import React, { useState, useEffect } from "react";
import { ButtonToolbar, Button, Table, Modal, Row, Col } from "react-bootstrap";
import { Link } from "react-router-dom";
import Page from "../layouts/page";
import Pagination from "../components/pagination";

function FailedPage({ client, history, match }) {
  const [data, setData] = useState({
    failed: [],
    counts: { failed: 0 },
    focusedException: {
      exception: "",
      queue: "",
      worker: "",
      error: "",
      payload: { args: {} },
      renderedStack: "",
    },
    perPage: 15,
    showModal: false,
    page: parseInt(match.params.page || 0),
  });

  useEffect(() => {
    data.page = parseInt(match.params.page || 0);
    setData({ ...data });
  }, [match.params]);

  useEffect(() => {
    loadData();
  }, [data.page]);

  async function loadData() {
    const response = await client.action(
      {
        start: data.page * data.perPage,
        stop: data.page * data.perPage + (data.perPage - 1),
      },
      "/api/1/resque/resqueFailed"
    );
    data.failed = response.failed;
    setData({ ...data });
    await loadFailedCount();
  }

  async function loadFailedCount() {
    const response = await client.action({}, "/api/1/resque/resqueFailedCount");
    data.counts = { failed: response.failedCount };
    setData({ ...data });
  }

  async function removeFailedJob(index) {
    await client.action({ id: index }, "/api/1/resque/removeFailed", "POST");
    await loadData();
  }

  async function retryFailedJob(index) {
    await client.action(
      { id: index },
      "/api/1/resque/retryAndRemoveFailed",
      "POST"
    );
    await loadData();
  }

  async function removeAllFailedJobs() {
    if (window.confirm("Are you sure?")) {
      await client.action({}, "/api/1/resque/removeAllFailed", "POST");
      await loadData();
    }
  }

  async function retryAllFailedJobs() {
    if (window.confirm("Are you sure?")) {
      await client.action({}, "/api/1/resque/retryAndRemoveAllFailed", "POST");
      await loadData();
    }
  }

  function renderFailureStack(index) {
    const focusedException = data.failed[index];
    focusedException.renderedStack = "";
    if (focusedException.backtrace) {
      focusedException.renderedStack = focusedException.backtrace.join("\r\n");
    }

    data.focusedException = focusedException;
    data.showModal = true;
    setData({ ...data });
  }

  function onHide() {
    data.showModal = false;
    setData({ ...data });
  }

  let index = -1 + data.perPage * data.page;
  let argCounter = -1;

  return (
    <Page client={client}>
      <h1>Failed Jobs ({data.counts.failed})</h1>

      <Row>
        <Col md={12}>
          <ButtonToolbar>
            <Button onClick={retryAllFailedJobs} size="sm" variant="warning">
              Retry All
            </Button>
            &nbsp;
            <Button onClick={removeAllFailedJobs} size="sm" variant="danger">
              Remove All
            </Button>
          </ButtonToolbar>
        </Col>
        <br />
        <br />
      </Row>

      <Row>
        <Col md={12}>
          <Table id="failureTable" striped bordered hover size="sm">
            <thead>
              <tr>
                <th>&nbsp;</th>
                <th>Date</th>
                <th>Exception</th>
                <th>Queue</th>
                <th>Method</th>
                <th>Worker</th>
                <th>Arguments</th>
                <th>&nbsp;</th>
                <th>&nbsp;</th>
              </tr>
            </thead>
            <tbody>
              {data.failed.map((f) => {
                index++;

                return (
                  <tr key={`failure-${index}`}>
                    <td>{index + 1}</td>
                    <td>{f.failed_at}</td>
                    <td>
                      <a onClick={renderFailureStack.bind(null, index)}>➕</a>
                      &nbsp;
                      <strong>
                        {f.exception}: {f.error}
                      </strong>
                    </td>
                    <td>
                      <span className="text-success">
                        <Link to={`/queue/${f.queue}`}>{f.queue}</Link>
                      </span>
                    </td>
                    <td>{f.payload.class}</td>
                    <td>{f.worker}</td>
                    <td>
                      <ul>
                        {f.payload.args.map((a) => {
                          argCounter++;
                          return (
                            <li key={`arg-${argCounter}`}>
                              {JSON.stringify(a)}
                            </li>
                          );
                        })}
                      </ul>
                    </td>
                    <td>
                      <Button
                        onClick={retryFailedJob.bind(null, index)}
                        variant="warning"
                        size="sm"
                      >
                        Retry
                      </Button>
                    </td>
                    <td>
                      <Button
                        onClick={removeFailedJob.bind(null, index)}
                        variant="danger"
                        size="sm"
                      >
                        Remove
                      </Button>
                    </td>
                  </tr>
                );
              })}
            </tbody>
          </Table>

          <Pagination
            history={history}
            page={data.page}
            total={data.counts.failed}
            perPage={data.perPage}
            base="/failed"
          />
        </Col>
      </Row>

      <Modal show={data.showModal} onHide={onHide} size="xl">
        <Modal.Header>
          <h3>
            {data.focusedException.exception}: {data.focusedException.error}
          </h3>
        </Modal.Header>
        <Modal.Body>
          <p>
            <strong>Queue</strong>: {data.focusedException.queue}{" "}
          </p>
          <p>
            <strong>Worker</strong>: {data.focusedException.worker}{" "}
          </p>
          <p>
            <strong>Payload</strong>:
          </p>
          <pre>
            {data.focusedException.payload
              ? JSON.stringify(data.focusedException.payload.args)
              : null}
          </pre>
          <p>
            <strong>Stack</strong>:
          </p>
          <pre>{data.focusedException.renderedStack}</pre>
        </Modal.Body>
        <Modal.Footer>
          <Button size="sm" onClick={onHide}>
            Close
          </Button>
        </Modal.Footer>
      </Modal>
    </Page>
  );
}

export default FailedPage;