import * as testModule from "../../ui-test";
import * as TKUnit from "../../tk-unit";
import * as labelModule from "@nativescript/core/ui/label";
import * as colorModule from "@nativescript/core/color";
import * as layoutHelper from "./layout-helper";
import * as commonTests from "./common-layout-tests";
import * as helper from "../../ui-helper";

// >> absolute-layout-require
import * as absoluteLayoutModule from "@nativescript/core/ui/layouts/absolute-layout";
// << absolute-layout-require

export class AbsoluteLayoutTest extends testModule.UITest<absoluteLayoutModule.AbsoluteLayout> {

    public create(): absoluteLayoutModule.AbsoluteLayout {
        return new absoluteLayoutModule.AbsoluteLayout();
    }

    public test_recycling() {
        helper.nativeView_recycling_test(() => new absoluteLayoutModule.AbsoluteLayout());
    }

    public test_item_recycling() {
        helper.nativeView_recycling_test(() => new labelModule.Label(), () => new absoluteLayoutModule.AbsoluteLayout());
    }

    public snippet() {

        // >> absolute-layout-populating
        var absoluteLayout = new absoluteLayoutModule.AbsoluteLayout();
        absoluteLayout.width = 230;
        absoluteLayout.height = 230;
        absoluteLayout.style.backgroundColor = new colorModule.Color("LightGray");
        var label = new labelModule.Label();
        // In absolute layout place of an UI element is determined by 4 parameters : left, top, width and height.
        absoluteLayoutModule.AbsoluteLayout.setLeft(label, 10);
        absoluteLayoutModule.AbsoluteLayout.setTop(label, 10);
        label.width = 100;
        label.height = 100;
        label.text = "LT";
        label.id = "LT";
        label.style.backgroundColor = new colorModule.Color("Red");
        absoluteLayout.addChild(label);
        // << absolute-layout-populating
    }

    public testAll() {

        let absoluteLayout = this.testView;
        absoluteLayout.width = { value: 230, unit: "px" };
        absoluteLayout.height = { value: 230, unit: "px" };
        absoluteLayout.style.backgroundColor = new colorModule.Color("LightGray");
        let label = new labelModule.Label();

        absoluteLayoutModule.AbsoluteLayout.setLeft(label, layoutHelper.dp(10));
        absoluteLayoutModule.AbsoluteLayout.setTop(label, layoutHelper.dp(10));
        label.width = { value: 100, unit: "px" };
        label.height = { value: 100, unit: "px" };
        label.text = "LT";
        label.style.backgroundColor = new colorModule.Color("Red");
        absoluteLayout.addChild(label);

        this.waitUntilTestElementLayoutIsValid();

        let actualValue = label._getCurrentLayoutBounds();
        let width = actualValue.right - actualValue.left;
        let height = actualValue.bottom - actualValue.top;
        TKUnit.assertEqual(actualValue.left, 10, "ActualLeft");
        TKUnit.assertEqual(actualValue.top, 10, "ActualTop");
        TKUnit.assertEqual(width, 100, "ActualWidth");
        TKUnit.assertEqual(height, 100, "Actualheight");
    }

    public test_padding() {
        let absoluteLayout = this.testView;
        absoluteLayout.width = { value: 200, unit: "px" };
        absoluteLayout.height = { value: 200, unit: "px" };
        absoluteLayout.style.paddingLeft = { value: 5, unit: "px" };
        absoluteLayout.style.paddingTop = { value: 15, unit: "px" };

        // Left Top
        let btn = new layoutHelper.MyButton();
        btn.width = { value: 100, unit: "px" };
        btn.height = { value: 100, unit: "px" };
        absoluteLayoutModule.AbsoluteLayout.setLeft(btn, layoutHelper.dp(20));
        absoluteLayoutModule.AbsoluteLayout.setTop(btn, layoutHelper.dp(20));
        absoluteLayout.addChild(btn);

        this.waitUntilTestElementLayoutIsValid();
        layoutHelper.assertMeasure(btn, 100, 100);
        layoutHelper.assertLayout(btn, 25, 35, 100, 100);
    }

    public test_percent_children_support() {
        let layout = this.testView;
        layout.width = { value: 200, unit: "px" };
        layout.height = { value: 200, unit: "px" };

        let btn = new layoutHelper.MyButton();
        (<any>btn).width = "50%";
        (<any>btn).height = "50%";
        btn.margin = "10%";
        layout.addChild(btn);

        this.waitUntilTestElementLayoutIsValid();

        // AbsoluteLayout measures with 0/UNSPECIFIED so we cannot support percents in it.
        layoutHelper.assertMeasure(btn, 100, 100);
        layoutHelper.assertLayout(btn, 20, 20, btn.getMeasuredWidth(), btn.getMeasuredHeight());

        TKUnit.assertEqual(btn.getMeasuredWidth(), 100, "Button MeasuredWidth incorrect");
        TKUnit.assertEqual(btn.getMeasuredHeight(), 100, "Button MeasuredHeight incorrect");
    }

    public test_percent_support_nativeLayoutParams_are_correct() {
        commonTests.percent_support_nativeLayoutParams_are_correct(this);
    }
}

export function createTestCase(): AbsoluteLayoutTest {
    return new AbsoluteLayoutTest();
}