Add SearchRenderer handles for libzim structures

Introduces a new member mp_search that houses the zim::Search object,
adds a new constructor for this purpose. This commit also add an
overload for getHtml that takes start and end integers as arguments
since they are not part of the search object we include.

include/search_renderer.h

@@ -21,6 +21,7 @@
 #define KIWIX_SEARCH_RENDERER_H
 
 #include <string>
+#include <zim/search.h>
 
 namespace kiwix
 {
@@ -40,6 +41,8 @@ class SearchRenderer
    *                          Used to generate pagination links.
    */
   SearchRenderer(Searcher* searcher, NameMapper* mapper);
+  SearchRenderer(zim::SearchResultSet srs, NameMapper* mapper,
+                 unsigned int start, unsigned int estimatedResultCount);
 
   ~SearchRenderer();
 
@@ -74,7 +77,7 @@ class SearchRenderer
 
  protected:
   std::string beautifyInteger(const unsigned int number);
-  Searcher* mp_searcher;
+  zim::SearchResultSet m_srs;
   NameMapper* mp_nameMapper;
   std::string searchContent;
   std::string searchPattern;

include/searcher.h

@@ -32,6 +32,8 @@
 #include "tools/pathTools.h"
 #include "tools/stringTools.h"
 
+#include <zim/search.h>
+
 using namespace std;
 
 namespace kiwix
@@ -142,6 +144,11 @@ class Searcher
    */
   unsigned int getEstimatedResultCount();
 
+  /**
+   * Get a SearchResultSet object for current search
+   */
+  zim::SearchResultSet getSearchResultSet();
+
   unsigned int getResultStart() { return resultStart; }
   unsigned int getResultEnd() { return resultEnd; }
 

src/search_renderer.cpp

@@ -37,10 +37,22 @@ namespace kiwix
 
 /* Constructor */
 SearchRenderer::SearchRenderer(Searcher* searcher, NameMapper* mapper)
-    : mp_searcher(searcher),
+    : m_srs(searcher->getSearchResultSet()),
       mp_nameMapper(mapper),
       protocolPrefix("zim://"),
-      searchProtocolPrefix("search://?")
+      searchProtocolPrefix("search://?"),
+      estimatedResultCount(searcher->getEstimatedResultCount()),
+      resultStart(searcher->getResultStart())
+{}
+
+SearchRenderer::SearchRenderer(zim::SearchResultSet srs, NameMapper* mapper,
+                      unsigned int start, unsigned int estimatedResultCount)
+    : m_srs(srs),
+      mp_nameMapper(mapper),
+      protocolPrefix("zim://"),
+      searchProtocolPrefix("search://?"),
+      estimatedResultCount(estimatedResultCount),
+      resultStart(start)
 {}
 
 /* Destructor */
@@ -70,29 +82,26 @@ std::string SearchRenderer::getHtml()
 {
   kainjow::mustache::data results{kainjow::mustache::data::type::list};
 
-  mp_searcher->restart_search();
-  Result* p_result = NULL;
-  while ((p_result = mp_searcher->getNextResult())) {
+  for (auto it = m_srs.begin(); it != m_srs.end(); it++) {
     kainjow::mustache::data result;
-    result.set("title", p_result->get_title());
-    result.set("url", p_result->get_url());
-    result.set("snippet", p_result->get_snippet());
-    result.set("resultContentId", mp_nameMapper->getNameForId(p_result->get_zimId()));
+    result.set("title", it.getTitle());
+    result.set("url", it.getPath());
+    result.set("snippet", it.getSnippet());
+    std::ostringstream s;
+    s << it.getZimId();
+    result.set("resultContentId", mp_nameMapper->getNameForId(s.str()));
 
-    if (p_result->get_wordCount() >= 0) {
-      result.set("wordCount", kiwix::beautifyInteger(p_result->get_wordCount()));
+    if (it.getWordCount() >= 0) {
+      result.set("wordCount", kiwix::beautifyInteger(it.getWordCount()));
     }
 
     results.push_back(result);
-    delete p_result;
   }
 
   // pages
   kainjow::mustache::data pages{kainjow::mustache::data::type::list};
 
-  auto resultStart = mp_searcher->getResultStart();
   auto resultEnd = 0U;
-  auto estimatedResultCount = mp_searcher->getEstimatedResultCount();
   auto currentPage = 0U;
   auto pageStart = 0U;
   auto pageEnd = 0U;

src/searcher.cpp

@@ -228,6 +228,11 @@ unsigned int Searcher::getEstimatedResultCount()
   return this->estimatedResultCount;
 }
 
+zim::SearchResultSet Searcher::getSearchResultSet()
+{
+  return *(this->internal);
+}
+
 _Result::_Result(zim::SearchResultSet::iterator iterator)
     : iterator(iterator)
 {