Simple-Camera/app/src/main/kotlin/com/simplemobiletools/camera/dialogs/ChangeResolutionDialog.kt

package com.simplemobiletools.camera.dialogs

import android.hardware.Camera
import android.support.v7.app.AlertDialog
import android.view.LayoutInflater
import android.view.View
import com.simplemobiletools.camera.Preview.Companion.config
import com.simplemobiletools.camera.R
import com.simplemobiletools.camera.activities.SimpleActivity
import com.simplemobiletools.commons.dialogs.RadioGroupDialog
import com.simplemobiletools.commons.extensions.setupDialogStuff
import com.simplemobiletools.commons.models.RadioItem
import kotlinx.android.synthetic.main.dialog_change_resolution.view.*

class ChangeResolutionDialog(val activity: SimpleActivity, val isBackCamera: Boolean, val camera: Camera, val callback: () -> Unit) {
    init {
        val view = LayoutInflater.from(activity).inflate(R.layout.dialog_change_resolution, null).apply {
            setupPhotoResolutionPicker(this)
            setupVideoResolutionPicker(this)
        }

        AlertDialog.Builder(activity)
                .setPositiveButton(R.string.ok, null)
                .create().apply {
            activity.setupDialogStuff(view, this, if (isBackCamera) R.string.back_camera else R.string.front_camera)
        }
    }

    private fun setupPhotoResolutionPicker(view: View) {
        val items = getFormattedResolutions(camera.parameters.supportedPictureSizes)
        var selectionIndex = if (isBackCamera) config.backPhotoResIndex else config.frontPhotoResIndex

        view.change_resolution_photo_holder.setOnClickListener {
            RadioGroupDialog(activity, items, selectionIndex) {
                if (isBackCamera) config.backPhotoResIndex else config.frontPhotoResIndex = it as Int
                selectionIndex = it as Int
            }
        }
        view.change_resolution_photo.text = items[selectionIndex].title
    }

    private fun setupVideoResolutionPicker(view: View) {
        val items = getFormattedResolutions(camera.parameters.supportedVideoSizes ?: camera.parameters.supportedPreviewSizes)
        var selectionIndex = if (isBackCamera) config.backVideoResIndex else config.frontVideoResIndex

        view.change_resolution_video_holder.setOnClickListener {
            RadioGroupDialog(activity, items, selectionIndex) {
                if (isBackCamera) config.backVideoResIndex else config.frontVideoResIndex = it as Int
                selectionIndex = it as Int
            }
        }
        view.change_resolution_video.text = items[selectionIndex].title
    }

    private fun getFormattedResolutions(resolutions: List<Camera.Size>): ArrayList<RadioItem> {
        val items = ArrayList<RadioItem>(resolutions.size)
        val sorted = resolutions.sortedByDescending { it.width * it.height }
        sorted.forEachIndexed { index, size ->
            items.add(RadioItem(index, "${size.width} x ${size.height}"))
        }
        return items
    }
}