vibed_test/vtest/source/ws_bert_login.d

alias uint8  = ubyte;

import vibe.core.core;
import vibe.http.router;
import vibe.http.server;
import vibe.http.fileserver;
import vibe.http.websockets;
import vibe.core.log;

import std.stdio;
import std.string;
import std.array;
import std.conv : to;

import bert; // https://github.com/221V/dlang_erl_bert  https://git.4dev.win/game1/dlang_erl_bert


import mustache;
alias MustacheEngine!(string) Mustache;


void ws_bert_handle(scope WebSocket sock){
  // simple echo server + :)
  while(sock.connected){
    //auto msg = sock.receiveText();
    //sock.send(msg ~ " :)");
    auto msg = sock.receiveBinary();
    if(msg == "1"){
      sock.send("0"); // ws PING - PONG
    }else{
    
      try{
        auto decoder = new BertDecoder( cast(ubyte[])msg.dup );
        auto decoded = decoder.decode();
        msg_match(decoded, sock);
      }catch(Exception e){
        writeln("Exception 37: ", e.msg);
      }
    
    }
  }
}

void msg_match(BertValue decoded, WebSocket sock){
  writeln("Decoded: ", decoded.toString());
  
  if(decoded.type_ == BertType.Tuple){
    auto decoded1 = decoded.tupleValue;
    if(decoded1.length == 3){
      
      if(auto num1 = cast(uint8)decoded1[0].intValue){
        writeln("num1 = ", num1, " ", typeof(num1).stringof); // ws.send(enc(tuple( number(1), number(42), number(777) ))); // Decoded: {1, 42, 777} // num1 = 1 ubyte
        sock.send("{console.log(" ~ to!string(num1 + 42) ~ ")}"); // got 43 in browser console
        
      } // else do nothing
    } // else do nothing
  } // else do nothing
}

void login_test(HTTPServerRequest req, HTTPServerResponse res){
  Mustache mustache;
  auto context = new Mustache.Context;
  mustache.path = "priv";
  mustache.ext = "dtl";
  
  context["lang"] = "en";
  context["number1"] = 42;
  context.useSection("maybe1");
  
  context["part1"] = "<span>777</span>";
  context["result1"] = "Hello, World!\n";
  
  res.headers["Content-Type"] = "text/html; charset=utf-8";
  
  //res.writeBody("Hello, World!\n" ~ result);
  res.writeBody( mustache.render("login_test", context) );
}