#!/bin/bash
set -e

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

# Load .env file
if [ -f "$PROJECT_ROOT/.env.local" ]; then
  set -a
  source "$PROJECT_ROOT/.env.local"
  set +a
elif [ -f "$PROJECT_ROOT/.env" ]; then
  set -a
  source "$PROJECT_ROOT/.env"
  set +a
fi

PROFILE="${1:-debug}"
WEAR_DIR="$PROJECT_ROOT/targets/wearos"
FIREBASE_APP_ID="${FIREBASE_WEAR_APP_ID:-}"

# Read version from app.json (single source of truth)
VERSION=$(node -p "require('./app.json').expo.version")
WEAR_OFFSET=50000000
CODE=$(echo "$VERSION" | awk -F. '{printf "%d%02d%02d", $1, $2, $3}')
VERSION_CODE=$((CODE + WEAR_OFFSET))

cd "$WEAR_DIR"

echo "Building WearOS ($PROFILE) v$VERSION ($VERSION_CODE)..."

if [ "$PROFILE" = "release" ]; then
  if [ ! -f "$WEAR_DIR/../credentials.json" ]; then
    echo "credentials.json not found. Downloading from EAS..."
    cd "$PROJECT_ROOT"
    eas credentials --platform android --non-interactive 2>/dev/null || {
      echo "Auto-download failed. Run manually:"
      echo "  eas credentials --platform android"
      echo "  → Choose 'credentials.json: Upload/Download credentials'"
      echo "  → Choose 'Download credentials from EAS to credentials.json'"
      echo "  Then: cp credentials.json targets/wearos/credentials.json"
      exit 1
    }
    cp credentials.json "$WEAR_DIR/credentials.json"
    echo "credentials.json copied to targets/wearos/"
    cd "$WEAR_DIR"
  fi
  ./gradlew assembleRelease -PversionName="$VERSION" -PversionCode="$VERSION_CODE"
  APK_PATH="app/build/outputs/apk/release/app-release.apk"
else
  ./gradlew assembleDebug -PversionName="$VERSION" -PversionCode="$VERSION_CODE"
  APK_PATH="app/build/outputs/apk/debug/app-debug.apk"
fi

if [ ! -f "$APK_PATH" ]; then
  echo "Error: APK not found at $APK_PATH"
  exit 1
fi

APK_SIZE=$(du -h "$APK_PATH" | cut -f1)
echo "Build complete: $APK_PATH ($APK_SIZE)"

if [ -n "$FIREBASE_APP_ID" ]; then
  if ! command -v firebase &> /dev/null; then
    echo "Error: firebase CLI not found. Install with: npm install -g firebase-tools"
    exit 1
  fi

  RELEASE_NOTES="${2:-}"
  CMD=(firebase appdistribution:distribute "$APK_PATH" --app "$FIREBASE_APP_ID" --groups testers)

  if [ -n "$RELEASE_NOTES" ]; then
    CMD+=(--release-notes "$RELEASE_NOTES")
  fi

  echo "Uploading to Firebase App Distribution..."
  "${CMD[@]}"
  echo "Upload complete"
else
  echo "Set FIREBASE_WEAR_APP_ID to upload to Firebase App Distribution"
  echo "  export FIREBASE_WEAR_APP_ID=1:123456789:android:abc123"
fi