import { PrismaClient } from "@prisma/client";

// Safety net: Prisma returns BigInt columns (fileSize, highResSize, …) as
// BigInt, which JSON.stringify refuses — one such column anywhere in an API
// response turns the whole route into a 500. Serialize them as strings, the
// same shape the routes that convert them by hand already produce. Routes
// that spread whole rows into NextResponse.json are then safe by default.
declare global {
  interface BigInt {
    toJSON(): string;
  }
}
if (!("toJSON" in BigInt.prototype)) {
  Object.defineProperty(BigInt.prototype, "toJSON", {
    value: function toJSON(this: bigint) {
      return this.toString();
    },
    writable: true,
    configurable: true,
  });
}

const globalForPrisma = globalThis as unknown as {
  prisma: PrismaClient | undefined;
};

export const db =
  globalForPrisma.prisma ??
  new PrismaClient({
    log:
      process.env.NODE_ENV === "development"
        ? ["query", "error", "warn"]
        : ["error"],
  });

if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = db;