Работа над opds

server/core/opds/GenrePage.js

@@ -0,0 +1,72 @@
+const BasePage = require('./BasePage');
+
+class GenrePage extends BasePage {
+    constructor(config) {
+        super(config);
+
+        this.id = 'genre';
+        this.title = 'Жанры';
+
+    }
+
+    async body(req) {
+        const result = {};
+
+        const query = {
+            from: req.query.from || '',
+            section: req.query.section || '',
+        };
+
+        const entry = [];
+        if (query.from) {
+
+            if (query.section) {
+                //выбираем подразделы
+                const {genreSection} = await this.getGenres();
+                const section = genreSection.get(query.section);
+
+                if (section) {
+                    let id = 0;
+                    const all = [];
+                    for (const g of section) {
+                        all.push(g.value);
+                        entry.push(
+                            this.makeEntry({
+                                id: ++id,
+                                title: g.name,
+                                link: this.navLink({href: `/${encodeURIComponent(query.from)}?genre=${encodeURIComponent(g.value)}`}),
+                            })
+                        );
+                    }
+
+                    entry.unshift(
+                        this.makeEntry({
+                            id: 'whole_section',
+                            title: '[Весь раздел]',
+                            link: this.navLink({href: `/${encodeURIComponent(query.from)}?genre=${encodeURIComponent(all.join(','))}`}),
+                        })
+                    );
+                }
+            } else {
+                //выбираем разделы
+                const {genreTree} = await this.getGenres();
+                let id = 0;
+                for (const section of genreTree) {
+                    entry.push(
+                        this.makeEntry({
+                            id: ++id,
+                            title: section.name,
+                            link: this.navLink({href: `/genre?from=${encodeURIComponent(query.from)}&section=${encodeURIComponent(section.name)}`}),
+                        })
+                    );
+                }
+            }
+        }
+
+        result.entry = entry;
+
+        return this.makeBody(result, req);
+    }
+}
+
+module.exports = GenrePage;