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/* ldgallery - A static generator which turns a collection of tagged
-- pictures into a searchable web gallery.
--
-- Copyright (C) 2019-2022 Guillaume FOUET
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { DirectoryItem, DownloadableItem, Item } from '@/@types/gallery';
import { ItemType } from '@/@types/itemType';
import {
faFile,
faFileAlt,
faFileAudio,
faFilePdf,
faBook,
faFileVideo,
faFolder,
faHome,
faImage,
IconDefinition,
} from '@fortawesome/free-solid-svg-icons';
import { isDirectory } from './itemGuards';
const ICON_BY_TYPE: Record<ItemType, IconDefinition> = {
directory: faFolder,
picture: faImage,
plaintext: faFileAlt,
markdown: faFileAlt,
pdf: faFilePdf,
epub: faBook,
video: faFileVideo,
audio: faFileAudio,
other: faFile,
};
// ---
export const useNavigation = () => {
// Searches for an item by path from a root item (navigation)
function searchCurrentItemPath(root: Item, path: string): Item[] {
if (path === root.path) return [root];
if (isDirectory(root) && path.startsWith(root.path)) {
const itemChain = root.properties.items
.map(item => searchCurrentItemPath(item, path))
.find(itemChain => itemChain.length > 0);
if (itemChain) return [root, ...itemChain];
}
return [];
}
// Normalize a string to lowercase, no-accents
function normalize(value: string) {
return value
.normalize('NFD')
.replace(/[\u0300-\u036f]/g, '')
.toLowerCase();
}
function getLastDirectory(itemPath: Item[]): DirectoryItem {
for (let idx = itemPath.length - 1; idx >= 0; idx--) {
const item = itemPath[idx];
if (isDirectory(item)) return item;
}
throw new Error('No directory found');
}
// Get the icon for an item
function getIcon(item: Item): IconDefinition {
if (item.path.length <= 1) return faHome;
return ICON_BY_TYPE[item.properties.type];
}
// Get the file name of an item, without its cache timestamp
function getFileName(item: Item): string {
if (isDirectory(item)) return item.title;
const timeStamped = (item as DownloadableItem).properties.resource.split('/').pop() ?? '';
return timeStamped.split('?')[0];
}
return {
searchCurrentItemPath,
normalize,
getLastDirectory,
getIcon,
getFileName,
};
};
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