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Updated on 2026-08-14

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Tangem 2025-04-08 14:10:50 +07:00
parent c8c4f67018
commit dfaf4e4e77
16 changed files with 511 additions and 108 deletions
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9
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/respond/WcRespondService.kt
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@ -1,9 +0,0 @@
package com.tangem.domain.walletconnect.respond
import arrow.core.Either
import com.tangem.domain.walletconnect.model.sdkcopy.WcSdkSessionRequest
interface WcRespondService {
suspend fun respond(request: WcSdkSessionRequest, response: String): Either<Throwable, Unit>
suspend fun rejectRequest(request: WcSdkSessionRequest, message: String = ""): Either<Throwable, Unit>
}

25
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/usecase/WcSimpleSignUseCase.kt
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@ -1,25 +0,0 @@
package com.tangem.domain.walletconnect.usecase
import arrow.core.Either
import kotlinx.coroutines.flow.Flow
interface WcSimpleSignUseCase<SignModel, MiddleAction> : WcUseCase {
fun signFlow(initModel: SignModel): Flow<State<SignModel>>
fun action(action: MiddleAction)
fun cancel()
fun sign(toSign: SignModel)
sealed interface State<SignModel> {
val model: SignModel
data class PreSign<SignModel>(override val model: SignModel) : State<SignModel>
data class Signing<SignModel>(override val model: SignModel) : State<SignModel>
data class Result<SignModel>(
val result: Either<Throwable, Unit>,
override val model: SignModel,
) : State<SignModel>
}
}

10
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/usecase/WcUseCase.kt
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@ -1,3 +1,11 @@
package com.tangem.domain.walletconnect.usecase
interface WcUseCase
import com.tangem.domain.walletconnect.model.WcSession
import com.tangem.domain.walletconnect.model.sdkcopy.WcSdkSessionRequest
interface WcUseCase
interface WcMethodUseCase : WcUseCase {
val session: WcSession
val rawSdkRequest: WcSdkSessionRequest
}

72
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/usecase/ethereum/EthPersonalSignUseCase.kt
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@ -1,72 +0,0 @@
package com.tangem.domain.walletconnect.usecase.ethereum
import arrow.core.Either
import com.tangem.domain.walletconnect.model.WcRequest
import com.tangem.domain.walletconnect.respond.WcRespondService
import com.tangem.domain.walletconnect.usecase.WcUseCase
import kotlinx.coroutines.channels.Channel
import kotlinx.coroutines.flow.*
class EthPersonalSignUseCase(
private val wcRequest: WcRequest<WcEthMethod.SignMessage>,
private val respondService: WcRespondService,
) : WcUseCase {
private val onCallTerminalAction = Channel<TerminalAction>()
fun signFlow(): Flow<State> = flow {
val model = SignModel(wcRequest.method.raw)
emit(State.PreSign(model))
when (val action = onCallTerminalAction.receiveAsFlow().first()) {
TerminalAction.Cancel -> {
val result = respondService.rejectRequest(wcRequest.rawSdkRequest)
emit(State.Result(result, model))
}
is TerminalAction.Sign -> {
emit(State.Signing(action.toSign))
val signed = signAndPrepareForSend()
val result =
if (signed != null) {
respondService.respond(wcRequest.rawSdkRequest, signed)
} else {
respondService.rejectRequest(wcRequest.rawSdkRequest)
}
emit(State.Result(result, model))
}
}
}
@Suppress("FunctionOnlyReturningConstant") // todo(wc) remove later
private suspend fun signAndPrepareForSend(): String? {
return null // todo(wc)
}
fun sign(toSign: SignModel) {
onCallTerminalAction.trySend(TerminalAction.Sign(toSign))
}
fun cancel() {
onCallTerminalAction.trySend(TerminalAction.Cancel)
}
sealed interface TerminalAction {
data class Sign(val toSign: SignModel) : TerminalAction
data object Cancel : TerminalAction
}
sealed interface State {
val model: SignModel
data class PreSign(override val model: SignModel) : State
data class Signing(override val model: SignModel) : State
data class Result(
val result: Either<Throwable, Unit>,
override val model: SignModel,
) : State
}
data class SignModel(
val raw: List<String>,
)
}

14
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/usecase/sign/WcSignState.kt Normal file
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@ -0,0 +1,14 @@
package com.tangem.domain.walletconnect.usecase.sign
import arrow.core.Either
data class WcSignState<SignModel>(
val signModel: SignModel,
val domainStep: WcSignStep,
)
sealed interface WcSignStep {
data object PreSign : WcSignStep
data object Signing : WcSignStep
data class Result(val result: Either<Throwable, Unit>) : WcSignStep
}

20
domain/wallet-connect/src/main/kotlin/com/tangem/domain/walletconnect/usecase/sign/WcSignUseCase.kt Normal file
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@ -0,0 +1,20 @@
package com.tangem.domain.walletconnect.usecase.sign
import com.tangem.domain.walletconnect.usecase.WcMethodUseCase
import kotlinx.coroutines.flow.Flow
interface WcSignUseCase : WcMethodUseCase {
interface FinalAction {
fun cancel()
fun sign()
}
interface SimpleRun<SignModel> {
operator fun invoke(): Flow<WcSignState<SignModel>>
}
interface ArgsRun<SignModel, Args> {
operator fun invoke(args: Args): Flow<WcSignState<SignModel>>
}
}