done addproductfragment

app/src/main/java/org/foxarmy/barcodescannerforemployees/AddProductFragment.kt

@@ -1,6 +1,8 @@
 package org.foxarmy.barcodescannerforemployees
 
 //import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
+import android.content.ContentValues
+import android.net.Uri
 import android.os.Build
 import android.os.Bundle
 import android.util.Log
@@ -13,8 +15,13 @@ import androidx.annotation.RequiresApi
 import androidx.core.content.FileProvider
 import androidx.fragment.app.Fragment
 import com.google.firebase.components.BuildConfig
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
+import com.google.mlkit.vision.codescanner.GmsBarcodeScanning
 import org.foxarmy.barcodescannerforemployees.databinding.AddProductFragmentBinding
 import java.io.File
+import java.nio.file.Files
+import java.nio.file.StandardCopyOption
 import java.security.MessageDigest
 
 
@@ -28,37 +35,58 @@ fun String.md5(): String {
 class AddProductFragment : Fragment() {
 
     private var _binding: AddProductFragmentBinding? = null
+    private lateinit var pictureFile: File
     private val binding get() = _binding!!
+    private lateinit var picturesPath: File
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View {
+
+        picturesPath = File(requireContext().filesDir, "pictures")
+        picturesPath.mkdirs()
+
         _binding = AddProductFragmentBinding.inflate(inflater, container, false)
         return binding.root
     }
 
+    fun getImageUri(imageFile: File): Uri? {
+        return FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID + "." + requireActivity().localClassName + ".provider", imageFile)
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
     val takePicture = registerForActivityResult(ActivityResultContracts.TakePicture()) { success: Boolean ->
         if (success) {
-            Log.i("QWERTYUIOP", "Done")
+            //Move picture to a proper directory according to its calculated hash
+            val tempfile = File(requireContext().filesDir, "image.png")
+            val imageHash = tempfile.inputStream().readBytes().toString(Charsets.UTF_8).md5()
+            pictureFile = File(picturesPath, "$imageHash.png")
+            Files.move(tempfile.toPath(), pictureFile.toPath(), StandardCopyOption.REPLACE_EXISTING)
+            tempfile.delete()
+            binding.imageView.setImageURI(getImageUri(pictureFile))
+            Log.i("QWERTYUIOP", "Picture saved")
         } else {
-            Log.e("QWERTYUIOP", "Xuinya")
+            Log.e("QWERTYUIOP", "Cannot save a picture")
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.O)
     fun getPicture () {
+        //Saving picture to a temp file for further hash calculation and moving to a proper directory
         val imageFile = File(requireContext().filesDir, "image.png")
-        val imageUri = FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID + "." + requireActivity().localClassName + ".provider", imageFile)
+        val imageUri = getImageUri(imageFile)//FileProvider.getUriForFile(requireActivity(), BuildConfig.APPLICATION_ID + "." + requireActivity().localClassName + ".provider", imageFile)
         takePicture.launch(imageUri)
     }
 
+    @RequiresApi(Build.VERSION_CODES.O)
     val requestPermissionLauncher =
         registerForActivityResult(
             ActivityResultContracts.RequestPermission()
         ) { isGranted: Boolean ->
             if (isGranted) {
                 Toast.makeText(requireContext(), "Granted", Toast.LENGTH_LONG).show()
-//                getFuckingPicture()
+                getPicture()
             } else {
                 Toast.makeText(requireContext(), "I need permission in order to take a picture", Toast.LENGTH_LONG).show()
             }
@@ -68,39 +96,14 @@ class AddProductFragment : Fragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        binding.takePictureButton.setOnClickListener {
-//            requestPermissionLauncher.launch(android.Manifest.permission.CAMERA)
-            try {
-                getPicture()
-
-            } catch (e:Exception) {
-                Log.e("QWERTYUIOP", e.message.toString())
-            }
-
-//            try {
-//                when{
-//                    ContextCompat.checkSelfPermission(requireContext(), android.Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED -> {
-//                        getFuckingPicture()
-//                    } else -> {
-////                    requestPermissionLauncher.launch(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
-////                    ActivityCompat.requestPermissions(requireActivity(), arrayOf(android.Manifest.permission.WRITE_EXTERNAL_STORAGE), 200)
-//
-//                    Log.e("QWERTYUIOP", "хуй соси губой тряси")
-//                    }
-//                }
-//
-//            } catch (e:Exception) {
-//                Log.e("QWERTYUIOP",  e.message.toString())
-//            }
-        }
-/*
         binding.saveButton.setOnClickListener {
             val productName = binding.productName.text.toString()
             val netWeight = binding.netWeight.text
-            if (picture == null) {
+            if (!this::pictureFile.isInitialized || !pictureFile.exists()) {
                 Toast.makeText(context, "Please, make a picture of a product!", Toast.LENGTH_SHORT).show()
                 return@setOnClickListener
             }
+
             if (productName == "") {
                 Toast.makeText(context, "Please, write a name of a product!", Toast.LENGTH_SHORT).show()
                 return@setOnClickListener
@@ -109,26 +112,12 @@ class AddProductFragment : Fragment() {
                 Toast.makeText(context, "Please, write a valid net weight of a product!", Toast.LENGTH_SHORT).show()
             }
 
-            val appFiles = context?.filesDir
-            val picturesDir = File(appFiles, "pictures")
-            picturesDir.mkdirs()
-            val imageFilename = picture.toString().md5() + ".png"
-            val imageFile = File(picturesDir, imageFilename)
-            val stream = FileOutputStream(imageFile)
-            picture!!.compress(Bitmap.CompressFormat.PNG, 100, stream)
-
-            stream.use {
-                val buffer = ByteBuffer.allocate(picture!!.byteCount)
-                picture!!.copyPixelsToBuffer(buffer)
-                it.write(buffer.array())
-            }
-
             val db = DBStorageController(requireContext()).writableDatabase
 
             val values = ContentValues().apply {
                 put(ProductContract.ProductEntry.PRODUCT_NAME, productName)
                 put(ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, netWeight.toString())
-                put(ProductContract.ProductEntry.IMAGE_FILENAME, imageFilename)
+                put(ProductContract.ProductEntry.IMAGE_FILENAME, pictureFile.name)
             }
 
             db.insert(ProductContract.ProductEntry.TABLE_NAME, null, values)
@@ -168,7 +157,7 @@ class AddProductFragment : Fragment() {
                     ).show()
                 }
         }
-        */
+
     }
 
     override fun onDestroyView() {