Only one subpage

src/Page.cpp

@@ -17,19 +17,19 @@
 #include "libxml/xpath.h"
 
 
-Page::Page(const uint_fast8_t number): number(number), subpages(fetchSubpages()) {
+Page::Page(const uint_fast8_t number): m_number(number), m_subpage(fetchSubpage()) {
 }
 
 Page Page::operator--(int) const {
-    return Page(number - 1);
+    return Page(m_number - 1);
 }
 
 Page Page::operator++(int) const {
-    return Page(number + 1);
+    return Page(m_number + 1);
 }
 
 Page &Page::operator-=(int) {
-    number--;
+    m_number--;
     refresh();
     return *this;
 }
@@ -37,38 +37,36 @@ Page &Page::operator-=(int) {
 std::string Page::str() const {
     std::string ret;
 
-    for (const std::string &pageText: subpages) {
-        std::istringstream stream(pageText);
-        std::string line;
-        while (std::getline(stream, line))
-            ret += line + "\n";
+    std::istringstream stream(m_subpage);
+    std::string line;
+    while (std::getline(stream, line))
+        ret += line + "\n";
 
-        string_utils::limitConsecutiveWhitespace(ret, MAX_WHITESPACE);
-        string_utils::removeTrailingWhitespace(ret);
-    }
+    string_utils::limitConsecutiveWhitespace(ret, MAX_WHITESPACE);
+    string_utils::removeTrailingWhitespace(ret);
     return ret;
 }
 
 Page &Page::operator+=(int) {
-    number++;
+    m_number++;
     refresh();
     return *this;
 }
 
 bool Page::refresh() {
-    std::vector<std::string> newSubpages = fetchSubpages();
-    const bool replace = !contentEquals(newSubpages);
+    std::string newSubpage = fetchSubpage();
+    const bool replace = newSubpage != m_subpage;
     if (replace)
-        subpages = newSubpages;
+        m_subpage = newSubpage;
 
     return replace;
 }
 
 std::string Page::url() const {
-    return std::format("https://www.svt.se/svttext/web/pages/{}.html", number);
+    return std::format("https://www.svt.se/svttext/web/pages/{}.html", m_number);
 }
 
-std::vector<std::string> Page::fetchSubpages() const {
+std::string Page::fetchSubpage() const {
     const cpr::Response response = cpr::Get(cpr::Url{url()});
     if (response.status_code / 100 != 2)
         throw std::runtime_error("Page not found");
@@ -91,14 +89,16 @@ std::vector<std::string> Page::fetchSubpages() const {
         throw std::runtime_error("Could not evaluate XPath expression.");
     }
 
-    std::vector<std::string> pages;
+    // There's only one valid page
+    std::string page;
     if (const xmlNodeSetPtr nodes = xpathObj->nodesetval) {
-        for (int i = 0; i < nodes->nodeNr; ++i) {
+        for (int i = 0; i < nodes->nodeNr; i++) {
             xmlChar *content = xmlNodeGetContent(nodes->nodeTab[i]);
             if (!content)
                 continue;
-            pages.emplace_back(reinterpret_cast<const char *>(content));
+            page = reinterpret_cast<const char *>(content);
             xmlFree(content);
+            break;
         }
     }
 
@@ -106,16 +106,5 @@ std::vector<std::string> Page::fetchSubpages() const {
     xmlXPathFreeContext(xpathCtx);
     xmlFreeDoc(doc);
 
-    return pages;
-}
-
-bool Page::contentEquals(const std::vector<std::string> &subpagesOther) const {
-    if (subpagesOther.size() != subpages.size())
-        return false;
-
-    for (std::size_t i = 0; i < subpages.size(); i++)
-        if (subpages[i] != subpagesOther[i])
-            return false;
-
-    return true;
+    return page;
 }

src/Page.hpp

@@ -18,8 +18,8 @@ static constexpr uint_fast8_t MAX_WHITESPACE = 2;
 class Page
 {
 private:
-    uint_fast8_t number{};
-    std::vector<std::string> subpages;
+    uint_fast8_t m_number{};
+    std::string m_subpage;
 
 public:
     explicit Page(uint_fast8_t number = DEFAULT_NUMBER);
@@ -39,7 +39,7 @@ public:
 private:
     [[nodiscard]] std::string url() const;
 
-    [[nodiscard]] std::vector<std::string> fetchSubpages() const;
+    [[nodiscard]] std::string fetchSubpage() const;
 
     [[nodiscard]] bool contentEquals(const std::vector<std::string> &subpagesOther) const;
 };