import React from "react"
import { AsyncStorage } from "react-native"

import aerodynamicsQuestions from "../data/aerodynamics"
import firstAidQuestions from "../data/firstAid"
import flightSafetyQuestions from "../data/flightSafety"
import instrumentsQuestions from "../data/instruments"
import legislationQuestions from "../data/legislation"
import materialsQuestions from "../data/materials"
import meteorologyQuestions from "../data/meteorology"
import physiopathologyQuestions from "../data/physiopathology"
import pilotingTechniquesQuestions from "../data/pilotingTechniques"

import { examScheme } from "../components/Variables"

let tmpQuestions = []

const allQuestions = {
  aerodynamics: aerodynamicsQuestions,
  firstAid: firstAidQuestions,
  flightSafety: flightSafetyQuestions,
  instruments: instrumentsQuestions,
  legislation: legislationQuestions,
  materials: materialsQuestions,
  meteorology: meteorologyQuestions,
  physiopathology: physiopathologyQuestions,
  pilotingTechniques: pilotingTechniquesQuestions
}

const generateQuestions = () => {

  AsyncStorage.getItem('setupData').then((value) => {
    let setupData = {}

    if(!value) {
      setupData = {
        randomQuestions: true,
        excludeDelta: false
      }
      AsyncStorage.setItem('setupData', JSON.stringify(setupData))
    } else {
      setupData = JSON.parse(value)
    }

    examScheme.forEach( (elem) => {
      let currentSection = setupData.excludeDelta ? allQuestions[elem.section].filter(item => !item.delta) : allQuestions[elem.section]
      for(let i=0; i<elem.questions; i++) {
        const currentIndex = Math.floor(Math.random() * currentSection.length)
        tmpQuestions.push(currentSection[currentIndex])
        currentSection = currentSection.filter( (item, index) => index != currentIndex)
      }
    })

  }).done()

}

generateQuestions()

export const examQuestions = tmpQuestions