Updated on 2026-08-14

domain/offramp/build.gradle.kts

@@ -3,10 +3,23 @@ plugins {
     id("configuration")
 }
 dependencies {
-    /** Domain modules */
-    api(projects.domain.core)
-    api(projects.domain.models)
 
-    /** Test libraries */
-    testImplementation(projects.test.core)
+    // region Other libraries
+    api(deps.arrow.core)
+    // endregion
+
+    // region Core modules
+    implementation(projects.core.utils)
+    // endregion
+
+    // region Domain models
+    api(projects.domain.models)
+    // endregion
+
+    // region Tests
+    testImplementation(deps.test.coroutine)
+    testImplementation(deps.test.junit5)
+    testImplementation(deps.test.mockk)
+    testImplementation(deps.test.truth)
+    // endregion
 }

domain/offramp/src/main/java/com/tangem/domain/offramp/model/PendingOfframp.kt

@@ -1,6 +1,7 @@
 package com.tangem.domain.offramp.model
 
 import com.tangem.domain.models.wallet.UserWalletId
+import java.util.concurrent.TimeUnit
 
 /**
  * A locally-recorded marker that the app itself initiated a sell (off-ramp) flow.
@@ -19,4 +20,13 @@ data class PendingOfframp(
     val userWalletId: UserWalletId,
     val currencyId: String,
     val createdAt: Long,
-)
+) {
+
+    /** Whether the record is past its expiry at [nowMillis] and can no longer authenticate a redirect. */
+    fun isExpired(nowMillis: Long): Boolean = nowMillis - createdAt >= EXPIRY_MS
+
+    companion object {
+        /** How long a pending sell stays valid after registration. */
+        val EXPIRY_MS: Long = TimeUnit.HOURS.toMillis(1)
+    }
+}

domain/offramp/src/main/java/com/tangem/domain/offramp/repository/OfframpRepository.kt

@@ -45,4 +45,13 @@ interface OfframpRepository {
         userWalletId: UserWalletId,
         currencyId: String,
     ): PendingOfframp?
+
+    /**
+     * Returns every stored app-initiated sell — **including expired ones** that have not been pruned yet (read-only;
+     * does not mutate the store). Use [PendingOfframp.isExpired] to tell them apart.
+     *
+     * Intended for QA/tester tooling that needs to reproduce a returning `redirect_sell` deeplink from a real,
+     * app-registered sell and to inspect stale records.
+     */
+    suspend fun getAllStoredOfframps(): List<PendingOfframp>
 }

domain/offramp/src/test/kotlin/com/tangem/domain/offramp/model/PendingOfframpTest.kt

@@ -0,0 +1,45 @@
+package com.tangem.domain.offramp.model
+
+import com.google.common.truth.Truth.assertThat
+import com.tangem.domain.models.wallet.UserWalletId
+import org.junit.jupiter.api.Test
+
+internal class PendingOfframpTest {
+
+    @Test
+    fun `GIVEN record younger than expiry WHEN isExpired THEN returns false`() {
+        // Arrange
+        val now = 10_000_000L
+        val offramp = createOfframp(createdAt = now - PendingOfframp.EXPIRY_MS + 1)
+
+        // Act & Assert
+        assertThat(offramp.isExpired(now)).isFalse()
+    }
+
+    @Test
+    fun `GIVEN record exactly at expiry WHEN isExpired THEN returns true`() {
+        // Arrange
+        val now = 10_000_000L
+        val offramp = createOfframp(createdAt = now - PendingOfframp.EXPIRY_MS)
+
+        // Act & Assert
+        assertThat(offramp.isExpired(now)).isTrue()
+    }
+
+    @Test
+    fun `GIVEN record older than expiry WHEN isExpired THEN returns true`() {
+        // Arrange
+        val now = 10_000_000L
+        val offramp = createOfframp(createdAt = now - PendingOfframp.EXPIRY_MS - 1)
+
+        // Act & Assert
+        assertThat(offramp.isExpired(now)).isTrue()
+    }
+
+    private fun createOfframp(createdAt: Long) = PendingOfframp(
+        requestId = "request-id",
+        userWalletId = UserWalletId("0011223344556677"),
+        currencyId = "bitcoin",
+        createdAt = createdAt,
+    )
+}