model/battleSetup.model.ts

import { HeroBattleConfig } from "@/types";
import { Schema, Document, models, model, Model } from "mongoose";

// Define an interface for our document to ensure type safety.
// This matches the BattleSetup type from types/index.ts
export interface IBattleSetup extends HeroBattleConfig, Document {
  createdAt: Date;
}

// REFACTOR: Instead of a single JSON string, we define the schema's structure.
// This leverages Mongoose's validation, prevents JSON parsing errors,
// and makes the data more robust and queryable.
const BattleSetupSchema = new Schema({
  type: {
    type: String,
    required: true,
    enum: ["HERO_BATTLE", "CUSTOM_BATTLE"],
  },
  // We use Schema.Types.Mixed for the config object because its structure
  // depends on the `type` field. Mongoose will store the object directly.
  config: {
    type: Schema.Types.Mixed,
    required: true,
  },
  createdAt: {
    type: Date,
    default: Date.now,
  },
});

// Use a type-safe model definition.
const BattleSetupModel: Model<IBattleSetup> =
  models.BattleSetup || model<IBattleSetup>("BattleSetup", BattleSetupSchema);

export default BattleSetupModel;