Prefill setting

app/src/main/java/net/helcel/cowspent/android/bill_edit/EditBillActivity.kt

@@ -12,6 +12,7 @@ import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.compose.runtime.remember
 import androidx.lifecycle.lifecycleScope
+import androidx.preference.PreferenceManager
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
@@ -151,12 +152,25 @@ class EditBillActivity : AppCompatActivity() {
                 val billIdToDuplicate = intent.getLongExtra(PARAM_BILL_ID_TO_DUPLICATE, 0)
                 val timeNowSeconds = System.currentTimeMillis() / 1000
                 if (billIdToDuplicate == 0L) {
+                    val preferences = PreferenceManager.getDefaultSharedPreferences(applicationContext)
+                    val fillFromLast = preferences.getBoolean(getString(R.string.pref_key_fill_new_bill_from_last), false)
+                    val lastBill = if (fillFromLast) db.getLastBillOfProject(projectId) else null
+
+                    if (lastBill != null) {
+                        bill = DBBill(
+                            0, 0, projectId, lastBill.payerId, 0.0, timeNowSeconds,
+                            "", DBBill.STATE_ADDED, lastBill.repeat ?: DBBill.NON_REPEATED,
+                            lastBill.paymentMode, lastBill.categoryId, "", lastBill.paymentModeId
+                        )
+                        bill.billOwers = lastBill.billOwers.map { DBBillOwer(0, 0, it.memberId) }
+                    } else {
                         val project = db.getProject(projectId)
                         bill = DBBill(
                             0, 0, projectId, project?.lastPayerId ?: 0, 0.0, timeNowSeconds,
                             "", DBBill.STATE_ADDED, DBBill.NON_REPEATED,
                             DBBill.PAYMODE_NONE, DBBill.CATEGORY_NONE, "", DBBill.PAYMODE_ID_NONE
                         )
+                    }
                 } else {
                     val btd = db.getBill(billIdToDuplicate)!!
                     bill = DBBill(

app/src/main/java/net/helcel/cowspent/android/settings/SettingsScreen.kt

@@ -81,6 +81,7 @@ fun SettingsScreen(
     val keyOfflineMode = stringResource(R.string.pref_key_offline_mode)
     val keyShowArchived = stringResource(R.string.pref_key_show_archived)
     val keyBetaFeatures = stringResource(R.string.pref_key_beta_features)
+    val keyFillNewBillFromLast = stringResource(R.string.pref_key_fill_new_bill_from_last)
 
     val isNextcloudConfigured = CowspentServerSyncHelper.isNextcloudAccountConfigured(context)
 
@@ -123,6 +124,9 @@ fun SettingsScreen(
     var betaFeatures by remember(keyBetaFeatures) {
         mutableStateOf(sharedPreferences.getBoolean(keyBetaFeatures, false))
     }
+    var fillNewBillFromLast by remember(keyFillNewBillFromLast) {
+        mutableStateOf(sharedPreferences.getBoolean(keyFillNewBillFromLast, false))
+    }
 
     Scaffold(
         topBar = {
@@ -269,6 +273,21 @@ fun SettingsScreen(
                 }
             )
 
+            if (betaFeatures) {
+                SettingsSwitchPreference(
+                    title = stringResource(R.string.settings_fill_new_bill_from_last),
+                    summary = stringResource(R.string.settings_fill_new_bill_from_last_summary),
+                    icon = Icons.Default.Info,
+                    checked = fillNewBillFromLast,
+                    onCheckedChange = {
+                        fillNewBillFromLast = it
+                        sharedPreferences.edit {
+                            putBoolean(keyFillNewBillFromLast, it)
+                        }
+                    }
+                )
+            }
+
             SettingsPreference(
                 title = stringResource(R.string.title_about),
                 icon = Icons.Default.Info,

app/src/main/java/net/helcel/cowspent/persistence/CowspentSQLiteOpenHelper.kt

@@ -557,6 +557,15 @@ class CowspentSQLiteOpenHelper private constructor(val context: Context) :
         return if (bills.isEmpty()) null else bills[0]
     }
 
+    fun getLastBillOfProject(projectId: Long): DBBill? {
+        val list = getBillsCustom(
+            "$key_projectid = ? AND $key_state != ?",
+            arrayOf(projectId.toString(), DBBill.STATE_DELETED.toString()),
+            "$key_id DESC LIMIT 1"
+        )
+        return if (list.isEmpty()) null else list[0]
+    }
+
     @WorkerThread
     fun searchBills(query: CharSequence?, projectId: Long): List<DBBill> {
         val andWhere: MutableList<String> = ArrayList()

app/src/main/res/values/strings.xml

@@ -137,6 +137,8 @@
     <string name="settings_show_archived">Show archived projects</string>
     <string name="settings_beta_features">Beta Features</string>
     <string name="settings_beta_features_summary">Enable experimental features. Use at your own risk.</string>
+    <string name="settings_fill_new_bill_from_last">Auto-fill from last bill</string>
+    <string name="settings_fill_new_bill_from_last_summary">Pre-fill payer, category, mode and owers from the last bill created in the project.</string>
     <string name="settings_url_warn_http">WARNING: "http" is unsafe. Use "https".</string>
     <string name="settings_colorpicker_title">Choose Color</string>
 
@@ -158,6 +160,7 @@
     <string name="pref_key_offline_mode" translatable="false">offlineMode</string>
     <string name="pref_key_show_archived" translatable="false">showArchived</string>
     <string name="pref_key_beta_features" translatable="false">betaFeatures</string>
+    <string name="pref_key_fill_new_bill_from_last" translatable="false">fillNewBillFromLast</string>
     <string name="pref_value_night_mode_no" translatable="false">1</string>
     <string name="pref_value_night_mode_yes" translatable="false">2</string>
     <string name="pref_value_night_mode_system" translatable="false">-1</string>