import React, {useEffect, useState } from 'react';

import {ProfileHeader} from "../../components/ProfileHeader/ProfileHeader";
import {ProfileBreadcrumbs} from "../../components/ProfileBreadcrumbs/ProfileBreadcrumbs"
import {Footer} from "../../components/Footer/Footer";
import {Link, Navigate, useNavigate} from "react-router-dom";
import { Navigation } from '../../components/Navigation/Navigation';
import {apiRequest} from "../../api/request";
import {useSelector} from "react-redux";

import { getPartnerRequestInfo } from '../../redux/outstaffingSlice'

import arrowDown from "../../images/selectArrow.png"
import processImg from "../../images/partnerAddRequestFirstImg.png"
import reportImg from "../../images/partnerAddRequestSecondImg.png"
import documentsImg from "../../images/partnerAddRequestThirdInfo.png"
import deleteIcon from "../../images/close.png"


import './partnerAddRequest.scss'

export const PartnerAddRequest = () => {
    if(localStorage.getItem('role_status') !== '18') {
        return <Navigate to="/profile" replace/>
    }

    const partnerRequestInfo = useSelector(getPartnerRequestInfo);
    const currentUrl = useState(window.location.pathname)
    const navigate= useNavigate();
    const [skills, setSkills] = useState([])
    const [filteredSkills, setFilteredSkills] = useState([])
    const [specializationList, setSpecializationList] = useState([])
    const [levelList, setLevelList] = useState([])
    const [countList] = useState([1, 2, 3, 4, 5])
    const [openSkillsSelect, setOpenSkillsSelect] = useState(false)
    const [openSpecializationList, setOpenSpecializationListOpen] = useState(false)
    const [openLevelList, setOpenLevelList] = useState(false)
    const [openCountList, setOpenCountList] = useState(false)
    const [editRequest, setEditRequest] = useState(false)
    const [selectedSkills, setSelectedSkills] = useState([])
    const [selectedSpecialization, setSelectedSpecialization] = useState('Выберите специализацию')
    const [selectedLevel, setSelectedLevel] = useState('Выберите уровень')
    const [selectedCount, setSelectedCount] = useState('Выберите кол-во сотрудников')
    const [inputs, setInputs] = useState({title: '', description: ''})

    if (currentUrl[0] === "/profile/edit-request" && !Object.keys(partnerRequestInfo).length) {
        return <Navigate to="/profile/requests" replace/>
    }

    useEffect(() => {
        apiRequest(`/profile/positions-list`).then((el) => setSpecializationList(el))
        apiRequest(`/profile/level-list`).then((el) => setLevelList(el))
        apiRequest(`/skills/get-skills-list`).then((el) => {
            setSkills(el)
            setFilteredSkills(el)
        })
    }, [])

    useEffect(() => {
        if (currentUrl[0] === "/profile/edit-request" && Object.keys(partnerRequestInfo).length) {
            setInputs({title: partnerRequestInfo.title, description: partnerRequestInfo.descr})
            setSelectedSpecialization(partnerRequestInfo.position)
            setSelectedLevel({name: partnerRequestInfo.level, id: partnerRequestInfo.knowledge_level_id})
            setSelectedCount(partnerRequestInfo.specialist_count)
            setSelectedSkills(partnerRequestInfo.skills)
            setEditRequest(true)
        }
    }, [])

    const disableBtn = () => {
        if (!inputs.title ||
            typeof selectedSpecialization === "string" ||
            typeof selectedLevel === "string" ||
            typeof selectedCount === "string" ||
            !inputs.description ||
            !selectedSkills.length) {
            return false
        }
        return true
    }

