#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'

# Ensure UTF-8 locale for macOS terminals
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8

# Resolve project directory (script location)
PROJECT_DIR="$(cd "$(dirname "$0")" && pwd)"

echo "Project dir: $PROJECT_DIR"

force_delete() {
  local target="$1"
  local max_retries=3
  local retry_delay=1

  if [ ! -e "$PROJECT_DIR/$target" ]; then
    return 0
  fi

  for i in $(seq 1 $max_retries); do
    echo "Attempting to delete $target (try $i of $max_retries)"
    rm -rf "$PROJECT_DIR/$target" 2>/dev/null || true
    if [ ! -e "$PROJECT_DIR/$target" ]; then
      echo "Successfully deleted $target"
      return 0
    fi
    if [ "$i" -lt "$max_retries" ]; then
      sleep $retry_delay
      retry_delay=$((retry_delay * 2))
    fi
  done

  echo "Warning: Could not completely delete $target, some files may be in use"
  return 1
}

cd "$PROJECT_DIR"

echo "Running flutter clean..."
if ! flutter clean; then
  echo "flutter clean failed"
  exit 1
fi

echo "Removing residual files"
force_delete build || true
force_delete .dart_tool || true
force_delete pubspec.lock || true

echo "Running flutter pub get..."
if ! flutter pub get; then
  echo "flutter pub get failed"
  exit 1
fi

echo "Running build_runner (if present)..."
if ! flutter packages pub run build_runner build --delete-conflicting-outputs; then
  echo "build_runner failed or not present — continuing"
fi

echo "Building iOS release..."
if ! flutter build ios --release; then
  echo "iOS build failed"
  exit 1
fi

OUTPUT_DIR="$PROJECT_DIR/build/ios/iphoneos"
echo "Opening iOS build output directory: $OUTPUT_DIR"
if [ -d "$OUTPUT_DIR" ]; then
  open "$OUTPUT_DIR"
else
  echo "iOS build output directory does not exist: $OUTPUT_DIR"
fi

echo "All steps completed successfully!"
echo "iOS output (if built): $OUTPUT_DIR"

exit 0