import React, { useState, useEffect, useRef, useReducer } from 'react';
import Button from '@mui/material/Button';
import Dialog from '@mui/material/Dialog';
import DialogActions from '@mui/material/DialogActions';  
import DialogContent from '@mui/material/DialogContent';
import DialogContentText from '@mui/material/DialogContentText';
import DialogTitle from '@mui/material/DialogTitle';  
import PropTypes from 'prop-types';
import Box from '@mui/material/Box'; 
import SelectField from "../../Report/SelectField";   
import DatePicker from '../../Report/DatePicker'  
import TimerPickerSelect from '../TimerPickerSelect'   
import TextareaAutosize from '@mui/material/TextareaAutosize';  

import { subHours, addDays, isEqual, subDays} from "date-fns";  
import TextFieldSelectHourBefore from '@mui/material/TextField';
import MenuItem from '@mui/material/MenuItem'; 
 


import { 
  IconButton, 
  Paper,
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableRow, 
} from "@material-ui/core"; 
 
import { DeleteOutline } from "@material-ui/icons"; 
import { toast } from "react-toastify"; 
 import api from "../../../services/api"; 
import toastError from "../../../errors/toastError";
import ConfirmationModal from "../../ConfirmationModal";


const reducer = (state, action) => { 
 

  if (action.type === "LOAD_SCHEDULES") {
    const schedulesContact = action.payload;
    const newSchedules= [];

    schedulesContact.forEach((schedule) => {
      const scheduleIndex = state.findIndex((s) => s.id === schedule.id);
      if (scheduleIndex !== -1) {
        state[scheduleIndex] = schedule;
      } else {
        newSchedules.push(schedule);
      }
    });

    return [...state, ...newSchedules];
  }

  if (action.type === "DELETE_SCHEDULE") {
    const scheduleId = action.payload;
    const scheduleIndex = state.findIndex((q) => q.id === scheduleId);
    if (scheduleIndex !== -1) {
      state.splice(scheduleIndex, 1);
    }
    return [...state];
  }

  if (action.type === "RESET") {
    return [];
  }
};

 

const Item = (props) => {
 
  const { sx, ...other } = props;
  return (
    <Box
      sx={{
        bgcolor: (theme) => (theme.palette.mode === 'dark' ? '#101010' : '#fff'),
        color: (theme) => (theme.palette.mode === 'dark' ? 'grey.300' : 'grey.800'),
        border: '1px solid',
        borderColor: (theme) =>
          theme.palette.mode === 'dark' ? 'grey.800' : 'grey.300',
        p: 1,
        m: 1,
        borderRadius: 2,
        fontSize: '0.875rem',
        fontWeight: '700',
        ...sx,
      }}
      {...other}
    />
  );
}

Item.propTypes = {
  sx: PropTypes.oneOfType([
    PropTypes.arrayOf(
      PropTypes.oneOfType([PropTypes.func, PropTypes.object, PropTypes.bool]),
    ),
    PropTypes.func,
    PropTypes.object,
  ]),
}; 
 
 

const Modal = (props) => { 

  // const [clientSchedules, dispatch] = useReducer(reducer, []);
  const [selectedSchedule, setSelectedSchedule] = useState(null);
  const [confirmModalOpen, setConfirmModalOpen] = useState(false);  
  const [open, setOpen] = useState(true);
  const [scroll, /*setScroll*/] = useState('body');
  const [statusChatEndId, setStatusChatEnd] = useState(null)  
  const [startDate, setDatePicker] = useState(new Date())  
  const [timerPicker, setTimerPicker] = useState(new Date()) 
  const [textArea1, setTextArea1] = useState()    
  const [schedulesContact, dispatch] =  useReducer(reducer, []); 

  const [currencyHourBefore, setCurrency] = useState(null);
  const [currenciesTimeBefore, setCurrenciesTimeBefore] = useState(null); 
 
 
  const handleCancel = (event, reason) => {

    if (reason && reason === "backdropClick") 
        return;
 
    setOpen(false);
  };
 

  useEffect(() => { 
    
    (async () => { 
      try {       

        const { data } = await api.get("/tickets/" + props.ticketId); 
        
        dispatch({ type: "LOAD_SCHEDULES", payload: data.schedulesContact });
 
