79 lines
2.6 KiB
Swift
79 lines
2.6 KiB
Swift
//
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// FirebaseHistoryRepository.swift
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// LifeGameApp
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//
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// Created by Yusuke Hosonuma on 2020/08/16.
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//
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import FirebaseFirestore
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import FirebaseFirestoreSwift
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final class FirebaseHistoryRepository: ObservableObject {
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static let shared = FirebaseHistoryRepository() // 暫定
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@Published var items: [HistoryDocument] = []
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private let dispatchGroup = DispatchGroup()
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init() {
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// TODO: あとでアカウントに紐付けて管理するようにする
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Firestore.firestore()
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.collection("histories")
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.order(by: "createdAt", descending: true)
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.addSnapshotListener { (snapshot, error) in
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guard let snapshot = snapshot else { fatalError() }
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var documents: [HistoryDocument] = snapshot.documents.map {
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try! $0.data(as: HistoryDocument.self)!
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}
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for (index, document) in documents.enumerated() {
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self.dispatchGroup.enter() // ▶️
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document.boardReference.getDocument { (snapshot, error) in
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guard let snapshot = snapshot else { fatalError() }
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var newDocument = document
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newDocument.board = BoardDocument(snapshot: snapshot)
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documents[index] = newDocument
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self.dispatchGroup.leave() // ↩️
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}
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}
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self.dispatchGroup.notify(queue: .main) {
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self.items = documents
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}
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}
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}
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// TODO: refactor - Repository 以上のことをしているのでそのうち Service を抽出する
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func add(_ document: HistoryDocument) {
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Firestore.firestore()
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.collection("histories")
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.getDocuments { (snapshot, error) in
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guard let snapshot = snapshot else { fatalError() }
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let documents = snapshot.documents
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.map(HistoryDocument.init)
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if let exists = documents.first(where: { $0.boardReference == document.boardReference }) {
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self.delete(by: exists.id!)
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}
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_ = try! Firestore.firestore()
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.collection("histories")
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.addDocument(from: document)
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}
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}
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func delete(by id: String) {
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Firestore.firestore()
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.collection("histories")
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.document(id)
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.delete()
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}
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}
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