import XCTest

class UserRepoRefactoredTests: XCTestCase {
    var userRepo = UserRepo()
    var email  = "user@gmail.com"
    var result = [User]()

    lazy var findAdminsByAction: Action = {
        return  Action() {
            self.createAdmin(name: "User Admin 1")
            self.createUser(name: "User")

            self.result = self.userRepo.findAdminsBy(email: self.email)
        }
    }()

    func testFindAdminsByMethodWhenHaveTwoAdminsAndOneCommunUserWithSameEmailAndPassTheEmailAsParameter() {
        let expectedCount   = 2
        let expectedNameOne = "User Admin 1"
        let expectedNameTwo = "User Admin 2"

        execute(action: findAdminsByAction) {
            self.createAdmin(name: expectedNameTwo)
        }

        XCTAssertEqual(expectedCount, result.count)

        XCTAssertEqual(expectedNameOne, result[1].name)
        XCTAssertEqual(expectedNameTwo, result[0].name)
    }

    func testFindAdminsByMethodWhenHaveOneAdmimAndOneCommunUserWithSameEmailAndPassTheEmailAsParameter() {
        let expectedCount = 1
        let expectedName  = "User Admin 1"

        execute(action: findAdminsByAction)

        XCTAssertEqual(expectedCount, result.count)
        XCTAssertEqual(expectedName, result[0].name)
    }

    func  testFindAdminsByMethodWhenHaveOneAdmimAndOneCommunUserWithSameEmailAndPassDifferentEmailAsParameter() {
        let expectedCount = 0

        execute(action: findAdminsByAction) {
            self.email = "none@gmail.com"
        }

        XCTAssertEqual(expectedCount, result.count)
    }

    // MARK: Functions to help to create User and Admin

    func createUser(name: String, email: String = "user@gmail.com") {
        let user = User(email: email, name: name)
        userRepo.save(user)
    }

    func createAdmin(name: String, email: String = "user@gmail.com") {
        let user = User(email: email, name: name, isAdmin: true)
        userRepo.save(user)
    }
}