1 files changed, 43 insertions, 0 deletions
diff --git a/battleNetApi/include/hearthstoneApi.hpp b/battleNetApi/include/hearthstoneApi.hpp
new file mode 100644
index 0000000..c11acc7
--- /dev/null
+++ b/battleNetApi/include/hearthstoneApi.hpp
@@ -0,0 +1,43 @@
+#pragma once
+#include "token.hpp"
+#include <iostream>
+#include <regex>
+#include <string>
+
+class HearthstoneApi {
+  public:
+    HearthstoneApi(Token &&iToken);
+    std::uint64_t numberOfCards(const std::string &iApiResponse) const;
+
+  private:
+    std::string authorizationHeader();
+    std::string makeApiRequest(const std::string &iUrl) const;
+    static size_t curlCallbackStringOutput(void *iContent, size_t iSize, size_t iNmemb, std::string *iS);
+
+    /**
+     * @brief
+     * @param[in] iJsonContent The std::string which contains Json (Battle.net API response for instance)
+     * @param[in] iKeyValueRegex The regex used to retrieve value from (key, value) pair
+     * An example: "\"cardCount\":(\\d+)"
+     */
+    template <typename T> T valueInJson(const std::string &iJsonContent, const std::string &iKeyValueRegex) const {
+        const std::regex iRegex{iKeyValueRegex};
+        std::smatch aMatches;
+        if (std::regex_search(iJsonContent, aMatches, iRegex)) {
+            const std::string kValueString{aMatches[1].str()};
+            T aValue;
+            const auto kConversionStatus =
+                std::from_chars(kValueString.data(), kValueString.data() + kValueString.size(), aValue);
+            if (kConversionStatus.ec == std::errc{}) {
+                return aValue;
+            }
+        }
+        std::cerr << std::format("Unable to find value with regex: '{}'\n", iKeyValueRegex);
+        return 0;
+    }
+
+    Token mToken;
+    std::string mAuthorizationHeader; //<! Bearer authorization string for OAuth 2.0 header
+
+    friend class HearthstoneApiMock;
+};