import { useState } from "react";

import { useRouter } from "next/router";

import useSWR from "swr";

// services
import cyclesService from "services/cycles.service";
// components
import { DeleteCycleModal, SingleCycleCard, SingleCycleList } from "components/cycles";
// icons
import { ExclamationIcon } from "components/icons";
// types
import { ICycle, SelectCycleType } from "types";
// fetch-keys
import { CYCLE_COMPLETE_LIST } from "constants/fetch-keys";
import { EmptyState, Loader } from "components/ui";
// image
import emptyCycle from "public/empty-state/empty-cycle.svg";

export interface CompletedCyclesListProps {
  cycleView: string;
  setCreateUpdateCycleModal: React.Dispatch<React.SetStateAction<boolean>>;
  setSelectedCycle: React.Dispatch<React.SetStateAction<SelectCycleType>>;
}

export const CompletedCycles: React.FC<CompletedCyclesListProps> = ({
  cycleView,
  setCreateUpdateCycleModal,
  setSelectedCycle,
}) => {
  const [cycleDeleteModal, setCycleDeleteModal] = useState(false);
  const [selectedCycleForDelete, setSelectedCycleForDelete] = useState<SelectCycleType>();

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

  const { data: completedCycles } = useSWR(
    workspaceSlug && projectId ? CYCLE_COMPLETE_LIST(projectId as string) : null,
    workspaceSlug && projectId
      ? () => cyclesService.getCompletedCycles(workspaceSlug as string, projectId as string)
      : null
  );

  const handleDeleteCycle = (cycle: ICycle) => {
    setSelectedCycleForDelete({ ...cycle, actionType: "delete" });
    setCycleDeleteModal(true);
  };

  const handleEditCycle = (cycle: ICycle) => {
    setSelectedCycle({ ...cycle, actionType: "edit" });
    setCreateUpdateCycleModal(true);
  };

  return (
    <>
      <DeleteCycleModal
        isOpen={
          cycleDeleteModal &&
          !!selectedCycleForDelete &&
          selectedCycleForDelete.actionType === "delete"
        }
        setIsOpen={setCycleDeleteModal}
        data={selectedCycleForDelete}
      />
      {completedCycles ? (
        completedCycles.completed_cycles.length > 0 ? (
          <div className="flex flex-col gap-4">
            <div className="flex items-center gap-2 text-sm text-brand-secondary">
              <ExclamationIcon
                height={14}
                width={14}
                className="fill-current text-brand-secondary"
              />
              <span>Completed cycles are not editable.</span>
            </div>
            {cycleView === "list" && (
              <div>
                {completedCycles.completed_cycles.map((cycle) => (
                  <div className="hover:bg-brand-surface-2">
                    <div className="flex flex-col border-brand-base">
                      <SingleCycleList
                        key={cycle.id}
                        cycle={cycle}
                        handleDeleteCycle={() => handleDeleteCycle(cycle)}
                        handleEditCycle={() => handleEditCycle(cycle)}
                        isCompleted
                      />
                    </div>
                  </div>
                ))}
              </div>
            )}
            {cycleView === "board" && (
              <div className="grid grid-cols-1 gap-9 md:grid-cols-2 lg:grid-cols-3">
                {completedCycles.completed_cycles.map((cycle) => (
                  <SingleCycleCard
                    key={cycle.id}
                    cycle={cycle}
                    handleDeleteCycle={() => handleDeleteCycle(cycle)}
                    handleEditCycle={() => handleEditCycle(cycle)}
                    isCompleted
                  />
                ))}
              </div>
            )}
            {cycleView === "gantt" && (
              <EmptyState
                type="cycle"
                title="Create New Cycle"
                description="Sprint more effectively with Cycles by confining your project to a fixed amount of time. Create new cycle now."
                imgURL={emptyCycle}
              />
            )}
          </div>
        ) : (
          <EmptyState
            type="cycle"
            title="Create New Cycle"
            description="Sprint more effectively with Cycles by confining your project
          to a fixed amount of time. Create new cycle now."
            imgURL={emptyCycle}
          />
        )
      ) : (
        <Loader className="grid grid-cols-1 gap-9 md:grid-cols-2 lg:grid-cols-3">
          <Loader.Item height="200px" />
          <Loader.Item height="200px" />
          <Loader.Item height="200px" />
        </Loader>
      )}
    </>
  );
};