    const handler = () => {
        if (currentUrl[0] === "/profile/edit-request") {
            apiRequest('/request/update-request', {
                method: 'PUT',
                data: {
                    user_id: localStorage.getItem('id'),
                    request_id: partnerRequestInfo.id,
                    title: inputs.title,
                    position_id: selectedSpecialization.id,
                    knowledge_level_id: selectedLevel.id,
                    specialist_count: selectedCount,
                    status: 1,
                    descr: inputs.description,
                    skill_ids: selectedSkills.map((skill) => {return skill.id})
                }
            }).then((res) => {
                navigate('/profile/requests');
            })
        } else {
            apiRequest('/request/create-request', {
                method: 'POST',
                data: {
                    user_id: localStorage.getItem('id'),
                    title: inputs.title,
                    position_id: selectedSpecialization.id,
                    knowledge_level_id: selectedLevel.id,
                    specialist_count: selectedCount,
                    status: 1,
                    descr: inputs.description,
                    skill_ids: selectedSkills.map((skill) => {return skill.id})
                }
            }).then((res) => {
                navigate('/profile/requests');
            })
        }
    }


    return (
        <div className='partnerAddRequest'>
            <ProfileHeader />
            <Navigation />
            <div className='container'>
                <ProfileBreadcrumbs links={[
                    {name: 'Главная', link: '/profile'},
                    {name: 'Запросы и открытые позиции', link: '/profile/requests'},
                    {name: `${editRequest ? 'Редактирование заявки' : 'Создание новой заявки'}`, link: '/profile/add-request'}
                ]}
                />
                <h2 className='partnerAddRequest__title'>{editRequest ? 'Страница редактирования заявки' : 'Страница добавления заявки'}</h2>
                <div className='partnerAddRequest__section'>
                    <div className='partnerAddRequest__form'>
                        <div className='partnerAddRequest__form__block form__block'>
                            <h3 className='form__block__title'>Данные открытой позиции</h3>
                            <div className='form__block__section'>
                                <h3>Название вакансии</h3>
                                <div className='form__block__section__input'>
                                    <input value={inputs.title} onChange={e => setInputs((prevValue) => ({...prevValue, title: e.target.value}) )} type='text' placeholder='Вакансия'/>
                                </div>
                            </div>
                            <div className='form__block__section'>
                                <h3>Выберите специализацию</h3>
                                <div className='form__block__section__selects' onClick={() => {setOpenSpecializationListOpen(!openSpecializationList)}}>
                                    <div className='form__block__section__select'>
                                        <span>{typeof selectedSpecialization === "string" ? selectedSpecialization : selectedSpecialization.name}</span>
                                        <img className={openSpecializationList ? 'rotate' : ''} src={arrowDown} />
                                    </div>
                                </div>
                                {openSpecializationList && Boolean(specializationList.length) &&
                                    <div className='form__block__dropDown'>
                                        {specializationList.map((specialization, index) => {
                                            return <p
                                                key={specialization.id}
                                                onClick={() => {
                                                    setOpenSpecializationListOpen(false)
                                                    setSelectedSpecialization(specialization)
                                                }}
                                            >
                                                            {specialization.name}</p>
                                        })}
                                    </div>
                                }
                            </div>
                            <div className='form__block__section'>
                                <h3>Навыки</h3>
                                <div className='form__block__skills' onClick={() => {setOpenSkillsSelect(true)}}>
                                    {Boolean(selectedSkills.length) &&
                                        selectedSkills.map((skill, index) => {
                                            return<div className='skill' key={`selected-${skill.id}`}>
                                                <span >{skill.name}</span>
                                                <img src={deleteIcon} alt='delete'
                                                     onClick={() => {
                                                         setSkills(prevArray => [...prevArray, skill])
                                                         setFilteredSkills(prevArray => [...prevArray, skill])
                                                         setSelectedSkills(selectedSkills.filter((skill, indexSkill) => {
                                                             return indexSkill !== index
                                                         }))
                                                    }} />
                                            </div>
                                        })
                                    }
                                    <input type='text' placeholder='Выберите навыки'
                                           onChange={(e) => {
                                               setFilteredSkills(skills.filter((skill) => {
                                                   return skill.name.toLowerCase().includes(e.target.value.toLowerCase())
                                               }))
                                           }} />
                                </div>
                                {openSkillsSelect && Boolean(filteredSkills.length) &&
                                    <div className='form__block__dropDown'>
                                        {filteredSkills.map((skill, index) => {
                                            return <span
                                                key={skill.id}
                                                onClick={() => {
                                                    setSelectedSkills(prevArray => [...prevArray, skill])