      } catch (err) {
        toastError(err); 
      }
    })();
  }, [props]); 
  
 
  function formatedTimeHour(timer){
    return  `${timer.getHours().toString().padStart(2, '0')}:${timer.getMinutes().toString().padStart(2, '0')}`
  }

  function formatedFullCurrentDate(){
    let dateCurrent = new Date() 
    let day = dateCurrent.getDate().toString().padStart(2, '0');
    let month = (dateCurrent.getMonth()+1).toString().padStart(2, '0');
    let year = dateCurrent.getFullYear();     
    return `${year}-${month}-${day}`; 
  }
 
   

  const handleCloseConfirmationModal = () => {
    setConfirmModalOpen(false);
    setSelectedSchedule(null);
  };
  

  const handleDeleteSchedule = async (scheduleId) => {
    try {
      await api.delete(`/schedule/${scheduleId}`);
      toast.success(("Lembrete/Agendamento deletado com sucesso!")); 
      dispatch({ type: "DELETE_SCHEDULE", payload: scheduleId }); 
    } catch (err) {
      toastError(err);
    }
    setSelectedSchedule(null);
  };

  // Get from child 2
const datePickerValue = (data) => { 
  console.log('datePickerValue: ',(data));   
  setDatePicker(data) 

   
}

// Get from child 3
const timerPickerValue = (data) => { 
  console.log('timerPickerValue: ',(data));   
  setTimerPicker(data)

 
}

 const dateCurrentFormated = (dateF=null) => { 

  let date =null

  if(dateF){
    date = new Date(dateF)
  }
  else{
    date = new Date();
  }

  let day = date.getDate().toString().padStart(2, '0');
  let month = (date.getMonth()+1).toString().padStart(2, '0');
  let year = date.getFullYear();   
   
  return `${year}-${month}-${day}`

}

  const handleChatEnd = (event, reason) => {   
    
    let dataSendServer = {'statusChatEndId': statusChatEndId}

    if (reason && reason === "backdropClick") 
        return;

    if (statusChatEndId === '2' || statusChatEndId === '3'){  

      console.log('Entrou! textArea1: ', textArea1)
      
       if( startDate.trim().length==0){

        alert('Selecione uma data atual ou futura!')
  
        return
      } 

      else if(textArea1 && textArea1.trim().length<5){
        alert('Mensagem muito curta!') 
        return
      }
      else if(!textArea1){
        alert('Defina uma mensagem para enviar para o cliente!')
        return
      }
      else if(formatedFullCurrentDate()===startDate &&        
        ((new Date(timerPicker).getHours() < new Date().getHours() && new Date(timerPicker).getMinutes() <= new Date().getMinutes()) ||
        (new Date(timerPicker).getHours() === new Date().getHours() && new Date(timerPicker).getMinutes() <= new Date().getMinutes()) || 
        (new Date(timerPicker).getHours() < new Date().getHours() && new Date(timerPicker).getMinutes() >= new Date().getMinutes()) ||
        (new Date(timerPicker).getHours() < new Date().getHours))){
            alert('Horário menor ou igual horário atual!') 
            return 
      }
      else if((new Date(timerPicker).getHours() > 20 && new Date(timerPicker).getMinutes() > 0) ||
      (new Date(timerPicker).getHours() < 6)){
        alert('Horário comercial inválido!\n Selecione um horário de lembrete válido entre às 06:00 e 20:00')
        return
      } 
     


      let dateSendMessage = startDate
      let timeBefore = formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}:00`))

