From 2edacdcb0ac14a1e3ab8d6f6bc2a56f81783a88a Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Tue, 15 Mar 2011 23:59:01 +0000
Subject: added temp storage (db)


diff --git a/nopsyncd/db.lua b/nopsyncd/db.lua
new file mode 100644
index 0000000..ffdefed
--- /dev/null
+++ b/nopsyncd/db.lua
@@ -0,0 +1,52 @@
+--
+--  rhnop
+--
+--  Copyright (C) 2011 Christian Pointner <equinox@helsinki.at>
+--
+--  This file is part of rhnop.
+--
+--  rhnop is free software: you can redistribute it and/or modify
+--  it under the terms of the GNU General Public License as published by
+--  the Free Software Foundation, either version 3 of the License, or
+--  any later version.
+--
+--  rhnop is distributed in the hope that it will be useful,
+--  but WITHOUT ANY WARRANTY; without even the implied warranty of
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--  GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with rhnop. If not, see <http://www.gnu.org/licenses/>.
+--
+
+require "luasql.sqlite3"
+
+local db = {}
+
+function db:init()
+   local err
+
+   self.env, err = luasql.sqlite3()
+   if self.env == nil then
+      return nil, err
+   end
+
+   self.con, err = self.env:connect("nopsync.db")
+   if self.con == nil then
+      return nil, err
+   end
+   
+   local ret, err = self.con:setautocommit(true)
+   if ret == nil then
+      return nil, err
+   end
+
+   local rows, err = self.con:execute("CREATE TABLE IF NOT EXISTS now (timestamp INT PRIMARY KEY ASC NOT NULL, cart INT NOT NULL, len INT, showtitle VARCHAR(255), title VARCHAR(255), artist VARCHAR(255), album VARCHAR(255), ismusic BOOLEAN)")
+   if rows == nil then
+      return nil, err
+   end
+
+   return true
+end
+
+return db
diff --git a/nopsyncd/nopsyncd.c b/nopsyncd/nopsyncd.c
index f216d1e..63bef7f 100644
--- a/nopsyncd/nopsyncd.c
+++ b/nopsyncd/nopsyncd.c
@@ -39,6 +39,8 @@ static const luaL_Reg nopsyncd_lualibs[] = {
   {LUA_TABLIBNAME, luaopen_table},
   {LUA_STRLIBNAME, luaopen_string},
   {LUA_MATHLIBNAME, luaopen_math},
+  {LUA_MATHLIBNAME, luaopen_io},
+  {LUA_MATHLIBNAME, luaopen_os},
   {LUA_MATHLIBNAME, luaopen_pipe},
   {NULL, NULL}
 };
diff --git a/nopsyncd/qlistener.lua b/nopsyncd/qlistener.lua
index 2ebf5be..9498fbb 100755
--- a/nopsyncd/qlistener.lua
+++ b/nopsyncd/qlistener.lua
@@ -22,6 +22,7 @@
 local queue_name = "/rhnop"
 
 mq = require "luamq"
+db = require "db"
 
 function main_loop()
    local q, err = mq.create(queue_name, "ro")
@@ -30,6 +31,12 @@ function main_loop()
       os.exit(1)
    end
    
+   local ret, err = db:init()
+   if ret == nil then
+      io.stderr:write("creation of db failed: " .. err .. "\n")
+      os.exit(1)
+   end
+
    while true do
       local msg, prio = mq.receive(q)
       if msg == nil then
@@ -37,9 +44,13 @@ function main_loop()
          os.exit(2)
       end
       
-      -- TODO: lookup info in Rivendell DB and insert into temporary storage
-      print("received message '" .. msg .. "' with prio: " .. prio)
-      
-      pipe.signal()
+      local timestamp, nowcart, nowlen, nextcart, nextlen = string.match(msg, "^(%d+) (%d+) (%d+) (%d+) (%d+)$");
+      if not timestamp or not nowcart or not nowlen or not nextcart or not nextlen then
+         io.stderr:write("ignoring malformed message\n")
+      else
+         -- TODO: lookup info in Rivendell DB and insert into temporary storage
+         print("received message:\ntimestamp = " .. timestamp .. "\nnowcart = "  .. nowcart .. "\nnowlen = " .. nowlen .. "\nnextcart = " .. nextcart .. "\nnextlen = " .. nextlen)
+         pipe.signal()
+      end
    end
 end   
\ No newline at end of file
diff --git a/nopsyncd/tcpserver.lua b/nopsyncd/tcpserver.lua
index 972603d..fc19b9c 100755
--- a/nopsyncd/tcpserver.lua
+++ b/nopsyncd/tcpserver.lua
@@ -20,6 +20,7 @@
 --
 
 require "socket"
+db = require "db"
 
 function init_server()
    local server = assert(socket.tcp())
@@ -85,6 +86,12 @@ end
 function main_loop()
    local pipefd = pipe.getreadfd()
 
+   local ret, err = db:init()
+   if ret == nil then
+      io.stderr:write("creation of db failed: " .. err .. "\n")
+      os.exit(1)
+   end
+
    server = init_server()
 
    while true do
-- 
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