created dailyReportExport.kt

app/src/main/java/in/sminnovations/smiadmin/ui/utils/dailyReportExport.kt

@@ -0,0 +1,183 @@
+package `in`.sminnovations.smiadmin.ui.utils
+
+import android.Manifest
+import android.app.ProgressDialog
+import android.content.ActivityNotFoundException
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Environment
+import android.widget.Toast
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import androidx.core.content.FileProvider
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.lifecycleScope
+import com.google.firebase.Firebase
+import com.google.firebase.firestore.firestore
+import `in`.sminnovations.smiadmin.data.Constant
+import `in`.sminnovations.smiadmin.data.Employee
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.tasks.await
+import kotlinx.coroutines.withContext
+import java.io.File
+import java.io.IOException
+import java.util.Calendar
+
+class dailyReportExport(private val fragment: Fragment) {
+    private val db = Firebase.firestore
+    private var currentExcelTask: Job? = null
+
+    // Add permission check
+    private fun checkStoragePermission(): Boolean {
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            true // Android 10 and above don't need explicit storage permission for Downloads
+        } else {
+            ContextCompat.checkSelfPermission(
+                fragment.requireContext(),
+                Manifest.permission.WRITE_EXTERNAL_STORAGE
+            ) == PackageManager.PERMISSION_GRANTED
+        }
+    }
+
+    fun exportAttendance(date : Calendar, source: String) {
+        if (!checkStoragePermission()) {
+            ActivityCompat.requestPermissions(
+                fragment.requireActivity(),
+                arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE),
+                STORAGE_PERMISSION_CODE
+            )
+            return
+        }
+
+        // Cancel any existing task
+        currentExcelTask?.cancel()
+
+        val progressDialog = ProgressDialog(fragment.requireContext()).apply {
+            setMessage("Generating attendance report...")
+            setCancelable(false)
+            show()
+        }
+
+        currentExcelTask = fragment.lifecycleScope.launch(Dispatchers.Main) {
+            try {
+                val company = if (source == "SMI"){
+                    Constant.COMPANY_NAME
+                }else{
+                    "IISc-OMI_LAB"
+                }
+                // First get all employees
+                val employeesSnapshot = withContext(Dispatchers.IO) {
+                    db.collection("employees")
+                        .whereEqualTo("EmployeeStatus", true)
+                        .whereEqualTo("from",source)
+                        .get()
+                        .await()
+                }
+
+                val employees = employeesSnapshot.documents.map { doc ->
+                    Employee(
+                        Id = doc.getString("Id") ?: doc.getString("id") ?: "",
+                        Name = doc.getString("Name") ?: doc.getString("name") ?: "",
+                    )
+                }.sortedBy { it.Name }
+
+                withContext(Dispatchers.IO) {
+                    val pdfGenerator = PDFGenerator_daily(fragment.requireContext(), company)
+                    pdfGenerator.generateDailyReport(employees, selectedDate = date,source = source)
+                }.also { pdfFile ->
+                    withContext(Dispatchers.IO) {
+                        try {
+                            // Verify file exists and is readable
+                            if (!pdfFile.exists() || !pdfFile.canRead()) {
+                                throw IOException("Generated PDF file is not accessible")
+                            }
+
+                            val downloadsDir = Environment.getExternalStoragePublicDirectory(
+                                Environment.DIRECTORY_DOWNLOADS)
+                            val pdfFileInDownloads = File(downloadsDir, pdfFile.name)
+
+                            // Copy file to Downloads if needed
+                            if (!pdfFileInDownloads.exists()) {
+                                pdfFile.copyTo(pdfFileInDownloads, overwrite = true)
+                            }
+
+                            // Verify the file was copied successfully
+                            if (!pdfFileInDownloads.exists() || !pdfFileInDownloads.canRead()) {
+                                throw IOException("Failed to copy PDF to Downloads folder")
+                            }
+
+                            val emailIntent = Intent(Intent.ACTION_SEND).apply {
+                                type = "application/pdf"
+                                putExtra(Intent.EXTRA_EMAIL, arrayOf("admin@sminnovations.in"))
+                                putExtra(Intent.EXTRA_SUBJECT, "Attendance Report - ")
+                                putExtra(Intent.EXTRA_TEXT, "Please find attached the attendance report.")
+
+                                try {
+                                    // Convert file URI to content URI for sharing
+                                    val contentUri = FileProvider.getUriForFile(
+                                        fragment.requireContext(),
+                                        "${fragment.requireContext().packageName}.provider",
+                                        pdfFileInDownloads
+                                    )
+                                    putExtra(Intent.EXTRA_STREAM, contentUri)
+                                    addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                                } catch (e: IllegalArgumentException) {
+                                    throw IOException("FileProvider not properly configured: ${e.message}")
+                                }
+                            }
+
+                            // Switch to Main dispatcher for starting the email activity
+                            withContext(Dispatchers.Main) {
+                                progressDialog.dismiss()
+                                try {
+                                    fragment.startActivity(Intent.createChooser(emailIntent, "Send Email"))
+                                    Toast.makeText(
+                                        fragment.context,
+                                        "Report saved in Downloads folder: ${pdfFile.name}",
+                                        Toast.LENGTH_LONG
+                                    ).show()
+                                } catch (e: ActivityNotFoundException) {
+                                    Toast.makeText(
+                                        fragment.context,
+                                        "No email app found",
+                                        Toast.LENGTH_SHORT
+                                    ).show()
+                                }
+                            }
+                        } catch (e: Exception) {
+                            withContext(Dispatchers.Main) {
+                                progressDialog.dismiss()
+                                Toast.makeText(
+                                    fragment.context,
+                                    "Error sending email: ${e.message}",
+                                    Toast.LENGTH_SHORT
+                                ).show()
+                            }
+                        }
+                    }
+                }
+            } catch (e: Exception) {
+                withContext(Dispatchers.Main) {
+                    progressDialog.dismiss()
+                    Toast.makeText(
+                        fragment.context,
+                        "Error: ${e.localizedMessage ?: "Unknown error occurred"}",
+                        Toast.LENGTH_LONG
+                    ).show()
+                }
+                e.printStackTrace()
+            }
+        }
+    }
+
+    fun cleanup() {
+        currentExcelTask?.cancel()
+    }
+
+    companion object {
+        private const val STORAGE_PERMISSION_CODE = 101
+    }
+}