import { Plan } from "@prisma/client";
import { getResolution, RESOLUTIONS } from "./constants";
import { isSelfHostedEdition } from "./edition";

export type PlanLimits = {
  monthlyQuota: number;
  maxBatchSize: number;
  maxResolutionHeight: number;
  maxFileSizeBytes: number;
  watermarkOptional: boolean;
  /** Custom text / PNG logo + position controls (Pro). */
  customWatermark: boolean;
  /** Pair a unique cover image per audio in a batch (Pro). */
  perItemImages: boolean;
  /** Blurred cover background + art-track layout templates (Pro). */
  artTrackLayouts: boolean;
  allowedAudioExtensions: readonly string[];
  id3TagSupport: boolean;
};

export const PLAN_LIMITS: Record<Plan, PlanLimits> = {
  FREE: {
    monthlyQuota: 10,
    maxBatchSize: 3,
    maxResolutionHeight: 720,
    maxFileSizeBytes: 30 * 1024 * 1024,
    watermarkOptional: true,
    customWatermark: false,
    perItemImages: false,
    artTrackLayouts: false,
    allowedAudioExtensions: [".mp3"],
    id3TagSupport: true,
  },
  PREMIUM: {
    monthlyQuota: 50,
    maxBatchSize: 5,
    maxResolutionHeight: 1080,
    maxFileSizeBytes: 30 * 1024 * 1024,
    watermarkOptional: true,
    customWatermark: true,
    perItemImages: true,
    artTrackLayouts: true,
    allowedAudioExtensions: [".mp3", ".wav", ".flac"],
    id3TagSupport: true,
  },
};

export const SELFHOSTED_LIMITS: PlanLimits = {
  monthlyQuota: 1_000_000,
  maxBatchSize: 100,
  maxResolutionHeight: Math.max(...RESOLUTIONS.map((r) => r.height)),
  maxFileSizeBytes: 500 * 1024 * 1024,
  watermarkOptional: true,
  customWatermark: true,
  perItemImages: true,
  artTrackLayouts: true,
  allowedAudioExtensions: [".mp3", ".wav", ".flac"],
  id3TagSupport: true,
};

export const SALES_EMAIL = "songs2vid@atakanozban.com";
export const SUPPORT_EMAIL = "songs2vid@atakanozban.com";
/** Pro quota reset / extension requests */
export const QUOTA_REQUEST_EMAIL = "songs2vid@atakanozban.com";
export const UPGRADE_URL = "/#pricing";
export const GITEA_ISSUES_URL =
  process.env.NEXT_PUBLIC_GITEA_ISSUES_URL ?? "https://git.atakanozban.com/Songs2VID/songs2vid/issues";
export const GITEA_URL =
  process.env.NEXT_PUBLIC_GITEA_URL ?? "https://git.atakanozban.com/Songs2VID";
export const DOCKER_HUB_URL =
  process.env.NEXT_PUBLIC_DOCKER_HUB_URL ?? "https://hub.docker.com/r/atakanozban/songs2vid";

/** Docusaurus docs base URL. Local: http://localhost:3001 (npm run docs:dev). */
export function resolveDocsUrl(): string {
  if (process.env.NEXT_PUBLIC_DOCS_URL?.trim()) {
    return process.env.NEXT_PUBLIC_DOCS_URL.replace(/\/$/, "");
  }
  const auth = process.env.NEXTAUTH_URL ?? "";
  if (/localhost|127\.0\.0\.1/i.test(auth)) {
    return "http://localhost:3001";
  }
  return "https://docs.songs2vid.com";
}

export const DOCS_URL = resolveDocsUrl();
export const API_DOCS_URL = `${DOCS_URL}/docs/api/overview`;

export function getPlanLimits(plan: Plan): PlanLimits {
  if (isSelfHostedEdition()) return SELFHOSTED_LIMITS;
  return PLAN_LIMITS[plan];
}

export function getResolutionsForPlan(plan: Plan) {
  const maxHeight = getPlanLimits(plan).maxResolutionHeight;
  return RESOLUTIONS.filter((r) => r.height <= maxHeight);
}

export function isResolutionAllowedForPlan(resolution: string, plan: Plan): boolean {
  const res = getResolution(resolution);
  if (!res) return false;
  return res.height <= getPlanLimits(plan).maxResolutionHeight;
}

export function isAudioExtensionAllowed(filename: string, plan: Plan): boolean {
  const ext = filename.slice(filename.lastIndexOf(".")).toLowerCase();
  return getPlanLimits(plan).allowedAudioExtensions.includes(ext);
}

export function getNextMonthlyQuotaReset(from: Date = new Date()): Date {
  return new Date(from.getFullYear(), from.getMonth() + 1, 1, 0, 0, 0, 0);
}