import "server-only";

import { eq } from "drizzle-orm";
import { getDb } from "@/db";
import { commissionSettings } from "@/db/schema";
import { HttpError } from "@/lib/security/http";

export type SlipProvider = "slip2go" | "slipok";

export function isSlipProvider(value: unknown): value is SlipProvider {
  return value === "slip2go" || value === "slipok";
}

export function slipProviderConfigured(provider: SlipProvider): boolean {
  if (provider === "slipok")
    return /^\d+$/.test(process.env.SLIPOK_BRANCH_ID ?? "") && Boolean(process.env.SLIPOK_API_KEY?.trim());
  try {
    return new URL(process.env.SLIP2GO_VERIFY_URL ?? "").protocol === "https:" &&
      Boolean(process.env.SLIP2GO_API_SECRET?.trim());
  } catch { return false; }
}

export async function getCommissionSlipProvider(): Promise<SlipProvider> {
  const [settings] = await getDb().select({ slipProvider: commissionSettings.slipProvider })
    .from(commissionSettings).where(eq(commissionSettings.id, 1)).limit(1);
  if (!settings || !isSlipProvider(settings.slipProvider))
    throw new HttpError(503, "slip-provider-not-configured");
  return settings.slipProvider;
}