/**
 * Simulator Registry
 *
 * Maps a sport's simulatorType to the appropriate Simulator implementation.
 * Set simulatorType on the sport record in the admin UI.
 * Add new simulators here as new sports are supported.
 */

import type { Simulator } from "./types";
import { BracketSimulator } from "./bracket-simulator";
import { F1Simulator } from "./f1-simulator";
import { GolfSimulator } from "./golf-simulator";
import { UCLSimulator } from "./ucl-simulator";
import { NCAAMSimulator } from "./ncaam-simulator";
import { NCAAWSimulator } from "./ncaaw-simulator";

export type SimulatorType =
  | "f1_standings"
  | "indycar_standings"
  | "golf_qualifying_points"
  | "playoff_bracket"
  | "ucl_bracket"
  | "ncaam_bracket"
  | "ncaaw_bracket";

export interface SimulatorInfo {
  name: string;
  description: string;
}

const REGISTRY: Record<SimulatorType, { info: SimulatorInfo; create: () => Simulator }> = {
  f1_standings: {
    info: { name: "F1 Standings Model", description: "Simulates remaining races using current F1 standings and futures odds" },
    create: () => new F1Simulator(),
  },
  indycar_standings: {
    info: { name: "IndyCar Standings Model", description: "Simulates remaining races using current IndyCar standings and futures odds" },
    create: () => new F1Simulator(),
  },
  golf_qualifying_points: {
    info: { name: "Qualifying Points Model", description: "Simulates remaining majors using current QP standings and futures odds" },
    create: () => new GolfSimulator(),
  },
  playoff_bracket: {
    info: { name: "Bracket Monte Carlo", description: "Simulates playoff bracket outcomes using Elo ratings" },
    create: () => new BracketSimulator(),
  },
  ucl_bracket: {
    info: { name: "UCL Bracket Monte Carlo", description: "Simulates the UEFA Champions League 16-team knockout bracket using blended Elo + futures odds" },
    create: () => new UCLSimulator(),
  },
  ncaam_bracket: {
    info: { name: "NCAAM Bracket Monte Carlo", description: "Simulates the NCAA Men's Basketball Tournament 64-team bracket using KenPom net ratings" },
    create: () => new NCAAMSimulator(),
  },
  ncaaw_bracket: {
    info: { name: "NCAAW Bracket Monte Carlo", description: "Simulates the NCAA Women's Basketball Tournament 64-team bracket using Barttorvik Barthag ratings" },
    create: () => new NCAAWSimulator(),
  },
};

export function getSimulator(simulatorType: SimulatorType): Simulator {
  const entry = REGISTRY[simulatorType];
  if (!entry) {
    throw new Error(
      `No simulator registered for type: "${simulatorType}". ` +
      `Add a simulator to app/services/simulations/registry.ts.`
    );
  }
  return entry.create();
}

export function getSimulatorInfo(simulatorType: SimulatorType): SimulatorInfo | null {
  return REGISTRY[simulatorType]?.info ?? null;
}