added preview network

packages/yoroi-extension/app/api/ada/lib/storage/database/prepackaged/explorers.js

@@ -163,10 +163,27 @@ const AlonzoTestnetExplorers: Array<$ReadOnly<ExplorerRow>> = [
   },
 ];
 
+const CardanoPreviewTestnetExplorers: Array<$ReadOnly<ExplorerRow>> = [
+  {
+    ExplorerId: 5_50,
+    NetworkId: networks.CardanoPreviewTestnet.NetworkId,
+    IsBackup: true,
+    Endpoints: {
+      address: 'https://preview.cardanoscan.io/address/',
+      transaction: 'https://preview.cardanoscan.io/transaction/',
+      pool: 'https://preview.cardanoscan.io/pool/',
+      stakeAddress: 'https://preview.cardanoscan.io/stakeKey/',
+      token: 'https://preview.cardanoscan.io/token/',
+    },
+    Name: 'CardanoScan',
+  },
+];
+
 export const prepackagedExplorers: Map<number, $ReadOnlyArray<$ReadOnly<ExplorerRow>>> = new Map([
   [networks.CardanoMainnet.NetworkId, CardanoMainnetExplorers],
   [networks.CardanoTestnet.NetworkId, CardanoTestnetExplorers],
   [networks.CardanoPreprodTestnet.NetworkId, CardanoPreprodTestnetExplorers],
+  [networks.CardanoPreviewTestnet.NetworkId, CardanoPreviewTestnetExplorers],
   [networks.JormungandrMainnet.NetworkId, JormungandrExplorers],
   [networks.ErgoMainnet.NetworkId, ErgoExplorers],
   [networks.AlonzoTestnet.NetworkId, AlonzoTestnetExplorers],
@@ -184,7 +201,10 @@ export const prepackagedDefaultExplorers:
       CardanoTestnetExplorers.find(explorer => explorer.IsBackup)
     )],
     [networks.CardanoPreprodTestnet.NetworkId, getOrThrow(
-      CardanoTestnetExplorers.find(explorer => explorer.IsBackup)
+      CardanoPreprodTestnetExplorers.find(explorer => explorer.IsBackup)
+    )],
+    [networks.CardanoPreviewTestnet.NetworkId, getOrThrow(
+      CardanoPreviewTestnetExplorers.find(explorer => explorer.IsBackup)
     )],
     [networks.JormungandrMainnet.NetworkId, getOrThrow(
       JormungandrExplorers.find(explorer => explorer.IsBackup)

packages/yoroi-extension/app/api/ada/lib/storage/database/prepackaged/networks.js

@@ -240,14 +240,55 @@ export const networks = Object.freeze({
     CoinType: CoinTypes.CARDANO,
     Fork: CardanoForks.Haskell,
   }: NetworkRow),
+  CardanoPreviewTestnet: ({
+    NetworkId: 3_50,
+    NetworkName: 'Cardano Preview Testnet',
+    Backend: {
+      BackendService: environment.isTest()
+        ? 'http://localhost:21000'
+        : 'https://preview-backend.emurgornd.com',
+      WebSocket: environment.isTest()
+        ? 'ws://localhost:21000'
+        : 'wss://preview-backend.emurgornd.com:443',
+      TokenInfoService:
+        'https://stage-cdn.yoroiwallet.com',
+    },
+    BaseConfig: ([
+      Object.freeze({
+        StartAt: 0,
+        ChainNetworkId: '0',
+        ByronNetworkId: 2,
+        GenesisDate: '1666656000000',
+        SlotsPerEpoch: 21600,
+        SlotDuration: 20,
+      }),
+      Object.freeze({
+        StartAt: 0,
+        SlotsPerEpoch: 86400,
+        SlotDuration: 1,
+        PerEpochPercentageReward: 69344,
+        LinearFee: {
+          coefficient: '44',
+          constant: '155381',
+        },
+        CoinsPerUtxoWord: '34482',
+        MinimumUtxoVal: '1000000',
+        PoolDeposit: '500000000',
+        KeyDeposit: '2000000',
+      })
+    ]: CardanoHaskellBaseConfig),
+    CoinType: CoinTypes.CARDANO,
+    Fork: CardanoForks.Haskell,
+  }: NetworkRow),
 });
 
 export function isTestnet(
   network: $ReadOnly<NetworkRow>,
 ): boolean {
   return network.NetworkId === networks.JormungandrMainnet.NetworkId
     || network.NetworkId === networks.CardanoTestnet.NetworkId
-    || network.NetworkId === networks.CardanoPreprodTestnet.NetworkId;
+    || network.NetworkId === networks.CardanoPreprodTestnet.NetworkId
+    || network.NetworkId === networks.CardanoPreviewTestnet.NetworkId;
 
 }
 
@@ -330,7 +371,10 @@ export const defaultAssets: Array<
           policyId: PRIMARY_ASSET_CONSTANTS.Cardano,
           assetName: PRIMARY_ASSET_CONSTANTS.Cardano,
           ticker:
-            (network === networks.CardanoTestnet || network === networks.CardanoPreprodTestnet || network === networks.AlonzoTestnet)
+            (network === networks.CardanoTestnet
+              || network === networks.CardanoPreprodTestnet
+              || network === networks.CardanoPreviewTestnet
+              || network === networks.AlonzoTestnet)
               ? 'TADA'
               : 'ADA',
           longName: null,

packages/yoroi-extension/app/components/wallet/add/option-dialog/PickCurrencyOptionDialog.js

