import ApplicationAdapter from './application';
import { dasherize } from '@ember/string';

export default class MealAdapter extends ApplicationAdapter {
  async findRecord(store, model, id) {
    let result = await fetch(`${this.host}/lookup.php?i=${id}`);
    let json = await result.json();
    return normalize(json.meals[0]);
  }

  async queryRecord(store, model, query) {
    if (query === 'random') {
      let result = await fetch(`${this.host}/random.php`);
      let json = await result.json();
      return normalize(json.meals[0]);
    }
  }
}

function normalize(obj) {
  let attributes = {};

  Object.keys(obj).forEach(key => attributes[cleanKey(key)] = obj[key]);
  attributes.ingredients = groupByKeyPrefix('ingredient', attributes);

  return {
    data: {
      type: 'meal',
      id: attributes.id,
      attributes,
    },
  };
}

function cleanKey(key) {
  key = dasherize(key);
  key = key.replace('str-', '');
  if (key === 'id-meal') key = 'id';
  if (key === 'meal') key = 'name';
  return key;
}

function groupByKeyPrefix(keyPrefix, obj) {
  let resultingArray = [];
  Object.keys(obj).forEach(key => {
    let value = obj[key];
    if (!value) return;
    if (key.startsWith(keyPrefix)) resultingArray.push(value);
  });
  return resultingArray;
}