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metamask-extension/app/scripts/migrations/063.js

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import { cloneDeep } from 'lodash';
const version = 63;
/**
* Moves token state from preferences controller to TokensController
*/
export default {
version,
async migrate(originalVersionedData) {
const versionedData = cloneDeep(originalVersionedData);
versionedData.meta.version = version;
const state = versionedData.data;
const newState = transformState(state);
versionedData.data = newState;
return versionedData;
},
};
function transformState(state) {
const accountTokens = state?.PreferencesController?.accountTokens;
const accountHiddenTokens = state?.PreferencesController?.accountHiddenTokens;
const newAllTokens = {};
if (accountTokens) {
Object.keys(accountTokens).forEach((accountAddress) => {
Object.keys(accountTokens[accountAddress]).forEach((chainId) => {
const tokensArray = accountTokens[accountAddress][chainId];
if (newAllTokens[chainId] === undefined) {
newAllTokens[chainId] = { [accountAddress]: tokensArray };
} else {
newAllTokens[chainId] = {
...newAllTokens[chainId],
[accountAddress]: tokensArray,
};
}
});
});
}
const newAllIgnoredTokens = {};
if (accountHiddenTokens) {
Object.keys(accountHiddenTokens).forEach((accountAddress) => {
Object.keys(accountHiddenTokens[accountAddress]).forEach((chainId) => {
const ignoredTokensArray = accountHiddenTokens[accountAddress][chainId];
if (newAllIgnoredTokens[chainId] === undefined) {
newAllIgnoredTokens[chainId] = {
[accountAddress]: ignoredTokensArray,
};
} else {
newAllIgnoredTokens[chainId] = {
...newAllIgnoredTokens[chainId],
[accountAddress]: ignoredTokensArray,
};
}
});
});
}
if (state.TokensController) {
state.TokensController.allTokens = newAllTokens;
state.TokensController.allIgnoredTokens = newAllIgnoredTokens;
} else {
state.TokensController = {
allTokens: newAllTokens,
allIgnoredTokens: newAllIgnoredTokens,
};
}
delete state?.PreferencesController?.accountHiddenTokens;
delete state?.PreferencesController?.accountTokens;
delete state?.PreferencesController?.assetImages;
delete state?.PreferencesController?.hiddenTokens;
delete state?.PreferencesController?.tokens;
delete state?.PreferencesController?.suggestedTokens;
return state;
}