From 6139b74876a5c8417d75c2759ce0baec4ae0e171 Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Wed, 25 Nov 2020 19:04:49 +0300
Subject: add second (work with chat) level of abstraction

---
 src/server/rooms.cpp | 192 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 192 insertions(+)
 create mode 100644 src/server/rooms.cpp

(limited to 'src/server/rooms.cpp')

diff --git a/src/server/rooms.cpp b/src/server/rooms.cpp
new file mode 100644
index 0000000..624eb88
--- /dev/null
+++ b/src/server/rooms.cpp
@@ -0,0 +1,192 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "rooms.hpp"
+#include "chat.hpp"
+
+// hash of commands:
+#define CMD_NAME 210647350421
+#define CMD_CREATE 229394553991880
+
+const int cmd_num = 2;
+const char *commands[cmd_num] = {
+	"/name",
+	"/create"
+	// /rooms - print all public rooms
+};
+
+char **ParseCommand(const char *input, int &arrc);
+unsigned long hash(const char *str);
+
+ChatRoom::~ChatRoom()
+{
+	while(first) {
+        item *tmp = first;
+        first = first->next;
+        the_server->CloseConnection(tmp->s);
+        delete tmp;
+    }
+}
+
+void ChatRoom::SendAll(const char *msg, ChatSession *except)
+{
+    CONSOLE_LOG("Send message all: %s\n", msg);
+    item *p;
+    for(p = first; p; p = p->next)
+        if(p->s != except)
+            p->s->Send(msg);
+}
+
+void ChatRoom::LeaveMessage(ChatSession *except)
+{
+	if(it_lobby)
+		return;
+
+	const char left_msg[] = " has left the chat";
+	const char *name = except->GetName();
+
+    int len = strlen(name);
+    char *lmsg = new char[len + sizeof(left_msg) + 2];
+    sprintf(lmsg, "%s%s\n", name, left_msg);
+    this->SendAll(lmsg, except);
+    delete[] lmsg;
+}
+
+void ChatRoom::HandleMessage(ChatSession *ses, const char *str)
+{
+	if(str[0] == '/') { // if user sent a command
+		int argc = 0;
+		char **argv = 0;
+		argv = ParseCommand(str, argc);
+
+		this->HandleCommand(ses, argc, argv);
+	}
+	else if(!it_lobby) {
+	    char *msg = new char[max_msg_len];
+	    sprintf(msg, "%s: %s\n", ses->GetName(), str);
+
+	    this->SendAll(msg);
+	    
+	    delete[] msg;
+	}
+}
+
+void ChatRoom::HandleCommand(ChatSession *s, int cmd_counter,
+	char **commands)
+{
+	unsigned long cmd = -1;
+	cmd = hash(commands[0]);
+
+	switch(cmd)
+	{
+		case CMD_NAME: {
+			if(!it_lobby) {
+				s->Send("You can use this command only in lobby\n");
+				break;
+			}
+
+			if(cmd_counter == 1) {
+				s->Send("Usage: /name your_good_name\n");
+				break;
+			}
+
+			int len = strlen(commands[1]);
+			if(len > max_name_len || len < 3) {
+				s->Send("Incorrect name. Name length from 3 to 18 chars\n");
+				break;
+			}
+
+			s->ChangeName(commands[1]);
+			break;
+		}
+		case CMD_CREATE: {
+			if(!it_lobby) {
+				s->Send("You can use this command only in lobby\n");
+				break;
+			}
+			if(!s->GetName()) {
+				s->Send("Before you can use this command, use /name\n");
+				break;
+			}
+
+			//int id = the_s->AddRoom();
+			//the_s->AddSessionToRoom(s, id);
+
+			break;
+		}
+
+		default: {
+			s->Send("Unknown command. Use: /help\n");
+			break;
+		}
+	}
+}
+
+void ChatRoom::AddSession(ChatSession *ses)
+{
+	item *p = new item;
+    p->next = first;
+    p->s = ses;
+    first = p;
+}
+
+void ChatRoom::RemoveSession(ChatSession *ses)
+{
+	item **p;
+	for(p = &first; *p; p = &((*p)->next)) {
+		if( ((*p)->s) == ses ) {
+			item *tmp = *p;
+			*p = tmp->next;
+			// not delete ChatSession!
+			delete tmp;
+			return;
+		}
+	}
+}
+
+void ChatRoom::CloseSession(ChatSession *ses)
+{
+	this->RemoveSession(ses);
+	the_server->CloseConnection(ses);
+}
+
+//////////////////////////////////////////////////////////////
+
+char **ParseCommand(const char *input, int &arrc)
+{
+	int max_argv = 5;
+	arrc = 0;
+	char **arr = new char*[max_argv];
+
+	int start = 0;
+	for(int i = 0; i < (int) strlen(input)+1; i++) {
+		if(input[i] == ' ' || input[i] == '\0' || input[i] == '\n') { // end
+			if(start == -1)
+				continue;
+
+			int size = i - start;
+			arr[arrc] = new char[size];
+			memcpy(arr[arrc], input + start, sizeof(char) * size);
+			
+			start = -1;
+			arrc++;
+			if(arrc == max_argv)
+				break;
+		}
+		else if(start == -1)
+			start = i;
+	}
+
+	return arr;
+}
+
+unsigned long hash(const char *str)
+{
+    unsigned long hash = 5381;
+    char c;
+
+    while( (c = *str++) )
+        hash = ((hash << 5) + hash) + c;
+
+    return hash;
+}
\ No newline at end of file
-- 
cgit v1.2.3-18-g5258