#!/bin/bash
set -e

echo "=========================================="
echo "  ChunYu Android Emulator Container"
echo "=========================================="

# Configuration
BACKEND_HOST="${BACKEND_HOST:-backend}"
BACKEND_PORT="${BACKEND_PORT:-8000}"
APK_PATH="${APK_PATH:-/app/apks/app-debug.apk}"
LAUNCH_ACTIVITY="${LAUNCH_ACTIVITY:-com.chunyu.app/.MainActivity}"

echo "[1/5] Starting Redroid Android container..."
# Start redroid in background
redroid --host=0.0.0.0 --port=5555 &
REDROID_PID=$!

echo "[2/5] Waiting for Android emulator to be ready..."
# Wait for boot completion
timeout=120
counter=0
while [ $counter -lt $timeout ]; do
    if adb devices | grep -q "emulator.*device"; then
        echo "  ✓ Android emulator is ready!"
        break
    fi
    sleep 2
    counter=$((counter + 2))
    echo "  ...waiting for emulator (${counter}s/${timeout}s)"
done

if [ $counter -ge $timeout ]; then
    echo "  ✗ Timeout waiting for emulator to boot"
    exit 1
fi

# Wait for boot completion
adb wait-for-device
echo "  Waiting for boot to complete..."
adb shell 'while [[ -z $(getprop sys.boot_completed) ]]; do sleep 1; done; echo "Boot completed"'
echo "  ✓ Android boot completed!"

echo "[3/5] Configuring network..."
# Get the IP that the Android emulator can use to reach the backend
# In Docker bridge network, we can use the service name
echo "  Backend host: ${BACKEND_HOST}:${BACKEND_PORT}"

# Push configuration to Android
# Create a config file that the app can read
adb shell "mkdir -p /data/local/tmp/chunyu"
adb shell "echo '${BACKEND_HOST}' > /data/local/tmp/chunyu/backend_host"
adb shell "echo '${BACKEND_PORT}' > /data/local/tmp/chunyu/backend_port"

echo "[4/5] Installing APK..."
if [ -f "$APK_PATH" ]; then
    echo "  Installing: $APK_PATH"
    adb install -r -t "$APK_PATH"
    echo "  ✓ APK installed successfully!"
else
    echo "  ⚠ APK not found at $APK_PATH"
    echo "  Please mount the APK to /app/apks/app-debug.apk"
fi

echo "[5/5] Launching application..."
adb shell am start -n "$LAUNCH_ACTIVITY"
echo "  ✓ Application launched!"

echo ""
echo "=========================================="
echo "  Android Emulator Ready!"
echo "=========================================="
echo "  ADB Port: 5555"
echo "  Backend: ${BACKEND_HOST}:${BACKEND_PORT}"
echo ""
echo "  To connect from host:"
echo "    adb connect localhost:5555"
echo "=========================================="

# Keep container running
wait $REDROID_PID