Jon Staab
105 lines
2.9 KiB
TypeScript
105 lines
2.9 KiB
TypeScript
import type {Filter} from '@welshman/util'
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export enum FeedType {
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Difference = "difference",
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Intersection = "intersection",
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SymmetricDifference = "symdiff",
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Union = "union",
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Filter = "filter",
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Relay = "relay",
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List = "list",
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DVM = "dvm",
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}
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export enum Scope {
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Followers = "followers",
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Follows = "follows",
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Network = "network",
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Self = "self",
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}
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export type DynamicFilter = Filter & {
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scopes?: Scope[]
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min_wot?: number
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max_wot?: number
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until_ago?: number
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since_ago?: number
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}
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export type RelayFeed = [FeedType.Relay, string[], ...Feed[]]
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export type DifferenceFeed = [FeedType.Difference, ...Feed[]]
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export type IntersectionFeed = [FeedType.Intersection, ...Feed[]]
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export type SymmetricDifferenceFeed = [FeedType.SymmetricDifference, ...Feed[]]
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export type UnionFeed = [FeedType.Union, ...Feed[]]
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export type FilterFeed = [FeedType.Filter, ...DynamicFilter[]]
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export type ListFeed = [FeedType.List, ...string[]]
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export type DVMFeed = [FeedType.DVM, ...DVMItem[]]
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export type Feed =
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RelayFeed |
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DifferenceFeed |
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IntersectionFeed |
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SymmetricDifferenceFeed |
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UnionFeed |
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FilterFeed |
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RelayFeed |
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ListFeed |
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DVMFeed
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export const relayFeed = (relays: string[], ...feeds: Feed[]) => [FeedType.Relay, relays, ...feeds] as Feed
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export const differenceFeed = (...feeds: Feed[]) => [FeedType.Difference, ...feeds] as Feed
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export const intersectionFeed = (...feeds: Feed[]) => [FeedType.Intersection, ...feeds] as Feed
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export const symmetricDifferenceFeed = (...feeds: Feed[]) => [FeedType.SymmetricDifference, ...feeds] as Feed
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export const unionFeed = (...feeds: Feed[]) => [FeedType.Union, ...feeds] as Feed
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export const filterFeed = (...filters: DynamicFilter[]) => [FeedType.Filter, ...filters] as Feed
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export const listFeed = (...addresses: string[]) => [FeedType.List, ...addresses] as Feed
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export const dvmFeed = (...requests: DVMItem[]) => [FeedType.DVM, ...requests] as Feed
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export const hasSubFeeds = ([type]: Feed) =>
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[
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FeedType.Union,
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FeedType.Intersection,
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FeedType.Difference,
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FeedType.SymmetricDifference,
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FeedType.Relay,
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].includes(type)
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export const getSubFeeds = ([type, ...feed]: Feed): Feed[] => {
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switch (type) {
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case FeedType.Relay:
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return feed.slice(1) as Feed[]
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case FeedType.Difference:
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case FeedType.Intersection:
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case FeedType.SymmetricDifference:
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case FeedType.Union:
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return feed as Feed[]
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default:
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return []
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}
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}
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export type RequestItem = {
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relays: string[]
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filters: Filter[]
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}
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export type RequestOpts<E> = RequestItem & {
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onEvent: (event: E) => void
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}
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export type DVMItem = {
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kind: number
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tags?: string[][]
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}
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export type DVMOpts<E> = DVMItem & {
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onEvent: (event: E) => void
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}
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export type FeedOptions<E> = {
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request: (opts: RequestOpts<E>) => Promise<void>
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requestDvm: (opts: DVMOpts<E>) => Promise<void>
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getPubkeysForScope: (scope: Scope) => string[]
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getPubkeysForWotRange: (minWot: number, maxWot: number) => string[]
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}
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