devide addDepthCondition as a module

packages/remark-lsx/src/server/routes/list-pages/add-depth-condition.ts

@@ -0,0 +1,45 @@
+import { OptionParser } from '@growi/core/dist/plugin';
+import { pagePathUtils } from '@growi/core/dist/utils';
+import createError from 'http-errors';
+
+import type { PageQuery } from './generate-base-query';
+
+const { isTopPage } = pagePathUtils;
+
+export const addDepthCondition = (query: PageQuery, pagePath: string, optionsDepth: true | string | null): PageQuery => {
+  // when option strings is 'depth=', the option value is true
+  if (optionsDepth == null || optionsDepth === true) {
+    throw createError(400, 'The value of depth option is invalid.');
+  }
+
+  const range = OptionParser.parseRange(optionsDepth);
+
+  if (range == null) {
+    return query;
+  }
+
+  const start = range.start;
+  const end = range.end;
+
+  // check start
+  if (start < 1) {
+    throw createError(400, `specified depth is [${start}:${end}] : the start must be larger or equal than 1`);
+  }
+
+  // count slash
+  const slashNum = isTopPage(pagePath)
+    ? 1
+    : pagePath.split('/').length;
+  const depthStart = slashNum + start - 1;
+  const depthEnd = slashNum + end - 1;
+
+  if (end < 0) {
+    return query.and([
+      { path: new RegExp(`^(\\/[^\\/]*){${depthStart},}$`) },
+    ]);
+  }
+
+  return query.and([
+    { path: new RegExp(`^(\\/[^\\/]*){${depthStart},${depthEnd}}$`) },
+  ]);
+};

packages/remark-lsx/src/server/routes/list-pages/index.ts

@@ -1,11 +1,11 @@
 
 import type { IUser } from '@growi/core';
-import { OptionParser } from '@growi/core/dist/plugin';
-import { pathUtils, pagePathUtils } from '@growi/core/dist/utils';
+import { pathUtils } from '@growi/core/dist/utils';
 import escapeStringRegexp from 'escape-string-regexp';
 import type { Request, Response } from 'express';
 import createError, { isHttpError } from 'http-errors';
 
+import { addDepthCondition } from './add-depth-condition';
 import { addNumCondition } from './add-num-condition';
 import { addSortCondition } from './add-sort-condition';
 import { generateBaseQuery, type PageQuery } from './generate-base-query';
@@ -16,38 +16,6 @@ const DEFAULT_PAGES_NUM = 50;
 
 
 const { addTrailingSlash } = pathUtils;
-const { isTopPage } = pagePathUtils;
-
-function addDepthCondition(query, pagePath, optionsDepth): PageQuery {
-  // when option strings is 'depth=', the option value is true
-  if (optionsDepth == null || optionsDepth === true) {
-    throw createError(400, 'The value of depth option is invalid.');
-  }
-
-  const range = OptionParser.parseRange(optionsDepth);
-
-  if (range == null) {
-    return query;
-  }
-
-  const start = range.start;
-  const end = range.end;
-
-  if (start < 1 || end < 1) {
-    throw createError(400, `specified depth is [${start}:${end}] : start and end are must be larger than 1`);
-  }
-
-  // count slash
-  const slashNum = isTopPage(pagePath)
-    ? 1
-    : pagePath.split('/').length;
-  const depthStart = slashNum; // start is not affect to fetch page
-  const depthEnd = slashNum + end - 1;
-
-  return query.and({
-    path: new RegExp(`^(\\/[^\\/]*){${depthStart},${depthEnd}}$`),
-  });
-}
 
 /**
  * add filter condition that filter fetched pages