forked from pinks/eris
101 lines
2.9 KiB
TypeScript
101 lines
2.9 KiB
TypeScript
import { minutesToMilliseconds } from "date-fns";
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import { Store } from "indexed_kv";
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import { getLogger } from "std/log/mod.ts";
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import { JsonSchema, jsonType } from "t_rest/server";
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import { db } from "./db.ts";
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import { generationStore } from "./generationStore.ts";
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import { kvMemoize } from "./kvMemoize.ts";
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const logger = () => getLogger();
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export const userStatsSchema = {
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type: "object",
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properties: {
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userId: { type: "number" },
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imageCount: { type: "number" },
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pixelCount: { type: "number" },
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tagsCount: {
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type: "object",
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additionalProperties: { type: "number" },
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},
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timestamp: { type: "number" },
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},
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required: ["userId", "imageCount", "pixelCount", "tagsCount", "timestamp"],
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} as const satisfies JsonSchema;
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export type UserStats = jsonType<typeof userStatsSchema>;
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type UserStatsIndices = {
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userId: number;
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imageCount: number;
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pixelCount: number;
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};
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const userStatsStore = new Store<UserStats, UserStatsIndices>(
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db,
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"userStats",
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{
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indices: {
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userId: { getValue: (item) => item.userId },
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imageCount: { getValue: (item) => item.imageCount },
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pixelCount: { getValue: (item) => item.pixelCount },
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},
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},
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);
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export const getUserStats = kvMemoize(
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db,
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["userStats"],
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async (userId: number): Promise<UserStats> => {
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let imageCount = 0;
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let pixelCount = 0;
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const tagsCount: Record<string, number> = {};
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logger().info(`Calculating user stats for ${userId}`);
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for await (
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const generation of generationStore.listBy("fromId", { value: userId })
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) {
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imageCount++;
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pixelCount += (generation.value.info?.width ?? 0) * (generation.value.info?.height ?? 0);
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const tags = generation.value.info?.prompt.split(/[,;.\n]/)
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.map((tag) => tag.trim())
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.filter((tag) => tag.length > 0)
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.map((tag) => tag.toLowerCase())
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.map((tag) => tag.replace(/[()[\]]/, ""))
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.map((tag) => tag.replace(/:[\d.]/g, ""))
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.map((tag) => tag.replace(/ +/g, " ")) ?? [];
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for (const tag of tags) {
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tagsCount[tag] = (tagsCount[tag] ?? 0) + 1;
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}
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}
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return {
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userId,
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imageCount,
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pixelCount,
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tagsCount,
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timestamp: Date.now(),
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};
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},
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{
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// expire in random time between 5-10 minutes
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expireIn: () => minutesToMilliseconds(5 + Math.random() * 5),
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// override default set/get behavior to use userStatsStore
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override: {
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get: async (_key, [userId]) => {
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const items = await userStatsStore.getBy("userId", { value: userId }, { reverse: true });
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return items[0]?.value;
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},
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set: async (_key, [userId], value, options) => {
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// delete old stats
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for await (const item of userStatsStore.listBy("userId", { value: userId })) {
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await item.delete();
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}
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// set new stats
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await userStatsStore.create(value, options);
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},
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},
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},
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);
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