#!/bin/bash

set -e

# Backs up one directory at a time, looking for one called "flutter". Once it
# finds that directory, an absolute path to it is returned.
function getFlutterPath() {
    local path=""
    local counter=0

    while [[ "${counter}" -lt 10 ]]; do
        [ -d "${path}flutter" ] && echo "$(pwd)/${path}flutter" && return 0
        let counter++
        path="${path}../"
    done
}

readonly LOCAL_SDK_PATH=$(getFlutterPath)

if [ -z "${LOCAL_SDK_PATH}" ]
then
    echo "Failed to find the Flutter SDK!"
    exit 1
fi

echo "Flutter SDK found at ${LOCAL_SDK_PATH}"

echo "Fetching dependencies and building 'flutter_module'."
pushd add_to_app/flutter_module
"${LOCAL_SDK_PATH}/bin/flutter" packages get
"${LOCAL_SDK_PATH}/bin/flutter" build aar
popd

echo "Fetching dependencies for 'flutter_module_using_plugin'."
pushd add_to_app/flutter_module_using_plugin
"${LOCAL_SDK_PATH}/bin/flutter" packages get
popd

declare -ar ANDROID_PROJECT_NAMES=(
    "add_to_app/android_fullscreen" \
    "add_to_app/android_using_plugin" \
    "add_to_app/android_using_prebuilt_module" \
)

for PROJECT_NAME in "${ANDROID_PROJECT_NAMES[@]}"
do
    echo "== Testing '${PROJECT_NAME}' on Flutter's ${FLUTTER_VERSION} channel =="
    pushd "${PROJECT_NAME}"

    ./gradlew --stacktrace assembleDebug
    ./gradlew --stacktrace assembleRelease

    popd
done

# If the credentials don't exist, this script isn't being run from within the
# flutter/samples repo. Rather than throw an error, allow the test to pass
# successfully.
if [ ! -f "svc-keyfile.json" ]
then
    echo "Keyfile for Firebase Test Lab not found. Skipping integration tests."
    exit 0
fi

# At this time, espresso tests only exist for android_fullscreen. These will
# eventually be rolled out to each Android project and included in the loop
# above.
echo "== Espresso testing 'android_fullscreen' on Flutter's ${FLUTTER_VERSION} channel =="
pushd "add_to_app/android_fullscreen"
./gradlew app:assembleAndroidTest
./gradlew app:assembleDebug -Ptarget=../flutter_module/test_driver/example.dart
gcloud auth activate-service-account --key-file=../../svc-keyfile.json
gcloud --quiet config set project test-lab-project-ccbec
gcloud firebase test android run --type instrumentation \
  --app app/build/outputs/apk/debug/app-debug.apk \
  --test app/build/outputs/apk/androidTest/debug/app-debug-androidTest.apk\
  --timeout 5m
popd

echo "== Run e2e test for testing_app =="
pushd "testing_app"
readonly APP_DIR=$(pwd)
"${LOCAL_SDK_PATH}/bin/flutter" packages get
"${LOCAL_SDK_PATH}/bin/flutter" build apk
pushd "android"
./gradlew app:assembleAndroidTest
./gradlew app:assembleRelease -Ptarget=${APP_DIR}/test/perf_test_e2e.dart
popd
gcloud auth activate-service-account --key-file=../svc-keyfile.json
gcloud --quiet config set project test-lab-project-ccbec
gcloud firebase test android run --type instrumentation \
  --app build/app/outputs/apk/release/app-release.apk \
  --test build/app/outputs/apk/androidTest/debug/app-debug-androidTest.apk \
  --timeout 5m
popd

echo "-- Success --"