import React, { useState } from "react";

import Link from "next/link";
import { useRouter } from "next/router";
import Image from "next/image";
import useSWR, { mutate } from "swr";

// toast
import useToast from "hooks/use-toast";
// components
import { DeleteModuleModal } from "components/modules";
// ui
import { AssigneesList, Avatar, CustomMenu, Tooltip } from "components/ui";
// icons
import User from "public/user.png";
import {
  CalendarDaysIcon,
  StarIcon,
  UserCircleIcon,
  UserGroupIcon,
} from "@heroicons/react/24/outline";
// helpers
import {
  renderShortDateWithYearFormat,
  renderShortNumericDateFormat,
} from "helpers/date-time.helper";
// services
import stateService from "services/state.service";
import modulesService from "services/modules.service";
// types
import { IModule } from "types";
// fetch-key
import { MODULE_LIST, STATE_LIST } from "constants/fetch-keys";
// helper
import { copyTextToClipboard, truncateText } from "helpers/string.helper";
import { getStatesList } from "helpers/state.helper";

type Props = {
  module: IModule;
  handleEditModule: () => void;
};

const stateGroupColours: {
  [key: string]: string;
} = {
  backlog: "#3f76ff",
  unstarted: "#ff9e9e",
  started: "#d687ff",
  cancelled: "#ff5353",
  completed: "#096e8d",
};

export const SingleModuleCard: React.FC<Props> = ({ module, handleEditModule }) => {
  const [moduleDeleteModal, setModuleDeleteModal] = useState(false);

  const router = useRouter();
  const { workspaceSlug, projectId } = router.query;
  const { setToastAlert } = useToast();

  const handleDeleteModule = () => {
    if (!module) return;

    setModuleDeleteModal(true);
  };
  const { data: stateGroups } = useSWR(
    workspaceSlug && module.project_detail.id ? STATE_LIST(module.project_detail.id) : null,
    workspaceSlug && module.project_detail.id
      ? () => stateService.getStates(workspaceSlug as string, module.project_detail.id)
      : null
  );

  const states = getStatesList(stateGroups ?? {});
  const selectedOption = states?.find(
    (s) => s.name.replace(" ", "-").toLowerCase() === module.status?.replace(" ", "-").toLowerCase()
  );

  const handleAddToFavorites = () => {
    if (!workspaceSlug && !projectId && !module) return;

    modulesService
      .addModuleToFavorites(workspaceSlug as string, projectId as string, {
        module: module.id,
      })
      .then(() => {
        mutate<IModule[]>(
          MODULE_LIST(projectId as string),
          (prevData) =>
            (prevData ?? []).map((m) => ({
              ...m,
              is_favorite: m.id === module.id ? true : m.is_favorite,
            })),
          false
        );

        setToastAlert({
          type: "success",
          title: "Success!",
          message: "Successfully added the module to favorites.",
        });
      })
      .catch(() => {
        setToastAlert({
          type: "error",
          title: "Error!",
          message: "Couldn't add the module to favorites. Please try again.",
        });
      });
  };

  const handleRemoveFromFavorites = () => {
    if (!workspaceSlug || !module) return;

    modulesService
      .removeModuleFromFavorites(workspaceSlug as string, projectId as string, module.id)
      .then(() => {
        mutate<IModule[]>(
          MODULE_LIST(projectId as string),
          (prevData) =>
            (prevData ?? []).map((m) => ({
              ...m,
              is_favorite: m.id === module.id ? false : m.is_favorite,
            })),
          false
        );
        setToastAlert({
          type: "success",
          title: "Success!",
          message: "Successfully removed the module from favorites.",
        });
      })
      .catch(() => {
        setToastAlert({
          type: "error",
          title: "Error!",
          message: "Couldn't remove the module from favorites. Please try again.",
        });
      });
  };

  const handleCopyText = () => {
    const originURL =
      typeof window !== "undefined" && window.location.origin ? window.location.origin : "";

    copyTextToClipboard(
      `${originURL}/${workspaceSlug}/projects/${projectId}/modules/${module.id}`
    ).then(() => {
      setToastAlert({
        type: "success",
        title: "Link Copied!",
        message: "Module link copied to clipboard.",
      });
    });
  };

