//Number: temperature 
let fahrenheit = x => x * 1.8 + 32 // функция конвертации из цельсия в фарингейты
console.log(fahrenheit(20))//68 градусов по фарингейту



//Flats
let flats = (apartmentNumber,floorNumber,numberApartmentsFloor)=>{
    let sumApartments = floorNumber*numberApartmentsFloor// здесь мы узнаем сколько квартир в подьезде
    let entrance = Math.ceil(apartmentNumber/sumApartments)//номер подьезда
    let floor = Math.ceil((apartmentNumber%sumApartments)/numberApartmentsFloor)//номер этажа
    return {entrance,floor}
}
console.log(flats(65,9,4))//{entrance: 2, floor: 8}


//Credentials
{
    let credentials = ()=>{
        let name = prompt("Введите имя").trim().toLowerCase();
        let surname = prompt("Введите фамилию").trim().toLowerCase();
        let fatherName = prompt("Введите отчество").trim().toLowerCase();
        name = name[0].toUpperCase()+name.slice(1);
        surname = surname[0].toUpperCase()+surname.slice(1);
        fatherName = fatherName[0].toUpperCase()+fatherName.slice(1);
        fullName = name+' '+surname+' '+fatherName
        return {name,surname,fatherName,fullName} 
    }
    console.log(credentials())
}



//New line
{
    let newLine = (str)=>{
        let result = (str.split('\\n').join('\n'))
        return result
    }
    console.log(newLine('1 строка \n 2 строка'))
}

//Prompt OR
{
    let promptOr = (age) => age ? alert('Вы ' +(2022 - age)+ ' года рождения!') :alert('Ошибка')
    console.log(promptOr(+prompt('Сколько вам лет?')))
}



//Login And Password
{
 let loginAndPassword = (login, pass) => login === 'admin' && pass === 'qwerty' ? console.log(true) : console.log(false)
 console.log(loginAndPassword('admin','qwerty'))//true
}



//For Table

{
   const arr = [[0,0,0,0,0],[0,1,2,3,4],[0,2,4,6,8],[0,3,6,9,12],[0,4,8,12,16]]
   let table = (array) => {
    let   str = "<table border='1'>"
    for (let currency of arr){
        str += '<tr>'
        for (let letter of currency){
            str += '<td>'+letter+'</td>'
        }
        str+= '</tr>'
    }
    str+= "</table>"
    return str
   }
   document.write(table(arr))
}

//Filter Lexics
{
    let func = (str,motherWordArr)=>{
        str = str.split(' ')
        let result = str.filter(element => motherWordArr.indexOf(element)=== -1)
        result = result.join(' ')
        return result
    }
    console.log(func('Функция должна возвращать бляха муха строку!',['бляха', 'муха', "пляха", "шабля"]))
}


//Currency Table
{
    let func = ()=>{
        fetch('https://open.er-api.com/v6/latest/USD').then(res => res.json())
        .then(data => {
        let dataObj = data.rates
        let arrValues = Object.values(dataObj)
        let arrKeys = Object.keys(dataObj)
        let arrData  = []
        let i = 0
        for(let valuesEl of arrValues){
            arrData.push(arrValues.map(x=>(valuesEl/x).toFixed(3)))
            arrData[i].unshift(arrKeys[i])
            i++
        }
        arrKeys.unshift('')
        arrData.unshift(arrKeys)
        let   currencyTable = "<table border='1'>"
        for (let arrEl of arrData){
            currencyTable += '<tr>'
            for (let cell of arrEl){
                currencyTable += '<td>'+cell+'</td>'
            }
            currencyTable+= '</tr>'
        }
        currencyTable+= "</table>"
        document.write(currencyTable)
        })
    }
    console.log(func())
}