      if(statusChatEndId === '3'){

        if(!currencyHourBefore){
          alert('Para agendamentos do dia corrente, essa funcionalidade atende a agendeamentos com no mínimo 2 horas adiantado a partir da hora atual!')
          return    
        } 

        timeBefore = currencyHourBefore

        let sendMessageDayBefore = currenciesTimeBefore.filter(i => i.label.indexOf('24 HORAS ANTES DO HORÁRIO DO AGENDAMENTO') >= 0);

        if(sendMessageDayBefore.length > 0 && timeBefore === formatedTimeHour(timerPicker))
        {
          console.log('ENVIAR MENSAGEM UM DIA ANTES!')
          console.log('MENSAGEM SERÁ ENVIA NO DIA: ',  dateCurrentFormated( new Date(subDays(new Date(startDate+' '+formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}:00`))), 1))))
         
          dateSendMessage = dateCurrentFormated( new Date(subDays(new Date(startDate+' '+formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}:00`))), 1)))
        }  
 

        console.log('AGENDAMENTO ENVIO MENSAGEM1: ', `${dateSendMessage} ${timeBefore}:00` )

      } else if (statusChatEndId === '2'){ 
 
        console.log('AGENDAMENTO ENVIO MENSAGEM2: ', startDate+' '+formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}:00`)) )
 
      }

      dataSendServer = { 
        'statusChatEndId': statusChatEndId,     
        'schedulingDate':  startDate+' '+formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}`))+':00',  
        'schedulingTime': `${dateSendMessage} ${timeBefore}:00`, 
        'message': textArea1  
      }
 

    }   
 
  
    props.func(dataSendServer)  

    setOpen(false);
  };
 




  useEffect(()=>{

    const hoursBeforeAvalible = (timer) =>{  
  
      let hours = []
      let hour = 1       

        console.log('>>>>>>>>>>>>>>>>>>>>>>>>>>> startDate: ', startDate )
        console.log('>>>>>>>>>>>>>>>>>>>>>>>>>>> dateCurrentFormated: ', dateCurrentFormated() )
        console.log('>>>>>>>>>>>>>>>>>>>>>>>>>>> startDate: ',typeof(startDate) )
        console.log('>>>>>>>>>>>>>>>>>>>>>>>>>>> startDate: ',(startDate) )
  
        if(typeof(startDate)==='string' && startDate.trim().length>0 && startDate === dateCurrentFormated()){
  
          console.log('HOJE++++')
  
          while(subHours(timer, hour).getHours()>=6 && 

          subHours(timer, hour).getHours()>=new Date().getHours() && 
          subHours(timer, hour).getHours()<=20){
  
            console.log('******** TIMER: ', formatedTimeHour(subHours(timer,hour)))
  
            hours.push({value: formatedTimeHour(subHours(timer,hour)), label: `${hour} HORA ANTES DO HORÁRIO DO AGENDAMENTO`})
  
            hour++;
          }
  
          if(hours.length>1){ 
            console.log('entrou----------------------: ', hours.length) 
            hours.pop() 
            setCurrency(hours[0].value) 
          }
          else{
            setCurrency(null)
          } 
  
        }
        else{ 
  
          while(subHours(timer, hour).getHours()>=6 && subHours(timer, hour).getHours()<=20){
  
            console.log('******** another day TIMER: ', formatedTimeHour(subHours(timer,hour)))
  
            hours.push(
              {value: formatedTimeHour(subHours(timer,hour)), 
              label: `${hour} HORA ANTES DO HORÁRIO DO AGENDAMENTO`})
  
            hour++;
          }
  
          if(hours.length>0){ 
            console.log('entrou----------------------: ', hours.length)  
            setCurrency(hours[0].value) 
          }
          else{
            setCurrency(null)
          } 
  
