//
// Copyright 2021 New Vector Ltd
//
// 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 XCTest
import RiotSwiftUI

class ChangePasswordUITests: MockScreenTest {

    override class var screenType: MockScreenState.Type {
        return MockChangePasswordScreenState.self
    }

    override class func createTest() -> MockScreenTest {
        return ChangePasswordUITests(selector: #selector(verifyChangePasswordScreen))
    }

    func verifyChangePasswordScreen() throws {
        guard let screenState = screenState as? MockChangePasswordScreenState else { fatalError("no screen") }
        switch screenState {
        case .allEmpty:
            verifyAllEmpty()
        case .cannotSubmit:
            verifyCannotSubmit()
        case .canSubmit:
            verifyCanSubmit()
        case .canSubmitAndSignoutAllDevicesChecked:
            verifyCanSubmitAndSignoutAllDevicesChecked()
        }
    }
    
    func verifyAllEmpty() {
        XCTAssertTrue(app.staticTexts["titleLabel"].exists, "The title should be shown.")
        XCTAssertTrue(app.staticTexts["passwordRequirementsLabel"].exists, "The password requirements label should be shown.")
        
        let oldPasswordTextField = app.secureTextFields["oldPasswordTextField"]
        XCTAssertTrue(oldPasswordTextField.exists, "The text field should be shown.")
        XCTAssertEqual(oldPasswordTextField.label, "Old password", "The text field should be showing the placeholder before text is input.")

        let newPasswordTextField1 = app.secureTextFields["newPasswordTextField1"]
        XCTAssertTrue(newPasswordTextField1.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField1.label, "New password", "The text field should be showing the placeholder before text is input.")

        let newPasswordTextField2 = app.secureTextFields["newPasswordTextField2"]
        XCTAssertTrue(newPasswordTextField2.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField2.label, "Confirm password", "The text field should be showing the placeholder before text is input.")
        
        let submitButton = app.buttons["submitButton"]
        XCTAssertTrue(submitButton.exists, "The submit button should be shown.")
        XCTAssertFalse(submitButton.isEnabled, "The submit button should be disabled when not able to submit.")

        let signoutAllDevicesToggle = app.switches["signoutAllDevicesToggle"]
        XCTAssertTrue(signoutAllDevicesToggle.exists, "Sign out all devices toggle should exist")
        XCTAssertFalse(signoutAllDevicesToggle.isOn, "Sign out all devices should be unchecked")
    }
    
    func verifyCannotSubmit() {
        XCTAssertTrue(app.staticTexts["titleLabel"].exists, "The title should be shown.")
        XCTAssertTrue(app.staticTexts["passwordRequirementsLabel"].exists, "The password requirements label should be shown.")

        let oldPasswordTextField = app.secureTextFields["oldPasswordTextField"]
        XCTAssertTrue(oldPasswordTextField.exists, "The text field should be shown.")
        XCTAssertEqual(oldPasswordTextField.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField1 = app.secureTextFields["newPasswordTextField1"]
        XCTAssertTrue(newPasswordTextField1.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField1.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField2 = app.secureTextFields["newPasswordTextField2"]
        XCTAssertTrue(newPasswordTextField2.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField2.label, "Confirm password", "The text field should be showing the placeholder before text is input.")

        let submitButton = app.buttons["submitButton"]
        XCTAssertTrue(submitButton.exists, "The submit button should be shown.")
        XCTAssertFalse(submitButton.isEnabled, "The submit button should be disabled when not able to submit.")

        let signoutAllDevicesToggle = app.switches["signoutAllDevicesToggle"]
        XCTAssertTrue(signoutAllDevicesToggle.exists, "Sign out all devices toggle should exist")
        XCTAssertFalse(signoutAllDevicesToggle.isOn, "Sign out all devices should be unchecked")
    }
    
    func verifyCanSubmit() {
        XCTAssertTrue(app.staticTexts["titleLabel"].exists, "The title should be shown.")
        XCTAssertTrue(app.staticTexts["passwordRequirementsLabel"].exists, "The password requirements label should be shown.")

        let oldPasswordTextField = app.secureTextFields["oldPasswordTextField"]
        XCTAssertTrue(oldPasswordTextField.exists, "The text field should be shown.")
        XCTAssertEqual(oldPasswordTextField.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField1 = app.secureTextFields["newPasswordTextField1"]
        XCTAssertTrue(newPasswordTextField1.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField1.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField2 = app.secureTextFields["newPasswordTextField2"]
        XCTAssertTrue(newPasswordTextField2.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField2.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let submitButton = app.buttons["submitButton"]
        XCTAssertTrue(submitButton.exists, "The submit button should be shown.")
        XCTAssertTrue(submitButton.isEnabled, "The submit button should be enabled when able to submit.")

        let signoutAllDevicesToggle = app.switches["signoutAllDevicesToggle"]
        XCTAssertTrue(signoutAllDevicesToggle.exists, "Sign out all devices toggle should exist")
        XCTAssertFalse(signoutAllDevicesToggle.isOn, "Sign out all devices should be unchecked")
    }

    func verifyCanSubmitAndSignoutAllDevicesChecked() {
        XCTAssertTrue(app.staticTexts["titleLabel"].exists, "The title should be shown.")
        XCTAssertTrue(app.staticTexts["passwordRequirementsLabel"].exists, "The password requirements label should be shown.")

        let oldPasswordTextField = app.secureTextFields["oldPasswordTextField"]
        XCTAssertTrue(oldPasswordTextField.exists, "The text field should be shown.")
        XCTAssertEqual(oldPasswordTextField.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField1 = app.secureTextFields["newPasswordTextField1"]
        XCTAssertTrue(newPasswordTextField1.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField1.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let newPasswordTextField2 = app.secureTextFields["newPasswordTextField2"]
        XCTAssertTrue(newPasswordTextField2.exists, "The text field should be shown.")
        XCTAssertEqual(newPasswordTextField2.value as? String, "••••••••", "The text field should show the entered password secretly.")

        let submitButton = app.buttons["submitButton"]
        XCTAssertTrue(submitButton.exists, "The submit button should be shown.")
        XCTAssertTrue(submitButton.isEnabled, "The submit button should be enabled when able to submit.")

        let signoutAllDevicesToggle = app.switches["signoutAllDevicesToggle"]
        XCTAssertTrue(signoutAllDevicesToggle.exists, "Sign out all devices toggle should exist")
        XCTAssertTrue(signoutAllDevicesToggle.isOn, "Sign out all devices should be checked")
    }

}