINT}.
4. Follow the Generate & rebuild wizard. On first rebuild the host downloads
   cmake-clang-v1 from RetroPortingToolKit/RetroPorting-Toolchains (or you can
   pick a local cmake-clang-v1-*.zip for offline builds). System cmake/ninja
   also works if already on PATH.

Retro uses this same zip: it harvests emitters into a shared SDK cache,
downloads the toolchain pack (or uses RETCOMM_TOOLCHAIN_DIR), and preserves
saves/user config across updates.
EOF
    ;;
  linux-*|macos-*)
    cat >>"${STAGE}/README-SETUP.txt" <<EOF
Standalone:
1. Install CMake, Ninja, Python 3, and a C/C++ compiler with your system
   package manager.
2. Make sure cmake, ninja, python3, and either clang/clang++ or gcc/g++ are
   available on PATH.
3. Run ${EXE_BASENAME}.
4. Provide ${DISC_HINT} and ${BIOS_HINT}.
5. Follow the Generate & rebuild wizard. The host checks the native build
   tools before it continues.

Retro uses this same zip. It uses the same native build tools and preserves
saves/user config across updates.
EOF
    ;;
  *)
    echo "error: unsupported setup README platform: ${ARTIFACT}" >&2
    exit 1
    ;;
esac

# --- Gate: the staged tree must be able to configure itself ----------------
# The project file/dir list is an allowlist, so any path a project adds to
# CMakeLists.txt has to be added here too. When that is missed the zip still
# builds and only fails on the user's machine, at cmake configure, with
# "Cannot find source file". Catch it at package time instead.
#
# Only unguarded references are required: a path used solely inside
# if(EXISTS "...") is optional by construction, and a glob or a path built from
# a cmake variable cannot be resolved here.
if [[ -f "${STAGE}/CMakeLists.txt" ]]; then
  cml="${STAGE}/CMakeLists.txt"
  # A CMakeLists.txt with no if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/...") guard at
  # all is normal, and grep exits 1 on no match. Under `set -e -o pipefail` that
  # status propagates out of the command substitution and kills the packager
  # here — silently, before any gate can report anything. Guard the assignment.
  guarded="$( { grep -oE 'if\(EXISTS[[:space:]]+"\$\{CMAKE_CURRENT_SOURCE_DIR\}/[^"]+"' "${cml}" \
                  || true; } | sed -E 's|.*\$\{CMAKE_CURRENT_SOURCE_DIR\}/||; s|"$||' | sort -u)"
  missing_refs=()
  while IFS= read -r rel; do
    [[ -z "${rel}" ]] && continue
    case "${rel}" in *"*"*|*"?"*|*'$'*) continue ;; esac
    if [[ -n "${guarded}" ]] && grep -qxF -- "${rel}" <<<"${guarded}"; then
      continue
    fi
    [[ -e "${STAGE}/${rel}" ]] || missing_refs+=("${rel}")
  done < <(grep -oE '\$\{CMAKE_CURRENT_SOURCE_DIR\}/[^"]+' "${cml}" \
             | sed 's|^\${CMAKE_CURRENT_SOURCE_DIR}/||' | sort -u)
  if (( ${#missing_refs[@]} )); then
    echo "error: CMakeLists.txt references paths that are not staged in the zip:" >&2
    for r in "${missing_refs[@]}"; do echo "  - ${r}" >&2; done
    echo "  add them via --project-file / --project-dir in the title's setup-host wrapper" >&2
    exit 1
  fi
fi

# Second gate: the project's own C must be able to include what it includes.
# The CMakeLists check above cannot see this — src/<game>_mods.c pulls in
# "../psx_symbols.h", a compile input nothing in CMakeLists.txt names, and a zip
# missing it fails at the first object file rather than at configure.
#
# Only project-owned staged paths are scanned. Framework trees (psxrecomp/,
# recomp-ui/) resolve their headers through -I and are not ours to police.
missing_incs=()
for rel in "${PROJECT_FILES[@]}" "${PROJECT_DIRS[@]}"; do
  [[ -e "${STAGE}/${rel}" ]] || continue
  while IFS= read -r src; do
    case "${src}" in *.c|*.cc|*.cpp|*.h|*.hpp) ;; *) continue ;; esac
    src_dir="$(dirname "${src}")"
    while IFS= read -r inc; do
      [[ -z "${inc}" ]] && continue
      # Only relative includes can name a file the zip is expected to carry.
      case "${inc}" in /*) continue ;; esac
      target="${src_dir}/${inc}"
      [[ -e "${target}" ]] && continue
      # Resolve against the stage root too (some projects include "x.h" flatly).
      [[ -e "${STAGE}/${inc}" ]] && continue
      # Finally, anything reachable through an -I path: the framework trees are
      # staged whole, so a bare "mod_plugins.h" resolves out of
      # psxrecomp/runtime/include. Match on basename — deliberately loose, since
      # a false pass here only forfeits a warning while a false failure would
      # block a good release.
      inc_base="${inc##*/}"
      if find "${STAGE}" -name "${inc_base}" -type f -print -quit 2>/dev/null | grep -q .; then
        continue
      fi
      rel_src="${src#"${STAGE}"/}"
      missing_incs+=("${inc}  (included by ${rel_src})")
    done < <(grep -oE '^[[:space:]]*#[[:space:]]*include[[:space:]]+"[^"]+"' "${src}" 2>/dev/null \
               | sed -E 's|.*"([^"]+)".*|\1|')
  done < <(find "${STAGE}/${rel}" -type f 2>/dev/null)
done
if (( ${#missing_incs[@]} )); then
  echo "error: staged project sources include files that are not in the zip:" >&2
  printf '  - %s\n' "${missing_incs[@]}" >&2
  echo "  add them via --project-file / --project-dir in the title's setup-host wrapper" >&2
  exit 1
fi

# --- Windows: Authenticode-sign what the player will run -------------------
# The host exe, its DLLs, and the emitters. A no-op without a certificate in
# the environment (see tools/ci/sign_windows.sh); fatal if one is configured
# and signing fails. Note the limit of what signing can do for a setup-host
# title: the game exe the player's own machine builds after Generate is not
# this file and carries no signature -- Smart App Control judges that build
# on its own, and only the host/wizard, emitters and DLLs shipped here are
# covered.
if [[ "${EXE_BASENAME}" == *.exe ]]; then
  SIGN_SH="${SCRIPT_DIR}/ci/sign_windows.sh"
  if [[ -f "${SIGN_SH}" ]]; then
    bash "${SIGN_SH}" "${STAGE}"
  else
    echo "note: ${SIGN_SH} missing; Windows binaries ship unsigned" >&2
  fi
fi

find "${STAGE}" -exec touch -c {} + 2>/dev/null || find "${STAGE}" -exec touch {} +

(
  cd "${STAGE}"
  if command -v zip >/dev/null 2>&1; then
    zip -r -q "${DIST}/${ZIP_NAME}" .
  else
    echo "error: zip not found" >&2
    exit 1
  fi
)

echo "Wrote ${DIST}/${ZIP_NAME}"
du -h "${DIST}/${ZIP_NAME}"