54 lines
1.1 KiB
Swift
54 lines
1.1 KiB
Swift
//
|
|
// LikeCounter.swift
|
|
// damus
|
|
//
|
|
// Created by William Casarin on 2022-04-30.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
|
|
class EventCounter {
|
|
var counts: [String: Int] = [:]
|
|
var user_events: [String: Set<String>] = [:]
|
|
var our_events: [String: NostrEvent] = [:]
|
|
var our_pubkey: String
|
|
|
|
enum CountResult {
|
|
case already_counted
|
|
case success(Int)
|
|
}
|
|
|
|
init (our_pubkey: String) {
|
|
self.our_pubkey = our_pubkey
|
|
}
|
|
|
|
func add_event(_ ev: NostrEvent, target: String) -> CountResult {
|
|
let pubkey = ev.pubkey
|
|
|
|
if self.user_events[pubkey] == nil {
|
|
self.user_events[pubkey] = Set()
|
|
}
|
|
|
|
if user_events[pubkey]!.contains(target) {
|
|
// don't double count
|
|
return .already_counted
|
|
}
|
|
|
|
user_events[pubkey]!.insert(target)
|
|
|
|
if ev.pubkey == self.our_pubkey {
|
|
our_events[target] = ev
|
|
}
|
|
|
|
if counts[target] == nil {
|
|
counts[target] = 1
|
|
return .success(1)
|
|
}
|
|
|
|
counts[target]! += 1
|
|
|
|
return .success(counts[target]!)
|
|
}
|
|
}
|