import React, { createContext } from 'react';
import { config as mediacmsConfig } from '../settings/config.js';
import { translateString } from '../../utils/helpers/';

const config = mediacmsConfig(window.MediaCMS);

const links = config.url;
const theme = config.theme;
const user = config.member;

const hasThemeSwitcher = theme.switch.enabled && 'header' === theme.switch.position;

function popupTopNavItems() {
  const items = [];

  if (!user.is.anonymous) {
    if (user.can.addMedia) {
      items.push({
        link: links.user.addMedia,
        icon: 'video_call',
        text: translateString('Upload media'),
        itemAttr: {
          className: 'visible-only-in-small',
        },
      });

      if (user.pages.media) {
        items.push({
          link: user.pages.media,
          icon: 'video_library',
          text: translateString('My media'),
        });
      }
    }

    items.push({
      link: links.signout,
      icon: 'exit_to_app',
      text: translateString('Sign out'),
    });
  }

  return items;
}

function popupMiddleNavItems() {
  const items = [];

  if (hasThemeSwitcher) {
    items.push({
      itemType: 'open-subpage',
      icon: 'brightness_4',
      iconPos: 'left',
      text: 'Switch theme',
      buttonAttr: {
        className: 'change-page',
        'data-page-id': 'switch-theme',
      },
    });
  }

  if (user.is.anonymous) {
    if (user.can.login) {
      items.push({
        itemType: 'link',
        icon: 'login',
        iconPos: 'left',
        text: translateString('Sign in'),
        link: links.signin,
        linkAttr: {
          className: hasThemeSwitcher ? 'visible-only-in-small' : 'visible-only-in-extra-small',
        },
      });
    }

    if (user.can.register) {
      items.push({
        itemType: 'link',
        icon: 'person_add',
        iconPos: 'left',
        text: translateString('Register'),
        link: links.register,
        linkAttr: {
          className: hasThemeSwitcher ? 'visible-only-in-small' : 'visible-only-in-extra-small',
        },
      });
    }
  } else {
    items.push({
      link: links.user.editProfile,
      icon: 'brush',
      text: translateString('Edit profile'),
    });

    if (user.can.changePassword) {
      items.push({
        link: links.changePassword,
        icon: 'lock',
        text: translateString('Change password'),
      });
    }

    items.push({
      itemType: 'button',
      icon: 'delete_forever',
      text: translateString('Delete account'),
      buttonAttr: {
        onClick: (e) => {
          e.preventDefault();
          const confirmed = window.confirm(
            'Are you sure you want to delete your account? This action cannot be undone and will permanently remove all your data, including your media and playlists.'
          );

          if (confirmed) {
            const csrfToken = document.querySelector('[name=csrfmiddlewaretoken]')?.value ||
                            document.cookie.split('; ').find(row => row.startsWith('csrftoken='))?.split('=')[1];

            fetch(`/api/v1/users/${user.username}`, {
              method: 'DELETE',
              headers: {
                'X-CSRFToken': csrfToken,
              },
            })
              .then((response) => {
                if (response.ok) {
                  alert('Your account has been deleted successfully. You will be redirected to the home page.');
                  window.location.href = '/';
                } else {
                  return response.json().then((data) => {
                    throw new Error(data.detail || 'Failed to delete account.');
                  });
                }
              })
              .catch((error) => {
                alert('Error deleting account: ' + error.message);
                console.error('Error deleting account:', error);
              });
          }
        },
      },
    });
  }

  return items;
}

function popupBottomNavItems() {
  const items = [];

  if (user.is.admin) {
    items.push({
      link: links.admin,
      icon: 'admin_panel_settings',
      text: 'MediaCMS administration',
    });
  }

  return items;
}

export const HeaderContext = createContext({
  hasThemeSwitcher,
  popupNavItems: {
    top: popupTopNavItems(),
    middle: popupMiddleNavItems(),
    bottom: popupBottomNavItems(),
  },
});

export const HeaderConsumer = HeaderContext.Consumer;