Updated on 2026-08-14

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnError.kt

@@ -0,0 +1,16 @@
+package com.tangem.domain.models.earn
+
+import java.util.UUID
+
+sealed interface EarnError {
+
+    data class HttpError(
+        val id: String = UUID.randomUUID().toString(),
+        val code: Int,
+        val message: String,
+    ) : EarnError
+
+    data class NotHttpError(
+        val id: String = UUID.randomUUID().toString(),
+    ) : EarnError
+}

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnNetwork.kt

@@ -0,0 +1,14 @@
+package com.tangem.domain.models.earn
+
+import kotlinx.serialization.Serializable
+
+/**
+ * Model for networks in Earn.
+ * @param networkId - id of network
+ * @param isAdded - is exists in any user's wallet
+ */
+@Serializable
+data class EarnNetwork(
+    val networkId: String,
+    val isAdded: Boolean,
+)

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnNetworks.kt

@@ -0,0 +1,5 @@
+package com.tangem.domain.models.earn
+
+import arrow.core.Either
+
+typealias EarnNetworks = Either<EarnError, List<EarnNetwork>>

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnToken.kt

@@ -0,0 +1,35 @@
+package com.tangem.domain.models.earn
+
+import kotlinx.serialization.Serializable
+
+/**
+ * Model of earn token.
+ * @param apy - percent of earning
+ * @param networkId - id of network
+ * @param rewardType - apr or apy
+ * @param type - staking or yield
+ * @param tokenSymbol - symbol of token (ex. "ATOM")
+ * @param tokenName - name of token (ex. "Cosmos Hub")
+ * @param tokenId - id of token (ex. "cosmos")
+ * @param tokenAddress - address of contract
+ */
+@Serializable
+data class EarnToken(
+    val apy: String,
+    val networkId: String,
+    val rewardType: EarnRewardType,
+    val type: EarnType,
+    val tokenId: String,
+    val tokenSymbol: String,
+    val tokenName: String,
+    val tokenAddress: String,
+    val decimalCount: Int?,
+)
+
+enum class EarnRewardType {
+    APR, APY
+}
+
+enum class EarnType {
+    STAKING, YIELD
+}

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnTokenWithCurrency.kt

@@ -0,0 +1,17 @@
+package com.tangem.domain.models.earn
+
+import com.tangem.domain.models.currency.CryptoCurrency
+import kotlinx.serialization.Serializable
+
+/**
+ * Represents an earn token and its associated cryptocurrency. This model is only for main account.
+ *
+ * @property earnToken The earn token details.
+ * @property cryptoCurrency Use this [CryptoCurrency] only for creating the cryptoCurrencyIcon!!!!
+ */
+@Serializable
+data class EarnTokenWithCurrency(
+    val networkName: String,
+    val earnToken: EarnToken,
+    val cryptoCurrency: CryptoCurrency,
+)

domain/models/src/main/kotlin/com/tangem/domain/models/earn/EarnTopToken.kt

@@ -0,0 +1,5 @@
+package com.tangem.domain.models.earn
+
+import arrow.core.Either
+
+typealias EarnTopToken = Either<EarnError, List<EarnTokenWithCurrency>>

domain/models/src/main/kotlin/com/tangem/domain/models/wallet/UserWallet.kt

@@ -110,4 +110,5 @@ val UserWallet.isLocked
         is UserWallet.Hot -> isLocked
     }
 
-inline val UserWallet.isHotWallet get() = this is UserWallet.Hot
+inline val UserWallet.isHotWallet get() = this is UserWallet.Hot
+inline val UserWallet.isColdWallet get() = this is UserWallet.Cold