1 files changed, 18 insertions, 0 deletions
diff --git a/Map/State/Store.swift b/Map/State/Store.swift
new file mode 100644
index 0000000..7860f33
--- /dev/null
+++ b/Map/State/Store.swift
@@ -0,0 +1,18 @@
+import Foundation
+
+final class Store<State, Action>: ObservableObject {
+  @Published private(set) var state: State
+
+  private let reducer: Reducer<State, Action>
+
+  init(initialState: State, reducer: @escaping Reducer<State, Action>) {
+    self.state = initialState
+    self.reducer = reducer
+  }
+
+  func send(_ action: Action) {
+    reducer(&state, action)
+  }
+}
+
+typealias Reducer<State, Action> = (inout State, Action) -> Void