import * as TKUnit from "../../TKUnit";
import * as styleScope from "ui/styling/style-scope";
import * as keyframeAnimation from "ui/animation/keyframe-animation";
import * as enums from "ui/enums";
import * as helper from "../../ui/helper";
import * as stackModule from "ui/layouts/stack-layout";
import * as labelModule from "ui/label";
import * as color from "color";

import {SelectorCore} from "ui/styling/css-selector";
import { unsetValue } from "ui/core/view";

//import * as styling from "ui/styling";

function createAnimationFromCSS(css: string, name: string): keyframeAnimation.KeyframeAnimationInfo {
    let scope = new styleScope.StyleScope();
    scope.css = css;
    scope.ensureSelectors();
    let selector = findSelectorInScope(scope, name);
    if (selector !== undefined) {
        let animation = scope.getAnimations(selector.ruleset)[0];
        return animation;
    }
    return undefined;
}

function findSelectorInScope(scope: styleScope.StyleScope, cssClass: string): SelectorCore {
    let selectors = scope.query({cssClasses: new Set([cssClass])});
    return selectors[0];
}

export function test_ReadAnimationProperties() {
    let css = ".test { " +
        "animation-name: first; " +
        "animation-duration: 4s; " +
        "animation-timing-function: ease-in; " +
        "animation-delay: 1.5; " +
        "animation-iteration-count: 10; " +
        "animation-direction: reverse; " +
        "animation-fill-mode: forwards; " +
        " }";
    let animation = createAnimationFromCSS(css, "test");
    TKUnit.assertEqual(animation.name, "first");
    TKUnit.assertEqual(animation.duration, 4000);
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.easeIn);
    TKUnit.assertEqual(animation.delay, 1500);
    TKUnit.assertEqual(animation.iterations, 10);
    TKUnit.assertTrue(animation.isForwards);
    TKUnit.assertTrue(animation.isReverse);
}

export function test_ReadTheAnimationProperty() {
    let animation = createAnimationFromCSS(".test { animation: second 0.2s ease-out 1 2 }", "test");
    TKUnit.assertEqual(animation.name, "second");
    TKUnit.assertEqual(animation.duration, 200);
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.easeOut);
    TKUnit.assertEqual(animation.delay, 1000);
    TKUnit.assertEqual(animation.iterations, 2);
}

export function test_ReadAnimationCurve() {
    let animation = createAnimationFromCSS(".test { animation-timing-function: ease-in; }", "test");
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.easeIn);
    animation = createAnimationFromCSS(".test { animation-timing-function: ease-out; }", "test");
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.easeOut);
    animation = createAnimationFromCSS(".test { animation-timing-function: linear; }", "test");
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.linear);
    animation = createAnimationFromCSS(".test { animation-timing-function: ease-in-out; }", "test");
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.easeInOut);
    animation = createAnimationFromCSS(".test { animation-timing-function: spring; }", "test");
    TKUnit.assertEqual(animation.curve, enums.AnimationCurve.spring);
    animation = createAnimationFromCSS(".test { animation-timing-function: cubic-bezier(0.1, 1.0, 0.5, 0.5); }", "test");
    let curve = animation.curve;
    TKUnit.assert(curve.x1 === 0.1 && curve.y1 === 1.0 && curve.x2 === 0.5 && curve.y2 === 0.5);
}

export function test_ReadIterations() {
    let animation = createAnimationFromCSS(".test { animation-iteration-count: 5; }", "test");
    TKUnit.assertEqual(animation.iterations, 5);
    animation = createAnimationFromCSS(".test { animation-iteration-count: infinite; }", "test");
    TKUnit.assertEqual(animation.iterations, Number.MAX_VALUE);
}

