#!/usr/bin/env bash
# publish-apk.sh — Build release APK and update OTA server files.
# Usage: ./deploy/publish-apk.sh [changelog message]
# Make executable: chmod +x deploy/publish-apk.sh

set -euo pipefail

REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
OTA_DIR="$REPO_ROOT/deploy/ota-server/public"
VERSION_FILE="$OTA_DIR/version.json"
APK_SOURCE="$REPO_ROOT/apps/remote/build/app/outputs/flutter-apk/app-release.apk"
APK_DEST="$OTA_DIR/mirror-os-remote.apk"

CHANGELOG="${1:-Bug fixes and improvements}"

# --- Build the release APK ---
echo "Building release APK..."
cd "$REPO_ROOT/apps/remote"
flutter build apk --release

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

# --- Copy APK to OTA public directory ---
echo "Copying APK to OTA server..."
cp "$APK_SOURCE" "$APK_DEST"

# --- Increment version in version.json ---
CURRENT_VERSION=$(python3 -c "import json; print(json.load(open('$VERSION_FILE'))['version'])")
NEW_VERSION=$((CURRENT_VERSION + 1))

python3 -c "
import json

data = {
    'version': $NEW_VERSION,
    'downloadUrl': 'http://192.168.86.172:9091/mirror-os-remote.apk',
    'changelog': '''$CHANGELOG'''
}

with open('$VERSION_FILE', 'w') as f:
    json.dump(data, f, indent=2)
    f.write('\n')
"

echo ""
echo "Published version $NEW_VERSION"
echo "  Changelog: $CHANGELOG"
echo "  APK size: $(du -h "$APK_DEST" | cut -f1)"
echo ""
echo "--- Deploy instructions ---"
echo ""
echo "If running locally:"
echo "  cd deploy/ota-server && docker compose up -d"
echo ""
echo "If deploying to homelab (192.168.86.172):"
echo "  rsync -avz deploy/ota-server/ homelab:~/ota-server/"
echo "  ssh homelab 'cd ~/ota-server && docker compose up -d'"