#!/bin/bash
# Android Chat Client Build Script

set -e

echo "================================"
echo "SCAR Chat Android Client Builder"
echo "================================"
echo ""

# Check if we're in the right directory
if [ ! -f "settings.gradle" ]; then
    echo "Error: settings.gradle not found!"
    echo "Please run this script from the android_client directory:"
    echo "  cd android_client"
    echo "  ./build.sh"
    exit 1
fi

# Check for Java
if ! command -v java &> /dev/null; then
    echo "Error: Java not found in PATH"
    echo "Please install Java JDK 11 or later"
    echo "Linux: sudo apt-get install openjdk-11-jdk"
    echo "macOS: brew install java@11"
    echo "Windows: https://adoptopenjdk.net/"
    exit 1
fi

JAVA_VERSION=$(java -version 2>&1 | head -1)
echo "✓ Java found: $JAVA_VERSION"
echo ""

# Check for Android SDK
if [ -z "$ANDROID_HOME" ]; then
    echo "Warning: ANDROID_HOME not set"
    echo "Attempting to find Android SDK..."
    
    if [ -d "$HOME/Android/Sdk" ]; then
        export ANDROID_HOME="$HOME/Android/Sdk"
        echo "✓ Found Android SDK at: $ANDROID_HOME"
    else
        echo "Error: Android SDK not found!"
        echo "Please install Android Studio or Android SDK"
        echo "Set ANDROID_HOME environment variable to SDK location"
        exit 1
    fi
fi

echo ""
echo "Building Android Chat Client..."
echo ""

# Make gradlew executable
chmod +x ./gradlew

# Run build
./gradlew build

BUILD_RESULT=$?

if [ $BUILD_RESULT -eq 0 ]; then
    echo ""
    echo "✓ Build successful!"
    echo ""
    echo "Output APKs:"
    echo "  Debug:   app/build/outputs/apk/debug/app-debug.apk"
    echo "  Release: app/build/outputs/apk/release/app-release.apk"
    echo ""
    echo "To install on device:"
    echo "  ./gradlew installDebug"
    echo ""
else
    echo ""
    echo "✗ Build failed!"
    exit 1
fi