From 5b75669ab431c92b0f4367385c9cf650481a47cd Mon Sep 17 00:00:00 2001
From: mueller-ma <mueller-ma@users.noreply.github.com>
Date: Sun, 5 Nov 2023 12:39:11 +0100
Subject: [PATCH] Long-press to delete an entry (#253)

---
 .../prepaidbalance/ui/BalanceListAdapter.kt   | 23 ++++++++++++++++---
 .../prepaidbalance/ui/MainActivity.kt         |  2 +-
 app/src/main/res/values/strings.xml           |  2 ++
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/github/muellerma/prepaidbalance/ui/BalanceListAdapter.kt b/app/src/main/java/com/github/muellerma/prepaidbalance/ui/BalanceListAdapter.kt
index c75f3326..11451d09 100644
--- a/app/src/main/java/com/github/muellerma/prepaidbalance/ui/BalanceListAdapter.kt
+++ b/app/src/main/java/com/github/muellerma/prepaidbalance/ui/BalanceListAdapter.kt
@@ -1,6 +1,5 @@
 package com.github.muellerma.prepaidbalance.ui
 
-import android.content.Context
 import android.view.LayoutInflater
 import android.view.ViewGroup
 import androidx.annotation.ColorRes
@@ -8,21 +7,25 @@ import androidx.core.content.ContextCompat
 import androidx.recyclerview.widget.RecyclerView
 import com.github.muellerma.prepaidbalance.R
 import com.github.muellerma.prepaidbalance.databinding.ListBalanceBinding
+import com.github.muellerma.prepaidbalance.room.AppDatabase
 import com.github.muellerma.prepaidbalance.room.BalanceEntry
 import com.github.muellerma.prepaidbalance.utils.formatAsCurrency
 import com.github.muellerma.prepaidbalance.utils.formatAsDiff
 import com.github.muellerma.prepaidbalance.utils.showToast
 import com.github.muellerma.prepaidbalance.utils.timestampForUi
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 
-class BalanceListAdapter(context: Context) :
+class BalanceListAdapter(val activity: MainActivity) :
     RecyclerView.Adapter<BalanceListViewHolder>() {
     var balances = emptyList<BalanceEntry>()
         set(value) {
             field = value
             notifyDataSetChanged()
         }
-    private val inflater = LayoutInflater.from(context)
+    private val inflater = LayoutInflater.from(activity)
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BalanceListViewHolder {
         return BalanceListViewHolder(ListBalanceBinding.inflate(inflater, parent, false))
@@ -55,6 +58,20 @@ class BalanceListAdapter(context: Context) :
                     .show()
             }
         }
+        holder.binding.card.setOnLongClickListener {
+            val balance = balances[position]
+            MaterialAlertDialogBuilder(it.context)
+                .setPositiveButton(R.string.delete) { _, _ ->
+                    CoroutineScope(Dispatchers.IO).launch {
+                        AppDatabase.get(it.context).balanceDao().delete(balance)
+                        this@BalanceListAdapter.activity.updateBalanceList()
+                    }
+                }
+                .setNegativeButton(android.R.string.cancel, null)
+                .setMessage(it.context.getString(R.string.delete_entry, balance.balance.formatAsCurrency()))
+                .show()
+            true
+        }
 
         holder.binding.date.apply {
             text = balances[position].timestamp.timestampForUi(context)
diff --git a/app/src/main/java/com/github/muellerma/prepaidbalance/ui/MainActivity.kt b/app/src/main/java/com/github/muellerma/prepaidbalance/ui/MainActivity.kt
index 95de751f..8eb91513 100644
--- a/app/src/main/java/com/github/muellerma/prepaidbalance/ui/MainActivity.kt
+++ b/app/src/main/java/com/github/muellerma/prepaidbalance/ui/MainActivity.kt
@@ -103,7 +103,7 @@ class MainActivity : AbstractBaseActivity(), SwipeRefreshLayout.OnRefreshListene
         super.onResume()
     }
 
-    private fun updateBalanceList() {
+    fun updateBalanceList() {
         Log.d(TAG, "updateBalanceList()")
         launch {
             val lastOneYear = System.currentTimeMillis() - 12L * 30 * 24 * 60 * 60 * 1000
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 908706c0..9977093a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -46,6 +46,8 @@
     <string name="retry">Retry</string>
     <string name="confirm_first_request">A USSD request will be made to %s</string>
     <string name="close">Close</string>
+    <string name="delete">Delete</string>
+    <string name="delete_entry">Do you want do delete the entry \"%s\"?</string>
     <string name="no_response_saved">No response saved</string>
     <string name="last_update">Last update: %s</string>
     <string name="widget_description">Show latest balance</string>