// react
import React, { useState } from "react";
// headless ui
import { Combobox, Dialog, Transition } from "@headlessui/react";
// ui
import { Button } from "ui";
// icons
import { MagnifyingGlassIcon, RectangleStackIcon } from "@heroicons/react/24/outline";
// types
import { IIssue } from "types";
import { classNames } from "constants/common";
import useUser from "lib/hooks/useUser";

type Props = {
  isOpen: boolean;
  handleClose: () => void;
  value?: any;
  onChange: (...event: any[]) => void;
  issues: IIssue[];
  title?: string;
  multiple?: boolean;
};

const IssuesListModal: React.FC<Props> = ({
  isOpen,
  handleClose: onClose,
  value,
  onChange,
  issues,
  title = "Issues",
  multiple = false,
}) => {
  const [query, setQuery] = useState("");
  const [values, setValues] = useState<string[]>([]);

  const { activeProject } = useUser();

  const handleClose = () => {
    onClose();
    setQuery("");
    setValues([]);
  };

  const filteredIssues: IIssue[] =
    query === ""
      ? issues ?? []
      : issues?.filter((issue) => issue.name.toLowerCase().includes(query.toLowerCase())) ?? [];

  return (
    <>
      <Transition.Root show={isOpen} as={React.Fragment} afterLeave={() => setQuery("")} appear>
        <Dialog as="div" className="relative z-10" onClose={handleClose}>
          <Transition.Child
            as={React.Fragment}
            enter="ease-out duration-300"
            enterFrom="opacity-0"
            enterTo="opacity-100"
            leave="ease-in duration-200"
            leaveFrom="opacity-100"
            leaveTo="opacity-0"
          >
            <div className="fixed inset-0 bg-gray-500 bg-opacity-25 transition-opacity" />
          </Transition.Child>

          <div className="fixed inset-0 z-10 overflow-y-auto p-4 sm:p-6 md:p-20">
            <Transition.Child
              as={React.Fragment}
              enter="ease-out duration-300"
              enterFrom="opacity-0 scale-95"
              enterTo="opacity-100 scale-100"
              leave="ease-in duration-200"
              leaveFrom="opacity-100 scale-100"
              leaveTo="opacity-0 scale-95"
            >
              <Dialog.Panel className="relative mx-auto max-w-2xl transform divide-y divide-gray-500 divide-opacity-10 rounded-xl bg-white bg-opacity-80 shadow-2xl ring-1 ring-black ring-opacity-5 backdrop-blur backdrop-filter transition-all">
                <Combobox
                  value={value}
                  onChange={(val) => {
                    if (multiple) setValues(val);
                    else onChange(val);
                  }}
                  // multiple={multiple}
                >
                  <div className="relative m-1">
                    <MagnifyingGlassIcon
                      className="pointer-events-none absolute top-3.5 left-4 h-5 w-5 text-gray-900 text-opacity-40"
                      aria-hidden="true"
                    />
                    <Combobox.Input
                      className="h-12 w-full border-0 bg-transparent pl-11 pr-4 text-gray-900 placeholder-gray-500 focus:ring-0 sm:text-sm outline-none"
                      placeholder="Search..."
                      onChange={(e) => setQuery(e.target.value)}
                    />
                  </div>

                  <Combobox.Options
                    static
                    className="max-h-80 scroll-py-2 divide-y divide-gray-500 divide-opacity-10 overflow-y-auto"
                  >
                    {filteredIssues.length > 0 && (
                      <li className="p-2">
                        {query === "" && (
                          <h2 className="mt-4 mb-2 px-3 text-xs font-semibold text-gray-900">
                            {title}
                          </h2>
                        )}
                        <ul className="text-sm text-gray-700">
                          {filteredIssues.map((issue) => (
                            <Combobox.Option
                              key={issue.id}
                              value={issue.id}
                              className={({ active }) =>
                                classNames(
                                  "flex items-center gap-2 cursor-pointer select-none rounded-md px-3 py-2",
                                  active ? "bg-gray-900 bg-opacity-5 text-gray-900" : ""
                                )
                              }
                              onClick={() => {
                                if (!multiple) handleClose();
                              }}
                            >
                              {({ selected }) => (
                                <>
                                  {multiple ? (
                                    <input type="checkbox" checked={selected} readOnly />
                                  ) : null}
                                  <span
                                    className="flex-shrink-0 h-1.5 w-1.5 block rounded-full"
                                    style={{
                                      backgroundColor: issue.state_detail.color,
                                    }}
                                  />
                                  <span className="flex-shrink-0 text-xs text-gray-500">
                                    {activeProject?.identifier}-{issue.sequence_id}
                                  </span>{" "}
                                  {issue.name}
                                </>
                              )}
                            </Combobox.Option>
                          ))}
                        </ul>
                      </li>
                    )}
                  </Combobox.Options>

                  {query !== "" && filteredIssues.length === 0 && (
                    <div className="py-14 px-6 text-center sm:px-14">
                      <RectangleStackIcon
                        className="mx-auto h-6 w-6 text-gray-900 text-opacity-40"
                        aria-hidden="true"
                      />
                      <p className="mt-4 text-sm text-gray-900">
                        We couldn{"'"}t find any issue with that term. Please try again.
                      </p>
                    </div>
                  )}
                </Combobox>
                {multiple ? (
                  <div className="flex justify-end items-center gap-2 p-3">
                    <Button type="button" theme="danger" size="sm" onClick={handleClose}>
                      Cancel
                    </Button>
                    <Button type="button" size="sm" onClick={() => onChange(values)}>
                      Add to Cycle
                    </Button>
                  </div>
                ) : null}
              </Dialog.Panel>
            </Transition.Child>
          </div>
        </Dialog>
      </Transition.Root>
    </>
  );
};

export default IssuesListModal;