vfxreview/lib/shot-order.ts

// The order shots appear in on the project page's Shots tab. Shared with the
// shot detail page so its previous/next navigation walks the same list.

type OrderableShot = {
  episode?: string | null;
  scene: string;
  shotNumber: number;
  shotGroup?: { name: string } | null;
};

export function sortShotsForList<T extends OrderableShot>(shots: T[], projectType: string): T[] {
  // Episodic: episode → scene → shotNumber
  if (projectType === "EPISODIC") {
    return [...shots].sort((a, b) => {
      const ea = a.episode ?? "";
      const eb = b.episode ?? "";
      if (ea !== eb) return ea.localeCompare(eb, undefined, { numeric: true });
      if (a.scene !== b.scene) return a.scene.localeCompare(b.scene, undefined, { numeric: true });
      return a.shotNumber - b.shotNumber;
    });
  }

  // Standard with custom groups: group → scene → shotNumber, ungrouped last
  if (projectType === "STANDARD" && shots.some((s) => s.shotGroup)) {
    return [...shots].sort((a, b) => {
      const ga = a.shotGroup?.name ?? "￿";
      const gb = b.shotGroup?.name ?? "￿";
      if (ga !== gb) return ga.localeCompare(gb, undefined, { numeric: true });
      if (a.scene !== b.scene) return a.scene.localeCompare(b.scene, undefined, { numeric: true });
      return a.shotNumber - b.shotNumber;
    });
  }

  // Otherwise the list keeps the query's createdAt order
  return shots;
}