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

set -euo pipefail

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

DEFAULT_OUTPUT_DIR="$PROJECT_ROOT/build/ios_release"
OUTPUT_DIR="$DEFAULT_OUTPUT_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 IPA..."
if [[ ${#EXTRA_ARGS[@]} -gt 0 ]]; then
  flutter build ipa --release "${EXTRA_ARGS[@]}"
else
  flutter build ipa --release
fi

# IPA build output is typically in build/ios/ipa/
IPA_DIR="$PROJECT_ROOT/build/ios/ipa"
BUILT_IPA="$(find "$IPA_DIR" -maxdepth 1 -name '*.ipa' -print | head -n 1)"

if [[ -z "$BUILT_IPA" || ! -f "$BUILT_IPA" ]]; then
  echo "❌ 错误: 未找到构建出的 IPA 文件" >&2
  echo "构建产物目录：$IPA_DIR" >&2
  exit 1
fi

# Determine target path
if [[ "$OUTPUT_DIR" == *.ipa ]]; then
  # Output is a file path
  TARGET_PATH="$OUTPUT_DIR"
  mkdir -p "$(dirname "$TARGET_PATH")"
else
  # Output is a directory
  mkdir -p "$OUTPUT_DIR"
  TARGET_PATH="$OUTPUT_DIR/$(basename "$BUILT_IPA")"
fi

cp "$BUILT_IPA" "$TARGET_PATH"
echo "✅ 构建完成，IPA 已保存到：$TARGET_PATH"
popd >/dev/null