Wrap optional fields with boost::optional (LinkPreviewOptions, ReplyP…

…arameters only)

include/tgbot/types/LinkPreviewOptions.h

@@ -3,6 +3,7 @@
 
 #include <memory>
 #include <string>
+#include <boost/optional.hpp>
 
 namespace TgBot {
 
@@ -19,29 +20,29 @@ class LinkPreviewOptions {
     /**
      * @brief Optional. True, if the link preview is disabled
      */
-    bool isDisabled;
+    boost::optional<bool> isDisabled;
 
     /**
      * @brief Optional. URL to use for the link preview.
      *
      * If empty, then the first URL found in the message text will be used
      */
-    std::string url;
+    boost::optional<std::string> url;
 
     /**
      * @brief Optional. True, if the media in the link preview is supposed to be shrunk; ignored if the URL isn't explicitly specified or media size change isn't supported for the preview
      */
-    bool preferSmallMedia;
+    boost::optional<bool> preferSmallMedia;
 
     /**
      * @brief Optional. True, if the media in the link preview is supposed to be enlarged; ignored if the URL isn't explicitly specified or media size change isn't supported for the preview
      */
-    bool preferLargeMedia;
+    boost::optional<bool> preferLargeMedia;
 
     /**
      * @brief Optional. True, if the link preview must be shown above the message text; otherwise, the link preview will be shown below the message text
      */
-    bool showAboveText;
+    boost::optional<bool> showAboveText;
 };
 }
 

include/tgbot/types/ReplyParameters.h

@@ -7,6 +7,7 @@
 #include <memory>
 #include <string>
 #include <vector>
+#include <boost/optional.hpp>
 
 namespace TgBot {
 
@@ -30,42 +31,42 @@ class ReplyParameters {
      *
      * Not supported for messages sent on behalf of a business account.
      */
-    std::int64_t chatId;
+    boost::optional<std::int64_t> chatId;
 
     /**
      * @brief Optional. Pass True if the message should be sent even if the specified message to be replied to is not found.
      *
      * Always False for replies in another chat or forum topic.
      * Always True for messages sent on behalf of a business account.
      */
-    bool allowSendingWithoutReply;
+    boost::optional<bool> allowSendingWithoutReply;
 
     /**
      * @brief Optional. Quoted part of the message to be replied to; 0-1024 characters after entities parsing.
      *
      * The quote must be an exact substring of the message to be replied to, including bold, italic, underline, strikethrough, spoiler, and customEmoji entities.
      * The message will fail to send if the quote isn't found in the original message.
      */
-    std::string quote;
+    boost::optional<std::string> quote;
 
     /**
      * @brief Optional. Mode for parsing entities in the quote.
      *
      * See [formatting options](https://core.telegram.org/bots/api#formatting-options) for more details.
      */
-    std::string quoteParseMode;
+    boost::optional<std::string> quoteParseMode;
 
     /**
      * @brief Optional. A JSON-serialized list of special entities that appear in the quote.
      *
      * It can be specified instead of quoteParseMode.
      */
-    std::vector<MessageEntity::Ptr> quoteEntities;
+    boost::optional<std::vector<MessageEntity::Ptr>> quoteEntities;
 
     /**
      * @brief Optional. Position of the quote in the original message in UTF-16 code units
      */
-    std::int32_t quotePosition;
+    boost::optional<std::int32_t> quotePosition;
 };
 }
 

src/TgTypeParser.cpp

@@ -675,12 +675,14 @@ std::string TgTypeParser::parseExternalReplyInfo(const ExternalReplyInfo::Ptr& o
 ReplyParameters::Ptr TgTypeParser::parseJsonAndGetReplyParameters(const boost::property_tree::ptree& data) const {
     auto result(std::make_shared<ReplyParameters>());
     result->messageId = data.get<std::int32_t>("message_id", 0);
-    result->chatId = data.get<std::int64_t>("chat_id", 0);
-    result->allowSendingWithoutReply = data.get<bool>("allow_sending_without_reply", false);
-    result->quote = data.get<std::string>("quote", "");
-    result->quoteParseMode = data.get<std::string>("quote_parse_mode", "");
-    result->quoteEntities = parseJsonAndGetArray<MessageEntity>(&TgTypeParser::parseJsonAndGetMessageEntity, data, "quote_entities");
-    result->quotePosition = data.get<std::int32_t>("quote_position", 0);
+    result->chatId = data.get_optional<std::int64_t>("chat_id");
+    result->allowSendingWithoutReply = data.get_optional<bool>("allow_sending_without_reply");
+    result->quote = data.get_optional<std::string>("quote");
+    result->quoteParseMode = data.get_optional<std::string>("quote_parse_mode");
+    if (data.find("quote_entities") != data.not_found()) {
+      result->quoteEntities = parseJsonAndGetArray<MessageEntity>(&TgTypeParser::parseJsonAndGetMessageEntity, data, "quote_entities");
+    }
+      result->quotePosition = data.get_optional<std::int32_t>("quote_position");
     return result;
 }
 
