import './settings.css';

import { useRef, useState } from 'preact/hooks';
import { useSnapshot } from 'valtio';

import Avatar from '../components/avatar';
import Icon from '../components/icon';
import Link from '../components/link';
import NameText from '../components/name-text';
import RelativeTime from '../components/relative-time';
import states from '../utils/states';
import store from '../utils/store';

/*
  Settings component that shows these settings:
  - Accounts list for switching
  - Dark/light/auto theme switch (done with adding/removing 'is-light' or 'is-dark' class on the body)
*/

function Settings({ onClose }) {
  const snapStates = useSnapshot(states);
  // Accounts
  const accounts = store.local.getJSON('accounts');
  const currentAccount = store.session.get('currentAccount');
  const currentTheme = store.local.get('theme') || 'auto';
  const themeFormRef = useRef();
  const moreThanOneAccount = accounts.length > 1;
  const [currentDefault, setCurrentDefault] = useState(0);

  return (
    <div id="settings-container" class="sheet" tabIndex="-1">
      <main>
        {/* <button type="button" class="close-button plain large" onClick={onClose}>
        <Icon icon="x" alt="Close" />
      </button> */}
        <h2>Accounts</h2>
        <section>
          <ul class="accounts-list">
            {accounts.map((account, i) => {
              const isCurrent = account.info.id === currentAccount;
              const isDefault = i === (currentDefault || 0);
              return (
                <li>
                  <div>
                    {moreThanOneAccount && (
                      <span class={`current ${isCurrent ? 'is-current' : ''}`}>
                        <Icon icon="check-circle" alt="Current" />
                      </span>
                    )}
                    <Avatar url={account.info.avatarStatic} size="xxl" />
                    <NameText
                      account={account.info}
                      showAcct
                      onClick={() => {
                        states.showAccount = `${account.info.username}@${account.instanceURL}`;
                      }}
                    />
                  </div>
                  <div class="actions">
                    {isDefault && moreThanOneAccount && (
                      <>
                        <span class="tag">Default</span>{' '}
                      </>
                    )}
                    {!isCurrent && (
                      <button
                        type="button"
                        class="light"
                        onClick={() => {
                          store.session.set('currentAccount', account.info.id);
                          location.reload();
                        }}
                      >
                        <Icon icon="transfer" /> Switch
                      </button>
                    )}
                    <div>
                      {!isDefault && moreThanOneAccount && (
                        <button
                          type="button"
                          class="plain small"
                          onClick={() => {
                            // Move account to the top of the list
                            accounts.splice(i, 1);
                            accounts.unshift(account);
                            store.local.setJSON('accounts', accounts);
                            setCurrentDefault(i);
                          }}
                        >
                          Set as default
                        </button>
                      )}
                      {isCurrent && (
                        <>
                          {' '}
                          <button
                            type="button"
                            class="plain small"
                            onClick={() => {
                              const yes = confirm(
                                'Are you sure you want to log out?',
                              );
                              if (!yes) return;
                              accounts.splice(i, 1);
                              store.local.setJSON('accounts', accounts);
                              location.reload();
                            }}
                          >
                            Log out
                          </button>
                        </>
                      )}
                    </div>
                  </div>
                </li>
              );
            })}
          </ul>
          {moreThanOneAccount && (
            <p>
              <small>
                Note: <i>Default</i> account will always be used for first load.
                Switched accounts will persist during the session.
              </small>
            </p>
          )}
          <p style={{ textAlign: 'end' }}>
            <Link to="/login" class="button" onClick={onClose}>
              Add new account
            </Link>
          </p>
        </section>
        <h2>Settings</h2>
        <ul class="section">
          <li>
            <div>
              <label>Appearance</label>
            </div>
            <div>
              <form
                ref={themeFormRef}
                onInput={(e) => {
                  console.log(e);
                  e.preventDefault();
                  const formData = new FormData(themeFormRef.current);
                  const theme = formData.get('theme');
                  const html = document.documentElement;

                  if (theme === 'auto') {
                    html.classList.remove('is-light', 'is-dark');
                  } else {
                    html.classList.toggle('is-light', theme === 'light');
                    html.classList.toggle('is-dark', theme === 'dark');
                  }
                  document
                    .querySelector('meta[name="color-scheme"]')
                    .setAttribute('content', theme);

                  if (theme === 'auto') {
                    store.local.del('theme');
                  } else {
                    store.local.set('theme', theme);
                  }
                }}
              >
                <div class="radio-group">
                  <label>
                    <input
                      type="radio"
                      name="theme"
                      value="light"
                      defaultChecked={currentTheme === 'light'}
                    />
                    <span>Light</span>
                  </label>
                  <label>
                    <input
                      type="radio"
                      name="theme"
                      value="dark"
                      defaultChecked={currentTheme === 'dark'}
                    />
                    <span>Dark</span>
                  </label>
                  <label>
                    <input
                      type="radio"
                      name="theme"
                      value="auto"
                      defaultChecked={
                        currentTheme !== 'light' && currentTheme !== 'dark'
                      }
                    />
                    <span>Auto</span>
                  </label>
                </div>
              </form>
            </div>
          </li>
          <li>
            <label>
              <input
                type="checkbox"
                checked={snapStates.settings.boostsCarousel}
                onChange={(e) => {
                  states.settings.boostsCarousel = e.target.checked;
                }}
              />{' '}
              Boosts carousel (experimental)
            </label>
          </li>
        </ul>
        <h2>Hidden features</h2>
        <section>
          <div>
            <button
              type="button"
              class="light"
              onClick={() => {
                states.showDrafts = true;
                states.showSettings = false;
              }}
            >
              Unsent drafts
            </button>
          </div>
        </section>
        <h2>About</h2>
        <section>
          <p>
            <a href="https://github.com/cheeaun/phanpy" target="_blank">
              Built
            </a>{' '}
            by{' '}
            <a
              href="https://mastodon.social/@cheeaun"
              // target="_blank"
              onClick={(e) => {
                e.preventDefault();
                states.showAccount = 'cheeaun@mastodon.social';
              }}
            >
              @cheeaun
            </a>
            .
          </p>
          {__BUILD_TIME__ && (
            <p>
              Last build: <RelativeTime datetime={new Date(__BUILD_TIME__)} />{' '}
              {__COMMIT_HASH__ && (
                <>
                  (
                  <a
                    href={`https://github.com/cheeaun/phanpy/commit/${__COMMIT_HASH__}`}
                    target="_blank"
                  >
                    <code>{__COMMIT_HASH__}</code>
                  </a>
                  )
                </>
              )}
            </p>
          )}
        </section>
      </main>
    </div>
  );
}

export default Settings;