#!/bin/bash
set -euo pipefail
cd "$(dirname "$0")"
export ANDROID_HOME="${ANDROID_HOME:-/home/user/android}"
BUILD_TYPE=Debug
NOINSTALL=0
DEVICE=""
for arg in "$@"; do
    case "$arg" in
        --release) BUILD_TYPE=Release ;;
        noinstall|--no-install) NOINSTALL=1 ;;
        --help|-h)
            echo "Usage: $0 [--release] [noinstall | DEVICE_SERIAL]"
            echo "Default: clean debug build and install on all connected devices."
            echo "Release: create the key once with ./create_signing_key.sh; then use --release noinstall."
            exit 0
            ;;
        -*) echo "ERROR: Unknown option: $arg. Use --help." >&2; exit 1 ;;
        *)
            if [[ -n "$DEVICE" ]]; then
                echo "ERROR: Only one device serial may be specified." >&2
                exit 1
            fi
            DEVICE="$arg"
            ;;
    esac
done
if [[ "$NOINSTALL" == 1 && -n "$DEVICE" ]]; then
    echo "ERROR: Specify either noinstall or a device serial." >&2
    exit 1
fi
if [[ "$BUILD_TYPE" == Release && ! -f signing/keystore.properties ]]; then
    echo "ERROR: Release signing settings missing. Run ./create_signing_key.sh first." >&2
    exit 1
fi
VARIANT="${BUILD_TYPE,,}"
APK="app/build/outputs/apk/$VARIANT/app-$VARIANT.apk"
trap 'echo "ERROR: Android build/install failed at line $LINENO." >&2' ERR

echo "Building $BUILD_TYPE APK..."
TMP=$(mktemp)
trap 'rm -f "$TMP"' EXIT
if ! ./gradlew clean ":app:assemble$BUILD_TYPE" > "$TMP" 2>&1; then
    cat "$TMP"
    echo "ERROR: Gradle $BUILD_TYPE build failed." >&2
    exit 1
fi
if [[ ! -f "$APK" ]]; then
    echo "ERROR: Gradle succeeded but APK not found: $APK" >&2
    exit 1
fi
echo "Build OK: $PWD/$APK"

[[ "$NOINSTALL" == 1 ]] && exit 0

if [[ -n "$DEVICE" ]]; then
    DEVICES=("$DEVICE")
else
    mapfile -t DEVICES < <(adb devices | awk 'NR>1 && $2=="device"{print $1}')
fi

if [ ${#DEVICES[@]} -eq 0 ]; then
    echo "No devices connected" >&2
    exit 1
fi

echo "Devices (${#DEVICES[@]}):"
i=1
for d in "${DEVICES[@]}"; do
    name=$(adb -s "$d" shell getprop ro.product.model 2>/dev/null | tr -d '\r')
    [ -z "$name" ] && name=$(adb -s "$d" shell getprop ro.product.marketname 2>/dev/null | tr -d '\r')
    echo "  $i) $d  $name"
    i=$((i+1))
done

for d in "${DEVICES[@]}"; do
    echo "Installing on $d..."
    adb -s "$d" install -r "$APK"
done
echo "Install OK"