import "server-only";
import { NextRequest, NextResponse } from "next/server";
import { z } from "zod";
import { admin, required } from "./supabase";
import { ServiceError, checkServiceError } from "./service-error";
import { prefixUpdateSchema } from "@/shared/profile-appearance";

export async function moderatorUsersApi(
  request: NextRequest,
  path: string[],
  reviewer: string,
  jsonBody: (request: NextRequest) => Promise<unknown>,
) {
  const db = admin();
  const columns =
    "id,display_name,name_glow,glow_color,role,bug_finder,custom_prefix,custom_prefix_icon" as const;
  const respond = (body: unknown) =>
    NextResponse.json(body, { headers: { "Cache-Control": "no-store" } });
  if (request.method === "GET" && path.length === 2) {
    const search = (request.nextUrl.searchParams.get("q") ?? "")
      .trim()
      .slice(0, 64);
    let query = db
      .from("profiles")
      .select(columns)
      .order("display_name")
      .order("id")
      .limit(50);
    if (search) {
      if (z.string().uuid().safeParse(search).success)
        query = query.eq("id", search);
      else
        query = query.ilike(
          "display_name",
          "%" + search.replace(/[\\%_]/g, "\\$&") + "%",
        );
    }
    return respond({ users: required(await query) });
  }
  if (request.method === "PATCH" && path.length === 3) {
    const id = z.string().uuid().parse(path[2]),
      body = prefixUpdateSchema.parse(await jsonBody(request));
    const updated = await db.rpc("set_user_prefix", {
      p_reviewer: reviewer,
      p_user: id,
      p_prefix: body.prefix,
      p_icon: body.icon,
    });
    checkServiceError(updated.error);
    const result = await db
      .from("profiles")
      .select(columns)
      .eq("id", id)
      .maybeSingle();
    if (result.error) required(result);
    if (!result.data) throw new ServiceError("Player not found", 404);
    return respond({ user: result.data });
  }
  return NextResponse.json({ error: "Not found" }, { status: 404 });
}