@@ -691,12 +693,12 @@ std::string TgTypeParser::parseReplyParameters(const ReplyParameters::Ptr& objec
     std::string result;
     result += '{';
     appendToJson(result, "message_id", object->messageId);
-    appendToJson(result, "chat_id", object->chatId);
-    appendToJson(result, "allow_sending_without_reply", object->allowSendingWithoutReply);
-    appendToJson(result, "quote", object->quote);
-    appendToJson(result, "quote_parse_mode", object->quoteParseMode);
-    appendToJson(result, "quote_entities", parseArray(&TgTypeParser::parseMessageEntity, object->quoteEntities));
-    appendToJson(result, "quote_position", object->quotePosition);
+    if (object->chatId) appendToJson(result, "chat_id", *(object->chatId));
+    if (object->allowSendingWithoutReply) appendToJson(result, "allow_sending_without_reply", *(object->allowSendingWithoutReply));
+    if (object->quote) appendToJson(result, "quote", *(object->quote));
+    if (object->quoteParseMode) appendToJson(result, "quote_parse_mode", *(object->quoteParseMode));
+    if (object->quoteEntities) appendToJson(result, "quote_entities", parseArray(&TgTypeParser::parseMessageEntity, *(object->quoteEntities)));
+    if (object->quotePosition) appendToJson(result, "quote_position", *(object->quotePosition));
     removeLastComma(result);
     result += '}';
     return result;
@@ -1720,11 +1722,11 @@ std::string TgTypeParser::parseGiveawayCompleted(const GiveawayCompleted::Ptr& o
 
 LinkPreviewOptions::Ptr TgTypeParser::parseJsonAndGetLinkPreviewOptions(const boost::property_tree::ptree& data) const {
     auto result(std::make_shared<LinkPreviewOptions>());
-    result->isDisabled = data.get<bool>("is_disabled", false);
-    result->url = data.get<std::string>("url", "");
-    result->preferSmallMedia = data.get<bool>("prefer_small_media", false);
-    result->preferLargeMedia = data.get<bool>("prefer_large_media", false);
-    result->showAboveText = data.get<bool>("show_above_text", false);
+    result->isDisabled = data.get_optional<bool>("is_disabled");
+    result->url = data.get_optional<std::string>("url");
+    result->preferSmallMedia = data.get_optional<bool>("prefer_small_media");
+    result->preferLargeMedia = data.get_optional<bool>("prefer_large_media");
+    result->showAboveText = data.get_optional<bool>("show_above_text");
     return result;
 }
 
@@ -1734,11 +1736,11 @@ std::string TgTypeParser::parseLinkPreviewOptions(const LinkPreviewOptions::Ptr&
     }
     std::string result;
     result += '{';
-    appendToJson(result, "is_disabled", object->isDisabled);
-    appendToJson(result, "url", object->url);
-    appendToJson(result, "prefer_small_media", object->preferSmallMedia);
-    appendToJson(result, "prefer_large_media", object->preferLargeMedia);
-    appendToJson(result, "show_above_text", object->showAboveText);
+    if (object->isDisabled) appendToJson(result, "is_disabled", *(object->isDisabled));
+    if (object->url) appendToJson(result, "url", *(object->url));
+    if (object->preferSmallMedia) appendToJson(result, "prefer_small_media", *(object->preferSmallMedia));
+    if (object->preferLargeMedia) appendToJson(result, "prefer_large_media", *(object->preferLargeMedia));
+    if (object->showAboveText) appendToJson(result, "show_above_text", *(object->showAboveText));
     removeLastComma(result);
     result += '}';
     return result;