import './report-modal.css';

import { Fragment } from 'preact';
import { useMemo, useRef, useState } from 'preact/hooks';

import { api } from '../utils/api';
import showToast from '../utils/show-toast';
import { getCurrentInstance } from '../utils/store-utils';

import AccountBlock from './account-block';
import Icon from './icon';
import Loader from './loader';
import Status from './status';

// NOTE: `dislike` hidden for now, it's actually not used for reporting
// Mastodon shows another screen for unfollowing, muting or blocking instead of reporting

const CATEGORIES = [, /*'dislike'*/ 'spam', 'legal', 'violation', 'other'];
// `violation` will be set if there are `rule_ids[]`

const CATEGORIES_INFO = {
  // dislike: {
  //   label: 'Dislike',
  //   description: 'Not something you want to see',
  // },
  spam: {
    label: 'Spam',
    description: 'Malicious links, fake engagement, or repetitive replies',
  },
  legal: {
    label: 'Illegal',
    description: "Violates the law of your or the server's country",
  },
  violation: {
    label: 'Server rule violation',
    description: 'Breaks specific server rules',
    stampLabel: 'Violation',
  },
  other: {
    label: 'Other',
    description: "Issue doesn't fit other categories",
    excludeStamp: true,
  },
};

function ReportModal({ account, post, onClose }) {
  const { masto } = api();
  const [uiState, setUIState] = useState('default');
  const [username, domain] = account.acct.split('@');

  const [rules, currentDomain] = useMemo(() => {
    const { rules, domain } = getCurrentInstance();
    return [rules || [], domain];
  });

  const [selectedCategory, setSelectedCategory] = useState(null);
  const [showRules, setShowRules] = useState(false);

  const rulesRef = useRef(null);
  const [hasRules, setHasRules] = useState(false);

  return (
    <div class="report-modal-container">
      <div class="top-controls">
        <h1>{post ? 'Report Post' : `Report @${username}`}</h1>
        <button
          type="button"
          class="plain4 small"
          disabled={uiState === 'loading'}
          onClick={() => onClose()}
        >
          <Icon icon="x" size="xl" />
        </button>
      </div>
      <main>
        <div class="report-preview">
          {post ? (
            <Status status={post} size="s" previewMode />
          ) : (
            <AccountBlock
              account={account}
              avatarSize="xxl"
              useAvatarStatic
              showStats
              showActivity
            />
          )}
        </div>
        {!!selectedCategory &&
          !CATEGORIES_INFO[selectedCategory].excludeStamp && (
            <span
              class="rubber-stamp"
              key={selectedCategory}
              aria-hidden="true"
            >
              {CATEGORIES_INFO[selectedCategory].stampLabel ||
                CATEGORIES_INFO[selectedCategory].label}
              <small>Pending review</small>
            </span>
          )}
        <form
          onSubmit={(e) => {
            e.preventDefault();

            const formData = new FormData(e.target);
            const entries = Object.fromEntries(formData.entries());
            console.log('ENTRIES', entries);

            let { category, comment, forward } = entries;
            if (!comment) comment = undefined;
            if (forward === 'on') forward = true;
            const ruleIds =
              category === 'violation'
                ? Object.entries(entries)
                    .filter(([key]) => key.startsWith('rule_ids'))
                    .map(([key, value]) => value)
                : undefined;

            const params = {
              category,
              comment,
              forward,
              ruleIds,
            };
            console.log('PARAMS', params);

            setUIState('loading');
            (async () => {
              try {
                await masto.v1.reports.create({
                  accountId: account.id,
                  statusIds: post?.id ? [post.id] : undefined,
                  category,
                  comment,
                  ruleIds,
                  forward,
                });
                setUIState('success');
                showToast(post ? 'Post reported' : 'Profile reported');
                onClose();
              } catch (error) {
                console.error(error);
                setUIState('error');
                showToast(
                  error?.message ||
                    (post
                      ? 'Unable to report post'
                      : 'Unable to report profile'),
                );
              }
            })();
          }}
        >
          <p>
            {post
              ? `What's the issue with this post?`
              : `What's the issue with this profile?`}
          </p>
          <section class="report-categories">
            {CATEGORIES.map((category) =>
              category === 'violation' && !rules?.length ? null : (
                <Fragment key={category}>
                  <label class="report-category">
                    <input
                      type="radio"
                      name="category"
                      value={category}
                      required
                      disabled={uiState === 'loading'}
                      onChange={(e) => {
                        setSelectedCategory(e.target.value);
                        setShowRules(e.target.value === 'violation');
                      }}
                    />
                    <span>
                      {CATEGORIES_INFO[category].label} &nbsp;
                      <small class="ib insignificant">
                        {CATEGORIES_INFO[category].description}
                      </small>
                    </span>
                  </label>
                  {category === 'violation' && !!rules?.length && (
                    <div
                      class="shazam-container no-animation"
                      hidden={!showRules}
                    >
                      <div class="shazam-container-inner">
                        <div class="report-rules" ref={rulesRef}>
                          {rules.map((rule, i) => (
                            <label class="report-rule" key={rule.id}>
                              <input
                                type="checkbox"
                                name={`rule_ids[${i}]`}
                                value={rule.id}
                                required={showRules && !hasRules}
                                disabled={uiState === 'loading'}
                                onChange={(e) => {
                                  const { checked } = e.target;
                                  if (checked) {
                                    setHasRules(true);
                                  } else {
                                    const checkedInputs =
                                      rulesRef.current.querySelectorAll(
                                        'input:checked',
                                      );
                                    if (!checkedInputs.length) {
                                      setHasRules(false);
                                    }
                                  }
                                }}
                              />
                              <span>{rule.text}</span>
                            </label>
                          ))}
                        </div>
                      </div>
                    </div>
                  )}
                </Fragment>
              ),
            )}
          </section>
          <section class="report-comment">
            <p>
              <label for="report-comment">Additional info</label>
            </p>
            <textarea
              maxlength="1000"
              rows="1"
              name="comment"
              id="report-comment"
              disabled={uiState === 'loading'}
            />
          </section>
          <section>
            {domain !== currentDomain && (
              <p>
                <label>
                  <input
                    type="checkbox"
                    switch
                    name="forward"
                    disabled={uiState === 'loading'}
                  />{' '}
                  <span>
                    Forward to <i>{domain}</i>
                  </span>
                </label>
              </p>
            )}
          </section>
          <footer>
            <button type="submit" disabled={uiState === 'loading'}>
              Send Report
            </button>{' '}
            <button
              type="submit"
              class="plain2"
              disabled={uiState === 'loading'}
              onClick={async () => {
                try {
                  await masto.v1.accounts.$select(account.id).mute(); // Infinite duration
                  showToast(`Muted ${username}`);
                } catch (e) {
                  console.error(e);
                  showToast(`Unable to mute ${username}`);
                }
                // onSubmit will still run
              }}
            >
              Send Report <small class="ib">+ Mute profile</small>
            </button>{' '}
            <button
              type="submit"
              class="plain2"
              disabled={uiState === 'loading'}
              onClick={async () => {
                try {
                  await masto.v1.accounts.$select(account.id).block();
                  showToast(`Blocked ${username}`);
                } catch (e) {
                  console.error(e);
                  showToast(`Unable to block ${username}`);
                }
                // onSubmit will still run
              }}
            >
              Send Report <small class="ib">+ Block profile</small>
            </button>
            <Loader hidden={uiState !== 'loading'} />
          </footer>
        </form>
      </main>
    </div>
  );
}

export default ReportModal;