export function test_ReadFillMode() {
    let animation = createAnimationFromCSS(".test { animation-iteration-count: 5; }", "test");
    TKUnit.assertFalse(animation.isForwards);
    animation = createAnimationFromCSS(".test { animation-fill-mode: forwards; }", "test");
    TKUnit.assertTrue(animation.isForwards);
    animation = createAnimationFromCSS(".test { animation-fill-mode: backwards; }", "test");
    TKUnit.assertFalse(animation.isForwards);
}

export function test_ReadDirection() {
    let animation = createAnimationFromCSS(".test { animation-iteration-count: 5; }", "test");
    TKUnit.assertFalse(animation.isReverse);
    animation = createAnimationFromCSS(".test { animation-direction: reverse; }", "test");
    TKUnit.assertTrue(animation.isReverse);
    animation = createAnimationFromCSS(".test { animation-direction: normal; }", "test");
    TKUnit.assertFalse(animation.isReverse);
}

export function test_ReadKeyframe() {
    let scope = new styleScope.StyleScope();
    scope.css = ".test { animation-name: test; } @keyframes test { from { background-color: red; } to { background-color: blue; } }";
    scope.ensureSelectors();
    let selector = findSelectorInScope(scope, "test");
    TKUnit.assert(selector !== undefined, "CSS selector was not created!");
    let animation = scope.getAnimations(selector.ruleset)[0];
    TKUnit.assertEqual(animation.name, "test", "Wrong animation name!");
    TKUnit.assertEqual(animation.keyframes.length, 2, "Keyframes not parsed correctly!");
    TKUnit.assertEqual(animation.keyframes[0].duration, 0, "First keyframe duration should be 0");
    TKUnit.assertEqual(animation.keyframes[1].duration, 1, "Second keyframe duration should be 1");
    TKUnit.assertEqual(animation.keyframes[0].declarations.length, 1, "Keyframe declarations are not correct");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "backgroundColor", "Keyframe declarations are not correct");
}

export function test_ReadScale() {
    let animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: scaleX(5),scaleY(10); } }", "test");
    let scale = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "scale");
    TKUnit.assert(scale.x === 5 && scale.y === 10);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: scale(-5, 12.3pt); } }", "test");
    scale = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "scale");
    TKUnit.assert(scale.x === -5 && scale.y === 12.3);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: scaleY(10); } }", "test");
    scale = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "scale");
    TKUnit.assert(scale.x === 1 && scale.y === 10);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: scale3d(10, 20, 30); } }", "test");
    scale = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "scale");
    TKUnit.assert(scale.x === 10 && scale.y === 20);
}

export function test_ReadTranslate() {
    let animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: translateX(5),translateY(10); } }", "test");
    let translate = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "translate");
    TKUnit.assert(translate.x === 5 && translate.y === 10);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: translate(-5, 12.3pt); } }", "test");
    translate = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "translate");
    TKUnit.assert(translate.x === -5 && translate.y === 12.3);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: translateX(10); } }", "test");
    translate = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "translate");
    TKUnit.assert(translate.x === 10 && translate.y === 0);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: translate3d(10, 20, 30); } }", "test");
    translate = animation.keyframes[0].declarations[0].value;
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "translate");
    TKUnit.assert(translate.x === 10 && translate.y === 20);
}

export function test_ReadRotate() {
    let animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: rotate(5); } }", "test");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "rotate");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].value, 5);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: rotate(45deg); } }", "test");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "rotate");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].value, 45);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: rotate(0.7853981634rad); } }", "test");
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].property, "rotate");
    TKUnit.assertTrue(animation.keyframes[0].declarations[0].value - 45 < 0.1);
}

