#!/bin/bash
# usage:
#   ./scripts/build_ios.sh --output /absolute/path/to/output [extra flutter build args...]

set -euo pipefail

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

DEFAULT_BUILD_DIR="$PROJECT_ROOT/build/ios_release"
OUTPUT_DIR="$DEFAULT_BUILD_DIR"
EXTRA_ARGS=()

while [[ $# -gt 0 ]]; do
  case "$1" in
    --output=*)
      OUTPUT_DIR="${1#*=}"
      shift
      ;;
    --output)
      if [[ $# -lt 2 ]]; then
        echo "参数错误: --output 需要一个路径" >&2
        exit 1
      fi
      OUTPUT_DIR="$2"
      shift 2
      ;;
    *)
      EXTRA_ARGS+=("$1")
      shift
      ;;
  esac
done

mkdir -p "$OUTPUT_DIR"

pushd "$PROJECT_ROOT" >/dev/null
echo "📦 清理旧构建..."
flutter clean

echo "📚 获取依赖..."
flutter pub get

echo "🚀 开始构建 iOS 安装包..."
if [[ ${#EXTRA_ARGS[@]} -gt 0 ]]; then
  flutter build ios --release "${EXTRA_ARGS[@]}"
else
  flutter build ios --release
fi

# iOS build output is typically in build/ios/iphoneos/
BUILD_OUTPUT_DIR="$PROJECT_ROOT/build/ios/iphoneos"
if [[ -d "$BUILD_OUTPUT_DIR" ]]; then
  echo "📦 复制构建产物到输出目录..."
  mkdir -p "$OUTPUT_DIR"
  cp -R "$BUILD_OUTPUT_DIR"/* "$OUTPUT_DIR/" 2>/dev/null || true
  echo "✅ 构建完成，产物目录：$OUTPUT_DIR"
else
  echo "⚠️  警告: 未找到预期的构建输出目录 $BUILD_OUTPUT_DIR"
  echo "构建产物可能在：$PROJECT_ROOT/build/ios/"
fi
popd >/dev/null