module TK.SpaceTac.UI.Specs {
    testing("WeaponEffect", test => {
        let testgame = setupBattleview(test);

        function checkEmitters(step: string, expected: number) {
            test.check.same(testgame.view.arena.layer_weapon_effects.length, expected, `${step} - layer children`);
            //test.check.same(keys(testgame.view.particles.emitters).length, expected, `${step} - registered emitters`);
        }

        test.case("displays shield hit effect", check => {
            let battleview = testgame.view;
            battleview.timer = new Timer();

            let effect = new WeaponEffect(battleview.arena, new Ship(), new Target(0, 0), new TriggerAction("weapon"));
            effect.shieldImpactEffect({ x: 10, y: 10 }, { x: 20, y: 15 }, 500, 3000, true);

            let layer = battleview.arena.layer_weapon_effects;
            check.equals(layer.length, 1);

            testgame.clockForward(600);
            check.equals(layer.length, 2);

            let child = layer.list[0];
            if (check.instance(child, UIImage, "first child is an image")) {
                check.nears(child.rotation, -2.677945044588987, 10);
                check.equals(child.x, 20, "x");
                check.equals(child.y, 15, "y");
            }

            check.instance(layer.list[1], Phaser.GameObjects.Particles.ParticleEmitterManager, "second child is an emitter");
        });

        test.case("displays gatling gun effect", check => {
            let battleview = testgame.view;
            battleview.timer = new Timer();

            let ship = nn(battleview.battle.playing_ship);
            let effect = new WeaponEffect(battleview.arena, new Ship(), Target.newFromShip(ship), new TriggerAction("weapon"));
            effect.gunEffect();

            let layer = battleview.arena.layer_weapon_effects;
            check.equals(layer.length, 1);
            check.instance(layer.list[0], Phaser.GameObjects.Particles.ParticleEmitterManager, "first child is an emitter");
        });

        test.case("displays shield and hull effect on impacted ships", check => {
            let battleview = testgame.view;
            battleview.timer = new Timer();

            let ship = nn(battleview.battle.playing_ship);
            ship.setArenaPosition(50, 30);

            let weapon = new TriggerAction("weapon", { effects: [new DamageEffect(1)], range: 500 });
            check.patch(weapon, "getImpactedShips", () => [ship]);

            let dest = new Ship();
            let effect = new WeaponEffect(battleview.arena, dest, Target.newFromShip(dest), weapon);
            check.patch(effect, "getEffectForWeapon", () => (() => 100));

            let mock_shield_impact = check.patch(effect, "shieldImpactEffect", null);
            let mock_hull_impact = check.patch(effect, "hullImpactEffect", null);

            ship.setValue("shield", 0);
            effect.start();
            check.called(mock_shield_impact, 0);
            check.called(mock_hull_impact, [
                [Target.newFromShip(dest), ship.location, 40, 400]
            ]);

            ship.setValue("shield", 10);
            effect.start();
            check.called(mock_shield_impact, [
                [Target.newFromShip(dest), ship.location, 40, 800, false]
            ]);
            check.called(mock_hull_impact, 0);
        });

        test.case("removes particle emitters when done", check => {
            let battleview = testgame.view;
            battleview.timer = new Timer();

            let effect = new WeaponEffect(battleview.arena, new Ship(), Target.newFromLocation(50, 50), new TriggerAction("weapon"));

            effect.gunEffect();
            checkEmitters("gun effect started", 1);
            testgame.clockForward(6000);
            checkEmitters("gun effect ended", 0);

            effect.hullImpactEffect({ x: 0, y: 0 }, { x: 50, y: 50 }, 1000, 2000);
            checkEmitters("hull effect started", 1);
            testgame.clockForward(8500);
            checkEmitters("hull effect ended", 0);
        });

        test.case("adds a laser effect", check => {
            let battleview = testgame.view;
            battleview.timer = new Timer();

            let effect = new WeaponEffect(battleview.arena, new Ship(), Target.newFromLocation(31, 49), new TriggerAction("weapon"));

            let result = effect.angularLaser({ x: 20, y: 30 }, 300, Math.PI / 4, -Math.PI / 2, 5);
            check.equals(result, 200);

            let layer = battleview.arena.layer_weapon_effects;
            check.equals(layer.length, 1);
            let image = layer.list[0];
            if (check.instance(image, UIImage, "first child is an image")) {
                check.equals(image.name, "battle-effects-laser");
                //check.equals(image.width, 300);
                check.equals(image.x, 20);
                check.equals(image.y, 30);
                check.nears(image.rotation, Math.PI / 4);
            }

            let values = battleview.animations.simulate(image, "rotation", 4);
            check.nears(values[0], Math.PI / 4);
            check.nears(values[1], 0);
            check.nears(values[2], -Math.PI / 4);
            check.nears(values[3], -Math.PI / 2);
        });
    });
}