init time series

packages/time-series/lib/commands/INFO.ts

@@ -0,0 +1,82 @@
+import { TimeSeriesAggregationType, TimeSeriesDuplicatePolicies } from '.';
+
+export const FIRST_KEY_INDEX = 1;
+
+export const IS_READ_ONLY = true;
+
+export function transformArguments(key: string): Array<string> {
+    return ['TS.INFO', key];
+}
+
+export type InfoRawReply = [
+    _: string,
+    totalSamples: number,
+    _: string,
+    memoryUsage: number,
+    _: string,
+    firstTimestamp: number,
+    _: string,
+    lastTimestamp: number,
+    _: string,
+    retentionTime: number,
+    _: string,
+    chunkCount: number,
+    _: string,
+    chunkSize: number,
+    _: string,
+    chunkType: string,
+    _: string,
+    duplicatePolicy: TimeSeriesDuplicatePolicies | null,
+    _: string,
+    labels: Array<[name: string, value: string]>,
+    _: string,
+    sourceKey: string | null,
+    _: string,
+    rules: Array<[key: string, timeBucket: number, aggregationType: TimeSeriesAggregationType]>
+];
+
+export interface InfoReply {
+    totalSamples: number;
+    memoryUsage: number;
+    firstTimestamp: number;
+    lastTimestamp: number;
+    retentionTime: number;
+    chunkCount: number;
+    chunkSize: number;
+    chunkType: string;
+    duplicatePolicy: TimeSeriesDuplicatePolicies | null;
+    labels: Array<{
+        name: string;
+        value: string;
+    }>;
+    sourceKey: string | null;
+    rules: Array<{
+        key: string;
+        timeBucket: number;
+        aggregationType: TimeSeriesAggregationType
+    }>;
+}
+
+export function transformReply(reply: InfoRawReply): InfoReply {
+    return {
+        totalSamples: reply[1],
+        memoryUsage: reply[3],
+        firstTimestamp: reply[5],
+        lastTimestamp: reply[7],
+        retentionTime: reply[9],
+        chunkCount: reply[11],
+        chunkSize: reply[13],
+        chunkType: reply[15],
+        duplicatePolicy: reply[17],
+        labels: reply[19].map(([name, value]) => ({
+            name,
+            value
+        })),
+        sourceKey: reply[21],
+        rules: reply[23].map(([key, timeBucket, aggregationType]) => ({
+            key,
+            timeBucket,
+            aggregationType
+        }))
+    };
+}