/**
 Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
 
 The examples provided by Facebook are for non-commercial testing and evaluation
 purposes only. Facebook reserves all rights not expressly granted.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import XCTest

final class MixedDataViewControllerUITests: UITestCase {

    override func setUp() {
        super.setUp()
        enterMixedDataDetailScreen()
    }

    func test_whenSelectingAll_thatAllSectionTypesArePresent() {
        mixedDataNavigationBarElement().buttons["All"].tap()

        XCTAssertTrue(expandableSectionElement().exists)
        XCTAssertTrue(userSectionElement().exists)
        XCTAssertTrue(gridSectionElement().exists)
    }

    func test_whenSelectingColors_thatOnlyGridSectionsArePresent() {
        mixedDataNavigationBarElement().buttons["Colors"].tap()

        XCTAssertFalse(expandableSectionElement().exists)
        XCTAssertFalse(userSectionElement().exists)
        XCTAssertTrue(gridSectionElement().exists)
    }

    func test_whenSelectingText_thatOnlyExpandableSectionsArePresent() {
        mixedDataNavigationBarElement().buttons["Text"].tap()

        XCTAssertTrue(expandableSectionElement().exists)
        XCTAssertFalse(userSectionElement().exists)
        XCTAssertFalse(gridSectionElement().exists)
    }

    func test_whenSelectingUsers_thatOnlyUserSectionsArePresent() {
        mixedDataNavigationBarElement().buttons["Users"].tap()

        XCTAssertFalse(expandableSectionElement().exists)
        XCTAssertTrue(userSectionElement().exists)
        XCTAssertFalse(gridSectionElement().exists)
    }

    func test_whenExpandingExpandableSection_thatHeightIsIncreased() {
        mixedDataNavigationBarElement().buttons["Text"].tap()

        let expandableSection = expandableSectionElement()
        let collapsedFrame = expandableSection.frame

        // Expand
        expandableSection.tap()
        let expandedFrame = expandableSection.frame

        XCTAssertTrue(expandedFrame.size.height > collapsedFrame.size.height)
    }

    func test_whenCollapsingExpandableSection_thatHeightIsDecreased() {
        mixedDataNavigationBarElement().buttons["Text"].tap()

        let expandableSection = expandableSectionElement()

        // Expand
        expandableSection.tap()
        let expandedFrame = expandableSection.frame

        // Collapse
        expandableSection.tap()
        let collapsedFrame = expandableSection.frame

        XCTAssertTrue(collapsedFrame.size.height < expandedFrame.size.height)
    }

    private func expandableSectionElement() -> XCUIElement {
        return XCUIApplication().collectionViews.cells.staticTexts["Maecenas faucibus mollis interdum. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit."]
    }

    private func userSectionElement() -> XCUIElement {
        return XCUIApplication().collectionViews.cells.staticTexts["@ryanolsonk"]
    }

    private func gridSectionElement() -> XCUIElement {
        return XCUIApplication().collectionViews.cells.staticTexts["1"]
    }

    private func mixedDataNavigationBarElement() -> XCUIElement {
        return XCUIApplication().navigationBars["Mixed Data"]
    }

    private func enterMixedDataDetailScreen() {
        XCUIApplication().collectionViews.cells.staticTexts["Mixed Data"].tap()
    }

}