import { Sequelize } from "sequelize";

const dbConfig = require("../../config/database");
const sequelize = new Sequelize(dbConfig);
const { QueryTypes } = require("sequelize");

import { splitDateTime } from "../../helpers/SplitDateTime";
import format from "date-fns/format";
import ptBR from "date-fns/locale/pt-BR";
import Whatsapp from "../../models/Whatsapp";
import { number } from "yup";
import ShowWhatsAppService from "../WhatsappService/ShowWhatsAppService";

interface Request {
  startDate: string | number;
  endDate: string;
  queue?: boolean;
}

const ReportByNumberQueueService = async ({
  startDate,
  endDate,
  queue = false
}: Request): Promise<any[]> => {
  let reportServiceData: any[] = [];

  const whatsapps = await Whatsapp.findAll();

  if (!queue) {
    for (const whatsapp of whatsapps) {
      const { id, name, number } = whatsapp;

      if (
        !number ||
        reportServiceData.findIndex((w: any) => w?.number == number) != -1
      )
        continue;

      console.log("NUMBER: ", number);

      // CHAT STARTED BY AGENT
      const startedByAgent: any = await sequelize.query(
        `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999' 
        AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
        AND m.fromAgent = 1 
        AND w.number = ${number};`,
        { type: QueryTypes.SELECT }
      );

      // CHAT STARTED BY CLIENT
      const startedByClient: any = await sequelize.query(
        `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
        AND m.fromMe = 0 
        AND w.number = ${number};`,
        { type: QueryTypes.SELECT }
      );

      // CHAT CLOSED
      const closedChat: any = await sequelize.query(
        `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND t.status = 'closed' 
        AND w.number = ${number};`,
        { type: QueryTypes.SELECT }
      );

      // CHAT WAINTING TIME
      const avgChatWaitingTime: any = await sequelize.query(
        `
        SELECT  TIME_FORMAT(
        SEC_TO_TIME( 
                TIMESTAMPDIFF(
                    SECOND,
                    (
                        SELECT createdAt 
                        FROM Messages 
                        WHERE ticketId = m.ticketId 
                        AND fromMe = 0 
                        ORDER BY createdAt ASC 
                        LIMIT 1
                    ), 
                    (
                        SELECT createdAt 
                        FROM Messages 
                        WHERE ticketId = m.ticketId 
                        AND fromAgent = 1 
                        ORDER BY createdAt ASC 
                        LIMIT 1
                    )
                ) 
        ), '%H:%i:%s') AS WAITING_TIME      
    FROM Tickets t 
    JOIN Messages m ON t.id = m.ticketId
    JOIN Whatsapps w ON t.whatsappId = w.id
    JOIN Queues q ON q.id = t.queueId
    WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
      AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
      AND m.fromMe = 0 
      -- AND q.id = 2  
      AND w.number = ${number} 
      AND (t.status = 'open' OR t.status = 'closed')
    ORDER BY 
        WAITING_TIME;`,
        { type: QueryTypes.SELECT }
      );

      // CHAT PENDING
      const pendingChat: any = await sequelize.query(
        `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND t.status = 'pending' 
        AND w.number = ${number};`,

        { type: QueryTypes.SELECT }
      ); 
 
      reportServiceData.push({
        id,
        name,
        number,
        startedByAgent: startedByAgent[0]?.ticket_count,
        startedByClient: startedByClient[0]?.ticket_count,
        closedChat: closedChat[0]?.ticket_count,
        avgChatWaitingTime: avg(avgChatWaitingTime),
        pendingChat: pendingChat[0]?.ticket_count
      });
    }
  } else {
    for (const whatsapp of whatsapps) {
      const { id, name, number } = whatsapp;

      if (
        !number ||
        reportServiceData.findIndex((w: any) => w?.number == number) != -1
      )
        continue;

      const data = await ShowWhatsAppService(id);

      const queues: any = data.queues.map((q: any) => {
        const { id, name, color } = q;
        return { id, name, color };
      });

      console.log("NUMBER 2: ", number);

      for (const q of queues) {
        // CHAT STARTED BY AGENT
        const startedByAgent: any = await sequelize.query(
          `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999' 
        AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
        AND m.fromAgent = 1 
        AND q.id = ${q.id};`,
          { type: QueryTypes.SELECT }
        );

        // CHAT STARTED BY CLIENT
        const startedByClient: any = await sequelize.query(
          `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
        AND m.fromMe = 0 
        AND q.id = ${q.id};`,
          { type: QueryTypes.SELECT }
        );

