// console.log(new Date())
// function dateToDateTimeLocal(data){
// // получить timeStamp
// // offset
// //  new Date Математика с этим timestamp
// // toISOString без последней буквы
// // return "2021-12-07"
// let timestamp = data.getTime();
// let offsetInMS = data.getTimezoneOffset() * 60 * 1000;
// let offsetDate = new Date (timestamp - offsetInMS);
// return offsetDate.toISOString().slice(0,-1);

// // return (new Date(data.getTime()- data.getTimezoneOffset()*60000)).toISOString().slice(0, -1)

// }
// console.log(dateToDateTimeLocal(new Date()))




function Form(el, data, okCallback, cancelCallback, url){
    let formBody = document.createElement('div')
    formBody.classList.add("wrapper");
    let okButton = document.createElement('button')
    okButton.className = "ok";
    okButton.innerHTML = 'OK'
    okButton.disabled = true;

    let cancelButton = document.createElement('button')
    cancelButton.innerHTML = 'Cancel'

    let inputCreators = {
        String(key, value, oninput){
            let stringWrapper = document.createElement("div")
            stringWrapper.className = "stringWrapper";
            let err = document.createElement("p");
            err.className = 'error';
            let input = document.createElement('input')
            input.type = 'text'
            input.placeholder = key[0] === "*" ? key.slice(1) : key;
            input.value       = value.split("").some((item)=>item !== "*")   ?  value : "" ;
            input.className = value.split("").every((item)=>item === "*") ? "password" : "";
            input.oninput     = () => oninput(input, input.value)
            stringWrapper.appendChild(input);
            stringWrapper.appendChild(err)
            if (key[0] === "*"){
                const mandatory = document.createElement('p');
                mandatory.className = "mandatory";
                mandatory.innerText = '*';
                stringWrapper.prepend(mandatory)
            }

            return stringWrapper
        },
        Array(key, value, oninput){
            let stringWrapper = document.createElement("div")
            stringWrapper.className = "stringWrapper";
            let err = document.createElement("p");
            err.className = 'error';
            let input = document.createElement('input')
            input.type = 'text'
            input.placeholder = key[0] === "*" ? key.slice(1) : key;
            input.value       = value;
            input.oninput     = () => oninput(input, input.value)
            stringWrapper.appendChild(input);
            stringWrapper.appendChild(err)
            return stringWrapper
        },
        Boolean(key, value, oninput){
            let wrap = document.createElement('div');
            wrap.className = 'checkBoxWrapper';
            let p = document.createElement('p');
            p.innerText = key;
            let input = document.createElement('input');
            input.type = 'checkbox';
            input.placeholder = key;
            input.checked = value;
            input.onchange = () => oninput(input, input.checked); 
            
            //label for с input type='checkbox' внутри
            wrap.appendChild(p)
            wrap.appendChild(input)
            return wrap
        },
        Date(key, value, oninput){
            let input = document.createElement('input')
            input.type = 'date';
            input.placeholder = key;
            input.value = value;
            input.onchange = () => oninput(input, input.value); 
            return input 
             //используйте datetime-local
        },
        //и др. по вкусу, например textarea для длинных строк
    }

