#!/usr/bin/env bash
# compile-windows.sh <tag>  —  build Flutter Windows desktop app, package into
# dist/ via the existing Inno Setup script (client/windows/installer/pangolin.iss).
#
# Mirrors ~/code/jiu/scripts/ci/compile-windows.sh's short-path fix, adapted:
#   - version derived via pangolin's ver_from_tag, not jiu's ad-hoc strip.
#   - pangolin's Windows client does NOT embed libbox — it bundles a
#     downloaded sing-box.exe + wintun.dll as a subprocess (see
#     client/windows/README.md, CLAUDE.md "client/ 移动端"'s sibling desktop
#     note). Those are fetched by app/kernel/fetch-desktop-bin.sh, NOT built
#     by scripts/build-libbox.sh — no JDK/NDK/gomobile needed on Windows.
#   - pangolin already has a working local packaging path:
#     client/windows/build.ps1 + client/windows/installer/pangolin.iss. This
#     script re-implements that flow in bash (matching the repo's
#     jiu-mirrored bash-script-per-platform convention) rather than shelling
#     out to build.ps1, so it can apply jiu's short-path fix below.
#   - jiu's short-path fix: the Forgejo Windows runner checks out under
#     C:\Windows\System32\config\systemprofile\.cache\act\...\hostexecutor,
#     which triggers WOW64 filesystem redirection that breaks CMake/Flutter
#     native paths. jiu copies client/ to C:\jiu-build\client and builds
#     there. pangolin's windows/CMakeLists.txt additionally resolves the
#     kernel binaries via a path RELATIVE to CMAKE_SOURCE_DIR
#     (client/windows/../../app/kernel/dist/desktop/windows-*  — see
#     client/windows/CMakeLists.txt "Pangolin sing-box kernel" section), so
#     this script must copy app/kernel/dist alongside client/ preserving the
#     SAME relative layout (BUILD_ROOT/client + BUILD_ROOT/app/kernel/dist),
#     not just client/ alone like jiu does — jiu has no such cross-directory
#     kernel reference.
#   - dart-define is PANGOLIN_API_URL, not jiu's BASE_URL/PUBLIC_URL/APP_VERSION.
#   - pangolin.iss hardcodes `#define MyAppVersion "1.0.47"` (no #ifndef guard
#     like jiu's jiu-installer.iss), so ISCC's /D command-line override would
#     be silently ignored. This script `sed`s the version into the copied
#     .iss file instead of passing /DAppVer.
#   - output dist/pangolin-windows-x64-setup.exe (stable name — the .iss's
#     own OutputBaseFilename is version-suffixed "pangolin-setup-<ver>.exe",
#     so this script copies+renames it to the stable name deploy-client.sh
#     and release-client.sh expect).
#   - unsigned (like jiu) — first install shows a SmartScreen warning; no
#     code-signing cert configured (see report).
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=scripts/ci/_env.sh
. "${SCRIPT_DIR}/_env.sh"

TAG="${1:?usage: compile-windows.sh <tag>}"

ver_file="/tmp/compile_windows_ver.$$"
ver_from_tag client "$TAG" > "$ver_file"
VER=""
read -r VER < "$ver_file" || true  # 无结尾换行的 read 退出码,见 compile-android.sh 同注释
rm -f "$ver_file"

echo "==> compile-windows: tag=${TAG} version=${VER}"

API_URL="${PANGOLIN_API_URL:-https://api.yanmeiai.com}"

# ── [1/4] fetch sing-box.exe + wintun.dll into the ORIGINAL checkout ───────
# Must run before the short-path copy below (step 2), so app/kernel/dist/
# exists to be copied alongside client/.
echo "==> compile-windows: fetching sing-box.exe + wintun.dll"
bash app/kernel/fetch-desktop-bin.sh windows amd64

# ── [2/4] copy client/ + app/kernel/dist to a short path ───────────────────
BUILD_ROOT="/c/pangolin-build"
BUILD_CLIENT="${BUILD_ROOT}/client"

echo "==> copying client/ + app/kernel/dist to ${BUILD_ROOT}"
rm -rf "$BUILD_ROOT"
mkdir -p "${BUILD_ROOT}/app/kernel"
cp -r client "$BUILD_CLIENT"
cp -r app/kernel/dist "${BUILD_ROOT}/app/kernel/dist"

# `cp -r` turns Flutter's plugin symlinks (windows/flutter/ephemeral/.plugin_symlinks/*)
# into real directories. flutter's createPluginSymlinks only cleans up *symlinks*, so it
# then fails to create a symlink over the copied real dir (errno 183 / PathExists).
# Drop all regenerable artifacts so the build below recreates them cleanly (same fix as jiu).
rm -rf "${BUILD_CLIENT}/windows/flutter/ephemeral" \
       "${BUILD_CLIENT}/.dart_tool" \
       "${BUILD_CLIENT}/build"

# ── [3/4] build ──────────────────────────────────────────────────────────────
# NOTE(controller): `flutter create` on an existing project only fills in
# scaffolding it manages (ephemeral/, generated_plugins.cmake, ...) and should
# not overwrite files that already exist — jiu relies on exactly this. But
# pangolin's windows/ tree is more heavily customized than jiu's (CMakeLists
# kernel-bundling block, runner.exe.manifest requireAdministrator + the
# /MANIFESTUAC:NO link flag — see client/windows/README.md "已知坑"). Verify
# on first real CI run that none of those get clobbered.
pushd "$BUILD_CLIENT" > /dev/null
flutter create --platforms=windows . --project-name pangolin_vpn
flutter build windows --release "--dart-define=PANGOLIN_API_URL=${API_URL}"
popd > /dev/null

# ── [4/4] package with Inno Setup (existing client/windows/installer/pangolin.iss) ──
ISCC=""
for c in "/c/Program Files (x86)/Inno Setup 6/ISCC.exe" "/c/Program Files/Inno Setup 6/ISCC.exe"; do
  if [ -f "$c" ]; then ISCC="$c"; break; fi
done
if [ -z "$ISCC" ]; then
  echo "ERROR: Inno Setup (ISCC) not found. Install Inno Setup 6 on this runner first." >&2
  exit 1
fi

ISS="${BUILD_CLIENT}/windows/installer/pangolin.iss"
# pangolin.iss hardcodes MyAppVersion (no #ifndef guard) — sed it to match the
# release tag rather than relying on an ISCC /D override (which would be
# shadowed by the unconditional #define — see header note above).
sed -i "s/^#define MyAppVersion .*/#define MyAppVersion \"${VER}\"/" "$ISS"

echo "==> building installer with Inno Setup (version ${VER})"
# MSYS_NO_PATHCONV / MSYS2_ARG_CONV_EXCL disable Git Bash's automatic conversion
# of paths, matching jiu's ISCC invocation fix.
MSYS_NO_PATHCONV=1 MSYS2_ARG_CONV_EXCL='*' "$ISCC" "$ISS"

# pangolin.iss has no explicit OutputDir -> Inno defaults to {src}\Output
# (relative to the .iss file), filename OutputBaseFilename=pangolin-setup-<ver>.
mkdir -p dist
SETUP_SRC="C:\\pangolin-build\\client\\windows\\installer\\Output\\pangolin-setup-${VER}.exe"
echo "==> copying installer -> dist/pangolin-windows-x64-setup.exe"
powershell -NoProfile -Command \
  "Copy-Item '${SETUP_SRC}' 'dist\\pangolin-windows-x64-setup.exe' -Force"

echo "==> compile-windows: done — dist/ contents:"
ls -lh dist/