fix: add quickpay daily spend limit

app/src/androidTest/java/to/bitkit/ui/settings/quickPay/QuickPaySettingsScreenTest.kt

@@ -34,12 +34,14 @@ class QuickPaySettingsScreenTest {
                 QuickPaySettingsScreenContent(
                     isQuickPayEnabled = true,
                     quickPayAmount = 5,
+                    quickPayDailyLimitMultiplier = 5,
                 )
             }
         }
 
         composeTestRule.onNodeWithTag("QuickpayToggle").assertIsDisplayed()
-        composeTestRule.onNodeWithTag("quickpay_amount_slider").assertIsDisplayed()
+        composeTestRule.onNodeWithTag("QuickpayAmountSlider").assertIsDisplayed()
+        composeTestRule.onNodeWithTag("QuickpayDailyLimitSlider").assertIsDisplayed()
     }
 
     @Test
@@ -52,6 +54,7 @@ class QuickPaySettingsScreenTest {
                 QuickPaySettingsScreenContent(
                     isQuickPayEnabled = false,
                     quickPayAmount = 5,
+                    quickPayDailyLimitMultiplier = 5,
                     onToggleQuickPay = { enabled ->
                         toggleCalled = true
                         toggleValue = enabled

app/src/main/java/to/bitkit/data/CacheStore.kt

@@ -139,6 +139,43 @@ class CacheStore @Inject constructor(
         store.updateData { it.copy(backgroundReceive = null) }
     }
 
+    suspend fun quickPaySpentUsdForDay(dayKey: String): Double {
+        val data = store.data.first()
+        return if (data.quickPaySpendDayKey == dayKey) data.quickPaySpentUsdToday else 0.0
+    }
+
+    suspend fun tryReserveQuickPaySpendUsd(amountUsd: Double, dayKey: String, dailyCapUsd: Double): Boolean {
+        var reserved = false
+        store.updateData {
+            val spent = if (it.quickPaySpendDayKey == dayKey) it.quickPaySpentUsdToday else 0.0
+            if (spent + amountUsd > dailyCapUsd) return@updateData it
+            reserved = true
+            if (it.quickPaySpendDayKey != dayKey) {
+                it.copy(quickPaySpendDayKey = dayKey, quickPaySpentUsdToday = amountUsd)
+            } else {
+                it.copy(quickPaySpentUsdToday = spent + amountUsd)
+            }
+        }
+        return reserved
+    }
+
+    suspend fun releaseQuickPaySpendUsd(amountUsd: Double, dayKey: String) {
+        store.updateData {
+            if (it.quickPaySpendDayKey != dayKey) return@updateData it
+            it.copy(quickPaySpentUsdToday = (it.quickPaySpentUsdToday - amountUsd).coerceAtLeast(0.0))
+        }
+    }
+
+    suspend fun recordQuickPaySpendUsd(amountUsd: Double, dayKey: String) {
+        store.updateData {
+            if (it.quickPaySpendDayKey != dayKey) {
+                it.copy(quickPaySpendDayKey = dayKey, quickPaySpentUsdToday = amountUsd)
+            } else {
+                it.copy(quickPaySpentUsdToday = it.quickPaySpentUsdToday + amountUsd)
+            }
+        }
+    }
+
     suspend fun reset() {
         store.updateData { AppCacheData() }
         Logger.info("Deleted all app cached data.")
@@ -164,6 +201,8 @@ data class AppCacheData(
     val backgroundReceive: NewTransactionSheetDetails? = null,
     val addressSearchLastUsedReceiveIndexes: Map<String, Int> = mapOf(),
     val addressSearchLastUsedChangeIndexes: Map<String, Int> = mapOf(),
+    val quickPaySpendDayKey: String = "",
+    val quickPaySpentUsdToday: Double = 0.0,
 ) {
     fun isActivityDeleted(activityId: String, walletId: String): Boolean =
         scopedActivityId(walletId, activityId) in deletedActivities ||

app/src/main/java/to/bitkit/data/SettingsStore.kt

@@ -128,6 +128,7 @@ data class SettingsData(
     val bgPaymentsIntroSeen: Boolean = false,
     val isQuickPayEnabled: Boolean = false,
     val quickPayAmount: Int = 5,
+    val quickPayDailyLimitMultiplier: Int = 5,
     val lightningSetupStep: Int = 0,
     val isPinEnabled: Boolean = false,
     val isBiometricEnabled: Boolean = false,

app/src/main/java/to/bitkit/ext/DateTime.kt

@@ -39,6 +39,12 @@ fun nowMillis(clock: Clock = Clock.System): Long = clock.now().toEpochMillisecon
 @OptIn(ExperimentalTime::class)
 fun Clock.nowMs(): Long = now().toEpochMilliseconds()
 
+@OptIn(ExperimentalTime::class)
+fun quickPaySpendDayKey(
+    clock: Clock = Clock.System,
+    timeZone: TimeZone = TimeZone.currentSystemDefault(),
+): String = clock.now().toLocalDateTime(timeZone).date.toString()
+
 fun nowTimestamp(): Instant = Instant.now().truncatedTo(ChronoUnit.SECONDS)
 
 fun dateTimeFormatterOf(