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import { Web3Wrapper } from '@0x/web3-wrapper';
import * as _ from 'lodash';
import { Middleware } from 'redux';
import { ETH_DECIMALS } from '../constants';
import { Account, AccountState, StandardSlidingPanelContent } from '../types';
import { analytics } from '../util/analytics';
import { Action, ActionTypes } from './actions';
import { State } from './reducer';
export const analyticsMiddleware: Middleware = store => next => middlewareAction => {
const prevState = store.getState() as State;
const prevAccount = prevState.providerState.account;
const nextAction = next(middlewareAction) as Action;
const curState = store.getState() as State;
const curAccount = curState.providerState.account;
switch (nextAction.type) {
case ActionTypes.SET_ACCOUNT_STATE_READY:
if (curAccount.state === AccountState.Ready) {
const didJustTurnReady = prevAccount.state !== AccountState.Ready;
const didJustUpdateAddress =
prevAccount.state === AccountState.Ready && prevAccount.address !== curAccount.address;
const ethAddress = curAccount.address;
if (didJustTurnReady) {
analytics.trackAccountReady(ethAddress);
analytics.addUserProperties({ lastKnownEthAddress: ethAddress });
} else if (didJustUpdateAddress) {
analytics.trackAccountAddressChanged(ethAddress);
analytics.addUserProperties({ lastKnownEthAddress: ethAddress });
}
}
break;
case ActionTypes.SET_ACCOUNT_STATE_LOCKED:
if (prevAccount.state !== AccountState.Locked && curAccount.state === AccountState.Locked) {
// if we are moving from account not locked to account locked, track `Account - Locked`
analytics.trackAccountLocked();
}
break;
case ActionTypes.UPDATE_ACCOUNT_ETH_BALANCE:
if (
curAccount.state === AccountState.Ready &&
curAccount.ethBalanceInWei &&
!_.isEqual(curAccount, prevAccount)
) {
const ethBalanceInUnitAmount = Web3Wrapper.toUnitAmount(
curAccount.ethBalanceInWei,
ETH_DECIMALS,
).toString();
analytics.addUserProperties({ ethBalanceInUnitAmount });
}
break;
case ActionTypes.UPDATE_SELECTED_ASSET:
const selectedAsset = curState.selectedAsset;
if (selectedAsset) {
const assetName = selectedAsset.metaData.name;
const assetData = selectedAsset.assetData;
analytics.trackTokenSelectorChose({
assetName,
assetData,
});
analytics.addEventProperties({
selectedAssetName: assetName,
selectedAssetData: assetData,
});
}
break;
case ActionTypes.SET_AVAILABLE_ASSETS:
const availableAssets = curState.availableAssets;
if (availableAssets) {
analytics.addEventProperties({
numberAvailableAssets: availableAssets.length,
});
}
break;
case ActionTypes.OPEN_STANDARD_SLIDING_PANEL:
const openSlidingContent = curState.standardSlidingPanelSettings.content;
if (openSlidingContent === StandardSlidingPanelContent.InstallWallet) {
analytics.trackInstallWalletModalOpened();
}
break;
case ActionTypes.CLOSE_STANDARD_SLIDING_PANEL:
const closeSlidingContent = curState.standardSlidingPanelSettings.content;
if (closeSlidingContent === StandardSlidingPanelContent.InstallWallet) {
analytics.trackInstallWalletModalClosed();
}
break;
}
return nextAction;
};
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