import { createClient } from "https://esm.sh/@supabase/supabase-js";
import { runChallenge } from "./runners/index.ts";

// http://127.0.0.1:54321/functions/v1/judge-challenges
// Judge all status is submitted challenges

Deno.serve(async (_) => {
  try {
    const client = createClient(
      Deno.env.get("SUPABASE_URL") ?? "",
      Deno.env.get("SUPABASE_SERVICE_ROLE_KEY") ?? ""
    );

    const { data, error } = await client
      .from("challenges")
      .select<any, any>("*")
      .eq("status", "submitted")
      .limit(20);

    if (error) {
      throw error;
    }

    let counter = 0;
    for (const item of data) {
      const { data: problem } = await client
        .from("problems")
        .select<any, any>("*")
        .eq("id", item.problem)
        .single();

      if (problem == null) {
        throw new Error("Problem was not found.");
      }

      const { data: cases } = await client
        .from("problem_cases")
        .select<any, any>("*")
        .eq("problem", problem.id);

      const result = await runChallenge(item, problem, cases);

      await client
        .from("challenges")
        .update<any>({ status: result.status === "skipped" ? "finished" : "judging", details: result })
        .eq("id", item.id);

      counter++;
    }

    return new Response(JSON.stringify({ judged: counter }), {
      headers: { "Content-Type": "application/json" },
      status: 200
    });
  } catch (err) {
    return new Response(String(err?.message ?? err), { status: 500 });
  }
});