import { describe, expect, it } from "vitest";
import { AnimationClip, Quaternion, QuaternionKeyframeTrack, VectorKeyframeTrack } from "three";
import { retargetClips, teleportTargets } from "../src/characters/index.js";

const rest = (q) => new Map([["arm", { position: { x: 0, y: 1, z: 0 }, quaternion: q }]]);

describe("retargetClips", () => {
    it("wirft konstante Positionsspuren weg", () => {
        const clip = new AnimationClip("a", 1, [
            new VectorKeyframeTrack("arm.position", [0, 1], [0, 1, 0, 0, 1, 0]),
            new QuaternionKeyframeTrack("arm.quaternion", [0], [0, 0, 0, 1]),
        ]);
        const out = retargetClips([clip], rest(new Quaternion()), rest(new Quaternion()));
        expect(out[0].tracks.map((t) => t.name)).toEqual(["arm.quaternion"]);
    });

    it("überträgt Rotationen relativ zur Ruhepose", () => {
        const src = new Quaternion().setFromAxisAngle({ x: 0, y: 1, z: 0 }, 0.3);
        const dst = new Quaternion().setFromAxisAngle({ x: 0, y: 1, z: 0 }, 0.9);
        const clip = new AnimationClip("a", 1, [
            new QuaternionKeyframeTrack("arm.quaternion", [0], [src.x, src.y, src.z, src.w]),
        ]);
        const out = retargetClips([clip], rest(src), rest(dst));
        const v = out[0].tracks[0].values;
        expect(new Quaternion(v[0], v[1], v[2], v[3]).angleTo(dst)).toBeLessThan(1e-6);
    });
});

describe("teleportTargets", () => {
    it("sortiert Wahrzeichen nach Höhe", () => {
        const targets = teleportTargets([
            { name: "klein", xyz: [0, 0, 0], height: 30 },
            { name: "groß", xyz: [10, 20, 0], height: 200 },
        ]);
        expect(targets[0].name).toBe("groß");
        expect(targets[0].z).toBe(-20);
    });
});