Updated on 2026-08-14

features/onboarding/src/main/java/com/tangem/feature/onboarding/data/SeedPhraseRepository.kt

@@ -0,0 +1,107 @@
+package com.tangem.feature.onboarding.data
+
+import com.tangem.crypto.bip39.EntropyLength
+import com.tangem.crypto.bip39.Wordlist
+
+/**
+[REDACTED_AUTHOR]
+ */
+interface SeedPhraseRepository {
+    fun getWordList(): Wordlist
+}
+
+class DummySeedPhraseRepository : SeedPhraseRepository {
+    override fun getWordList(): Wordlist = DummyWordlist()
+}
+
+class DummyWordlist(
+    entropyLength: EntropyLength = EntropyLength.Bits128Length,
+    random: Boolean = false,
+) : Wordlist {
+
+    private var _wordlist: List<String> = listOf()
+
+    override val wordlist: List<String>
+        get() = _wordlist
+
+    init {
+        if (random) regenerateRandom() else regenerate(entropyLength)
+    }
+
+    fun regenerateRandom(entropyLength: EntropyLength = EntropyLength.Bits128Length) {
+        val minWordLength = 4
+        val maxWordLength = 10
+        _wordlist = (0 until entropyLength.wordCount())
+            .map {
+                randomString(maxLength = randomInt(minWordLength, maxWordLength))
+            }
+    }
+
+    fun regenerate(entropyLength: EntropyLength = EntropyLength.Bits128Length) {
+        _wordlist = getStaticWordlist().subList(0, entropyLength.wordCount() - 1)
+    }
+
+    private fun randomString(maxLength: Int): String {
+        val charPool: List<Char> = ('a'..'z') + ('A'..'Z') + ('0'..'9')
+        return (0..maxLength)
+            .map { randomInt(0, charPool.size) }
+            .map(charPool::get)
+            .joinToString("")
+    }
+
+    private fun randomInt(from: Int, to: Int): Int = kotlin.random.Random.nextInt(from, to)
+
+    private fun getStaticWordlist(): List<String> {
+        return listOf(
+            "lorem",
+            "ipsum",
+            "dolor",
+            "amet",
+            "consectetur",
+            "adipiscing",
+            "elit",
+            "eiusmod",
+            "tempor",
+            "incididunt",
+            "labore",
+            "dolore",
+            "magna",
+            "aliqua",
+            "enim",
+            "minim",
+            "veniam",
+            "quis",
+            "nostrud",
+            "exercitation",
+            "ullamco",
+            "laboris",
+            "nisi",
+            "aliquip",
+            "commodo",
+            "consequat",
+            "duis",
+            "aute",
+            "irure",
+            "reprehenderit",
+            "voluptate",
+            "velit",
+            "esse",
+            "cillum",
+            "fugiat",
+            "nulla",
+            "pariatur",
+            "excepteur",
+            "sint",
+            "occaecat",
+            "cupidatat",
+            "proident",
+            "sunt",
+            "culpa",
+            "officia",
+            "deserunt",
+            "mollit",
+            "anim",
+            "laborum",
+        )
+    }
+}

features/onboarding/src/main/java/com/tangem/feature/onboarding/domain/SeedPhraseChecker.kt

@@ -0,0 +1,16 @@
+package com.tangem.feature.onboarding.domain
+
+/**
+[REDACTED_AUTHOR]
+ */
+interface SeedPhraseChecker {
+    suspend fun isSeedPhraseMatch(seedPhrase: List<String>): Boolean
+    suspend fun isPhraseMatch(phrase: String, source: List<String>): Boolean
+}
+
+class DummySeedPhraseChecker : SeedPhraseChecker {
+
+    override suspend fun isSeedPhraseMatch(seedPhrase: List<String>): Boolean = false
+
+    override suspend fun isPhraseMatch(phrase: String, source: List<String>): Boolean = source.contains(phrase)
+}

features/onboarding/src/main/java/com/tangem/feature/onboarding/domain/SeedPhraseInteractor.kt

@@ -0,0 +1,21 @@
+package com.tangem.feature.onboarding.domain
+
+import com.tangem.feature.onboarding.data.DummySeedPhraseRepository
+import com.tangem.feature.onboarding.data.SeedPhraseRepository
+
+/**
+[REDACTED_AUTHOR]
+ */
+interface SeedPhraseInteractor : SeedPhraseChecker {
+    suspend fun generateSeedPhrase(): List<String>
+}
+
+class DummySeedPhraseInteractor(
+    private val sdkSeedPhraseRepository: SeedPhraseRepository = DummySeedPhraseRepository(),
+    private val seedPhraseChecker: SeedPhraseChecker = DummySeedPhraseChecker(),
+) : SeedPhraseInteractor, SeedPhraseChecker by seedPhraseChecker {
+
+    override suspend fun generateSeedPhrase(): List<String> {
+        return sdkSeedPhraseRepository.getWordList().wordlist
+    }
+}