import { Op, fn, where, col, Filterable, Includeable } from "sequelize";
import { startOfDay, endOfDay, parseISO, format } from "date-fns";
import ptBR from "date-fns/locale/pt-BR";

import Ticket from "../../models/Ticket";
import Contact from "../../models/Contact";
import Message from "../../models/Message";
import Queue from "../../models/Queue";
import ShowUserService from "../UserServices/ShowUserService";

const unflatten = require("flat").unflatten;

import { splitDateTime } from "../../helpers/SplitDateTime";
const dateToday = splitDateTime(
  new Date(format(new Date(), "yyyy-MM-dd HH:mm:ss", { locale: ptBR }))
);

import ListTicketServiceCache from "./ListTicketServiceCache";

import { searchTicketCache, loadTicketsCache } from "../../helpers/TicketCache";
import { getWbot } from "../../libs/wbot";
import User from "../../models/User";

interface Request {
  searchParam?: string;
  pageNumber?: string;
  status?: string;
  date?: string;
  showAll?: string;
  userId: string;
  withUnreadMessages?: string;
  queueIds: number[];
  unlimited?: string;
  searchParamContent?: string;
}

interface Response {
  tickets: Ticket[];
  count: number;
  hasMore: boolean;
}

const ListTicketsService = async ({
  searchParam = "",
  pageNumber = "1",
  queueIds,
  status,
  date,
  showAll,
  userId,
  withUnreadMessages,
  unlimited = "false",
  searchParamContent = ""
}: Request): Promise<Response> => {
  console.log("----------> searchParamContent: ", searchParamContent);

  let whereCondition: Filterable["where"] = {
    [Op.or]: [{ userId }, { status: "pending" }],
    queueId: { [Op.or]: [queueIds, null] }
  };

  console.log("PAGE NUMBER TICKET: ", pageNumber);

  if (pageNumber.trim().length == 0) {
    pageNumber = "1";
  }

  if (searchParam && searchParam.trim().length > 0 && process.env.CACHE) {
    try {
      const offset = 40 * (+pageNumber - 1);

      searchParam = searchParam.replace(/\s+/g, " ").trim().toLowerCase();

      console.log("QUERY TICKET SEARCH PARAM FROM CACHE: ", searchParam);

      let tickets: any = await searchTicketCache(searchParam, offset, 40);

      if (tickets) {
        console.log(
          "QUERY TICKET SEARCH PARAM FROM CACHE LENGTH...: ",
          tickets.length
        );

        tickets.map((t: any) => {
          t["contact.number"] = t["contact_number"];
          delete t["contact_number"];

          return { ...["contact_number"] };
        });

        tickets = tickets.map((e: any) => unflatten(e));

        return {
          tickets,
          count: tickets.length,
          hasMore: tickets.length > 0 ? true : false
        };
      }
    } catch (error) {
      console.log(
        "There was an error on search ListTicketservice.ts search cache: ",
        error
      );
    }

    console.log("QUERY TICKETS FROM DATABASE...");
  }

  let includeCondition: Includeable[];

  includeCondition = [
    {
      model: Contact,
      as: "contact",
      attributes: ["id", "name", "number", "profilePicUrl"]
    },
    {
      model: Queue,
      as: "queue",
      attributes: ["id", "name", "color"]
    }
  ];

  if (showAll === "true") {
    whereCondition = { queueId: { [Op.or]: [queueIds, null] } };
  }

  if (status) {
    whereCondition = { ...whereCondition, status };

    if (unlimited === "current" && status !== "pending") {
      whereCondition = {
        ...whereCondition,
        createdAt: {
          [Op.gte]: dateToday.fullDate + " 00:00:00.000000",
          [Op.lte]: dateToday.fullDate + " 23:59:59.999999"
        }
      };
    }
  }

  if (searchParam) {
    const sanitizedSearchParam = searchParam.toLocaleLowerCase().trim();
    const sanitizedSearchParamContent = searchParamContent
      .toLocaleLowerCase()
      .trim();

    if (searchParamContent.length > 0) {
      includeCondition = [
        ...includeCondition,
        {
          model: Message,
          as: "messages",
          attributes: ["id", "body"],
          where: {
            body: where(
              fn("LOWER", col("body")),
              "LIKE",
              `%${sanitizedSearchParamContent}%`
            )
          },
          required: false,
          duplicating: false
        }
      ];

      whereCondition = {
        ...whereCondition,
        "$message.body$": where(
          fn("LOWER", col("body")),
          "LIKE",
          `%${sanitizedSearchParamContent}%`
        )
      };
    }

    whereCondition = {
      ...whereCondition,
      [Op.or]: [
        {
          "$contact.name$": where(
            fn("LOWER", col("contact.name")),
            "LIKE",
            `%${sanitizedSearchParam}%`
          )
        },

        { "$contact.number$": { [Op.like]: `%${sanitizedSearchParam}%` } }
      ]
    };

    const userProfile: any = await User.findByPk(userId);

    if (
      userProfile.dataValues.profile != "admin" &&
      userProfile.dataValues.profile != "master" &&
      userProfile.dataValues.profile != "supervisor"
    ) {
      whereCondition = { ...whereCondition, userId };
    }
  }

  if (date) {
    whereCondition = {
      createdAt: {
        [Op.between]: [+startOfDay(parseISO(date)), +endOfDay(parseISO(date))]
      }
    };
  }

  if (withUnreadMessages === "true") {
    const user = await ShowUserService(userId);
    const userQueueIds = user.queues.map(queue => queue.id);

    whereCondition = {
      [Op.or]: [{ userId }, { status: "pending" }],
      queueId: { [Op.or]: [userQueueIds, null] },
      unreadMessages: { [Op.gt]: 0 }
    };
  }

  let limit;

  if (unlimited === "current") limit = 10000;
  else if (unlimited === "all") limit = 100;
  else limit = 40;

  // const limit = unlimited === "current" || unlimited === "all" ? 1000 : 40;
  const offset = limit * (+pageNumber - 1);

  console.log("kkkkkkkkk limit: ", limit);

  const { count, rows: tickets } = await Ticket.findAndCountAll({
    where: whereCondition,
    include: includeCondition,
    distinct: true,
    limit,
    offset,
    order: [["updatedAt", "DESC"]]
  });

  const hasMore = count > offset + tickets.length;

  return {
    tickets,
    count,
    hasMore
  };
};

export default ListTicketsService;