Manage wallet lifecycle states

// Checks if the user has created a wallet on any device.
portal.doesWalletExistOrThrow()

// Checks if the user's wallet share is on their current device.
portal.isWalletOnDeviceOrThrow()

// Checks if the user has backed up their wallet.
portal.isWalletBackedUpOrThrow()

// Checks if the user can recover their wallet.
portal.isWalletRecoverableOrThrow()

// Returns a list of available recovery methods based on the user's backups.
portal.availableRecoveryMethods()

suspend fun manageWalletState(portal: Portal) {
    try {
        // Determine the wallet's state.
        val walletExists = portal.doesWalletExistOrThrow()
        val walletExistsOnDevice = portal.isWalletOnDeviceOrThrow()
        val walletIsRecoverable = portal.isWalletRecoverableOrThrow()

        if (!walletExists) {
            // Create and back up the wallet using portal.createWallet() and portal.backup().
        } else if (!walletExistsOnDevice) {
            if (walletIsRecoverable) {
                // Recover the wallet using portal.recover().
            } else {
                // Inform the user to back up the wallet on the original device.
            }
        } else {
            // The wallet is ready to use.
        }
    } catch(e: Exception) {
        // Handle any errors that occur.
    }
}