LottieSample/src/main/kotlin/com/airbnb/lottie/samples/PreviewFragment.kt

package com.airbnb.lottie.samples

import android.Manifest
import android.app.Activity
import android.app.AlertDialog
import android.content.ActivityNotFoundException
import android.content.Intent
import android.content.pm.PackageManager
import android.support.design.widget.Snackbar
import android.widget.ArrayAdapter
import android.widget.EditText
import android.widget.Toast
import com.airbnb.epoxy.EpoxyController
import com.airbnb.lottie.samples.model.CompositionArgs
import com.airbnb.lottie.samples.views.marquee
import kotlinx.android.synthetic.main.fragment_player.*

private const val RC_FILE = 1000
private const val RC_CAMERA_PERMISSION = 1001
class PreviewFragment : BaseEpoxyFragment() {

    override fun EpoxyController.buildModels() {
        marquee {
            id("marquee")
            title(R.string.preview_title)
        }

        previewItemView {
            id("qr")
            title(R.string.preview_qr)
            icon(R.drawable.ic_qr_scan)
            clickListener { _ ->
                if (requireContext().hasPermission(Manifest.permission.CAMERA)) {
                    startActivity(QRScanActivity.intent(requireContext()))
                } else {
                    requestPermissions(arrayOf(Manifest.permission.CAMERA), RC_CAMERA_PERMISSION)
                }
            }
        }

        previewItemView {
            id("file")
            title(R.string.preview_file)
            icon(R.drawable.ic_file)
            clickListener { _ ->
                try {
                    val intent = Intent(Intent.ACTION_GET_CONTENT).apply {
                        type = "*/*"
                        addCategory(Intent.CATEGORY_OPENABLE)
                    }
                    startActivityForResult(Intent.createChooser(intent, "Select a JSON file"), RC_FILE)
                } catch (ex: ActivityNotFoundException) {
                    // Potentially direct the user to the Market with a Dialog
                    Toast.makeText(context, "Please install a File Manager.", Toast.LENGTH_SHORT).show()
                }
            }
        }

        previewItemView {
            id("url")
            title(R.string.preview_url)
            icon(R.drawable.ic_network)
            clickListener { _ ->
                val urlOrJsonView = EditText(context)
                AlertDialog.Builder(context)
                        .setTitle(R.string.preview_url)
                        .setView(urlOrJsonView)
                        .setPositiveButton(R.string.preview_load) { _, _ ->
                            val args = CompositionArgs(url = urlOrJsonView.text.toString())
                            startActivity(PlayerActivity.intent(requireContext(), args))
                        }
                        .setNegativeButton(R.string.preview_cancel) { dialog, _ -> dialog.dismiss() }
                        .show()
            }
        }

        previewItemView {
            id("assets")
            title(R.string.preview_assets)
            icon(R.drawable.ic_storage)
            clickListener { _ ->
                val adapter = ArrayAdapter<String>(requireContext(), android.R.layout.select_dialog_item)
                requireContext().assets.list("").asSequence()
                        .filter { it.endsWith(".json") || it.endsWith(".zip") }
                        .forEach { adapter.add(it) }
                AlertDialog.Builder(context)
                        .setAdapter(adapter) { _, which ->
                            val args = CompositionArgs(asset = adapter.getItem(which))
                            startActivity(PlayerActivity.intent(requireContext(), args))
                        }
                        .show()
            }
        }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        if (resultCode != Activity.RESULT_OK) return
        when (requestCode) {
            RC_FILE-> startActivity(PlayerActivity.intent(requireContext(), CompositionArgs(fileUri = data?.data)))
        }
    }

    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
        when (requestCode) {
            RC_CAMERA_PERMISSION -> {
                if (grantResults.firstOrNull() == PackageManager.PERMISSION_GRANTED) {
                    startActivity(QRScanActivity.intent(requireContext()))
                } else {
                    Snackbar.make(coordinatorLayout, R.string.qr_permission_denied, Snackbar.LENGTH_LONG).show()
                }
            }
        }
    }
}