#!/usr/bin/env bash

# OpsXShell v2.1.x native release builder.
# Builds only for the current host OS; macOS and Windows installers must be
# produced and verified on their respective systems.

set -Eeuo pipefail

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT_DIR"

VERSION_ARG=""
TARGET="auto"
CHECK_MODE="full"

usage() {
  cat <<'EOF'
OpsXShell 原生安装包构建脚本

用法：
  ./scripts/build.sh [v2.1.x] [目标] [选项]

目标：
  auto         根据当前系统自动选择（默认）
  mac-arm64    macOS Apple Silicon，生成 .app 和 .dmg
  mac-x64      macOS Intel，生成 .app 和 .dmg
  win-x64      Windows x86_64，生成 NSIS/MSI 安装包
  linux-x64    Linux x86_64，生成 deb/rpm/AppImage
  linux-arm64  Linux aarch64，生成 deb/rpm/AppImage

选项：
  --quick      构建前只运行快速门禁
  --skip-checks 跳过门禁，仅用于本地重复打包
  -h, --help   显示帮助

示例：
  ./scripts/build.sh
  ./scripts/build.sh v2.1.0 mac-arm64
  ./scripts/build.sh v2.1.1 mac-arm64 --quick

说明：
  - 显式传入新版本时，会同步 package.json、package-lock.json、
    Cargo.toml、Cargo.lock 和 tauri.conf.json，但不会创建或推送 Git tag。
  - Windows 包必须在 Windows 上构建；macOS 包必须在 macOS 上构建；Linux 包必须在 Linux 上构建。
  - 正式签名构建请先设置 REQUIRE_SIGNING=true 及对应签名环境变量。
EOF
}

fail() {
  printf '\n[build] ERROR: %s\n' "$*" >&2
  exit 1
}

log() {
  printf '\n[build] %s\n' "$*"
}

while [ "$#" -gt 0 ]; do
  case "$1" in
    -h|--help)
      usage
      exit 0
      ;;
    --quick)
      CHECK_MODE="quick"
      ;;
    --skip-checks)
      CHECK_MODE="none"
      ;;
    auto|mac-arm64|mac-x64|win-x64|linux-x64|linux-arm64)
      TARGET="$1"
      ;;
    v[0-9]*|[0-9]*)
      [ -z "$VERSION_ARG" ] || fail "只能指定一个版本号"
      VERSION_ARG="${1#v}"
      ;;
    *)
      fail "未知参数：$1（使用 ./scripts/build.sh --help 查看用法）"
      ;;
  esac
  shift
done

for command in node npm npx cargo rustc; do
  command -v "$command" >/dev/null 2>&1 || fail "缺少构建依赖：$command"
done

CURRENT_VERSION="$(node -p "require('./package.json').version")"
VERSION="${VERSION_ARG:-$CURRENT_VERSION}"

if ! printf '%s' "$VERSION" | grep -Eq '^2\.1\.[0-9]+([.-][0-9A-Za-z.-]+)?$'; then
  fail "版本必须是 v2.1.x 语义版本，当前输入：$VERSION"
fi

HOST_OS="$(uname -s)"
HOST_ARCH="$(uname -m)"
if [ "$TARGET" = "auto" ]; then
  case "$HOST_OS/$HOST_ARCH" in
    Darwin/arm64|Darwin/aarch64) TARGET="mac-arm64" ;;
    Darwin/x86_64) TARGET="mac-x64" ;;
    MINGW*/*|MSYS*/*|CYGWIN*/*) TARGET="win-x64" ;;
    Linux/x86_64) TARGET="linux-x64" ;;
    Linux/aarch64|Linux/arm64) TARGET="linux-arm64" ;;
    *) fail "当前平台 $HOST_OS/$HOST_ARCH 不支持自动打包，请显式指定目标" ;;
  esac
fi

case "$TARGET" in
  mac-arm64)
    [ "$HOST_OS" = "Darwin" ] || fail "mac-arm64 必须在 macOS 上构建"
    RUST_TARGET="aarch64-apple-darwin"
    RELEASE_PLATFORM="macos"
    OUTPUT_PLATFORM="macos-arm64"
    ;;
  mac-x64)
    [ "$HOST_OS" = "Darwin" ] || fail "mac-x64 必须在 macOS 上构建"
    RUST_TARGET="x86_64-apple-darwin"
    RELEASE_PLATFORM="macos"
    OUTPUT_PLATFORM="macos-x64"
    ;;
  win-x64)
    case "$HOST_OS" in
      MINGW*|MSYS*|CYGWIN*) ;;
      *) fail "win-x64 必须在 Windows 上构建，macOS 交叉编译不能替代 Windows 实机打包" ;;
    esac
    RUST_TARGET="x86_64-pc-windows-msvc"
    RELEASE_PLATFORM="windows"
    OUTPUT_PLATFORM="windows-x64"
    ;;
  linux-x64)
    [ "$HOST_OS" = "Linux" ] || fail "linux-x64 必须在 Linux 上构建"
    RUST_TARGET="x86_64-unknown-linux-gnu"
    RELEASE_PLATFORM="linux"
    OUTPUT_PLATFORM="linux-x64"
    ;;
  linux-arm64)
    [ "$HOST_OS" = "Linux" ] || fail "linux-arm64 必须在 Linux 上构建"
    RUST_TARGET="aarch64-unknown-linux-gnu"
    RELEASE_PLATFORM="linux"
    OUTPUT_PLATFORM="linux-arm64"
    ;;
esac

