1 files changed, 108 insertions, 0 deletions
diff --git a/packages/instant/src/components/zero_ex_instant_provider.tsx b/packages/instant/src/components/zero_ex_instant_provider.tsx
new file mode 100644
index 000000000..8c1025723
--- /dev/null
+++ b/packages/instant/src/components/zero_ex_instant_provider.tsx
@@ -0,0 +1,108 @@
+import { AssetBuyer } from '@0x/asset-buyer';
+import { ObjectMap, SignedOrder } from '@0x/types';
+import * as _ from 'lodash';
+import * as React from 'react';
+import { Provider } from 'react-redux';
+
+import { SelectedAssetThemeProvider } from '../containers/selected_asset_theme_provider';
+import { asyncData } from '../redux/async_data';
+import { INITIAL_STATE, State } from '../redux/reducer';
+import { store, Store } from '../redux/store';
+import { fonts } from '../style/fonts';
+import { AssetMetaData, Network } from '../types';
+import { assetUtils } from '../util/asset';
+import { BigNumberInput } from '../util/big_number_input';
+import { errorFlasher } from '../util/error_flasher';
+import { gasPriceEstimator } from '../util/gas_price_estimator';
+import { getProvider } from '../util/provider';
+import { web3Wrapper } from '../util/web3_wrapper';
+
+fonts.include();
+
+export type ZeroExInstantProviderProps = ZeroExInstantProviderRequiredProps &
+    Partial<ZeroExInstantProviderOptionalProps>;
+
+export interface ZeroExInstantProviderRequiredProps {
+    // TODO: Change API when we allow the selection of different assetDatas
+    assetData: string;
+    liquiditySource: string | SignedOrder[];
+}
+
+export interface ZeroExInstantProviderOptionalProps {
+    defaultAssetBuyAmount?: number;
+    additionalAssetMetaDataMap: ObjectMap<AssetMetaData>;
+    networkId: Network;
+}
+
+export class ZeroExInstantProvider extends React.Component<ZeroExInstantProviderProps> {
+    private readonly _store: Store;
+    private static _mergeInitialStateWithProps(props: ZeroExInstantProviderProps, state: State = INITIAL_STATE): State {
+        const networkId = props.networkId || state.network;
+        // TODO: Provider needs to not be hard-coded to injected web3.
+        const provider = getProvider();
+        const assetBuyerOptions = {
+            networkId,
+        };
+        let assetBuyer;
+        if (_.isString(props.liquiditySource)) {
+            assetBuyer = AssetBuyer.getAssetBuyerForStandardRelayerAPIUrl(
+                provider,
+                props.liquiditySource,
+                assetBuyerOptions,
+            );
+        } else {
+            assetBuyer = AssetBuyer.getAssetBuyerForProvidedOrders(provider, props.liquiditySource, assetBuyerOptions);
+        }
+        const completeAssetMetaDataMap = {
+            ...props.additionalAssetMetaDataMap,
+            ...state.assetMetaDataMap,
+        };
+        const storeStateFromProps: State = {
+            ...state,
+            assetBuyer,
+            network: networkId,
+            selectedAsset: assetUtils.createAssetFromAssetData(props.assetData, completeAssetMetaDataMap, networkId),
+            selectedAssetAmount: _.isUndefined(props.defaultAssetBuyAmount)
+                ? state.selectedAssetAmount
+                : new BigNumberInput(props.defaultAssetBuyAmount),
+            assetMetaDataMap: completeAssetMetaDataMap,
+        };
+        return storeStateFromProps;
+    }
+    constructor(props: ZeroExInstantProviderProps) {
+        super(props);
+        const initialAppState = ZeroExInstantProvider._mergeInitialStateWithProps(this.props, INITIAL_STATE);
+        this._store = store.create(initialAppState);
+    }
+
+    public componentDidMount(): void {
+        // tslint:disable-next-line:no-floating-promises
+        asyncData.fetchAndDispatchToStore(this._store);
+
+        // warm up the gas price estimator cache just in case we can't
+        // grab the gas price estimate when submitting the transaction
+        // tslint:disable-next-line:no-floating-promises
+        gasPriceEstimator.getFastAmountInWeiAsync();
+
+        // tslint:disable-next-line:no-floating-promises
+        this._flashErrorIfWrongNetwork();
+    }
+
+    public render(): React.ReactNode {
+        return (
+            <Provider store={this._store}>
+                <SelectedAssetThemeProvider>{this.props.children}</SelectedAssetThemeProvider>
+            </Provider>
+        );
+    }
+
+    private readonly _flashErrorIfWrongNetwork = async (): Promise<void> => {
+        const msToShowError = 30000; // 30 seconds
+        const network = this._store.getState().network;
+        const networkOfProvider = await web3Wrapper.getNetworkIdAsync();
+        if (network !== networkOfProvider) {
+            const errorMessage = `Wrong network detected. Try switching to ${Network[network]}.`;
+            errorFlasher.flashNewErrorMessage(this._store.dispatch, errorMessage, msToShowError);
+        }
+    };
+}