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| 1 | +// |
| 2 | +// CDSavedSearch.swift |
| 3 | +// KlockWork |
| 4 | +// |
| 5 | +// Created by Ryan Priebe on 2024-10-15. |
| 6 | +// Copyright © 2024 YegCollective. All rights reserved. |
| 7 | +// |
| 8 | + |
| 9 | +import SwiftUI |
| 10 | +import KWCore |
| 11 | +import CoreData |
| 12 | + |
| 13 | +public class CDSavedSearch: ObservableObject { |
| 14 | + /// Context for updating CD objects |
| 15 | + public var moc: NSManagedObjectContext? |
| 16 | + |
| 17 | + /// Thread lock |
| 18 | + private let lock = NSLock() |
| 19 | + |
| 20 | + /// Create new CDSavedSearch instance |
| 21 | + /// - Parameter moc: NSManagedObjectContext |
| 22 | + public init(moc: NSManagedObjectContext?) { |
| 23 | + self.moc = moc |
| 24 | + } |
| 25 | + |
| 26 | + /// Find all saved searches |
| 27 | + /// - Returns: [SavedSearch] |
| 28 | + public func all() -> [SavedSearch] { |
| 29 | + let predicate = NSPredicate( |
| 30 | + format: "created < %@", |
| 31 | + Date() as CVarArg |
| 32 | + ) |
| 33 | + |
| 34 | + return self.query(predicate) |
| 35 | + } |
| 36 | + |
| 37 | + /// Find SavedSearch objects by term |
| 38 | + /// - Parameter term: String |
| 39 | + /// - Returns: Optional(SavedSearch |
| 40 | + public func find(by term: String) -> SavedSearch? { |
| 41 | + let predicate = NSPredicate( |
| 42 | + format: "term == %@", |
| 43 | + term |
| 44 | + ) |
| 45 | + |
| 46 | + let results = self.query(predicate) |
| 47 | + |
| 48 | + if let result = results.first { |
| 49 | + return result |
| 50 | + } |
| 51 | + |
| 52 | + return nil |
| 53 | + } |
| 54 | + |
| 55 | + /// Destroy a saved search term |
| 56 | + /// - Parameter term: SavedSearch |
| 57 | + /// - Returns: Void |
| 58 | + public func destroy(_ term: String) -> Void { |
| 59 | + if let entity = self.query(NSPredicate(format: "term == %@", term)).first { |
| 60 | + self.moc!.delete(entity) |
| 61 | + |
| 62 | + PersistenceController.shared.save() |
| 63 | + } |
| 64 | + } |
| 65 | + |
| 66 | + /// Create and return a new saved search term |
| 67 | + /// - Parameters: |
| 68 | + /// - term: String |
| 69 | + /// - created: Date |
| 70 | + /// - saveByDefault: Bool(true) |
| 71 | + /// - Returns: Void |
| 72 | + public func createAndReturn(term: String, created: Date) -> SavedSearch { |
| 73 | + return self.make(term: term, created: created) |
| 74 | + } |
| 75 | + |
| 76 | + /// Create a new saved search term |
| 77 | + /// - Parameters: |
| 78 | + /// - term: String |
| 79 | + /// - created: Date |
| 80 | + /// - saveByDefault: Bool(true) |
| 81 | + /// - Returns: Void |
| 82 | + public func create(term: String, created: Date) -> Void { |
| 83 | + let _ = self.make(term: term, created: created) |
| 84 | + } |
| 85 | + |
| 86 | + /// Create a new saved search term |
| 87 | + /// - Parameters: |
| 88 | + /// - term: String |
| 89 | + /// - created: Date |
| 90 | + /// - saveByDefault: Bool(true) |
| 91 | + /// - Returns: SavedSearch |
| 92 | + private func make(term: String, created: Date, saveByDefault: Bool = true) -> SavedSearch { |
| 93 | + let savedSearch = SavedSearch(context: self.moc!) |
| 94 | + savedSearch.term = term |
| 95 | + savedSearch.created = created |
| 96 | + |
| 97 | + if saveByDefault { |
| 98 | + PersistenceController.shared.save() |
| 99 | + } |
| 100 | + |
| 101 | + return savedSearch |
| 102 | + } |
| 103 | + |
| 104 | + /// Query companies |
| 105 | + /// - Parameter predicate: Query predicate |
| 106 | + /// - Parameter sort: [NSSortDescriptor] |
| 107 | + /// - Returns: Array<SavedSearch> |
| 108 | + private func query(_ predicate: NSPredicate? = nil, _ sort: [NSSortDescriptor] = [NSSortDescriptor(keyPath: \SavedSearch.term?, ascending: true)]) -> [SavedSearch] { |
| 109 | + lock.lock() |
| 110 | + |
| 111 | + var results: [SavedSearch] = [] |
| 112 | + let fetch: NSFetchRequest<SavedSearch> = SavedSearch.fetchRequest() |
| 113 | + fetch.sortDescriptors = sort |
| 114 | + fetch.returnsDistinctResults = true |
| 115 | + if predicate != nil { |
| 116 | + fetch.predicate = predicate |
| 117 | + } |
| 118 | + |
| 119 | + do { |
| 120 | + results = try moc!.fetch(fetch) |
| 121 | + } catch { |
| 122 | + if predicate != nil { |
| 123 | + print("[error] CDSavedSearch.query Unable to find records for predicate \(predicate!.predicateFormat)") |
| 124 | + } else { |
| 125 | + print("[error] CDSavedSearch.query Unable to find records for query") |
| 126 | + } |
| 127 | + |
| 128 | + print(error) |
| 129 | + } |
| 130 | + |
| 131 | + lock.unlock() |
| 132 | + |
| 133 | + return results |
| 134 | + } |
| 135 | + |
| 136 | + /// Count companies |
| 137 | + /// - Parameter predicate: Query predicate |
| 138 | + /// - Parameter sort: [NSSortDescriptor] |
| 139 | + /// - Returns: Int |
| 140 | + private func count(_ predicate: NSPredicate, sort: [NSSortDescriptor] = [NSSortDescriptor(keyPath: \SavedSearch.term?, ascending: true)]) -> Int { |
| 141 | + lock.lock() |
| 142 | + |
| 143 | + var count = 0 |
| 144 | + let fetch: NSFetchRequest<SavedSearch> = SavedSearch.fetchRequest() |
| 145 | + fetch.sortDescriptors = sort |
| 146 | + fetch.predicate = predicate |
| 147 | + fetch.returnsDistinctResults = true |
| 148 | + |
| 149 | + do { |
| 150 | + count = try moc!.fetch(fetch).count |
| 151 | + } catch { |
| 152 | + print("[error] CDSavedSearch.query Unable to find records for predicate \(predicate.predicateFormat)") |
| 153 | + } |
| 154 | + |
| 155 | + lock.unlock() |
| 156 | + |
| 157 | + return count |
| 158 | + } |
| 159 | +} |
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