From 307b78f60d3335a76a6343696f513d7d3baa4713 Mon Sep 17 00:00:00 2001
From: Book Pauk <bookpauk@gmail.com>
Date: Wed, 7 Dec 2022 20:55:30 +0700
Subject: [PATCH] =?UTF-8?q?=D0=9D=D0=B5=D0=B1=D0=BE=D0=BB=D1=8C=D1=88?=
 =?UTF-8?q?=D0=B8=D0=B5=20=D0=B4=D0=BE=D1=80=D0=B0=D0=B1=D0=BE=D1=82=D0=BA?=
 =?UTF-8?q?=D0=B8=20opds?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 server/core/opds/SearchHelpPage.js | 59 ++++++++++++++++++++++++++++++
 server/core/opds/SearchPage.js     | 11 +++++-
 server/core/opds/index.js          |  3 ++
 3 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 server/core/opds/SearchHelpPage.js

diff --git a/server/core/opds/SearchHelpPage.js b/server/core/opds/SearchHelpPage.js
new file mode 100644
index 0000000..5c71751
--- /dev/null
+++ b/server/core/opds/SearchHelpPage.js
@@ -0,0 +1,59 @@
+const he = require('he');
+
+const BasePage = require('./BasePage');
+
+class SearchHelpPage extends BasePage {
+    constructor(config) {
+        super(config);
+
+        this.id = 'search_help';
+        this.title = 'Памятка по поиску';
+
+    }
+
+    async body(req) {
+        const result = {};
+
+        result.link = this.baseLinks(req, true);
+
+        const content = `
+Формат поискового значения:
+<ul>
+    <li>
+        без префикса: значение трактуется, как "начинается с"
+    </li>
+    <li>
+        префикс "=": поиск по точному совпадению
+    </li>
+    <li>
+        префикс "*": поиск подстроки в строке
+    </li>
+    <li>
+        префикс "#": поиск подстроки в строке, но только среди значений, начинающихся не с латинского или кириллического символа
+    </li>
+    <li>
+        префикс "?": поиск пустых значений или тех, что начинаются с этого символа
+    </li>
+</ul>
+`;
+        const entry = [
+            this.makeEntry({
+                id: 'help',
+                title: this.title,
+                content: {
+                    '*ATTRS': {type: 'text/html'},
+                    '*TEXT': he.escape(content),
+                },
+                link: [
+                    this.downLink({href: '/book/fake-link', type: `application/fb2+zip`})
+                ],
+            })
+        ];
+
+        result.entry = entry;
+
+        return this.makeBody(result, req);
+    }
+}
+
+module.exports = SearchHelpPage;
\ No newline at end of file
diff --git a/server/core/opds/SearchPage.js b/server/core/opds/SearchPage.js
index a58d62f..93f3616 100644
--- a/server/core/opds/SearchPage.js
+++ b/server/core/opds/SearchPage.js
@@ -38,7 +38,7 @@ class SearchPage extends BasePage {
                     entry.push(
                         this.makeEntry({
                             id: row.id,
-                            title: `${(from === 'series' ? 'Серия: ': '')}${row[from]}`,
+                            title: `${(from === 'series' ? 'Серия: ': '')}${from === 'author' ? this.bookAuthor(row[from]) : row[from]}`,
                             link: this.navLink({href: `/${from}?${from}==${encodeURIComponent(row[from])}`}),
                             content: {
                                 '*ATTRS': {type: 'text'},
@@ -88,6 +88,15 @@ class SearchPage extends BasePage {
                         '*TEXT': `Искать по названиям книг`,
                     },
                 }),
+                this.makeEntry({
+                    id: 'search_help',
+                    title: '[Памятка по поиску]',
+                    link: this.acqLink({href: `/search-help`}),
+                    content: {
+                        '*ATTRS': {type: 'text'},
+                        '*TEXT': `Описание формата поискового значения`,
+                    },
+                }),
             ]
         }
 
diff --git a/server/core/opds/index.js b/server/core/opds/index.js
index b2cc556..bbe6895 100644
--- a/server/core/opds/index.js
+++ b/server/core/opds/index.js
@@ -9,6 +9,7 @@ const BookPage = require('./BookPage');
 
 const OpensearchPage = require('./OpensearchPage');
 const SearchPage = require('./SearchPage');
+const SearchHelpPage = require('./SearchHelpPage');
 
 module.exports = function(app, config) {
     if (!config.opds || !config.opds.enabled)
@@ -26,6 +27,7 @@ module.exports = function(app, config) {
 
     const opensearch = new OpensearchPage(config);
     const search = new SearchPage(config);
+    const searchHelp = new SearchHelpPage(config);
 
     const routes = [
         ['', root],
@@ -38,6 +40,7 @@ module.exports = function(app, config) {
 
         ['/opensearch', opensearch],
         ['/search', search],
+        ['/search-help', searchHelp],
     ];
 
     const pages = new Map();