        // CHAT CLOSED
        const closedChat: any = await sequelize.query(
          `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND t.status = 'closed' 
       AND q.id = ${q.id};`,
          { type: QueryTypes.SELECT }
        );

        // CHAT WAINTING TIME
        const avgChatWaitingTime: any = await sequelize.query(
          `SELECT TIME_FORMAT(
        SEC_TO_TIME(
             TIMESTAMPDIFF(
                    SECOND,
                    (
                        SELECT createdAt 
                        FROM Messages 
                        WHERE ticketId = m.ticketId 
                        AND fromMe = 0 
                        ORDER BY createdAt ASC 
                        LIMIT 1
                    ), 
                    (
                        SELECT createdAt 
                        FROM Messages 
                        WHERE ticketId = m.ticketId 
                        AND fromAgent = 1 
                        ORDER BY createdAt ASC 
                        LIMIT 1
                    )
                ) 
        ), '%H:%i:%s') AS WAITING_TIME      
    FROM Tickets t 
    JOIN Messages m ON t.id = m.ticketId
    JOIN Whatsapps w ON t.whatsappId = w.id
    JOIN Queues q ON q.id = t.queueId
    WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
    AND m.createdAt = (SELECT MIN(createdAt) FROM Messages WHERE ticketId = t.id) 
    AND m.fromMe = 0  
    AND q.id = ${q.id}
    AND (t.status = 'open' OR t.status = 'closed')
    ORDER BY 
        WAITING_TIME;`,
          { type: QueryTypes.SELECT }
        );

        // CHAT PENDING
        const pendingChat: any = await sequelize.query(
          `SELECT COUNT(DISTINCT t.id) AS ticket_count       
        FROM Tickets t 
        JOIN Messages m ON t.id = m.ticketId 
        JOIN Whatsapps w ON t.whatsappId = w.id
        JOIN Queues q ON q.id = t.queueId
        WHERE DATE(m.createdAt) BETWEEN '${startDate} 00:00:00.000000' AND '${endDate} 23:59:59.999999'  
        AND t.status = 'pending' 
        AND q.id = ${q.id};`,

          { type: QueryTypes.SELECT }
        ); 

        reportServiceData.push({
          id,
          name,
          number,
          queueName: q.name,
          queueColor: q.color,
          startedByAgent: startedByAgent[0]?.ticket_count,
          startedByClient: startedByClient[0]?.ticket_count,
          closedChat: closedChat[0]?.ticket_count,
          avgChatWaitingTime: avg(avgChatWaitingTime),
          pendingChat: pendingChat[0]?.ticket_count
        });
      }
    }
  }

  return reportServiceData;
};

export default ReportByNumberQueueService;

function avg(avgChatWaitingTime: any) {
  let waitingAVG: any = avgChatWaitingTime
    .filter((t: any) => t?.WAITING_TIME)
    .map((t: any) => t.WAITING_TIME)

  if (waitingAVG.length > 0) {
    let midIndex = Math.floor((0 + waitingAVG.length) / 2)

    if (waitingAVG.length % 2 == 1) {
      waitingAVG = waitingAVG[midIndex]
    } else {
      waitingAVG = calculateAverageTime(
        waitingAVG[midIndex - 1],
        waitingAVG[midIndex]
      )
    }
  } else {
    waitingAVG = 0
  }
  return waitingAVG
}

function calculateAverageTime(time1: string, time2: string) {
  // Function to parse time string to seconds
  function timeStringToSeconds(timeString: string) {
    const [hours, minutes, seconds] = timeString.split(":").map(Number);
    return hours * 3600 + minutes * 60 + seconds;
  }

  // Function to convert seconds to time string
  function secondsToTimeString(seconds: number) {
    const hours = Math.floor(seconds / 3600);
    const minutes = Math.floor((seconds % 3600) / 60);
    const remainingSeconds = seconds % 60;
    return `${hours.toString().padStart(2, "0")}:${minutes
      .toString()
      .padStart(2, "0")}:${remainingSeconds.toString().padStart(2, "0")}`;
  }

  // Convert time strings to seconds
  const time1Seconds = timeStringToSeconds(time1);
  const time2Seconds = timeStringToSeconds(time2);

  // Calculate average seconds
  const averageSeconds = Math.round((time1Seconds + time2Seconds) / 2);

  // Convert average seconds back to time string
  const averageTime = secondsToTimeString(averageSeconds);

  return averageTime;
}