export function test_ReadTransform() {
    let css = ".test { animation-name: test; } @keyframes test { to { transform: rotate(10),scaleX(5),translate(2,4); } }";
    let animation = createAnimationFromCSS(css, "test");
    let rotate = animation.keyframes[0].declarations[0].value;
    let scale = animation.keyframes[0].declarations[1].value;
    let translate = animation.keyframes[0].declarations[2].value;
    TKUnit.assertEqual(rotate, 10);
    TKUnit.assert(scale.x === 5 && scale.y === 1);
    TKUnit.assert(translate.x === 2 && translate.y === 4);
    animation = createAnimationFromCSS(".test { animation-name: test; } @keyframes test { to { transform: none; } }", "test");
    rotate = animation.keyframes[0].declarations[0].value;
    scale = animation.keyframes[0].declarations[1].value;
    translate = animation.keyframes[0].declarations[2].value;
    TKUnit.assertEqual(rotate, 0);
    TKUnit.assert(scale.x === 1 && scale.y === 1);
    TKUnit.assert(translate.x === 0 && translate.y === 0);
}

export function test_ReadAnimationWithUnsortedKeyframes() {
    let css = ".test { animation-name: test; } " +
        "@keyframes test { " +
        "from { opacity: 0; } " +
        "20%, 60% { opacity: 0.5; } " +
        "40%, 80% { opacity: 0.3; } " +
        "to { opacity: 1; } " +
        "}";
    let animation = createAnimationFromCSS(css, "test");
    TKUnit.assertEqual(animation.keyframes.length, 6);
    TKUnit.assertEqual(animation.keyframes[0].declarations[0].value, 0);
    TKUnit.assertEqual(animation.keyframes[1].declarations[0].value, 0.5);
    TKUnit.assertEqual(animation.keyframes[2].declarations[0].value, 0.3);
    TKUnit.assertEqual(animation.keyframes[3].declarations[0].value, 0.5);
    TKUnit.assertEqual(animation.keyframes[4].declarations[0].value, 0.3);
    TKUnit.assertEqual(animation.keyframes[5].declarations[0].value, 1);
    TKUnit.assertEqual(animation.keyframes[0].duration, 0);
    TKUnit.assertEqual(animation.keyframes[1].duration, 0.2);
    TKUnit.assertEqual(animation.keyframes[2].duration, 0.4);
    TKUnit.assertEqual(animation.keyframes[3].duration, 0.6);
    TKUnit.assertEqual(animation.keyframes[4].duration, 0.8);
    TKUnit.assertEqual(animation.keyframes[5].duration, 1);
}

export function test_ReadAnimationsWithCSSImport() {
    let css = "@import '~/ui/animation/test.css'; .test { animation-name: test; }";
    let animation = createAnimationFromCSS(css, "test");
    TKUnit.assertEqual(animation.keyframes.length, 3);
    TKUnit.assertEqual(animation.keyframes[1].declarations[0].property, "backgroundColor");
}

export function test_LoadTwoAnimationsWithTheSameName() {
    let scope = new styleScope.StyleScope();
    scope.css = "@keyframes a1 { from { opacity: 0; } to { opacity: 1; } } @keyframes a1 { from { opacity: 0; } to { opacity: 0.5; } } .a { animation-name: a1; }";
    scope.ensureSelectors();
    let selector = findSelectorInScope(scope, "a");
    let animation = scope.getAnimations(selector.ruleset)[0];
    TKUnit.assertEqual(animation.keyframes.length, 2);
    TKUnit.assertEqual(animation.keyframes[1].declarations[0].value, 0.5);
    scope = new styleScope.StyleScope();
    scope.css = "@keyframes k { from { opacity: 0; } to { opacity: 1; } } .a { animation-name: k; animation-duration: 2; } .a { animation-name: k; animation-duration: 3; }";
    scope.ensureSelectors();
    selector = findSelectorInScope(scope, "a");
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[0].keyframes.length, 2);
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[0].keyframes.length, 2);
}

export function test_LoadAnimationProgrammatically() {
    let stack = new stackModule.StackLayout();
    helper.buildUIAndRunTest(stack, function (views) {
        let page = views[1];
        page.css = "@keyframes a { from { opacity: 1; } to { opacity: 0; } }";
        let animation = page.getKeyframeAnimationWithName("a");
        TKUnit.assertEqual(animation.keyframes.length, 2);
        TKUnit.assertEqual(animation.keyframes[1].declarations[0].property, "opacity");
        TKUnit.assertEqual(animation.keyframes[1].declarations[0].value, 0);
    });
}

