feat: add share button to the DTC dialog

Author: tzebrowski

app/src/main/java/org/obd/graphs/preferences/CoreDialogFragment.kt

@@ -36,7 +36,7 @@ abstract class CoreDialogFragment : DialogFragment() {
         root: View,
         func: () -> Unit = {},
     ) {
-        root.findViewById<Button>(R.id.trip_action_close_window).apply {
+        root.findViewById<Button>(R.id.action_close_window).apply {
             setOnClickListener {
                 func()
                 dialog?.dismiss()

app/src/main/java/org/obd/graphs/preferences/dtc/DiagnosticTroubleCodePreferenceDialogFragment.kt

@@ -16,10 +16,12 @@
  */
 package org.obd.graphs.preferences.dtc
 
+import android.content.Intent
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.Button
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import org.obd.graphs.R
@@ -44,10 +46,68 @@ internal class DiagnosticTroubleCodePreferenceDialogFragment : CoreDialogFragmen
         recyclerView.layoutManager = GridLayoutManager(context, 1)
         recyclerView.adapter = adapter
 
+        attachShareButton(root, sortedDtcList)
         attachCloseButton(root)
+
         return root
     }
 
+    private fun attachShareButton(
+        root: View,
+        sortedDtcList: List<DiagnosticTroubleCode>,
+    ) {
+        val shareButton: Button = root.findViewById(R.id.action_share)
+        if (sortedDtcList.size == 1 && sortedDtcList.first().standardCode.isEmpty()) {
+            shareButton.visibility = View.GONE
+        } else {
+            shareButton.visibility = View.VISIBLE
+            shareButton.setOnClickListener {
+                shareDtcReport(sortedDtcList)
+            }
+        }
+    }
+
+    private fun shareDtcReport(dtcList: List<DiagnosticTroubleCode>) {
+        val reportBuilder = StringBuilder()
+        reportBuilder.append("Vehicle Diagnostic Report\n")
+        reportBuilder.append("-------------------------\n\n")
+
+        for (code in dtcList) {
+            if (code.standardCode.isEmpty()) continue
+
+            val formattedCode =
+                if (!code.failureType?.code.isNullOrEmpty()) {
+                    "${code.standardCode}-${code.failureType.code}"
+                } else {
+                    code.standardCode
+                }
+
+            reportBuilder.append("DTC: $formattedCode\n")
+            reportBuilder.append("Description: ${code.description ?: "Unknown"}\n")
+
+            val systemTxt = code.system?.description
+            val categoryTxt = code.category?.description
+            if (!systemTxt.isNullOrBlank() || !categoryTxt.isNullOrBlank()) {
+                reportBuilder.append("System: ${systemTxt ?: "N/A"} | Category: ${categoryTxt ?: "N/A"}\n")
+            }
+
+            val hex = code.rawHex ?: "N/A"
+            val activeStatuses = code.activeStatuses?.joinToString(", ") ?: "None"
+            reportBuilder.append("Status: $activeStatuses (Hex: $hex)\n")
+            reportBuilder.append("\n") // Blank line between codes
+        }
+
+        val sendIntent: Intent =
+            Intent().apply {
+                action = Intent.ACTION_SEND
+                putExtra(Intent.EXTRA_TEXT, reportBuilder.toString())
+                type = "text/plain"
+            }
+
+        val shareIntent = Intent.createChooser(sendIntent, "Share Diagnostic Report")
+        startActivity(shareIntent)
+    }
+
     private fun diagnosticTroubleCodes(): List<DiagnosticTroubleCode> {
         val diagnosticTroubleCodes = VehicleCapabilitiesManager.getDiagnosticTroubleCodes()
 

app/src/main/java/org/obd/graphs/preferences/pid/PidDefinitionPreferenceDialogFragment.kt

@@ -185,7 +185,7 @@ open class PidDefinitionPreferenceDialogFragment(
             }
         }
 
-        root.findViewById<Button>(R.id.trip_action_close_window).apply {
+        root.findViewById<Button>(R.id.action_close_window).apply {
             setOnClickListener {
                 dialog?.dismiss()
                 onDialogCloseListener.invoke()

app/src/main/res/layout/dialog_dtc.xml

@@ -48,13 +48,25 @@
         android:layout_height="wrap_content"
         app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
         app:layout_constrainedHeight="true"
-        app:layout_constraintBottom_toTopOf="@+id/trip_action_close_window"
+        app:layout_constraintBottom_toTopOf="@+id/action_close_window"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/header_divider" />
 
     <Button
-        android:id="@+id/trip_action_close_window"
+        android:id="@+id/action_share"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:backgroundTint="@color/rainbow_indigo"
+        android:text="Share"
+        android:textSize="12sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/recycler_view" />
+
+    <Button
+        android:id="@+id/action_close_window"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_margin="16dp"

app/src/main/res/layout/dialog_pid.xml

@@ -274,7 +274,7 @@
             tools:ignore="SmallSp" />
 
         <Button
-            android:id="@+id/trip_action_close_window"
+            android:id="@+id/action_close_window"
             style="?android:attr/buttonBarButtonStyle"
             android:layout_width="0dp"
             android:layout_height="wrap_content"

app/src/main/res/layout/dialog_trip.xml

@@ -104,7 +104,7 @@
         android:padding="4dp">
 
         <Button
-            android:id="@+id/trip_action_close_window"
+            android:id="@+id/action_close_window"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginEnd="4dp"

app/src/main/res/layout/dialog_vehicle_metadata.xml

@@ -67,7 +67,7 @@
         android:orientation="horizontal">
 
         <Button
-            android:id="@+id/trip_action_close_window"
+            android:id="@+id/action_close_window"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginStart="6dp"