Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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iphone/Maps/Core/Search/SearchIndex.swift

@@ -0,0 +1,87 @@
+@objc
+final class SearchIndex: NSObject {
+  fileprivate struct Item {
+    let type: SearchItemType
+    let containerIndex: Int
+  }
+
+  fileprivate struct PositionItem {
+    let item: Item
+    var position: Int
+  }
+
+  private var positionItems: [PositionItem] = []
+  private var items: [Item] = []
+
+  @objc var count: Int {
+    return items.count
+  }
+
+  @objc init(suggestionsCount: Int, resultsCount: Int) {
+    for index in 0 ..< resultsCount {
+      let type: SearchItemType = index < suggestionsCount ? .suggestion : .regular
+      let item = Item(type: type, containerIndex: index)
+      positionItems.append(PositionItem(item: item, position: index))
+    }
+    super.init()
+  }
+
+  func addItem(type: SearchItemType, prefferedPosition: Int, containerIndex: Int) {
+    assert(type != .suggestion && type != .regular)
+    let item = Item(type: type, containerIndex: containerIndex)
+    positionItems.append(PositionItem(item: item, position: prefferedPosition))
+  }
+
+  @objc func build() {
+    positionItems.sort(by: >)
+    var itemsDict: [Int: Item] = [:]
+    positionItems.forEach { item in
+      var position = item.position
+      while itemsDict[position] != nil {
+        position += 1
+      }
+      itemsDict[position] = item.item
+    }
+
+    items.removeAll()
+    let keys = itemsDict.keys.sorted()
+    for index in 0 ..< keys.count {
+      let key = keys[index]
+      if index == key {
+        items.append(itemsDict[key]!)
+      }
+    }
+  }
+
+  @objc func resultType(row: Int) -> SearchItemType {
+    return items[row].type
+  }
+
+  @objc func resultContainerIndex(row: Int) -> Int {
+    return items[row].containerIndex
+  }
+}
+
+extension SearchIndex.PositionItem: Equatable {
+  static func ==(lhs: SearchIndex.PositionItem, rhs: SearchIndex.PositionItem) -> Bool {
+    let lhsCache = lhs.item
+    let rhsCache = rhs.item
+    return lhsCache.type == rhsCache.type &&
+      lhs.position == rhs.position &&
+      lhsCache.containerIndex == rhsCache.containerIndex
+  }
+}
+
+extension SearchIndex.PositionItem: Comparable {
+  static func <(lhs: SearchIndex.PositionItem, rhs: SearchIndex.PositionItem) -> Bool {
+    let lhsCache = lhs.item
+    let rhsCache = rhs.item
+    guard lhsCache.type == rhsCache.type else {
+      return lhsCache.type.rawValue < rhsCache.type.rawValue
+    }
+    guard lhs.position == rhs.position else {
+      return lhs.position > rhs.position
+    }
+    return lhsCache.containerIndex < rhsCache.containerIndex
+  }
+}