import type { FCurveInterpolation } from "./web-engine";
import type { WebEngineEditCommand } from "./web-engine";

type AnimationCommand<T extends WebEngineEditCommand["type"]> = Extract<WebEngineEditCommand, { type: T }>;

/** Typed constructors for animation, constraint and render property edits. */
export const animationRenderCommands = Object.freeze({
  insertKeyframe(objectId: string, frame: number, property: AnimationCommand<"insertObjectKeyframe">["property"], interpolation: FCurveInterpolation = "BEZIER"): AnimationCommand<"insertObjectKeyframe"> {
    return { type: "insertObjectKeyframe", objectId, frame, property, interpolation };
  },
  deleteKeyframe(objectId: string, frame: number, property?: AnimationCommand<"deleteObjectKeyframe">["property"]): AnimationCommand<"deleteObjectKeyframe"> {
    return { type: "deleteObjectKeyframe", objectId, frame, ...(property ? { property } : {}) };
  },
  setConstraint(objectId: string, constraintName: string, enabled: boolean, influence: number): AnimationCommand<"setConstraint"> {
    return { type: "setConstraint", objectId, constraintName, enabled, influence };
  },
  setActiveAction(objectId: string, actionId: string | null): AnimationCommand<"setActiveAction"> {
    return { type: "setActiveAction", objectId, actionId };
  },
  setNLAStack(objectId: string, tracks: AnimationCommand<"setNLAStack">["tracks"], baseRevision?: number): AnimationCommand<"setNLAStack"> {
    return { type: "setNLAStack", objectId, tracks, ...(baseRevision === undefined ? {} : { baseRevision }) };
  },
  setLightProperties(dataId: string, properties: AnimationCommand<"setLightProperties">["properties"]): AnimationCommand<"setLightProperties"> {
    return { type: "setLightProperties", dataId, properties };
  },
  setCameraProperties(dataId: string, properties: AnimationCommand<"setCameraProperties">["properties"]): AnimationCommand<"setCameraProperties"> {
    return { type: "setCameraProperties", dataId, properties };
  },
  setWorldProperties(dataId: string, properties: AnimationCommand<"setWorldProperties">["properties"]): AnimationCommand<"setWorldProperties"> {
    return { type: "setWorldProperties", dataId, properties };
  },
} satisfies Record<string, (...args: never[]) => WebEngineEditCommand>);