From 85398a9410a3ab36786c1e436986309ee6163f2f Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Sun, 11 Jun 2023 20:20:52 +0200
Subject: c++, codec-json: Added struct to json encoding and fixed a buffer bug
 on the fly

---
 src/codec-json/json.tmpl.h | 108 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)

(limited to 'src/codec-json')

diff --git a/src/codec-json/json.tmpl.h b/src/codec-json/json.tmpl.h
index 0738277..38959b2 100644
--- a/src/codec-json/json.tmpl.h
+++ b/src/codec-json/json.tmpl.h
@@ -119,5 +119,113 @@ struct json_encode<schema::Tuple<T...>, RootSchema, FromEncode>  {
 		return void_t{};
 	}
 };
+
+template<typename T, typename RootSchema, typename FromEncode>
+struct json_encode<schema::Array<T>, RootSchema, FromEncode>  {
+	static error_or<void> encode(const data<schema::Array<T>, FromEncode>& from, buffer& to) {
+		{
+			auto err = to.push('[');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+		}
+		for(std::size_t i = 0; i < from.size(); ++i){
+			if(i > 0){
+				auto eov_ele = to.push(',');
+				if(!eov_ele.template is_type<err::no_error>()){
+					return eov_ele;
+				}
+			}
+			auto eov = json_encode<T, RootSchema, FromEncode>::encode(from.at(i), to);
+			if(eov.is_error()){
+				return eov;
+			}
+		}
+		{
+			auto err = to.push(']');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+		}
+
+		return void_t{};
+	}
+};
+
+template<typename... T, string_literal... Key, typename RootSchema, typename FromEncode>
+struct json_encode<schema::Struct<schema::Member<T,Key>...>, RootSchema, FromEncode>  {
+
+	template<size_t i>
+	static error_or<void> encode_element(const data<schema::Struct<schema::Member<T,Key>...>, FromEncode>& from, buffer& to){
+		// Encode the name
+		{
+			std::string_view view = parameter_key_pack_type<i, Key...>::literal.view();
+			error err = to.push('"');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+			err = to.push(*reinterpret_cast<const uint8_t *>(view.data()), view.size());
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+			err = to.push('"');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+		}
+		// Add the separator
+		{
+			auto eov_ele = to.push(':');
+			if(!eov_ele.template is_type<err::no_error>()){
+				return eov_ele;
+			}
+		}
+	
+		// Encode the value
+		auto eov = json_encode<typename parameter_pack_type<i, T...>::type, RootSchema, FromEncode>::encode(from.template get<parameter_key_pack_type<i, Key...>::literal>(), to);
+		
+		// Go to the next element
+		if constexpr ( (i+1) < sizeof...(T)){
+			{
+				auto eov_ele = to.push(',');
+				if(!eov_ele.template is_type<err::no_error>()){
+					return eov_ele;
+				}
+			}
+			{
+				auto eov_ele = encode_element<i+1>(from, to);
+				if(eov_ele.is_error()){
+					return eov_ele;
+				}
+			}
+
+
+		}
+
+		return void_t{};
+	}
+	static error_or<void> encode(const data<schema::Struct<schema::Member<T,Key>...>, FromEncode>& from, buffer& to) {
+		{
+			auto err = to.push('{');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+		}
+		if constexpr ( sizeof...(T) > 0 ){
+			auto eov = encode_element<0>(from, to);
+			if(eov.is_error()){
+				return eov;
+			}
+		}
+		{
+			auto err = to.push('}');
+			if(!err.template is_type<err::no_error>()){
+				return err;
+			}
+		}
+
+		return void_t{};
+	}
+};
 }
 }
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