#!/usr/bin/env bash
# Batch 2A gate (docs/PORT-PLAN.md): build port_logic, port_platform + the header self-containment gate per
# platform. A platform whose toolchain is missing prints BLOCKED and never counts as a pass.
#
#   script/port_gate.sh [macos|android|ios|windows|linux ...]   (default: all)
#
# Build trees go to $MT_PORT_GATE_DIR (default build-port-gate/). Toolchains:
#   android  ANDROID_NDK_HOME / ANDROID_NDK_ROOT (NDK 27.2)
#   ios      Xcode with the iphoneos SDK
#   windows  MT_WIN_CXX (default x86_64-w64-mingw32-g++); MSVC is covered on a Windows host
#   linux    MT_LINUX_TOOLCHAIN (a CMake toolchain file), or a Linux host
set -uo pipefail
cd "$(dirname "$0")/.."

OUT="${MT_PORT_GATE_DIR:-build-port-gate}"
PLATFORMS=("$@")
[ ${#PLATFORMS[@]} -eq 0 ] && PLATFORMS=(macos android ios windows linux)
PORT_ONLY=(-DMTGODOT_BUILD_EXTENSION=OFF -DMTGODOT_BUILD_PORT=ON)
declare -a RESULTS=()

run() {  # name, build dir, configure args...
	local name="$1" dir="$2"; shift 2
	if cmake -S . -B "$dir" "$@" >"$dir.log" 2>&1 \
		&& cmake --build "$dir" --target port_platform ${BUILD_EXTRA[@]+"${BUILD_EXTRA[@]}"} >>"$dir.log" 2>&1; then
		RESULTS+=("$name PASS")
	else
		RESULTS+=("$name FAIL (see $dir.log)")
	fi
}

mkdir -p "$OUT"
for p in "${PLATFORMS[@]}"; do
	BUILD_EXTRA=()
	case "$p" in
	macos)
		BUILD_EXTRA=(--target port_common_test)
		run macos "$OUT/macos" "${PORT_ONLY[@]}" -DBUILD_TESTING=ON
		last=$((${#RESULTS[@]} - 1))
		if [[ "${RESULTS[$last]}" == *PASS ]] && ! ctest --test-dir "$OUT/macos" -R '^port\.' --output-on-failure >>"$OUT/macos.log" 2>&1; then
			RESULTS[$last]="macos FAIL (port tests, see $OUT/macos.log)"
		fi
		;;
	android)
		NDK="${ANDROID_NDK_ROOT:-${ANDROID_NDK_HOME:-}}"
		SDK="${ANDROID_HOME:-${ANDROID_SDK_ROOT:-$HOME/Library/Android/sdk}}"
		if [ -z "$NDK" ] && [ -d "$SDK/ndk" ]; then
			NDK="$SDK/ndk/$(ls -1 "$SDK/ndk" | sort -V | tail -1)"
		fi
		if [ -z "$NDK" ] || [ ! -f "$NDK/build/cmake/android.toolchain.cmake" ]; then
			RESULTS+=("android BLOCKED (no NDK)"); continue
		fi
		run android "$OUT/android" "${PORT_ONLY[@]}" -DBUILD_TESTING=OFF \
			-DCMAKE_TOOLCHAIN_FILE="$NDK/build/cmake/android.toolchain.cmake" \
			-DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-24
		;;
	ios)
		if ! xcrun --sdk iphoneos --show-sdk-path >/dev/null 2>&1; then
			RESULTS+=("ios BLOCKED (no iphoneos SDK)"); continue
		fi
		BUILD_EXTRA=(-- -sdk iphoneos CODE_SIGNING_ALLOWED=NO)
		run ios "$OUT/ios" "${PORT_ONLY[@]}" -DBUILD_TESTING=OFF -G Xcode -DCMAKE_SYSTEM_NAME=iOS \
			-DCMAKE_OSX_ARCHITECTURES=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=14.0
		;;
	windows)
		CXX_W="${MT_WIN_CXX:-x86_64-w64-mingw32-g++}"
		if [[ "$(uname -s)" != MINGW* ]] && ! command -v "$CXX_W" >/dev/null; then
			RESULTS+=("windows BLOCKED (no $CXX_W)"); continue
		fi
		run windows "$OUT/windows" "${PORT_ONLY[@]}" -DBUILD_TESTING=OFF -DCMAKE_SYSTEM_NAME=Windows \
			-DCMAKE_C_COMPILER="${CXX_W%g++}gcc" -DCMAKE_CXX_COMPILER="$CXX_W"
		;;
	linux)
		if [ "$(uname -s)" = Linux ]; then
			BUILD_EXTRA=(--target port_common_test)
			run linux "$OUT/linux" "${PORT_ONLY[@]}" -DBUILD_TESTING=ON
		elif [ -n "${MT_LINUX_TOOLCHAIN:-}" ]; then
			run linux "$OUT/linux" "${PORT_ONLY[@]}" -DBUILD_TESTING=OFF -DCMAKE_TOOLCHAIN_FILE="$MT_LINUX_TOOLCHAIN"
		else
			RESULTS+=("linux BLOCKED (not a Linux host and no MT_LINUX_TOOLCHAIN)")
		fi
		;;
	*) RESULTS+=("$p UNKNOWN") ;;
	esac
done

printf '%s\n' "${RESULTS[@]}"
! printf '%s\n' "${RESULTS[@]}" | grep -q FAIL