                                                    setFilteredSkills(filteredSkills.filter((skill, skillIndex) => {
                                                        return skillIndex !== index
                                                    }))
                                                    setSkills(skills.filter((initSkill) => {
                                                        return initSkill.id !==skill.id
                                                    }))
                                                    setOpenSkillsSelect(false)
                                                }}
                                            >
                                                        {skill.name}</span>
                                        })}
                                    </div>
                                }
                            </div>
                        </div>
                        <div className='partnerAddRequest__form__block form__block'>
                            <h3 className='form__block__title'>Квалификация</h3>
                            <div className='form__block__section'>
                                <h3>Выберите уровень знаний </h3>
                                <div className='form__block__section__select' onClick={() => setOpenLevelList(!openLevelList)}>
                                    <span>{typeof selectedLevel === "string" ? selectedLevel : selectedLevel.name}</span>
                                    <img className={openLevelList ? 'rotate' : ''} src={arrowDown} />
                                </div>
                                {openLevelList && Boolean(Object.values(levelList).length) &&
                                    <div className='form__block__dropDown'>
                                        {Object.values(levelList).map((level, index) => {
                                            return <p
                                                key={level}
                                                onClick={() => {
                                                    setOpenLevelList(false)
                                                    setSelectedLevel({name: level, id: index + 1})
                                                }}
                                            >
                                                {level}</p>
                                        })}
                                    </div>
                                }
                            </div>
                            <div className='form__block__section'>
                                <h3>Введите необходимое описание</h3>
                                <textarea value={inputs.description} onChange={e => setInputs((prevValue) => ({...prevValue, description: e.target.value}) )}/>
                            </div>
                            <div className='form__block__section'>
                                <h3>Необходимое количество человек на позицию</h3>
                                <div className='form__block__section__select' onClick={() => setOpenCountList(true)}>
                                    <span>{selectedCount}</span>
                                    <img className={openCountList ? 'rotate' : ''} src={arrowDown} />
                                </div>
                                {openCountList &&
                                <div className='form__block__dropDown'>
                                    {countList.map((count) => {
                                        return <p
                                            key={count}
                                            onClick={() => {
                                                setOpenCountList(false)
                                                setSelectedCount(count)
                                            }}
                                        >
                                            {count}</p>
                                    })}
                                </div>
                                }
                            </div>
                            <div className='form__block__buttons'>
                                <Link to='/profile/requests' className='form__block__cancel'>Отмена</Link>
                                <button onClick={() => handler()} className={disableBtn() ? 'form__block__save' : 'form__block__save disable'}>Сохранить</button>
                            </div>
                        </div>
                    </div>
                    <div className='partnerAddRequest__info'>
                        <div className='partnerAddRequest__info__block'>
                            <div className='partnerAddRequest__info__block__title'>
                                <img src={processImg} alt='process' />
                                <h4>Процесс:</h4>
                            </div>
                            <p>
                                При аутстафе мы предоставляем вам
                                it-специалистов при этом они находятся в
                                нашем штате.
                                <br/><br/>
                                Вы сможете прособеседовать наших
                                специалистов, посмотреть проекты и Git.
                            </p>
                        </div>
                        <div className='partnerAddRequest__info__block'>
                            <div className='partnerAddRequest__info__block__title'>
                                <img src={reportImg} alt='reportImg' />
                                <h4>Отчетность:</h4>
                            </div>
                            <p>
                                Вы можете обратиться к специалисту
                                напрямую.
                                <br/><br/>
                                Каждый день специалисты описывают
                                выполненные работы и затраченные
                                на это часы.
                                <br/><br/>
                                Можем выделить руководителя проекта
                                и тестировщиков.
                            </p>
                        </div>
                        <div className='partnerAddRequest__info__block'>
                            <div className='partnerAddRequest__info__block__title'>
                                <img src={documentsImg} alt='documentsImg' />
                                <h4>Обмен <br/>документами:</h4>
                            </div>
                            <p>
                                В Личном кабинете платформы
                                получайте отчеты выполненных работ
                                и счета на согласование и оплату
                            </p>
                        </div>
                    </div>
                </div>
            </div>
            <Footer />
        </div>
    )
}