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import * as bowser from 'bowser';
import { Provider } from 'ethereum-types';
import * as _ from 'lodash';
import { PROVIDER_TYPE_TO_NAME } from '../constants';
import { Browser, OperatingSystem, ProviderType } from '../types';
export const envUtil = {
getBrowser(): Browser {
if (bowser.chrome) {
return Browser.Chrome;
} else if (bowser.firefox) {
return Browser.Firefox;
} else if (bowser.opera) {
return Browser.Opera;
} else if (bowser.msedge) {
return Browser.Edge;
} else if (bowser.safari) {
return Browser.Safari;
} else {
return Browser.Other;
}
},
isMobileOperatingSystem(): boolean {
return bowser.mobile;
},
getOperatingSystem(): OperatingSystem {
if (bowser.android) {
return OperatingSystem.Android;
} else if (bowser.ios) {
return OperatingSystem.iOS;
} else if (bowser.mac) {
return OperatingSystem.Mac;
} else if (bowser.windows) {
return OperatingSystem.Windows;
} else if (bowser.windowsphone) {
return OperatingSystem.WindowsPhone;
} else if (bowser.linux) {
return OperatingSystem.Linux;
} else {
return OperatingSystem.Other;
}
},
getProviderType(provider: Provider): ProviderType | undefined {
const anyProvider = provider as any;
if (provider.constructor.name === 'EthereumProvider') {
return ProviderType.Mist;
} else if (anyProvider.isTrust) {
return ProviderType.TrustWallet;
} else if (anyProvider.isParity) {
return ProviderType.Parity;
} else if (anyProvider.isMetaMask) {
return ProviderType.MetaMask;
} else if (!_.isUndefined(_.get(window, 'SOFA'))) {
return ProviderType.CoinbaseWallet;
} else if (!_.isUndefined(_.get(window, '__CIPHER__'))) {
return ProviderType.Cipher;
} else if (envUtil.getBrowser() === Browser.Opera && !anyProvider.isMetaMask) {
return ProviderType.Opera;
}
return;
},
getProviderName(provider: Provider): string {
const providerTypeIfExists = envUtil.getProviderType(provider);
if (_.isUndefined(providerTypeIfExists)) {
return provider.constructor.name;
}
return PROVIDER_TYPE_TO_NAME[providerTypeIfExists];
},
getProviderDisplayName(provider: Provider): string {
const providerTypeIfExists = envUtil.getProviderType(provider);
if (_.isUndefined(providerTypeIfExists)) {
return 'Wallet';
}
return PROVIDER_TYPE_TO_NAME[providerTypeIfExists];
},
};
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