//Form
{
    let func = (obj) => {
        let keysArrCar = Object.keys(obj)
    let valuesArrCar = Object.values(obj)
    let i = 0
    let strType
    let formObjCar = '<form>\n'
    for (let a of keysArrCar){
        if (typeof valuesArrCar[i]=='string'){
            strType = 'text'
        }
        else if(typeof valuesArrCar[i]=='boolean'){
            strType = 'checkbox'
        }
        else{strType=typeof valuesArrCar[i]}
        formObjCar += '    <label>'+a+': <input type="'+strType+'" value="'+valuesArrCar[i]+'"/></label>\n'
        i++
    }
    formObjCar += '</form>'
    document.write(formObjCar)
    }


    const car = {
        "Name":"chevrolet chevelle malibu",
        "Cylinders":8,
        "Displacement":307,
        "Horsepower":130,
        "Weight_in_lbs":3504,
        "Origin":"USA",
        "in_production": false
    }

    console.log(func(car))
}


//Array of objects sort
{
    let sort = (arrObj,key,revers)=>{
        return arrObj.sort((firstEl, secondEl) =>{
            if (typeof firstEl[key] === 'string' ){
                return  revers===undefined || revers===true?firstEl[key].localeCompare(secondEl[key]):secondEl[key].localeCompare(firstEl[key])
            }
            else if (typeof firstEl[key] === 'number'){
                return  revers===undefined || revers===true?firstEl[key] - secondEl[key]:secondEl[key]-firstEl[key]
            }
        })
    }
    var persons = [
        {name: "Иван", age: 17},
        {name: "Мария", age: 35},
        {name: "Алексей", age: 73},
        {name: "Яков", age: 12},
    ]
    //console.log(sort(persons, "age"))
    console.log(sort(persons, "name",false))
}



//Table
{
    let func = (arrayObj,keyObj,revers)=>{
        let sort = (arrObj,key,revers)=>{
            return arrObj.sort((firstEl, secondEl) =>{
                if (typeof firstEl[key] === 'string' ){
                    return  revers===undefined || revers===true?firstEl[key].localeCompare(secondEl[key]):secondEl[key].localeCompare(firstEl[key])
                }
                else if (typeof firstEl[key] === 'number'){
                    return  revers===undefined || revers===true?firstEl[key] - secondEl[key]:secondEl[key]-firstEl[key]
                }
            })
        }
        let [...arrCopi] = arrayObj
        persons= sort(arrCopi,keyObj,revers)
        let i = 0
        let arrKeys = []
        for (let x of persons){
            arrKeys += Object.keys(persons[i])+','
            i++
        }
        arrKeys = arrKeys.split(',').slice(0,-1)
        const makeUniq = (arr) => {
            return arr.filter((el1, el2) => arr.indexOf(el1) === el2);
            }
        arrKeys = makeUniq(arrKeys)
        let arrValue = []
        for (let objPersons of persons){
            arrValue.push(arrKeys.map(el=>objPersons[el]===undefined?objPersons[el]=' ':objPersons[el]))
        }
        arrValue.unshift(arrKeys)
        
        let   arrTable = "<table border='1'>"
                for (let arrEl of arrValue){
                    arrTable += '<tr>'
                    for (let cell of arrEl){
                        arrTable += '<td>'+cell+'</td>'
                    }
                    arrTable+= '</tr>'
                }
                arrTable+= "</table>"
        document.write(arrTable)
    }
    const pers = [
        {
            name: 'Мария',
            fatherName: 'Ивановна',
            surname: 'Иванова',
            sex: 'female'
        },
        {
            name: 'Николай',
            fatherName: 'Иванович',
            surname: 'Иванов',
            age: 15
        },
        {
            name: 'Петр',
            fatherName: 'Иванович',
            surname: 'Иванов',
            married: true
        },
    ]
    console.log(func(pers,'surname'))
}


//Number: divide
{
    // "<input type='number' id='firstNumber' value='' />"
    // "<input type='number' id='secondNumber' value='' />"
    // "<div id='divisionResult'>"
    // "Деления нацело двух чисел"
    // "</div>"
    // <script>
    // const calcResult = () => {
    //     let result = Math.floor(firstNumber.value/secondNumber.value)
    //     divisionResult.innerHTML = result===Infinity?'Заполните два поля':'Разделено! ' + result
    //     console.log(firstNumber.value, secondNumber.value, divisionResult.innerHTML)
    // }
    
    // firstNumber.oninput = secondNumber.oninput = calcResult
    // </script>
    
}