/*
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import FirebaseCore
import FirebaseRemoteConfig
import FirebaseRemoteConfigSwift
import XCTest

let ConfigKeyForThisTestOnly = "PropertyWrapperDefaultConfigsTestsKey"

#if compiler(>=5.5.2) && canImport(_Concurrency)
  @available(iOS 14.0, macOS 11.0, macCatalyst 14.0, tvOS 14.0, watchOS 7.0, *)
  class PropertyWrapperDefaultConfigsTests: XCTestCase {
    struct Recipe: Decodable, Encodable {
      var recipeName: String
      var ingredients: [String]
      var cookTime: Int
    }

    static let defaultRecipe = Recipe(
      recipeName: "muffin", ingredients: ["flour", "sugar"], cookTime: 45
    )

    // MARK: - Test Remote Config default values with property wrapper

    struct DefaultsValuesTester {
      @RemoteConfigProperty(
        key: ConfigKeyForThisTestOnly,
        fallback: Recipe(recipeName: "test", ingredients: [], cookTime: 0)
      )
      var dictValue: Recipe
    }

    override class func setUp() {
      if FirebaseApp.app() == nil {
        let options = FirebaseOptions(googleAppID: "1:123:ios:123abc",
                                      gcmSenderID: "correct_gcm_sender_id")
        options.apiKey = "A23456789012345678901234567890123456789"
        options.projectID = "Fake Project"
        FirebaseApp.configure(options: options)
      }
    }

    func testDefaultValues() async throws {
      try? RemoteConfig.remoteConfig().setDefaults(
        from: [ConfigKeyForThisTestOnly: PropertyWrapperDefaultConfigsTests.defaultRecipe]
      )

      let tester = await DefaultsValuesTester()
      let dictValue = await tester.dictValue

      XCTAssertEqual(dictValue.recipeName, "muffin")
      XCTAssertEqual(dictValue.cookTime, 45)
      XCTAssertEqual(dictValue.ingredients, ["flour", "sugar"])
    }
  }
#endif
