#!/bin/bash
set -e

# Load environment variables from .env file
if [ -f .env ]; then
  export $(grep -v '^#' .env | xargs)
fi

# Configuration
VERSION="0.1.1"  # Should match MARKETING_VERSION in project
BUILD_NUMBER="1"  # Should match CURRENT_PROJECT_VERSION in project
RELEASES_DIR="./releases"
APPCAST_OUTPUT="${RELEASES_DIR}/appcast.xml"
FEED_URL="https://freno.me/api/Gaze/appcast.xml"
DMG_NAME="Gaze-${VERSION}.dmg"

# Find Sparkle generate_appcast tool
SPARKLE_BIN=$(find ~/Library/Developer/Xcode/DerivedData/Gaze-* -path "*/artifacts/sparkle/Sparkle/bin" -type d 2>/dev/null | head -1)
if [ -z "$SPARKLE_BIN" ]; then
    echo "⚠️  Warning: Sparkle bin directory not found"
    echo "Appcast generation will be skipped"
    SPARKLE_BIN=""
fi

# Create releases directory
mkdir -p "$RELEASES_DIR"

# Remove old DMG if exists
rm -f "$DMG_NAME"

echo "Creating DMG..."
create-dmg \
  --volname "Gaze Installer" \
  --eula "./LICENSE" \
  --window-pos 200 120 \
  --window-size 600 400 \
  --icon-size 100 \
  --background "./dmg_background.png" \
  --icon "Gaze.app" 160 200 \
  --app-drop-link 440 200 \
  "$DMG_NAME" \
  "./Gaze.app"

# Copy DMG to releases directory
echo "Copying DMG to releases directory..."
cp "$DMG_NAME" "$RELEASES_DIR/"

# Generate appcast if Sparkle tools are available
if [ -n "$SPARKLE_BIN" ] && [ -d "$SPARKLE_BIN" ]; then
    echo ""
    echo "Generating appcast..."
    
    # Generate appcast with download URL prefix
    "$SPARKLE_BIN/generate_appcast" \
        --download-url-prefix "https://freno.me/downloads/" \
        "$RELEASES_DIR"
    
    # Verify appcast was generated
    if [ -f "$APPCAST_OUTPUT" ]; then
        echo "✅ Appcast generated successfully"
        echo "📋 Appcast location: $APPCAST_OUTPUT"
        
        # Show signature verification
        if grep -q "edSignature" "$APPCAST_OUTPUT"; then
            echo "✅ EdDSA signature verified in appcast"
        else
            echo "⚠️  Warning: No EdDSA signature found in appcast"
        fi
    else
        echo "❌ Failed to generate appcast"
    fi
else
    echo ""
    echo "⚠️  Skipping appcast generation (Sparkle tools not found)"
    echo "To generate appcast manually, run:"
    echo "  ./generate_appcast --download-url-prefix 'https://freno.me/downloads/' '$RELEASES_DIR'"
fi

# Upload to AWS S3 if environment variables are set
if [ -n "$AWS_ACCESS_KEY_ID" ] && [ -n "$AWS_SECRET_ACCESS_KEY" ] && [ -n "$AWS_BUCKET_NAME" ] && [ -n "$AWS_REGION" ]; then
  echo ""
  echo "Uploading to S3 bucket: $AWS_BUCKET_NAME..."
  
  # Export AWS credentials for aws-cli
  export AWS_ACCESS_KEY_ID="$AWS_ACCESS_KEY_ID"
  export AWS_SECRET_ACCESS_KEY="$AWS_SECRET_ACCESS_KEY"
  export AWS_DEFAULT_REGION="$AWS_REGION"
  
  # Upload DMG to S3
  aws s3 cp "$RELEASES_DIR/$DMG_NAME" "s3://$AWS_BUCKET_NAME/downloads/$DMG_NAME" --region "$AWS_REGION"
  
  # Upload appcast if it exists
  if [ -f "$APPCAST_OUTPUT" ]; then
      aws s3 cp "$APPCAST_OUTPUT" "s3://$AWS_BUCKET_NAME/api/Gaze/appcast.xml" --region "$AWS_REGION"
      echo "✅ Appcast uploaded to S3"
  fi
  
  echo "✅ Upload complete!"
  echo "  DMG: s3://$AWS_BUCKET_NAME/downloads/$DMG_NAME"
  echo "  Appcast: s3://$AWS_BUCKET_NAME/api/Gaze/appcast.xml"
else
  echo ""
  echo "⚠️  Skipping S3 upload - AWS credentials not found in .env"
fi

echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "Release artifacts created:"
echo "  📦 DMG: $RELEASES_DIR/$DMG_NAME"
if [ -f "$APPCAST_OUTPUT" ]; then
    echo "  📋 Appcast: $APPCAST_OUTPUT"
fi
echo ""
echo "Next steps:"
echo "  1. Upload DMG to: https://freno.me/downloads/$DMG_NAME"
echo "  2. Upload appcast to: $FEED_URL"
echo "  3. Verify appcast is accessible and valid"
echo "  4. Test update from previous version"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"