export const DEFAULT_ORBIT_FPS = 6;
export const DEFAULT_ORBIT_DURATION_SECONDS = 12;

export function orbitFrameOutputs(job) {
  const orbit = job.orbit && typeof job.orbit === "object" ? job.orbit : {};
  const output = Array.isArray(job.outputs) && job.outputs.length ? job.outputs[0] : {};
  const width = Math.max(1, Math.floor(Number(output.width || job.width || orbit.width || 720)));
  const height = Math.max(1, Math.floor(Number(output.height || job.height || orbit.height || 480)));
  const fps = Math.max(1, Math.min(Number(orbit.fps || DEFAULT_ORBIT_FPS), 60));
  const durationSeconds = Math.max(0.1, Math.min(Number(orbit.durationSeconds || DEFAULT_ORBIT_DURATION_SECONDS), 60));
  const frameCount = Math.max(2, Math.min(Math.round(fps * durationSeconds), 720));
  const startAzimuth = Number.isFinite(Number(orbit.startAzimuth)) ? Number(orbit.startAzimuth) : -45;
  const elevation = Number.isFinite(Number(orbit.elevation)) ? Number(orbit.elevation) : 30;
  const turns = Number.isFinite(Number(orbit.turns)) ? Number(orbit.turns) : 1;
  return {
    path: String(output.path || job.output || ""),
    width,
    height,
    fps,
    durationSeconds,
    frameCount,
    outputs: Array.from({ length: frameCount }, (_, index) => ({
      path: "",
      width,
      height,
      camera: `${startAzimuth + ((360 * turns * index) / frameCount)}:${elevation}`
    }))
  };
}