import React, {useState} from 'react'
import {useSelector} from 'react-redux'
import {Link} from 'react-router-dom'

import {Loader} from '../Loader/Loader'
import {currentMonthAndDay} from '../Calendar/calendarHelper'
import {Footer} from "../Footer/Footer";
import {ProfileHeader} from "../ProfileHeader/ProfileHeader";

import {useRequest} from "../../hooks/useRequest";

import {getReportDate} from '../../redux/reportSlice'

import calendarIcon from '../../images/calendar_icon.png'
import ellipse from '../../images/ellipse.png'
import remove from '../../images/remove.png'
import addIcon from '../../images/addIcon.png'
import arrow from "../../images/right-arrow.png";

import './reportForm.scss'


const getCreatedDate = (day) => {
  if (day) {
    return `${new Date(day).getFullYear()}-${new Date(day).getMonth() + 1}-${new Date(day).getDate()}`
  } else {
    const date = new Date();
    const dd = String(date.getDate()).padStart(2, '0');
    const mm = String(date.getMonth() + 1).padStart(2, '0');
    const yyyy = date.getFullYear();
    return `${yyyy}-${mm}-${dd}`
  }
};

const ReportForm = () => {
  const reportDate = useSelector(getReportDate);

  const {apiRequest} = useRequest();
  const [isFetching, setIsFetching] = useState(false);
  const [reportSuccess, setReportSuccess] = useState(false);

  const [inputs, setInputs] = useState([{task: '', hours_spent: '', minutes_spent: 0}]);
  const [troublesInputValue, setTroublesInputValue] = useState('');
  const [scheduledInputValue, setScheduledInputValue] = useState('');

  const addInput = () => {
    setInputs((prev) => [...prev, {task: '', hours_spent: '', minutes_spent: 0}])
  };

  const totalHours = inputs.reduce((a, b) => a + b.hours_spent, 0);

  const deleteInput = (indexRemove) => {
    if (indexRemove !== 0) {
      setInputs((prev) => prev.filter((el, index) => index !== indexRemove))
    }
  };

  const handler = () => {
    apiRequest('/reports/create', {
      method: 'POST',
      body: {
        tasks: inputs,
        difficulties: troublesInputValue,
        tomorrow: scheduledInputValue,
        created_at: getCreatedDate(reportDate),
        status: 1,
      },
    }).then((res) => {
      if (res.status === 200) {
        setReportSuccess(true);
        setTimeout(() => setReportSuccess(false), 2000)
      }
      setInputs(() => []);
      setTroublesInputValue('');
      setScheduledInputValue('');
      setIsFetching(false);
      setInputs(() => [{task: '', hours_spent: '', minutes_spent: 0}]);
    })
  };

  return (
      <section className='report-form'>
        <ProfileHeader/>
        <div className='container'>
          <h2 className='summary__title'>Ваши отчеты - <span>добавить отчет</span></h2>
          <div>
            <div className='report__head'>
              <Link className='calendar__back' to={`/profile/calendar`}>
                <img src={arrow} alt=''/><p>Вернуться</p>
              </Link>
            </div>
          </div>

          <div className='report-form__content'>
            <div className='report-form__block'>
              <div className='report-form__block-title'>
                <h2>Добавление отчета за день</h2>
                <h3>Дата заполнения отчета:</h3>
              </div>
              <div className='report-form__block-img'>
                <img
                    className='report-form__calendar-icon'
                    src={calendarIcon}
                    alt=''
                />
                {/*{currentMonthAndDayReportPage()}*/}
                {reportDate ? currentMonthAndDay(reportDate) : getCreatedDate()}
              </div>
              <div className='report-form__task-list'>
                <img src={ellipse} alt=''/>
                <span>Какие задачи были выполнены?</span>
              </div>
            </div>

            <div className='row'>
              <div className='col-8'>
                <div className='report-form__task-header'>
                  <p className='report-form__task-title--description'>
                    Краткое описание задачи
                  </p>
                  <p className='report-form__task-title--hours'>Количество часов</p>
                </div>

                {inputs.map((input, index) => {
                  return (
                      <form id={'input'} key={`input__${index}`} className='report-form__task-form'>
                        <div className='report-form__task-number'>
                          {index + 1}.
                        </div>
                        <div className='report-form__task-input report-form__task-input--description'>
                          <input name='text' type='text' onChange={e => setInputs(inputs.map((input, inputIndex) => {
                            return index === inputIndex
                                ? {
                                  ...input,
                                  task: e.target.value
                                }
                                : input
                          }))}/>
                        </div>
                        <div className='report-form__task-input report-form__task-input--hours'>
                          <input name='number' type='number' min='1'
                                 onChange={e => setInputs(inputs.map((input, inputIndex) => {
                                   return index === inputIndex
                                       ? {
                                         ...input,
                                         hours_spent: Number(e.target.value)
                                       }
                                       : input
                                 }))}/>
                        </div>
                        <div className='report-form__task-remove'>
                          <img onClick={() => deleteInput(index)} src={remove} alt=''/>
                        </div>
                      </form>
                  )
                })}

                <div className='report-form__form-add'>
                  <img onClick={addInput} src={addIcon} alt=''/>
                  <span>Добавить еще </span>
                </div>
              </div>
              <div className='col-4'></div>
            </div>

        <div className='row'>
          <div className='col-12'>
            <div className='report-form__input-box'>
              <div className='report-form__troubles'>
                <img src={ellipse} alt=''/>
                <span>Какие сложности возникли?</span>
              </div>
              <input type='text' value={troublesInputValue} onChange={e => setTroublesInputValue(e.target.value)}/>
              <div className='report-form__scheduled'>
                <img src={ellipse} alt=''/>
                <span>Что планируется сделать завтра?</span>
              </div>
              <input type='text' value={scheduledInputValue} onChange={e => setScheduledInputValue(e.target.value)}/>
            </div>
          </div>
        </div>
        <div className='row'>
          <div className='col-12'>
            <div className='report-form__footer'>
              <button className='report-form__footer-btn' onClick={() => handler()}>
                {isFetching ? <Loader/> : 'Отправить'}
              </button>
              <p className='report-form__footer-text'>
                Всего за день : <span>{totalHours} часов</span>
              </p>
              {reportSuccess &&
              <p className='report-form__footer-done'>Отчет отправлен</p>
              }
            </div>
          </div>
            </div>
          </div>
        </div>
        <Footer/>
      </section>
  )
};

export default ReportForm