/**
 * Render quality policy (monetization gate).
 *
 *   Free plan   → 360p only, watermarked preview.
 *   Pro/Business → every resolution (540p–4K), no watermark.
 *
 * (AI-generated videos will have NO free preview at all — pay/credits before the
 * result is shown. That rule belongs in the AI-video feature when it's built;
 * this module covers the normal template render flow.)
 */
import type { PlanId } from "@/lib/plans";
import type { RenderSettings } from "@/lib/render-schemas";

export type Resolution = RenderSettings["resolution"]; // "360p" | "540p" | "720p" | "1080p" | "4K"

export const FREE_RESOLUTION: Resolution = "360p";
export const ALL_RESOLUTIONS: Resolution[] = ["360p", "540p", "720p", "1080p", "4K"];

/** Resolutions a plan may render at. Free = 360p only; any paid plan = all. */
export function allowedResolutions(plan: PlanId): Resolution[] {
  return plan === "free" ? [FREE_RESOLUTION] : ALL_RESOLUTIONS;
}

export function isResolutionAllowed(plan: PlanId, res: Resolution): boolean {
  return allowedResolutions(plan).includes(res);
}

/** Free renders get a watermarked preview; paid plans get clean output. */
export function isWatermarked(plan: PlanId): boolean {
  return plan === "free";
}