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authorFabio Berger <me@fabioberger.com>2017-11-22 04:03:08 +0800
committerFabio Berger <me@fabioberger.com>2017-11-22 04:03:08 +0800
commit3660ba28d73d70d08bf14c33ef680e5ef3ec7f3b (patch)
treef101656799da807489253e17bea7abfaea90b62d /packages/website/ts/local_storage/tracked_token_storage.ts
parent037f466e1f80f635b48f3235258402e2ce75fb7b (diff)
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Add website to mono repo, update packages to align with existing sub-packages, use new subscribeAsync 0x.js method
Diffstat (limited to 'packages/website/ts/local_storage/tracked_token_storage.ts')
-rw-r--r--packages/website/ts/local_storage/tracked_token_storage.ts56
1 files changed, 56 insertions, 0 deletions
diff --git a/packages/website/ts/local_storage/tracked_token_storage.ts b/packages/website/ts/local_storage/tracked_token_storage.ts
new file mode 100644
index 000000000..0b54a66e0
--- /dev/null
+++ b/packages/website/ts/local_storage/tracked_token_storage.ts
@@ -0,0 +1,56 @@
+import * as _ from 'lodash';
+import {Token, TrackedTokensByNetworkId} from 'ts/types';
+import {localStorage} from 'ts/local_storage/local_storage';
+
+const TRACKED_TOKENS_KEY = 'trackedTokens';
+
+export const trackedTokenStorage = {
+ addTrackedTokenToUser(userAddress: string, networkId: number, token: Token) {
+ const trackedTokensByUserAddress = this.getTrackedTokensByUserAddress();
+ let trackedTokensByNetworkId = trackedTokensByUserAddress[userAddress];
+ if (_.isUndefined(trackedTokensByNetworkId)) {
+ trackedTokensByNetworkId = {};
+ }
+ const trackedTokens = !_.isUndefined(trackedTokensByNetworkId[networkId]) ?
+ trackedTokensByNetworkId[networkId] :
+ [];
+ trackedTokens.push(token);
+ trackedTokensByNetworkId[networkId] = trackedTokens;
+ trackedTokensByUserAddress[userAddress] = trackedTokensByNetworkId;
+ const trackedTokensByUserAddressJSONString = JSON.stringify(trackedTokensByUserAddress);
+ localStorage.setItem(TRACKED_TOKENS_KEY, trackedTokensByUserAddressJSONString);
+ },
+ getTrackedTokensByUserAddress(): TrackedTokensByNetworkId {
+ const trackedTokensJSONString = localStorage.getItemIfExists(TRACKED_TOKENS_KEY);
+ if (_.isEmpty(trackedTokensJSONString)) {
+ return {};
+ }
+ const trackedTokensByUserAddress = JSON.parse(trackedTokensJSONString);
+ return trackedTokensByUserAddress;
+ },
+ getTrackedTokensIfExists(userAddress: string, networkId: number): Token[] {
+ const trackedTokensJSONString = localStorage.getItemIfExists(TRACKED_TOKENS_KEY);
+ if (_.isEmpty(trackedTokensJSONString)) {
+ return undefined;
+ }
+ const trackedTokensByUserAddress = JSON.parse(trackedTokensJSONString);
+ const trackedTokensByNetworkId = trackedTokensByUserAddress[userAddress];
+ if (_.isUndefined(trackedTokensByNetworkId)) {
+ return undefined;
+ }
+ const trackedTokens = trackedTokensByNetworkId[networkId];
+ return trackedTokens;
+ },
+ removeTrackedToken(userAddress: string, networkId: number, tokenAddress: string) {
+ const trackedTokensByUserAddress = this.getTrackedTokensByUserAddress();
+ const trackedTokensByNetworkId = trackedTokensByUserAddress[userAddress];
+ const trackedTokens = trackedTokensByNetworkId[networkId];
+ const remainingTrackedTokens = _.filter(trackedTokens, (token: Token) => {
+ return token.address !== tokenAddress;
+ });
+ trackedTokensByNetworkId[networkId] = remainingTrackedTokens;
+ trackedTokensByUserAddress[userAddress] = trackedTokensByNetworkId;
+ const trackedTokensByUserAddressJSONString = JSON.stringify(trackedTokensByUserAddress);
+ localStorage.setItem(TRACKED_TOKENS_KEY, trackedTokensByUserAddressJSONString);
+ },
+};