/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.appium.espressoserver.lib.handlers

import android.content.Context
import android.hardware.display.DisplayManager
import android.util.DisplayMetrics
import android.view.Display
import androidx.test.core.app.ApplicationProvider

import io.appium.espressoserver.lib.handlers.exceptions.AppiumException
import io.appium.espressoserver.lib.model.AppiumParams

class GetDisplayDensity : RequestHandler<AppiumParams, Int> {
    @Throws(AppiumException::class)
    override fun handleInternal(params: AppiumParams): Int {
        val context = ApplicationProvider.getApplicationContext<Context>()
        val display = (context.applicationContext.getSystemService(Context.DISPLAY_SERVICE) as? DisplayManager)
            ?.getDisplay(Display.DEFAULT_DISPLAY)
            ?: throw IllegalStateException("Could not retrieve the default display instance")
        val metrics = DisplayMetrics()
        display.getRealMetrics(metrics)
        return metrics.densityDpi
    }
}