import { getAuth } from "@clerk/react-router/server";
import { eq, and } from "drizzle-orm";
import { database } from "~/database/context";
import * as schema from "~/database/schema";
import { isCommissioner } from "~/models/commissioner";
import { getSocketIO } from "../../../server/socket";
import { logger } from "~/lib/logger";

import type { ActionFunctionArgs } from "react-router";
export async function action(args: ActionFunctionArgs) {
  const { request } = args;
  const { userId } = await getAuth(args);

  if (!userId) {
    return Response.json({ error: "Unauthorized" }, { status: 401 });
  }

  const formData = await request.formData();
  const seasonId = formData.get("seasonId") as string;
  const teamId = formData.get("teamId") as string;
  const adjustmentRaw = formData.get("adjustment");
  const adjustment = adjustmentRaw !== null ? parseInt(adjustmentRaw as string, 10) : NaN;

  if (!seasonId || !teamId || isNaN(adjustment)) {
    return Response.json({ error: "seasonId, teamId, and adjustment are required" }, { status: 400 });
  }

  const db = database();

  const season = await db.query.seasons.findFirst({
    where: eq(schema.seasons.id, seasonId),
  });

  if (!season) {
    return Response.json({ error: "Season not found" }, { status: 404 });
  }

  if (season.status !== "draft") {
    return Response.json({ error: "Draft is not currently active" }, { status: 409 });
  }

  if (!(await isCommissioner(season.leagueId, userId))) {
    return Response.json(
      { error: "Only commissioners can adjust time banks" },
      { status: 403 }
    );
  }

  const [currentTimer] = await db
    .select()
    .from(schema.draftTimers)
    .where(
      and(
        eq(schema.draftTimers.seasonId, seasonId),
        eq(schema.draftTimers.teamId, teamId)
      )
    );

  let newTime: number;

  if (!currentTimer) {
    if (adjustment <= 0) {
      return Response.json({ error: "Timer not found for this team" }, { status: 404 });
    }
    newTime = adjustment;
    await db.insert(schema.draftTimers).values({
      seasonId,
      teamId,
      timeRemaining: newTime,
    });
  } else {
    newTime = Math.max(0, currentTimer.timeRemaining + adjustment);
    await db
      .update(schema.draftTimers)
      .set({ timeRemaining: newTime, updatedAt: new Date() })
      .where(eq(schema.draftTimers.id, currentTimer.id));
  }

  try {
    getSocketIO()
      .to(`draft-${seasonId}`)
      .emit("timer-update", {
        seasonId,
        teamId,
        timeRemaining: newTime,
        currentPickNumber: season.currentPickNumber ?? 1,
      });
  } catch (error) {
    logger.error("Socket.IO error:", error);
  }

  return Response.json({ success: true, timeRemaining: newTime });
}