    for(const [key,value]of Object.entries(data)){
                
        let input = inputCreators[value.constructor.name](key, value, (currentInput, newValue) => {
            const isValid = this.validators[key] && this.validators[key](newValue, key, data, currentInput);
            if (isValid === undefined){
                data[key] = newValue;
            }
            if (currentInput.type === "checkbox"){
                data[key] = newValue;
            }
            if (key[0] === "*" && newValue.length || isValid=== true){
                data[key] = newValue;
                markInputAsValid(currentInput)
            }
            if(isValid && isValid.length > 0 && newValue.length){
                markInputAsInValid(currentInput, isValid)
            }
            if (!newValue.length && key[0] === "*"){
                currentInput.nextSibling.innerText = "Necessary field";
                currentInput.style.backgroundColor = "pink";
            }
            if (data['*password'] && (!data['*password'].length || data['*password'].split("").every((item)=>item === "*"))){
            }
            if((key === "*password" || key === "*repeatePassword") && data["*password"].length && isValid===true){
                const passwordsArray = Array.from(document.querySelectorAll('.password'));
                passwordsArray.forEach((item)=>{
                    markInputAsValid(item);
                })
            } else {
                if  ((key === "*password" || key === "*repeatePassword") && data["*password"].length && isValid !== true){
                    const passwordsArray = Array.from(document.querySelectorAll('.password'));
                    markInputAsValid(passwordsArray[0])
                    markInputAsInValid(passwordsArray[1], isValid)
                }
            }
            checkAllFormValidation(formBody);
        });
        formBody.appendChild(input);
    }
    if (typeof okCallback === 'function'){
        formBody.appendChild(okButton);
        okButton.onclick = (e) => {
            console.log(data);
            this.savedData = this.data;
            // console.log(this)
            url ? localStorage.setItem(url, JSON.stringify(this.savedData)) : localStorage.setItem('defaultForm', this.savedData);
            console.log(JSON.parse(localStorage.getItem(url))); 
            this.okCallback(this.data)
        }
    }

    if (typeof cancelCallback === 'function'){
        formBody.appendChild(cancelButton);
        cancelButton.onclick = () => {
            this.data = {...this.savedData};
            Array.from(formBody.querySelectorAll('input')).forEach(input => {
                input.value = this.savedData[input.placeholder] ? this.savedData[input.placeholder] : this.savedData[`*${input.placeholder}`];
                input.value = input.value.split('').every(char => char === "*") ? "" : input.value;  
                if(input.type === 'checkbox'){
                    input.checked = input.value;
                }           
            })
            cancelCallback(this.savedData);
            okButton.disabled = true;
        }
    }

    el.appendChild(formBody)


    this.okCallback     = okCallback
    this.cancelCallback = cancelCallback

    this.data           = data
    this.validators     = {}
    this.savedData = {...data}
    this.url = url
}


let form = new Form(formContainer, {
    '*name': 'Anakin',
    surname: 'Skywalker',
    '*password': '******',
    '*repeatePassword': '******',
    married: true,
    birthday: new Date((new Date).getTime() - 86400000 * 30*365)
}, (data) => console.log(data),(data) => console.log(data) )

form.validators.surname = validateName;
form.validators['*name'] = validateName;
form.validators['*password'] = validatePassword;
form.validators['*repeatePassword'] = validatePassword;


function validateName(value, key, data, input){
    return value.length > 2 && 
            value[0].toUpperCase() == value[0] &&
            !value.includes(' ') ? true : 'Wrong name';
}

function validatePassword(value, key, data, input){
    const passwordsArray = Array.from(document.querySelectorAll('.password'));
    return (passwordsArray[0].value === passwordsArray[1].value && passwordsArray[0].value.length > 4 ) ? true : "Password should be similar and 5 or more characters"
}

function markInputAsValid(currentInput){
    currentInput.style.backgroundColor = "";
    currentInput.nextSibling.innerText = '';
}
function markInputAsInValid(currentInput, isValid){
    currentInput.style.backgroundColor = "red";
    currentInput.nextSibling.innerText = isValid;
}

function checkAllFormValidation(wrapper){
    const errors = Array.from(wrapper.querySelectorAll('.error'));
    const okButton = wrapper.querySelector('.ok');
    const isFormValidated = errors.every(error => {
            return error.innerText === '';
    })
    const mandatory = Array.from(wrapper.querySelectorAll('.mandatory'));
    const isFormFilled = mandatory.every(mandatoryItem => {
        return mandatoryItem.nextSibling.value.length;
})
    okButton.disabled = !isFormValidated || !isFormFilled;
}

function createFormFromApi(url){
    if (localStorage[url]){
        new Form(formContainer, JSON.parse(localStorage[url]), (data) => console.log(data),(data) => console.log(data), url)
    } else {
        fetch(url)
        .then(res => res.json())
        .then(character => {
        new Form(formContainer, character, (data) => console.log(data),(data) => console.log(data), url)
        })
    }
}

createFormFromApi('https://swapi.dev/api/people/1/'); 
createFormFromApi('https://swapi.dev/api/people/2/');