#!/usr/bin/env bash
# Native Windows build from an MSYS2 UCRT64 shell (https://www.msys2.org/).
#   scripts/bootstrap_msys2.sh [repo-dir]
# Installs the UCRT64 toolchain with pacman, builds the same pinned static
# deps as the Linux cross build (curl with Schannel, ncurses with the Windows
# console patches, busybox-w32 Unicode), then a static cst-agent.exe with the
# UTF-8 manifest, runs the tests and packages dist/windows-x86_64/.
# CST_SKIP_TESTS=1 skips ctest.
set -euo pipefail

if [[ "${MSYSTEM:-}" != UCRT64 ]]; then
  echo "run this from the MSYS2 UCRT64 shell: the UTF-8 manifest needs the" \
    "UCRT runtime (MINGW64 links msvcrt)" >&2
  exit 1
fi

REPO_URL="${CST_AGENT_REPO:-https://git.whcself.xyz/WHC/CST-agent.git}"
DIR="${1:-}"
if [[ -z "$DIR" ]]; then
  if [[ -f CMakeLists.txt && -d src ]]; then
    DIR="$(pwd)"
  else
    DIR="CST-agent"
  fi
fi

pacman -S --needed --noconfirm \
  mingw-w64-ucrt-x86_64-gcc mingw-w64-ucrt-x86_64-cmake \
  mingw-w64-ucrt-x86_64-ninja make git patch tar perl zip diffutils

if [[ ! -f "$DIR/CMakeLists.txt" ]]; then
  echo "==> git clone $REPO_URL -> $DIR"
  git clone "$REPO_URL" "$DIR"
fi
cd "$DIR"

# third-party script: unprefixed native tools
export MINGW_HOST= BUILD_CC=gcc
[[ -f third_party/prefix-mingw/lib/libcurl.a ]] || scripts/build_third_party_mingw.sh curl
[[ -f third_party/prefix-mingw/lib/libncursesw.a ]] || scripts/build_third_party_mingw.sh ncurses
if [[ ! -f third_party/busybox/busybox.exe ]]; then
  scripts/build_third_party_mingw.sh busybox-w32 || scripts/fetch_busybox_w32.sh
fi

echo "==> cmake (MSYS2 UCRT64, static, TUI)"
cmake -S . -B build-msys2 -G Ninja -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_PREFIX_PATH="$PWD/third_party/prefix-mingw" \
  -DCST_WIN_STATIC=ON -DCST_BUILD_TUI=ON
cmake --build build-msys2

if [[ -z "${CST_SKIP_TESTS:-}" ]]; then
  echo "==> ctest"
  cp -f third_party/busybox/busybox.exe build-msys2/
  ctest --test-dir build-msys2 --output-on-failure
fi

echo "==> package"
CST_WIN_BUILD=build-msys2 scripts/package_windows.sh