import mongoose, { Document, Schema } from 'mongoose';
import bcrypt from 'bcrypt';

export interface IUser extends Document {
  email: string;
  password: string;
  refreshToken: string | null;
  createdAt: Date;
  updatedAt: Date;
  comparePassword(candidatePassword: string): Promise<boolean>;
}

const userSchema = new Schema<IUser>(
  {
    email: {
      type: String,
      required: true,
      unique: true,
      lowercase: true,
      trim: true,
    },
    password: {
      type: String,
      required: true,
      minlength: 6,
    },
    refreshToken: {
      type: String,
      default: null,
    },
  },
  {
    timestamps: true,
  }
);

userSchema.pre('save', async function (next) {
  if (!this.isModified('password')) return next();

  const salt = await bcrypt.genSalt(10);
  this.password = await bcrypt.hash(this.password, salt);
  next();
});

userSchema.methods.comparePassword = async function (
  candidatePassword: string
): Promise<boolean> {
  return bcrypt.compare(candidatePassword, this.password);
};

userSchema.methods.toJSON = function () {
  const obj = this.toObject();
  delete obj.password;
  delete obj.refreshToken;
  return obj;
};

const User = mongoose.model<IUser>('User', userSchema);

export default User;