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91 lines
2.5 KiB
Swift
91 lines
2.5 KiB
Swift
import Defaults
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import Siesta
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import SwiftUI
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final class SearchModel: ObservableObject {
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@Published var store = Store<[Video]>()
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@Published var api: InvidiousAPI!
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@Published var query = SearchQuery()
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@Published var queryText = ""
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@Published var querySuggestions = Store<[String]>()
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private var previousResource: Resource?
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private var resource: Resource!
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var isLoading: Bool {
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resource.isLoading
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}
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func loadSuggestions(_ query: String) {
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let resource = api.searchSuggestions(query: query)
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resource.addObserver(querySuggestions)
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resource.loadIfNeeded()
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if let request = resource.loadIfNeeded() {
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request.onSuccess { response in
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if let suggestions: [String] = response.typedContent() {
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self.querySuggestions = Store<[String]>(suggestions)
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}
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}
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} else {
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querySuggestions = Store<[String]>(querySuggestions.collection)
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}
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}
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func changeQuery(_ changeHandler: @escaping (SearchQuery) -> Void = { _ in }) {
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changeHandler(query)
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let newResource = api.search(query)
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guard newResource != previousResource else {
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return
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}
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previousResource?.removeObservers(ownedBy: store)
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previousResource = newResource
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resource = newResource
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resource.addObserver(store)
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loadResourceIfNeededAndReplaceStore()
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}
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func resetQuery(_ query: SearchQuery) {
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self.query = query
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let newResource = api.search(query)
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guard newResource != previousResource else {
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return
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}
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store.replace([])
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previousResource?.removeObservers(ownedBy: store)
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previousResource = newResource
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resource = newResource
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resource.addObserver(store)
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loadResourceIfNeededAndReplaceStore()
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}
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func loadResourceIfNeededAndReplaceStore() {
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let currentResource = resource!
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if let request = resource.loadIfNeeded() {
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request.onSuccess { response in
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if let videos: [Video] = response.typedContent() {
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self.replace(videos, for: currentResource)
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}
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}
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} else {
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replace(store.collection, for: currentResource)
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}
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}
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func replace(_ videos: [Video], for resource: Resource) {
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if self.resource == resource {
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store = Store<[Video]>(videos)
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}
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}
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}
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