        }


        if(new Date(startDate) > addDays(new Date(), 1) ){ 

          hours.push({value: formatedTimeHour(timerPicker) , label: `24 HORAS ANTES DO HORÁRIO DO AGENDAMENTO`})
 
          console.log('#subDays: ', dateCurrentFormated( new Date(subDays(new Date(startDate+' '+formatedTimeHour(new Date(`${startDate} ${timerPicker.getHours()}:${timerPicker.getMinutes()}:00`))), 1))))
     
        }

        console.log('hourshourshourshourshourshourshourshourshourshourshourshours ', hours)  
         
    
        return {time: hours, hour:hour}       
  
    }

    console.log('===================================== addDays: ', addDays(new Date(), 1))
 
    
  
    setCurrenciesTimeBefore(hoursBeforeAvalible(timerPicker).time)     
       
  },[timerPicker, startDate]) 





  const descriptionElementRef = useRef(null);
  useEffect(() => {
    if (open) {
      const { current: descriptionElement } = descriptionElementRef;
      if (descriptionElement !== null) {
        descriptionElement.focus();
      }
    }
  }, [open]);


  // Get from child 1
const textFieldSelect = (data) => {
  console.log('textFieldSelect: ',data);  
  setStatusChatEnd(data)
   
}
 

const handleChange = (event) => {
    
  setTextArea1(event.target.value);

};


const handleChangeHourBefore = (event) => {

  console.log('textFihandleChangeHourBefore: ',event.target.value);  
   
  // var matchedTime = currenciesTimeBefore.filter(i => i.label.indexOf('24 HORAS ANTES DO HORÁRIO DO AGENDAMENTO') >= 0);

  // console.log('textFihandleChangeHourBefore matchedTime: ',matchedTime);  

  setCurrency(event.target.value); 

};
 


  return (  
 
    <Dialog 
            open={open}
            onClose={handleCancel} 
            // fullWidth={true}
            // maxWidth={true}    
            disableEscapeKeyDown

            scroll={scroll}
            aria-labelledby="scroll-dialog-title"
            aria-describedby="scroll-dialog-description"
          >   

            <DialogTitle id="scroll-dialog-title">{props.modal_header}</DialogTitle>
            <DialogContent dividers={scroll === 'body'}>

              <DialogContentText
                id="scroll-dialog-description"
                ref={descriptionElementRef}
                tabIndex={-1}
              >
                
              </DialogContentText> 

                  
                <Box
                      sx={{
                        width: 500,
                        height: '100%',
                        // backgroundColor: 'primary.dark',
                        // '&:hover': {backgroundColor: 'primary.main', opacity: [0.9, 0.8, 0.7],},
                      }}> 

                          <Box  sx={{
                              display: 'grid',  
                            }}>
                            <Item>
                                <span>Selecione uma opção para encerrar o Atendimento</span> 
                                
                                <SelectField func={textFieldSelect} 
                                emptyField={false} 
                                textBoxFieldSelected={'1'}
                                header={'Opções de encerramento do atendimento'} 
                                currencies={props.statusChatEnd.map((obj)=>{
                                          return {'value': obj.id, 'label': obj.name}
                                        })}/>
                                

                            </Item> 

                          </Box> 
                          
                          {statusChatEndId==='2' &&
                          
                          <Item> 

                            <span>Lembrete</span>

                          <Box sx={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)' }}> 
                            
                            <Item><DatePicker func={datePickerValue} minDate={true} startEmpty={true} title={'Data do lembrete'}/></Item>
                            
                            <Item><TimerPickerSelect func={timerPickerValue} title={'Hora do lembrete'}/></Item>
                              
                          </Box>


                          <Box sx={{display: 'flex', flexDirection: 'column' }}>     
                            
                            <Item>
                              <TextareaAutosize 
                                  aria-label="minimum height"
                                  minRows={3}  
                                  value={textArea1}
                                  placeholder={'Mensagem de envio para cliente'}   
                                  onChange={ handleChange}  
                                  style={{ width: '100%' }}
                              />
                            </Item>
                          </Box>

