#import <XCTest/XCTest.h>
#import <OCMock/OCMock.h>
#import "RNNStackPresenter.h"
#import "UINavigationController+RNNOptions.h"
#import "RNNStackController.h"
#import "UIImage+Utils.h"

@interface RNNStackPresenterTest : XCTestCase

@property (nonatomic, strong) RNNStackPresenter *uut;
@property (nonatomic, strong) RNNNavigationOptions *options;
@property (nonatomic, strong) RNNStackController* boundViewController;

@end

@implementation RNNStackPresenterTest

- (void)setUp {
	[super setUp];
	self.uut = [[RNNStackPresenter alloc] init];
	RNNStackController* stackController = [[RNNStackController alloc] initWithLayoutInfo:nil creator:nil options:[[RNNNavigationOptions alloc] initEmptyOptions] defaultOptions:nil presenter:self.uut eventEmitter:nil childViewControllers:@[[UIViewController new], [UIViewController new]]];
	self.boundViewController = [OCMockObject partialMockForObject:stackController];
    [self.uut bindViewController:self.boundViewController];
	self.options = [[RNNNavigationOptions alloc] initEmptyOptions];
}

- (void)testApplyOptions_shouldSetBackButtonColor_withDefaultValues {
	[[(id)_boundViewController expect] setBackButtonColor:nil];
	[self.uut applyOptions:self.options];
	[(id)_boundViewController verify];
}

- (void)testApplyOptions_shouldSetBackButtonColor_withColor {
	self.options.topBar.backButton.color = [[Color alloc] initWithValue:[UIColor redColor]];
	[[(id)_boundViewController expect] setBackButtonColor:[UIColor redColor]];
	[self.uut applyOptions:self.options];
	[(id)_boundViewController verify];
}

- (void)testApplyOptionsBeforePoppingShouldSetTopBarBackgroundForPoppingViewController {
	_options.topBar.background.color = [[Color alloc] initWithValue:[UIColor redColor]];
	
	[self.uut applyOptionsBeforePopping:self.options];
	XCTAssertTrue([_boundViewController.navigationBar.standardAppearance.backgroundColor isEqual:[UIColor redColor]]);
}

- (void)testApplyOptionsBeforePoppingShouldSetLargeTitleForPoppingViewController {
	_options.topBar.largeTitle.visible = [[Bool alloc] initWithBOOL:YES];
	
	[self.uut applyOptionsBeforePopping:self.options];
	XCTAssertTrue([[_boundViewController navigationBar] prefersLargeTitles]);
}

- (void)testApplyOptionsBeforePoppingShouldSetDefaultLargeTitleFalseForPoppingViewController {
	_options.topBar.largeTitle.visible = nil;
	[self.uut applyOptionsBeforePopping:self.options];
	XCTAssertFalse([[_boundViewController navigationBar] prefersLargeTitles]);
}

- (void)testApplyOptions_shouldSetBackButtonOnBoundViewController_withTitle {
	Text* title = [[Text alloc] initWithValue:@"Title"];
	self.options.topBar.backButton.title = title;
	[self.uut applyOptions:self.options];
	XCTAssertTrue([self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.title isEqual:@"Title"]);
}

- (void)testApplyOptions_shouldSetBackButtonOnBoundViewController_withHideTitle {
	Text* title = [[Text alloc] initWithValue:@"Title"];
	self.options.topBar.backButton.title = title;
	self.options.topBar.backButton.showTitle = [[Bool alloc] initWithValue:@(0)];
	[self.uut applyOptions:self.options];
	XCTAssertNil(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.title);
}

- (void)testApplyOptions_shouldSetBackButtonOnBoundViewController_withDefaultValues {
	[self.uut applyOptions:self.options];
	XCTAssertTrue(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.title == nil);
}

- (void)testSetBackButtonIcon_withColor_shouldSetColor {
	Color* color = [[Color alloc] initWithValue:UIColor.redColor];
	self.options.topBar.backButton.color = color;
	[self.uut applyOptions:self.options];
	XCTAssertEqual(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.tintColor, UIColor.redColor);
}

- (void)testSetBackButtonIcon_withColor_shouldSetTitle {
	Color* color = [[Color alloc] initWithValue:UIColor.redColor];
	Text* title = [[Text alloc] initWithValue:@"Title"];
	self.options.topBar.backButton.color = color;
	self.options.topBar.backButton.title = title;
	[self.uut applyOptions:self.options];
	XCTAssertEqual(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.tintColor, UIColor.redColor);
	XCTAssertEqual(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.title, @"Title");
}

- (void)testSetBackButtonIcon_withColor_shouldSetIcon {
	Color* color = [[Color alloc] initWithValue:UIColor.redColor];
	UIImage *image = [UIImage emptyImage];
	
	Image* icon = [[Image alloc] initWithValue:image];
	self.options.topBar.backButton.color = color;
	self.options.topBar.backButton.icon = icon;
	[self.uut applyOptions:self.options];
	XCTAssertEqual(self.boundViewController.viewControllers.firstObject.navigationItem.backBarButtonItem.tintColor, UIColor.redColor);
	XCTAssertTrue([self.boundViewController.navigationBar.standardAppearance.backIndicatorImage isEqual:image]);
}

@end