  const endDate = new Date(module.target_date ?? "");
  const startDate = new Date(module.start_date ?? "");

  return (
    <>
      <DeleteModuleModal
        isOpen={moduleDeleteModal}
        setIsOpen={setModuleDeleteModal}
        data={module}
      />
      <div className="h-full w-full min-w-[360px]">
        <div className="flex h-full w-full flex-row rounded-[10px] bg-white text-xs shadow">
          <span
            className={`h-full w-2.5 rounded-l-[10px] `}
            style={{
              backgroundColor: `${
                selectedOption ? stateGroupColours[selectedOption.group] : "#6b7280"
              }`,
            }}
          />
          <div className="flex h-full w-full flex-col items-start justify-between gap-6 p-5">
            <div className="flex w-full flex-col gap-5">
              <Tooltip tooltipContent={module.name} position="top-left">
                <span className="break-all text-xl font-semibold text-black">
                  <Link href={`/${workspaceSlug}/projects/${module.project}/modules/${module.id}`}>
                    <a className="w-full">{truncateText(module.name, 75)}</a>
                  </Link>
                </span>
              </Tooltip>
              <div className="flex items-center gap-4">
                <div className="flex items-start gap-1 ">
                  <CalendarDaysIcon className="h-4 w-4 text-gray-900" />
                  <span className="text-gray-400">Start:</span>
                  <span>{renderShortDateWithYearFormat(startDate)}</span>
                </div>
                <div className="flex items-start gap-1">
                  <CalendarDaysIcon className="h-4 w-4 text-gray-900" />
                  <span className="text-gray-400">End:</span>
                  <span>{renderShortDateWithYearFormat(endDate)}</span>
                </div>
              </div>
              <div className="flex items-center gap-6">
                <div className="flex items-center gap-1.5">
                  <UserCircleIcon className="h-5 w-5 text-gray-400" />
                  <span>Lead:</span>
                  <div>
                    {module.lead_detail ? (
                      <div className="flex items-center gap-1">
                        <Avatar user={module.lead_detail} />
                        <span>{module.lead_detail.first_name}</span>
                      </div>
                    ) : (
                      <div className="flex items-center gap-1">
                        <Image
                          src={User}
                          height="12px"
                          width="12px"
                          className="rounded-full"
                          alt="N/A"
                        />
                        <span>N/A</span>
                      </div>
                    )}
                  </div>
                </div>
                <div className="flex items-center gap-1.5">
                  <UserGroupIcon className="h-5 w-5 text-gray-400" />
                  <span>Members:</span>
                  <div className="flex  items-center gap-1 text-xs">
                    {module.members && module.members.length > 0 ? (
                      <AssigneesList userIds={module.members} length={3} />
                    ) : (
                      <div className="flex items-center gap-1">
                        <Image
                          src={User}
                          height="16px"
                          width="16px"
                          className="rounded-full"
                          alt="N/A"
                        />
                        <span>N/A</span>
                      </div>
                    )}
                  </div>
                </div>
              </div>
            </div>
            <div className="flex w-full items-center justify-between gap-4">
              <div className="flex items-center gap-2 rounded bg-gray-100 px-2.5 py-2">
                <span className="capitalize">{module?.status?.replace("-", " ")}</span>
              </div>
              <div className="flex items-center gap-1">
                {module.is_favorite ? (
                  <button onClick={handleRemoveFromFavorites}>
                    <StarIcon className="h-4 w-4 text-orange-400" fill="#f6ad55" />
                  </button>
                ) : (
                  <button onClick={handleAddToFavorites}>
                    <StarIcon className="h-4 w-4 " color="#858E96" />
                  </button>
                )}

                <CustomMenu width="auto" verticalEllipsis>
                  <CustomMenu.MenuItem onClick={handleEditModule}>Edit module</CustomMenu.MenuItem>
                  <CustomMenu.MenuItem onClick={handleDeleteModule}>
                    Delete module
                  </CustomMenu.MenuItem>
                  <CustomMenu.MenuItem onClick={handleCopyText}>
                    Copy module link
                  </CustomMenu.MenuItem>
                </CustomMenu>
              </div>
            </div>
          </div>
        </div>
      </div>
    </>
  );
};