iOS/Sources/Shared/API/Models/AppEntitiesModel.swift

98 lines
3.8 KiB
Swift

import Foundation
import GRDB
import HAKit
import PromiseKit
public protocol AppEntitiesModelProtocol {
func updateModel(_ entities: Set<HAEntity>, server: Server)
}
public final class AppEntitiesModel: AppEntitiesModelProtocol {
private var lastDatabaseUpdate: Date?
private var lastEntitiesCount = 0
private let domainsAppUse: [String] = [
Domain.scene,
Domain.script,
Domain.light,
Domain.switch,
Domain.sensor,
Domain.cover,
].map(\.rawValue)
public func updateModel(_ entities: Set<HAEntity>, server: Server) {
// Only update database after a minute or if the entities count changed
// First check for time to avoid unecessary filtering to check count
if !checkLastDatabaseUpdateLessThanMinuteAgo() {
let appRelatedEntities = filterDomains(entities)
Current.Log
.verbose(
"Updating App Entities for \(server.info.name) checkLastDatabaseUpdateLessThanMinuteAgo false, lastDatabaseUpdate \(String(describing: lastDatabaseUpdate)) "
)
updateLastUpdate(entitiesCount: appRelatedEntities.count)
handle(appRelatedEntities: appRelatedEntities, server: server)
} else {
let appRelatedEntities = filterDomains(entities)
if lastEntitiesCount != appRelatedEntities.count {
Current.Log
.verbose(
"Updating App Entities for \(server.info.name) entities count diff, count: last \(lastEntitiesCount), new \(appRelatedEntities.count)"
)
updateLastUpdate(entitiesCount: appRelatedEntities.count)
handle(appRelatedEntities: appRelatedEntities, server: server)
}
}
}
private func updateLastUpdate(entitiesCount: Int) {
lastEntitiesCount = entitiesCount
lastDatabaseUpdate = Date()
}
private func filterDomains(_ entities: Set<HAEntity>) -> Set<HAEntity> {
entities.filter { domainsAppUse.contains($0.domain) }
}
// Avoid updating database too often
private func checkLastDatabaseUpdateLessThanMinuteAgo() -> Bool {
if let lastDatabaseUpdate {
return Date().timeIntervalSince(lastDatabaseUpdate) < 60
} else {
return false
}
}
private func handle(appRelatedEntities: Set<HAEntity>, server: Server) {
let appEntities = appRelatedEntities.map({ HAAppEntity(
id: ServerEntity.uniqueId(serverId: server.identifier.rawValue, entityId: $0.entityId),
entityId: $0.entityId,
serverId: server.identifier.rawValue,
domain: $0.domain,
name: $0.attributes.friendlyName ?? $0.entityId,
icon: $0.attributes.icon
) }).sorted(by: { $0.id < $1.id })
do {
let cachedEntities = try Current.database.read { db in
try HAAppEntity
.filter(Column(DatabaseTables.AppEntity.serverId.rawValue) == server.identifier.rawValue)
.orderByPrimaryKey()
.fetchAll(db)
}
if appEntities != cachedEntities {
Current.Log
.verbose(
"Updating App Entities for \(server.info.name), cached entities were different than new entities"
)
try Current.database.write { db in
try HAAppEntity.deleteAll(db, ids: cachedEntities.map(\.id))
for entity in appEntities {
try entity.insert(db)
}
}
}
} catch {
Current.Log.error("Failed to get cache for App Entities, error: \(error.localizedDescription)")
}
}
}