@@ -37,6 +37,7 @@ type Props = {|
   +onCardano: void => void,
   +onCardanoTestnet: void => void,
   +onCardanoPreprodTestnet: void => void,
+  +onCardanoPreviewTestnet: void => void,
   +onErgo: void | (void => void),
   +onAlonzoTestnet: void => void,
   +onExternalLinkClick: MouseEvent => void,
@@ -97,6 +98,26 @@ export default class PickCurrencyOptionDialog extends Component<Props> {
                 />
               </>
             }
+            {(!environment.isProduction() || environment.isNightly() || environment.isTest()) &&
+              <>
+                <OptionBlock
+                  parentName="PickCurrencyOptionDialog"
+                  type="cardanoTestnet"
+                  title="Cardano Preview Testnet"
+                  onSubmit={this.props.onCardanoPreviewTestnet}
+                  learnMoreText={
+                    <>
+                      {intl.formatMessage(messages.testnetDescription)}<br />
+                      <a
+                        href="https://testnets.cardano.org/"
+                        onClick={event => this.props.onExternalLinkClick(event)}
+                      >
+                        {intl.formatMessage(globalMessages.learnMore)}
+                      </a>
+                    </>}
+                />
+              </>
+            }
             {/* <TODO:PENDING_REMOVAL> */}
             {/*{(!environment.isProduction() || environment.isNightly() || environment.isTest()) &&*/}
             {/*  <OptionBlock*/}

packages/yoroi-extension/app/containers/wallet/WalletAddPage.js

@@ -142,6 +142,7 @@ class WalletAddPage extends Component<AllProps> {
         onCardano={() => actions.profile.setSelectedNetwork.trigger(networks.CardanoMainnet)}
         onCardanoTestnet={() => actions.profile.setSelectedNetwork.trigger(networks.CardanoTestnet)}
         onCardanoPreprodTestnet={() => actions.profile.setSelectedNetwork.trigger(networks.CardanoPreprodTestnet)}
+        onCardanoPreviewTestnet={() => actions.profile.setSelectedNetwork.trigger(networks.CardanoPreviewTestnet)}
         onErgo={(uiDialogs.isOpen(WalletConnectHWOptionDialog) || uiDialogs.isOpen(WalletCreateOptionDialog))
           ? undefined
           : () => actions.profile.setSelectedNetwork.trigger(networks.ErgoMainnet)}

packages/yoroi-extension/app/containers/wallet/dialogs/PickCurrencyDialogContainer.js

@@ -10,6 +10,7 @@ type Props = {|
   +onCardano: void => void,
   +onCardanoTestnet: void => void,
   +onCardanoPreprodTestnet: void => void,
+  +onCardanoPreviewTestnet: void => void,
   +onErgo: void | (void => void),
   +onAlonzoTestnet: void => void,
 |};
@@ -25,6 +26,7 @@ export default class PickCurrencyDialogContainer extends Component<Props> {
         onCardano={this.props.onCardano}
         onCardanoTestnet={this.props.onCardanoTestnet}
         onCardanoPreprodTestnet={this.props.onCardanoPreprodTestnet}
+        onCardanoPreviewTestnet={this.props.onCardanoPreviewTestnet}
         onErgo={this.props.onErgo}
         onAlonzoTestnet={this.props.onAlonzoTestnet}
       />

packages/yoroi-extension/app/stores/stateless/topbarCategories.js

@@ -139,6 +139,7 @@ export const CARDANO_DELEGATION: TopbarCategory = registerCategory({
       (environment.isTest()
         || networkId === networks.CardanoTestnet.NetworkId
         || networkId === networks.CardanoPreprodTestnet.NetworkId
+        || networkId === networks.CardanoPreviewTestnet.NetworkId
       );
   },
 });

packages/yoroi-extension/chrome/manifest.development.js

@@ -19,6 +19,7 @@ export default (isDebug: boolean, shouldInjectConnector: boolean): * => buildMan
     additional: {
       'connect-src': [
         serverToPermission(Servers.Primary),
+        serverToPermission(Servers.Testnet),
       ],
       'frame-src': [
         POOLS_UI_URL_FOR_YOROI,

packages/yoroi-extension/chrome/manifest.mainnet.js

@@ -21,6 +21,7 @@ export default (isDebug: boolean, shouldInjectConnector: boolean): * => buildMan
     additional: {
       'connect-src': [
         serverToPermission(Servers.Primary),
+        serverToPermission(Servers.Testnet),
       ],
       'frame-src': [
         POOLS_UI_URL_FOR_YOROI,

packages/yoroi-extension/chrome/manifest.shelley-testnet.js

@@ -20,6 +20,7 @@ export default (isDebug: boolean, shouldInjectConnector: boolean): * => buildMan
     additional: {
       'connect-src': [
         serverToPermission(Servers.Primary),
+        serverToPermission(Servers.Testnet),
       ],
       'frame-src': [
         POOLS_UI_URL_FOR_YOROI,

packages/yoroi-extension/scripts/connections.js

@@ -20,6 +20,7 @@ const Ports = {
 const Servers = {
   // this allows connecting to multiple different backends for different currencies
   Primary: '*.yoroiwallet.com',
+  Testnet: '*.emurgornd.com',
 };
 
 module.exports = {