                        </Item>
                        }

                        {statusChatEndId==='3' &&
                           

                           <Item> 

                            <span>Agendamento</span>

                          <Box sx={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)' }}> 
                            
                            <Item><DatePicker func={datePickerValue} minDate={true} startEmpty={true} title={'Data do lembrete'}/></Item>
                            
                            <Item><TimerPickerSelect func={timerPickerValue} title={'Hora do lembrete'}/></Item>
                              
                          </Box>


                          <Box sx={{display: 'flex', flexDirection: 'column' }}>    

                           
                            <Item>              
                              {currencyHourBefore && startDate && typeof(startDate)==='string' && startDate.trim().length > 0 && currenciesTimeBefore.length > 0 && 
                              <TextFieldSelectHourBefore
                                id="outlined-select-currency"
                                disabled={startDate.length>0 ? false : true}
                                select
                                label="Enviar mensagem para cliente"
                                value={currencyHourBefore}
                                size="small"
                                onChange={handleChangeHourBefore} 
                                >
                                {currenciesTimeBefore.map((option) => (
                                  <MenuItem key={option.value} value={option.value}>
                                    {option.label}
                                  </MenuItem>
                                ))}
                              </TextFieldSelectHourBefore> 
                              }
                            </Item>


                            
                            <Item>
                              <TextareaAutosize 
                                  aria-label="minimum height"
                                  minRows={3}  
                                  value={textArea1}
                                  placeholder={'Mensagem de envio para cliente'}   
                                  onChange={ handleChange}  
                                  style={{ width: '100%' }}
                              />
                            </Item>

                          </Box>

                        </Item>
                          
                        }

                        {/* {schedulesContact.length>0 && 

                        

                        <Item> 

              <ConfirmationModal
                title={selectedSchedule && `Deletar lembrete do dia ${selectedSchedule.schedulingTime.split(' ')[0]}  ${selectedSchedule.schedulingTime.split(' ')[1]} ?`}
                open={confirmModalOpen}
                onClose={handleCloseConfirmationModal}
                onConfirm={() => handleDeleteSchedule(selectedSchedule.id)}
              >
                <span>Deseja realmente deletar esse Lembrete? </span>
              </ConfirmationModal> 
                              <span>Lembretes</span>
                        <Paper  variant="outlined"> 
                          <Table size="small">
                          
                            <TableHead>
                              <TableRow>
                                <TableCell align="center">
                                  Data
                                </TableCell>
                                <TableCell align="center">
                                  Hora 
                                </TableCell> 
                                <TableCell align="center">
                                  Mensagem 
                                </TableCell> 
                                <TableCell align="center">
                                  Deletar
                                </TableCell>
                              </TableRow>
                            </TableHead>
                            
                            <TableBody>
                              <>
                                {schedulesContact.map((scheduleData, index) => (
                                  <TableRow key={scheduleData.id}>
                                    <TableCell align="center">{scheduleData.schedulingDate.split(' ')[0]}</TableCell>
                                    <TableCell align="center">{scheduleData.schedulingTime.split(' ')[1]}</TableCell> 
                                    <TableCell align="center">{scheduleData.message}</TableCell> 

                                    <TableCell align="center"> 
                  
                                      <IconButton
                                        size="small"
                                        onClick={() => { 
                                          setSelectedSchedule(scheduleData);
                                          setConfirmModalOpen(true);
                                        
                                        }}
                                      >
                                        <DeleteOutline />
                                      </IconButton>
                                    </TableCell>

                                  </TableRow>
                                ))} 
                              </>
                            </TableBody>
                          </Table>
                        </Paper>  
                        </Item>} */}
                        
                          
                </Box>   
            </DialogContent>
            
    
            <DialogActions>     
              <div style={{marginRight:'50px'}}>
              <Button onClick={handleCancel}>Cancelar</Button>  
              </div>
              <Button onClick={handleChatEnd}>Ok</Button>  
            </DialogActions>
          </Dialog>  

  );
}

export default Modal