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import Foundation
struct TicketListFilterState: Codable, Hashable, Sendable {
var status: TicketFilter
var labelIDs: [Int]
init(status: TicketFilter = .open, labelIDs: [Int] = []) {
self.status = status
self.labelIDs = Array(Set(labelIDs)).sorted()
}
var isDefault: Bool {
status == .open && labelIDs.isEmpty
}
}
struct SavedTicketFilter: Codable, Hashable, Identifiable, Sendable {
let id: UUID
let name: String
let state: TicketListFilterState
let createdAt: Date
}
enum TicketSavedFilterStore {
static func loadCurrentState(
for trackerID: String,
defaults: UserDefaults = .standard
) -> TicketListFilterState {
let allStates = loadStates(defaults: defaults)
if let savedState = allStates[trackerID] {
return savedState
}
if let legacyRawValue = defaults.string(forKey: legacyStatusKey(for: trackerID)),
let status = TicketFilter(rawValue: legacyRawValue) {
return TicketListFilterState(status: status)
}
return TicketListFilterState()
}
static func saveCurrentState(
_ state: TicketListFilterState,
for trackerID: String,
defaults: UserDefaults = .standard
) {
var allStates = loadStates(defaults: defaults)
allStates[trackerID] = state
save(allStates, key: AppStorageKeys.ticketFilterState, defaults: defaults)
defaults.removeObject(forKey: legacyStatusKey(for: trackerID))
}
static func loadSavedFilters(
for trackerID: String,
defaults: UserDefaults = .standard
) -> [SavedTicketFilter] {
let allFilters: [String: [SavedTicketFilter]] = loadDictionary(
key: AppStorageKeys.ticketSavedFilters,
defaults: defaults
)
return allFilters[trackerID] ?? []
}
static func saveFilter(
named name: String,
state: TicketListFilterState,
for trackerID: String,
defaults: UserDefaults = .standard,
now: Date = .now
) -> SavedTicketFilter? {
let trimmedName = name.trimmingCharacters(in: .whitespacesAndNewlines)
guard !trimmedName.isEmpty else { return nil }
var allFilters: [String: [SavedTicketFilter]] = loadDictionary(
key: AppStorageKeys.ticketSavedFilters,
defaults: defaults
)
var trackerFilters = allFilters[trackerID] ?? []
trackerFilters.removeAll {
$0.name.compare(trimmedName, options: [.caseInsensitive, .diacriticInsensitive]) == .orderedSame
}
let savedFilter = SavedTicketFilter(
id: UUID(),
name: trimmedName,
state: state,
createdAt: now
)
trackerFilters.insert(savedFilter, at: 0)
allFilters[trackerID] = trackerFilters
save(allFilters, key: AppStorageKeys.ticketSavedFilters, defaults: defaults)
return savedFilter
}
static func deleteFilter(
id: SavedTicketFilter.ID,
for trackerID: String,
defaults: UserDefaults = .standard
) {
var allFilters: [String: [SavedTicketFilter]] = loadDictionary(
key: AppStorageKeys.ticketSavedFilters,
defaults: defaults
)
var trackerFilters = allFilters[trackerID] ?? []
trackerFilters.removeAll { $0.id == id }
allFilters[trackerID] = trackerFilters
save(allFilters, key: AppStorageKeys.ticketSavedFilters, defaults: defaults)
}
private static func loadStates(defaults: UserDefaults) -> [String: TicketListFilterState] {
loadDictionary(key: AppStorageKeys.ticketFilterState, defaults: defaults)
}
private static func loadDictionary<T: Decodable>(
key: String,
defaults: UserDefaults
) -> [String: T] {
guard let data = defaults.data(forKey: key) else {
return [:]
}
do {
return try JSONDecoder().decode([String: T].self, from: data)
} catch {
defaults.removeObject(forKey: key)
return [:]
}
}
private static func save<T: Encodable>(
_ value: [String: T],
key: String,
defaults: UserDefaults
) {
guard let data = try? JSONEncoder().encode(value) else { return }
defaults.set(data, forKey: key)
}
private static func legacyStatusKey(for trackerID: String) -> String {
"ticketFilter_\(trackerID)"
}
}
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