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server: HistoryEra: replace NeDB callbacks with promises

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This commit is contained in:
Jesse Chan
2020-12-09 21:52:32 +08:00
parent 8940b2729f
commit 37a94912f4
6 changed files with 222 additions and 198 deletions
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80
server/services/historyService.ts
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@@ -93,19 +93,7 @@ class HistoryService extends BaseService<HistoryServiceEvents> {
};
}
deferFetchTransferSummary(interval = config.torrentClientPollInterval) {
this.pollTimeout = setTimeout(this.fetchCurrentTransferSummary, interval);
}
destroy() {
if (this.pollTimeout != null) {
clearTimeout(this.pollTimeout);
}
super.destroy();
}
fetchCurrentTransferSummary = () => {
private fetchCurrentTransferSummary = () => {
if (this.pollTimeout != null) {
clearTimeout(this.pollTimeout);
}
@@ -116,36 +104,11 @@ class HistoryService extends BaseService<HistoryServiceEvents> {
.catch(this.handleFetchTransferSummaryError);
};
getTransferSummary() {
return {
id: Date.now(),
transferSummary: this.transferSummary,
} as const;
private deferFetchTransferSummary(interval = config.torrentClientPollInterval) {
this.pollTimeout = setTimeout(this.fetchCurrentTransferSummary, interval);
}
getHistory({snapshot}: {snapshot: HistorySnapshot}, callback: (data: TransferHistory | null, error?: Error) => void) {
this.snapshots[snapshot]?.getData((transferSnapshots, error) => {
if (error || transferSnapshots == null) {
callback(null, error);
return;
}
callback(
transferSnapshots.reduce(
(history, transferSnapshot) => {
history.download.push(transferSnapshot.download);
history.upload.push(transferSnapshot.upload);
history.timestamps.push(transferSnapshot.timestamp);
return history;
},
{upload: [], download: [], timestamps: []} as TransferHistory,
),
);
});
}
handleFetchTransferSummarySuccess = (nextTransferSummary: TransferSummary) => {
private handleFetchTransferSummarySuccess = async (nextTransferSummary: TransferSummary): Promise<void> => {
const summaryDiff = jsonpatch.compare(this.transferSummary, nextTransferSummary);
this.emit('TRANSFER_SUMMARY_DIFF_CHANGE', {
@@ -155,7 +118,8 @@ class HistoryService extends BaseService<HistoryServiceEvents> {
this.errorCount = 0;
this.transferSummary = nextTransferSummary;
this.snapshots.FIVE_MINUTE.addData({
await this.snapshots.FIVE_MINUTE.addData({
upload: nextTransferSummary.upRate,
download: nextTransferSummary.downRate,
});
@@ -165,7 +129,7 @@ class HistoryService extends BaseService<HistoryServiceEvents> {
this.emit('FETCH_TRANSFER_SUMMARY_SUCCESS');
};
handleFetchTransferSummaryError = () => {
private handleFetchTransferSummaryError = () => {
let nextInterval = config.torrentClientPollInterval;
// If more than 2 consecutive errors have occurred, then we delay the next request.
@@ -178,6 +142,36 @@ class HistoryService extends BaseService<HistoryServiceEvents> {
this.emit('FETCH_TRANSFER_SUMMARY_ERROR');
};
destroy() {
if (this.pollTimeout != null) {
clearTimeout(this.pollTimeout);
}
super.destroy();
}
getTransferSummary() {
return {
id: Date.now(),
transferSummary: this.transferSummary,
} as const;
}
async getHistory({snapshot}: {snapshot: HistorySnapshot}): Promise<TransferHistory> {
return this.snapshots[snapshot]?.getData().then((transferSnapshots) =>
transferSnapshots.reduce(
(history, transferSnapshot) => {
history.download.push(transferSnapshot.download);
history.upload.push(transferSnapshot.upload);
history.timestamps.push(transferSnapshot.timestamp);
return history;
},
{upload: [], download: [], timestamps: []} as TransferHistory,
),
);
}
}
export default HistoryService;