import React, { useState, useEffect, useCallback } from "react";
import PropTypes from "prop-types";
import { useDispatch, useSelector } from "react-redux";
import { addTorrent, searchTorrents } from "../../actions/torrents";
import Loader from "../loader/loader";

import { OverlayTrigger, Tooltip } from "react-bootstrap";

import { prettySize } from "../../utils";

export const TorrentSearch = ({ history, match }) => {
  const dispatch = useDispatch();

  const [search, setSearch] = useState(match.params.search || "");
  const [type, setType] = useState(match.params.type || "");

  const url = useCallback(() => {
    if (search === "" || type === "") {
      return "";
    }

    return `/torrents/search/${type}/${encodeURI(search)}`;
  }, [type, search]);

  const searchFunc = useCallback(() => {
    const searchURL = url();
    if (searchURL === "") {
      return;
    }

    dispatch(searchTorrents(searchURL));
    history.push(searchURL);
  }, [dispatch, history, url]);

  useEffect(() => {
    searchFunc();
  }, [searchFunc]);

  return (
    <div className="row">
      <div className="col-12 d-flex flex-row flex-wrap">
        <input
          type="text"
          className="form-control mb-1 w-100 form-control-lg"
          placeholder="Search torrents"
          value={search}
          onChange={(e) => setSearch(e.target.value)}
        />
        <div className="mb-3 w-100 d-flex">
          <SearchButton
            text="Search movies"
            type="movies"
            typeFromURL={type}
            handleClick={() => {
              setType("movies");
              searchFunc();
            }}
          />
          <SearchButton
            text="Search shows"
            type="shows"
            typeFromURL={type}
            handleClick={() => {
              setType("shows");
              searchFunc();
            }}
          />
        </div>
      </div>
      <div className="col-12">
        <TorrentList search={search} />
      </div>
    </div>
  );
};
TorrentSearch.propTypes = {
  search: PropTypes.string,
  match: PropTypes.object,
  history: PropTypes.object,
};

const SearchButton = ({ type, typeFromURL, text, handleClick }) => {
  const variant = type === typeFromURL ? "primary" : "secondary";
  return (
    <button
      type="button"
      className={`w-50 btn m-1 btn-lg btn-${variant}`}
      onClick={handleClick}
    >
      <i className="fa fa-search" aria-hidden="true"></i> {text}
    </button>
  );
};
SearchButton.propTypes = {
  type: PropTypes.string,
  typeFromURL: PropTypes.string,
  text: PropTypes.string,
  handleClick: PropTypes.func.isRequired,
};

const TorrentList = ({ search }) => {
  const searching = useSelector((state) => state.torrents.searching);
  const results = useSelector((state) => state.torrents.searchResults);

  if (searching) {
    return <Loader />;
  }

  if (search === "") {
    return null;
  }

  if (results.size === 0) {
    return (
      <div className="jumbotron">
        <h2>No results</h2>
      </div>
    );
  }

  return (
    <React.Fragment>
      {results.map(function (el, index) {
        return <Torrent key={index} torrent={el} />;
      })}
    </React.Fragment>
  );
};
TorrentList.propTypes = {
  search: PropTypes.string,
};

const Torrent = ({ torrent }) => {
  const dispatch = useDispatch();

  return (
    <div className="alert d-flex border-bottom border-secondary align-items-center">
      <TorrentHealth
        url={torrent.url}
        seeders={torrent.seeders}
        leechers={torrent.leechers}
      />
      <span className="mx-3 text text-start text-break flex-fill">
        {torrent.name}
      </span>
      <div>
        {torrent.size !== 0 && (
          <span className="mx-1 badge badge-pill badge-warning">
            {prettySize(torrent.size)}
          </span>
        )}

        <span className="mx-1 badge badge-pill badge-warning">
          {torrent.quality}
        </span>
        <span className="mx-1 badge badge-pill badge-success">
          {torrent.source}
        </span>
        <span className="mx-1 badge badge-pill badge-info">
          {torrent.upload_user}
        </span>
      </div>
      <div className="align-self-end ml-3">
        <i
          className="fa fa-cloud-download clickable"
          onClick={() =>
            dispatch(addTorrent({ url: torrent.url, metadata: null }))
          }
        ></i>
      </div>
    </div>
  );
};
Torrent.propTypes = {
  torrent: PropTypes.object.isRequired,
};

const TorrentHealth = ({ url, seeders = 0, leechers = 1 }) => {
  let color;
  let health;
  let ratio = seeders / leechers;

  if (seeders > 20) {
    health = "good";
    color = "success";
  } else {
    if (ratio > 1) {
      health = "medium";
      color = "warning";
    } else {
      health = "bad";
      color = "danger";
    }
  }

  const className = `align-self-start text text-center text-${color}`;
  const tooltip = (
    <Tooltip id={`tooltip-health-${url}`}>
      <p>
        <span className={className}>Health: {health}</span>
      </p>
      <p>Seeders: {seeders}</p>
      <p>Leechers: {leechers}</p>
    </Tooltip>
  );

  return (
    <OverlayTrigger placement="right" overlay={tooltip}>
      <span className={className}>
        <i className="fa fa-circle" aria-hidden="true"></i>
      </span>
    </OverlayTrigger>
  );
};
TorrentHealth.propTypes = {
  url: PropTypes.string,
  seeders: PropTypes.number,
  leechers: PropTypes.number,
};