#!/bin/bash
set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
cd "$SCRIPT_DIR"

echo "=== Building a3270 (Android APK) ==="

# Set up JAVA_HOME (prefer JDK 21 if available)
if [ -d "/Users/rudi/.sdkman/candidates/java/21.0.6-sem" ]; then
    export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/21.0.6-sem"
elif [ -z "$JAVA_HOME" ]; then
    if [ -d "/Users/rudi/.sdkman/candidates/java/current" ]; then
        export JAVA_HOME="/Users/rudi/.sdkman/candidates/java/current"
    fi
fi

# Set up ANDROID_HOME if not already set
if [ -z "$ANDROID_HOME" ]; then
    if [ -d "$HOME/Library/Android/sdk" ]; then
        export ANDROID_HOME="$HOME/Library/Android/sdk"
    fi
fi

if [ -n "$JAVA_HOME" ]; then
    echo "Using JAVA_HOME: $JAVA_HOME"
fi

if [ -n "$ANDROID_HOME" ]; then
    echo "Using ANDROID_HOME: $ANDROID_HOME"
fi

# Check for j3270 / lib3270j
J3270_PATH="${J3270_DIR:-$SCRIPT_DIR/../j3270}"
if [ ! -d "$J3270_PATH/lib3270j" ]; then
    echo "ERROR: lib3270j not found at $J3270_PATH/lib3270j"
    echo "Please ensure the j3270 repository is cloned alongside a3270:"
    echo "  git clone https://git.hugfreevikings.wtf/rudi/j3270.git"
    echo "Or set the J3270_DIR environment variable:"
    echo "  export J3270_DIR=/path/to/j3270"
    exit 1
fi

echo "Building debug APK..."
./gradlew assembleDebug

APK_PATH="$SCRIPT_DIR/build/outputs/apk/debug/a3270-debug.apk"
if [ -f "$APK_PATH" ]; then
    echo "=== Build Complete ==="
    echo "APK created at: $APK_PATH"
    ls -lh "$APK_PATH"
else
    echo "Build completed, but APK not found at $APK_PATH"
fi