#!/usr/bin/env bash

# Source the iOS permission handler utility
source "$(dirname "${BASH_SOURCE[0]}")/../../../utils/ios_permission_handler.sh"

function add_google_signin_ios_config() {
  DEST_DIR="${FLUTTER_PROJECT_DIR}"
  if [ -z "$DEST_DIR" ]; then
    echo "❌ FLUTTER_PROJECT_DIR is not set. Please set it to your Flutter project directory."
    exit 1
  fi

  cd "$DEST_DIR" || exit 1

  echo "🛠️ Adding Sign-In configuration to Info.plist in $DEST_DIR/ios/Runner"

  if [ ! -d "$DEST_DIR/ios/Runner" ]; then
    echo "❌ iOS Runner directory not found in $DEST_DIR. Please ensure you have an iOS project set up."
    exit 1
  fi

  PLIST_FILE="$DEST_DIR/ios/Runner/Info.plist"
  if [ ! -f "$PLIST_FILE" ]; then
    echo "❌ Info.plist not found at $PLIST_FILE"
    exit 1
  fi

  if ! command -v gum &> /dev/null; then
    echo "❌ 'gum' is not installed. Install it from https://github.com/charmbracelet/gum"
    exit 1
  fi

  echo "🧾 Found Info.plist — ready to inject configuration."

  # Detect auth package(s) from pubspec.yaml
  AUTH_PACKAGES=()
  if grep -q "firebase_auth:" "$DEST_DIR/pubspec.yaml"; then
    AUTH_PACKAGES+=("firebase_auth")
  fi
  if grep -q "supabase_flutter:" "$DEST_DIR/pubspec.yaml"; then
    AUTH_PACKAGES+=("supabase_flutter")
  fi

  if [ ${#AUTH_PACKAGES[@]} -ne 0 ]; then
    echo "ℹ️ Detected authentication package(s): ${AUTH_PACKAGES[*]}"
  fi

  # Prompt for required values
  if [[ " ${AUTH_PACKAGES[*]} " == *"firebase_auth"* ]]; then
    IOS_CLIENT_ID=$(gum input --placeholder "Enter your iOS Client ID (GIDClientID)")
    REVERSED_CLIENT_ID=$(gum input --placeholder "Enter your Reversed Client ID (from GoogleService-Info.plist)")

    # Add iOS Client ID permission using safe handler
    add_ios_permission_safe "$PLIST_FILE" "GIDClientID" "$IOS_CLIENT_ID"

    # Add URL scheme using safe handler
    add_url_scheme_safe "$PLIST_FILE" "$REVERSED_CLIENT_ID" "Google Sign-in URL Scheme (Firebase Auth)"

  elif [[ " ${AUTH_PACKAGES[*]} " == *"supabase_flutter"* ]]; then
    REVERSED_CLIENT_ID=$(gum input --placeholder "Enter your Reversed Client ID (from GoogleService-Info.plist)")

    # Add URL scheme using safe handler
    add_url_scheme_safe "$PLIST_FILE" "$REVERSED_CLIENT_ID" "Google Sign-in URL Scheme (Supabase)"
  fi

  echo "✅ Successfully updated Info.plist with Google Sign-In config for: ${AUTH_PACKAGES[*]}"
  echo "📂 Updated Info.plist at $PLIST_FILE"

  # Navigate back to the original directory
  echo "🔙 Returning to the original directory..."
  echo
  echo
  cd - >/dev/null || exit 1
}

export -f add_google_signin_ios_config