import { FieldOptions } from "../interfaces/field.options.interface"; 
import * as firebase from "firebase/app";

export function Field(options?: FieldOptions): any {
  return (target: any, key: string) => {
    let val: any;
    if (!target.requiredFields) {
      target.requiredFields = new Array();
    }
    
    if (!target.aliasFieldsMapper) {
      target.aliasFieldsMapper = {};
    }
    
    if (!target.textIndexingFields) {
      target.textIndexingFields = {};
    }
    
    if (!target.fields) {
      target.fields = {}; 
    }
    if (!target.ignoredFields) {
      target.ignoredFields = []; 
    }
    if (!target.internalFields) {
      target.internalFields = []; 
    }
    if(options && options.field_name){
      target.aliasFieldsMapper[key] = options.field_name;
    }
    
    
    target.fields[key] = options;

    if (options && options.is_required) {
      target.requiredFields.push(key);
    }
    var field_name =
    options && options.field_name ? options.field_name : key;

    if (!target.storedFields) {
      target.storedFields = [];
    }
    target.storedFields.push(field_name);

    if(options && options.is_text_indexing){
      target.textIndexingFields[key] = key;
      target['storedFields'].push('text_index_' + field_name );
      target['ignoredFields'].push('text_index_' + field_name );
    }

      var update = Object.defineProperty(target, key, {
        configurable: true,
        enumerable: true,
      /*  writable: true, */
        set : function (value){
          this['data'][this.getFieldName(key)] = value;
          if(this.textIndexingFields[key]){
            this['data']['text_index_' + this.getFieldName(key) ] = this.parseTextIndexingFields(value + '');
          }
        },
        get : function () {
            return typeof this['data'][this.getFieldName(key)] === undefined ? undefined : this['data'][this.getFieldName(key)];
        },  
    });
     // If the update failed, something went wrong
     if (!update) {
     //Kill everything
      throw new Error("Unable to update property");
     }

  return target;
  };
}