if command -v rustup >/dev/null 2>&1 && ! rustup target list --installed | grep -Fxq "$RUST_TARGET"; then
  fail "Rust target 未安装：$RUST_TARGET；请先运行 rustup target add $RUST_TARGET"
fi

if [ -n "$VERSION_ARG" ] && [ "$VERSION" != "$CURRENT_VERSION" ]; then
  log "同步版本号到 v$VERSION"
  node scripts/set-version.mjs "$VERSION"
fi

node scripts/set-version.mjs --check "$VERSION"

if [ ! -d node_modules ]; then
  log "安装锁定依赖"
  npm ci
fi

log "OpsXShell v$VERSION · $TARGET · $(git rev-parse --short HEAD 2>/dev/null || printf unknown)"

case "$CHECK_MODE" in
  full)
    log "运行完整发布门禁"
    npm run acceptance:full
    ;;
  quick)
    log "运行快速发布门禁"
    npm run acceptance:quick
    ;;
  none)
    log "已按参数跳过构建前门禁"
    ;;
esac

node scripts/release-preflight.mjs "$RELEASE_PLATFORM"

log "构建原生安装包"
TAURI_ARGS=(--ci --target "$RUST_TARGET")
CODESIGN_WRAP_DIR=""
if [ "$RELEASE_PLATFORM" = "macos" ]; then
  TAURI_ARGS+=(--bundles app,dmg)
  CODESIGN_WRAP_DIR="$(mktemp -d "${TMPDIR:-/tmp}/opsx-codesign.XXXXXX")"
  cp "$ROOT_DIR/scripts/macos-codesign-wrapper.sh" "$CODESIGN_WRAP_DIR/codesign"
  chmod +x "$CODESIGN_WRAP_DIR/codesign"
  export PATH="$CODESIGN_WRAP_DIR:$PATH"
  log "macOS 签名使用 HTTP 时间戳（可用 CODESIGN_USE_SYSTEM_TIMESTAMP=1 关闭）"
fi
if [ -f "$ROOT_DIR/src-tauri/tauri.signing.conf.json" ]; then
  TAURI_ARGS+=(--config src-tauri/tauri.signing.conf.json)
  log "使用 src-tauri/tauri.signing.conf.json 签名"
fi
npx tauri build "${TAURI_ARGS[@]}"
if [ -n "$CODESIGN_WRAP_DIR" ]; then
  rm -rf "$CODESIGN_WRAP_DIR"
fi

BUNDLE_ROOT="${CARGO_TARGET_DIR:-$ROOT_DIR/src-tauri/target}/$RUST_TARGET/release/bundle"
node scripts/verify-release.mjs "$RELEASE_PLATFORM" "$BUNDLE_ROOT"

OUTPUT_DIR="$ROOT_DIR/release/v$VERSION/$OUTPUT_PLATFORM"
rm -rf "$OUTPUT_DIR"
mkdir -p "$OUTPUT_DIR"
shopt -s nullglob

COPIED_ARTIFACTS=()
if [ "$RELEASE_PLATFORM" = "macos" ]; then
  SOURCE_ARTIFACTS=("$BUNDLE_ROOT"/dmg/*.dmg)
elif [ "$RELEASE_PLATFORM" = "linux" ]; then
  SOURCE_ARTIFACTS=("$BUNDLE_ROOT"/deb/*.deb "$BUNDLE_ROOT"/rpm/*.rpm "$BUNDLE_ROOT"/appimage/*.AppImage)
else
  SOURCE_ARTIFACTS=("$BUNDLE_ROOT"/nsis/*.exe "$BUNDLE_ROOT"/msi/*.msi "$BUNDLE_ROOT"/wix/*.msi)
fi

[ "${#SOURCE_ARTIFACTS[@]}" -gt 0 ] || fail "构建完成但未找到安装包：$BUNDLE_ROOT"
for artifact in "${SOURCE_ARTIFACTS[@]}"; do
  destination="$OUTPUT_DIR/$(basename "$artifact")"
  cp "$artifact" "$destination"
  COPIED_ARTIFACTS+=("$destination")
done

CHECKSUM_FILE="$OUTPUT_DIR/SHA256SUMS.txt"
if command -v shasum >/dev/null 2>&1; then
  (
    cd "$OUTPUT_DIR"
    names=()
    for artifact in "${COPIED_ARTIFACTS[@]}"; do names+=("$(basename "$artifact")"); done
    shasum -a 256 "${names[@]}" > SHA256SUMS.txt
  )
elif command -v sha256sum >/dev/null 2>&1; then
  (
    cd "$OUTPUT_DIR"
    names=()
    for artifact in "${COPIED_ARTIFACTS[@]}"; do names+=("$(basename "$artifact")"); done
    sha256sum "${names[@]}" > SHA256SUMS.txt
  )
else
  node --input-type=module -e '
    import { createHash } from "node:crypto";
    import { readFileSync } from "node:fs";
    import { basename } from "node:path";
    for (const path of process.argv.slice(1)) {
      console.log(`${createHash("sha256").update(readFileSync(path)).digest("hex")}  ${basename(path)}`);
    }
  ' "${COPIED_ARTIFACTS[@]}" > "$CHECKSUM_FILE"
fi

log "构建完成：$OUTPUT_DIR"
ls -lh "$OUTPUT_DIR"
printf '\n[build] SHA-256\n'
cat "$CHECKSUM_FILE"