class KEditorDemoActivity : Activity() {

    companion object {
        const val PESDK_RESULT = 1
        const val GALLERY_RESULT = 2
    }

    // Create a empty new SettingsList and apply the changes on this reference.
    // If you include our asset Packs and use our UI you also need to add them to the UI Config,
    // otherwise they are only available for the backend (like Serialisation)
    // See the specific feature sections of our guides if you want to know how to add your own Assets.
    private fun createPESDKSettingsList() =
        PhotoEditorSettingsList(true)
            .configure<UiConfigFilter> {
                it.setFilterList(FilterPackBasic.getFilterPack())
            }
            .configure<UiConfigText> {
                it.setFontList(FontPackBasic.getFontPack())
            }
            .configure<UiConfigFrame> {
                it.setFrameList(FramePackBasic.getFramePack())
            }
            .configure<UiConfigOverlay> {
                it.setOverlayList(OverlayPackBasic.getOverlayPack())
            }
            .configure<UiConfigSticker> {
                it.setStickerLists(
                    StickerPackEmoticons.getStickerCategory(),
                    StickerPackShapes.getStickerCategory()
                )
            }
            .configure<PhotoEditorSaveSettings> {
                it.setOutputToGallery(Environment.DIRECTORY_DCIM)
            }


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        openSystemGalleryToSelectAnImage()
    }

    fun openSystemGalleryToSelectAnImage() {
        val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
        try {
            startActivityForResult(intent, GALLERY_RESULT)
        } catch (ex: ActivityNotFoundException) {
            Toast.makeText(
                this,
                "No Gallery APP installed",
                Toast.LENGTH_LONG
            ).show()
        }
    }

    fun openEditor(inputImage: Uri?) {
        val settingsList = createPESDKSettingsList()

        settingsList.configure<LoadSettings> {
            it.source = inputImage
        }

        PhotoEditorBuilder(this)
            .setSettingsList(settingsList)
            .startActivityForResult(this, PESDK_RESULT)
        
        settingsList.release()
    }


    override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent) {
        super.onActivityResult(requestCode, resultCode, intent)

        if (resultCode == RESULT_OK && requestCode == GALLERY_RESULT) {
            // Open Editor with some uri in this case with an image selected from the system gallery.
            openEditor(intent.data)

        } else if (resultCode == RESULT_OK && requestCode == PESDK_RESULT) {
            // Editor has saved an Image.
            val data = EditorSDKResult(intent)

            Log.i("PESDK", "Source image is located here ${data.sourceUri}")
            Log.i("PESDK", "Result image is located here ${data.resultUri}")

            // TODO: Do something with the result image

            // OPTIONAL: read the latest state to save it as a serialisation
            val lastState = data.settingsList
            try {
                IMGLYFileWriter(lastState).writeJson(File(
                    getExternalFilesDir(null),
                    "serialisationReadyToReadWithPESDKFileReader.json"
                ))
            } catch (e: IOException) {
                e.printStackTrace()
            }
            
            lastState.release()

        } else if (resultCode == RESULT_CANCELED && requestCode == PESDK_RESULT) {
            // Editor was canceled
            val data = EditorSDKResult(intent)

            val sourceURI = data.sourceUri
            // TODO: Do something with the source...
        }
    }
}

class KCameraDemoActivity : Activity(), PermissionRequest.Response {

    companion object {
        const val PESDK_RESULT = 1
    }

    // Important permission request for Android 6.0 and above, don't forget to add this!
    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
        PermissionRequest.onRequestPermissionsResult(requestCode, permissions, grantResults)
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
    }

    override fun permissionGranted() {}

    override fun permissionDenied() {
        /* TODO: The Permission was rejected by the user. The Editor was not opened,
         * Show a hint to the user and try again. */
    }

    // Create a empty new SettingsList and apply the changes on this reference.
    // If you have included our asset Packs and you want to use our default UI you also need to add them to the UI config,
    // otherwise they are only available for the backend link serialisation.
    // See the specific feature sections of our guides if you want to know how to add your own assets.
    private fun createPESDKSettingsList() = PhotoEditorSettingsList(true)
        .configure<UiConfigFilter> {
            it.setFilterList(FilterPackBasic.getFilterPack())
        }
        .configure<UiConfigText> {
            it.setFontList(FontPackBasic.getFontPack())
        }
        .configure<UiConfigFrame> {
            it.setFrameList(FramePackBasic.getFramePack())
        }
        .configure<UiConfigOverlay> {
            it.setOverlayList(OverlayPackBasic.getOverlayPack())
        }
        .configure<UiConfigSticker> {
            it.setStickerLists(
                StickerPackEmoticons.getStickerCategory(),
                StickerPackShapes.getStickerCategory()
            )
        }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        openCamera()
    }

    private fun openCamera() {
        val settingsList = createPESDKSettingsList()

        CameraPreviewBuilder(this)
            .setSettingsList(settingsList)
            .startActivityForResult(this, PESDK_RESULT)

        settingsList.release()
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, intent: Intent) {
        super.onActivityResult(requestCode, resultCode, intent)

        if (resultCode == RESULT_OK && requestCode == PESDK_RESULT) {
            // Editor has saved an Image.
            val data = EditorSDKResult(intent)

            Log.i("PESDK", "Source image is located here ${data.sourceUri}")
            Log.i("PESDK", "Result image is located here ${data.resultUri}")

            // TODO: Do something with the result image

            // OPTIONAL: read the latest state to save it as a serialisation
            val lastState = data.settingsList
            try {
                IMGLYFileWriter(lastState).writeJson(File(
                    getExternalFilesDir(null),
                    "serialisationReadyToReadWithPESDKFileReader.json"
                ))
            } catch (e: IOException) {
                e.printStackTrace()
            }

            lastState.release()

        } else if (resultCode == RESULT_CANCELED && requestCode == PESDK_RESULT) {
            // Editor was canceled
            val data = EditorSDKResult(intent)

            val sourceURI = data.sourceUri
            // TODO: Do something...
        }
    }
}