module.exports = mongoose => {
    var editHistorySchema = mongoose.Schema({
        employee: String,
        date: Date
      });
    
    var schema = mongoose.Schema(
        {
          customer_id: String,
          customer_name: String,
          date: String,
          has_lunch: Boolean,
          create_by: String,
          create_date: Date,
          edit_history: [{
            type: editHistorySchema
          }], 
          site: Number
        },
        { collection: 'lunch', timestamps: true }
      );
    schema.method("toJSON", function() {
        const { __v, _id, ...object } = this.toObject();
        object.id = _id;
        return object;
      });
    const Lunch = mongoose.model("lunch", schema);
    return Lunch;
  };