yattee/Model/CommentsModel.swift

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2.8 KiB
Swift
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import Defaults
import Foundation
import SwiftyJSON
final class CommentsModel: ObservableObject {
static let shared = CommentsModel()
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@Published var all = [Comment]()
@Published var nextPage: String?
@Published var firstPage = true
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@Published var loaded = false
@Published var disabled = false
@Published var replies = [Comment]()
@Published var repliesPageID: String?
@Published var repliesLoaded = false
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var player = PlayerModel.shared
var accounts = AccountsModel.shared
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var instance: Instance? {
accounts.current?.instance
}
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var nextPageAvailable: Bool {
!(nextPage?.isEmpty ?? true)
}
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func loadIfNeeded() {
guard !loaded else { return }
load()
}
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func load(page: String? = nil) {
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guard let video = player.currentVideo else { return }
guard firstPage || nextPageAvailable else { return }
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player
.playerAPI(video)?
.comments(video.videoID, page: page)?
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.load()
.onSuccess { [weak self] response in
guard let self else { return }
if let commentsPage: CommentsPage = response.typedContent() {
self.all += commentsPage.comments
self.nextPage = commentsPage.nextPage
self.disabled = commentsPage.disabled
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}
}
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.onFailure { [weak self] _ in
self?.disabled = true
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}
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.onCompletion { [weak self] _ in
self?.loaded = true
}
}
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func loadNextPageIfNeeded(current comment: Comment) {
let thresholdIndex = all.index(all.endIndex, offsetBy: -5)
if all.firstIndex(where: { $0 == comment }) == thresholdIndex {
loadNextPage()
}
}
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func loadNextPage() {
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guard nextPageAvailable else { return }
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load(page: nextPage)
}
func loadReplies(page: String) {
guard !player.currentVideo.isNil else {
return
}
if page == repliesPageID {
return
}
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replies = []
repliesPageID = page
repliesLoaded = false
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accounts.api.comments(player.currentVideo!.videoID, page: page)?
.load()
.onSuccess { [weak self] response in
if let page: CommentsPage = response.typedContent() {
self?.replies = page.comments
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self?.repliesLoaded = true
}
}
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.onFailure { [weak self] _ in
self?.repliesLoaded = true
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}
}
func reset() {
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all = []
disabled = false
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firstPage = true
nextPage = nil
loaded = false
replies = []
repliesLoaded = false
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}
}