#include <FS.h>
#include <ESP8266WebServer.h>


class ESP8266HttpMsgPackWriter {
public:
    HttpWriterAdaptor(ESP8266WebServer
    * o)
    :
    obj_(o) {}

    void write(const char *data, uint32_t size) {
        obj_->sendContent_P(data, size);
    }

private:
    ESP8266WebServer *obj_;
};


template<typename SessionChunk_T>
void saveSessionChunkToFile(const SessionChunk_T &chunk, const String &fileName) {
    String startTimeStr(chunk.getStartTime());
    File f = SPIFFS.open(fileName, "w");
    StreamingMsgPackEncoder<File> encoder(&f);
    chunk.serialize(encoder);
    f.close();
}