export function test_ExecuteCSSAnimation() {
    let mainPage = helper.getCurrentPage();
    mainPage.css = null;
    let label = new labelModule.Label()
    label.text = "label";
    let stackLayout = new stackModule.StackLayout();
    stackLayout.addChild(label);

    mainPage.css = "@keyframes k { from { background-color: red; } to { background-color: green; } } .l { animation-name: k; animation-duration: 0.1s; animation-fill-mode: forwards; }";
    mainPage.content = stackLayout;

    TKUnit.waitUntilReady(() => label.isLoaded);
    label.className = "l";
    let green = new color.Color("green");
    TKUnit.waitUntilReady(() => green.equals(label.backgroundColor), 1);
    TKUnit.assertEqual(label.backgroundColor, green);
}

//export function test_ExecuteFillMode() {
//    let mainPage = helper.getCurrentPage();
//    mainPage.style.backgroundColor = unsetValue;
//    mainpage.style.color = unsetValue;
//    mainPage.bindingContext = unsetValue;
//    mainPage.cssClass = unsetValue;
//    mainPage.id = unsetValue;
//    mainPage.css = null;

//    let label = new labelModule.Label({ text: "label" });
//    let stackLayout = new stackModule.StackLayout();
//    stackLayout.addChild(label);
//    mainPage.css = "@keyframes k { from { background-color: red; } to { background-color: green; } } " +
//        ".l { animation-name: k; animation-duration: 0.5s; animation-fill-mode: none; } " +
//        ".l2 { animation-name: k; animation-duration: 0.5s; animation-fill-mode: forwards; }";
//    mainPage.content = stackLayout;

//    TKUnit.waitUntilReady(() => label.isLoaded);

//    TKUnit.assertEqual(label.backgroundColor, undefined, "label.backgroundColor should be undefind");

//    label.className = "l";    
//    TKUnit.assertEqual(label.backgroundColor, undefined, "label.backgroundColor should be undefind");

//    label.className = "l2";
//    TKUnit.assertEqual(label.backgroundColor, new color.Color("green"));
//}

export function test_ReadTwoAnimations() {
    let scope = new styleScope.StyleScope();
    scope.css = ".test { animation: one 0.2s ease-out 1 2, two 2s ease-in; }";
    scope.ensureSelectors();
    let selector = findSelectorInScope(scope, "test");
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset).length, 2);
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[0].curve, enums.AnimationCurve.easeOut);
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[1].curve, enums.AnimationCurve.easeIn);
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[1].name, "two");
    TKUnit.assertEqual(scope.getAnimations(selector.ruleset)[1].duration, 2000);
}

export function test_AnimationCurveInKeyframes() {
    let scope = new styleScope.StyleScope();
    scope.css = "@keyframes an { from { animation-timing-function: linear; background-color: red; } 50% { background-color: green; } to { background-color: black; } } .test { animation-name: an; animation-timing-function: ease-in; }";
    scope.ensureSelectors();
    let selector = findSelectorInScope(scope, "test");
    let animation = scope.getAnimations(selector.ruleset)[0];
    TKUnit.assertEqual(animation.keyframes[0].curve, enums.AnimationCurve.linear);
    TKUnit.assertEqual(animation.keyframes[1].curve, undefined);
    TKUnit.assertEqual(animation.keyframes[1].curve, undefined);
    let realAnimation = keyframeAnimation.KeyframeAnimation.keyframeAnimationFromInfo(animation);
    TKUnit.assertEqual(realAnimation.animations[1].curve, enums.AnimationCurve.linear);
    TKUnit.assertEqual(realAnimation.animations[2].curve, enums.AnimationCurve.easeIn);
}