import type { Params } from "@remix-run/react";
import invariant from "tiny-invariant";
import type { Tournament, User } from "~/db/types";
import type { ModeShort } from "~/modules/in-game-lists";
import { rankedModesShort } from "~/modules/in-game-lists/modes";
import { databaseTimestampToDate } from "~/utils/dates";
import type { FindTeamsByTournamentId } from "./queries/findTeamsByTournamentId.server";
import type {
  TournamentLoaderData,
  TournamentLoaderTeam,
} from "./routes/to.$id";
import { TOURNAMENT } from "./tournament-constants";
import { validate } from "~/utils/remix";

export function resolveOwnedTeam({
  teams,
  userId,
}: {
  teams: Array<TournamentLoaderTeam>;
  userId?: User["id"];
}) {
  if (typeof userId !== "number") return;

  return teams.find((team) =>
    team.members.some((member) => member.isOwner && member.userId === userId)
  );
}

export function teamHasCheckedIn(
  team: Pick<TournamentLoaderTeam, "checkedInAt">
) {
  return Boolean(team.checkedInAt);
}

export function tournamentIdFromParams(params: Params<string>) {
  const result = Number(params["id"]);
  invariant(!Number.isNaN(result), "id is not a number");

  return result;
}

export function modesIncluded(
  tournament: Pick<Tournament, "mapPickingStyle">
): ModeShort[] {
  switch (tournament.mapPickingStyle) {
    case "AUTO_SZ": {
      return ["SZ"];
    }
    case "AUTO_TC": {
      return ["TC"];
    }
    case "AUTO_RM": {
      return ["RM"];
    }
    case "AUTO_CB": {
      return ["CB"];
    }
    default: {
      return [...rankedModesShort];
    }
  }
}

export function isOneModeTournamentOf(
  tournament: Pick<Tournament, "mapPickingStyle">
) {
  return modesIncluded(tournament).length === 1
    ? modesIncluded(tournament)[0]!
    : null;
}

export function HACKY_resolvePicture(event: TournamentLoaderData["event"]) {
  if (event.name.includes("In The Zone"))
    return "https://abload.de/img/screenshot2023-04-19a2bfv0.png";

  return "https://abload.de/img/screenshot2022-12-15ap0ca1.png";
}

// hacky because db query not taking in account possibility of many start times
// AND always assumed check-in starts 1h before
export function HACKY_resolveCheckInTime(
  event: Pick<TournamentLoaderData["event"], "startTime">
) {
  return databaseTimestampToDate(event.startTime - 60 * 60);
}

export function mapPickCountPerMode(event: TournamentLoaderData["event"]) {
  return isOneModeTournamentOf(event)
    ? TOURNAMENT.COUNTERPICK_ONE_MODE_TOURNAMENT_MAPS_PER_MODE
    : TOURNAMENT.COUNTERPICK_MAPS_PER_MODE;
}

export function checkInHasStarted(
  event: Pick<TournamentLoaderData["event"], "startTime">
) {
  return HACKY_resolveCheckInTime(event).getTime() < Date.now();
}

export function checkInHasEnded(
  event: Pick<TournamentLoaderData["event"], "startTime">
) {
  return databaseTimestampToDate(event.startTime).getTime() < Date.now();
}

export function validateCanCheckIn({
  event,
  team,
}: {
  event: Pick<TournamentLoaderData["event"], "startTime">;
  team: FindTeamsByTournamentId[number];
}) {
  validate(checkInHasStarted(event), "Check-in has not started yet");
  validate(
    team.members.length >= TOURNAMENT.TEAM_MIN_MEMBERS_FOR_FULL,
    "Team does not have enough members"
  );
  validate(
    team.mapPool && team.mapPool.length > 0,
    "Team does not have a map pool"
  );

  return true;
}