import mongoose from 'mongoose';

const FitnessGoalSchema = new mongoose.Schema(
  {
    username: { type: String, required: true, unique: true },
    weeklyWorkouts: { type: Number, required: true, default: 4, min: 1, max: 14 },
    sex: { type: String, enum: ['male', 'female'], default: 'male' },
    heightCm: { type: Number, min: 100, max: 250 },
    birthYear: { type: Number, min: 1900, max: 2020 },
    activityLevel: { type: String, enum: ['sedentary', 'light', 'moderate', 'very_active'], default: 'light' },
    dailyCalories: { type: Number, min: 500, max: 10000 },
    proteinMode: { type: String, enum: ['fixed', 'per_kg'] },
    proteinTarget: { type: Number, min: 0 },
    fatPercent: { type: Number, min: 0, max: 100 },
    carbPercent: { type: Number, min: 0, max: 100 },
  },
  { timestamps: true }
);

interface IFitnessGoal {
  username: string;
  weeklyWorkouts: number;
  sex?: 'male' | 'female';
  heightCm?: number;
  birthYear?: number;
  activityLevel?: 'sedentary' | 'light' | 'moderate' | 'very_active';
  dailyCalories?: number;
  proteinMode?: 'fixed' | 'per_kg';
  proteinTarget?: number;
  fatPercent?: number;
  carbPercent?: number;
}

let _model: mongoose.Model<IFitnessGoal>;
try { _model = mongoose.model<IFitnessGoal>("FitnessGoal"); } catch { _model = mongoose.model<IFitnessGoal>("FitnessGoal", FitnessGoalSchema); }
export const FitnessGoal = _model;