From a7a5b95990e0d6c1617c796dba2c45dab816161d Mon Sep 17 00:00:00 2001
From: tomsmeding <tom.smeding@gmail.com>
Date: Tue, 14 Mar 2017 14:06:14 +0100
Subject: Inviting

---
 command.c | 29 ++++++++++++++++++++++++++++-
 db.c      | 22 ++++++++++++++++++++++
 db.h      |  3 ++-
 main.c    |  1 +
 4 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/command.c b/command.c
index 9d5e2e8..30d2223 100644
--- a/command.c
+++ b/command.c
@@ -95,7 +95,7 @@ static bool cmd_register(struct conn_data *data,const char *tag,const char **arg
 static bool cmd_login(struct conn_data *data,const char *tag,const char **args){
 	i64 userid=db_find_user(args[0]);
 	if(userid==-1){
-		send_error(data->fd,tag,"Username does not exist");
+		send_error(data->fd,tag,"User not found");
 		return false;
 	}
 	char *pass=db_get_pass(userid);
@@ -144,6 +144,32 @@ static bool cmd_create_room(struct conn_data *data,const char *tag,const char **
 	return closed;
 }
 
+static bool cmd_invite(struct conn_data *data,const char *tag,const char **args){
+	if(data->userid==-1){
+		send_error(data->fd,tag,"Not logged in");
+		return false;
+	}
+	i64 roomid=db_find_room(args[0]);
+	if(roomid==-1){
+		send_error(data->fd,tag,"Room not found");
+		return false;
+	}
+
+	i64 user2=db_find_user(args[1]);
+	if(user2==-1){
+		send_error(data->fd,tag,"User not found");
+		return false;
+	}
+
+	if(!db_is_member(roomid,data->userid)){
+		send_error(data->fd,tag,"Not in that room");
+		return false;
+	}
+
+	db_add_member(roomid,user2);
+	return send_ok(data->fd,tag);
+}
+
 
 struct cmd_info{
 	const char *cmdname;
@@ -157,6 +183,7 @@ static const struct cmd_info commands[]={
 	{"login",2,true,cmd_login},
 	{"list_rooms",0,false,cmd_list_rooms},
 	{"create_room",0,false,cmd_create_room},
+	{"invite",2,false,cmd_invite},
 };
 #define NCOMMANDS (sizeof(commands)/sizeof(commands[0]))
 
diff --git a/db.c b/db.c
index 1997c5a..9efbd4a 100644
--- a/db.c
+++ b/db.c
@@ -75,6 +75,28 @@ bool db_add_member(i64 roomid,i64 userid){
 	return success;
 }
 
+bool db_is_member(i64 roomid,i64 userid){
+	sqlite3_stmt *stmt;
+	SQLITE(prepare_v2,database,"select 1 from Members where room = ? and user = ?",-1,&stmt,NULL);
+	SQLITE(bind_int64,stmt,1,roomid);
+	SQLITE(bind_int64,stmt,2,userid);
+	bool success=sqlite3_step(stmt)==SQLITE_ROW;
+	SQLITE(finalize,stmt);
+	return success;
+}
+
+i64 db_find_room(const char *name){
+	sqlite3_stmt *stmt;
+	SQLITE(prepare_v2,database,"select id from Rooms where name = ?",-1,&stmt,NULL);
+	SQLITE(bind_text,stmt,1,name,-1,SQLITE_STATIC);
+	i64 roomid=-1;
+	if(sqlite3_step(stmt)==SQLITE_ROW){
+		roomid=sqlite3_column_int64(stmt,0);
+	}
+	SQLITE(finalize,stmt);
+	return roomid;
+}
+
 struct db_room_list db_list_rooms(i64 userid){
 	sqlite3_stmt *stmt;
 	SQLITE(prepare_v2,database,
diff --git a/db.h b/db.h
index 911103d..9dc926c 100644
--- a/db.h
+++ b/db.h
@@ -29,7 +29,8 @@ void db_close(void);
 struct db_name_id db_create_room(void);
 bool db_delete_room(i64 roomid);
 bool db_add_member(i64 roomid,i64 userid);
-bool db_remove_member(i64 roomid,u64 userid);
+bool db_remove_member(i64 roomid,i64 userid);
+bool db_is_member(i64 roomid,i64 userid);
 i64 db_find_room(const char *name);  // -1 if not found
 struct db_room_list db_list_rooms(i64 userid);
 
diff --git a/main.c b/main.c
index f059778..cfedf93 100644
--- a/main.c
+++ b/main.c
@@ -46,6 +46,7 @@ static struct conn_data* find_conn_data(int fd){
 }
 
 static void delete_conn_data(int fd){
+	debug("Deleting conn_data for fd=%d",fd);
 	struct hash_item *item=conn_hash[fd%CONN_HASH_SIZE];
 	assert(item);
 	if(item->cd.fd==fd){
-- 
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