From 47a048d553352306f0d8c3febe95cab77d0e9670 Mon Sep 17 00:00:00 2001
From: Eric House <xwords@eehouse.org>
Date: Sat, 21 Oct 2017 16:05:54 -0700
Subject: [PATCH] fetch relayIDs from db

---
 xwords4/linux/gamesdb.c  | 34 +++++++++++++++++++++++++
 xwords4/linux/gamesdb.h  |  2 ++
 xwords4/linux/relaycon.c | 54 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 90 insertions(+)

diff --git a/xwords4/linux/gamesdb.c b/xwords4/linux/gamesdb.c
index 9e623239f..33f27c2db 100644
--- a/xwords4/linux/gamesdb.c
+++ b/xwords4/linux/gamesdb.c
@@ -311,6 +311,40 @@ listGames( sqlite3* pDb )
     return list;
 }
 
+GHashTable*
+getRowsToRelayIDsMap( sqlite3* pDb )
+{
+    GHashTable* table = g_hash_table_new( g_int64_hash, g_int64_equal );
+    sqlite3_stmt *ppStmt;
+    int result = sqlite3_prepare_v2( pDb, "SELECT rowid, relayid FROM games", 
+                                     -1, &ppStmt, NULL );
+    assertPrintResult( pDb, result, SQLITE_OK );
+    XP_USE( result );
+    while ( NULL != ppStmt ) {
+        switch( sqlite3_step( ppStmt ) ) {
+        case SQLITE_ROW:        /* have data */
+        {
+            sqlite3_int64* key = g_malloc( sizeof( *key ) );
+            *key = sqlite3_column_int64( ppStmt, 0 );
+            XP_UCHAR relayID[32];
+            getColumnText( ppStmt, 1, relayID, VSIZE(relayID) );
+            gpointer value = g_strdup( relayID );
+            g_hash_table_insert( table, key, value );
+        }
+        break;
+        case SQLITE_DONE:
+            sqlite3_finalize( ppStmt );
+            ppStmt = NULL;
+            break;
+        default:
+            XP_ASSERT( 0 );
+            break;
+        }
+    }
+
+    return table;
+}
+
 XP_Bool
 getGameInfo( sqlite3* pDb, sqlite3_int64 rowid, GameInfo* gib )
 {
diff --git a/xwords4/linux/gamesdb.h b/xwords4/linux/gamesdb.h
index f8ac3316a..214f324f9 100644
--- a/xwords4/linux/gamesdb.h
+++ b/xwords4/linux/gamesdb.h
@@ -56,6 +56,8 @@ void summarize( CommonGlobals* cGlobals );
 
 /* Return GSList whose data is (ptrs to) rowids */
 GSList* listGames( sqlite3* dbp );
+GHashTable *getRowsToRelayIDsMap(sqlite3* dbp);
+
 XP_Bool getGameInfo( sqlite3* dbp, sqlite3_int64 rowid, GameInfo* gib );
 void getRowsForGameID( sqlite3* dbp, XP_U32 gameID, sqlite3_int64* rowids, 
                        int* nRowIDs );
diff --git a/xwords4/linux/relaycon.c b/xwords4/linux/relaycon.c
index 491d1a3af..2d011277e 100644
--- a/xwords4/linux/relaycon.c
+++ b/xwords4/linux/relaycon.c
@@ -27,9 +27,15 @@
 #include "relaycon.h"
 #include "linuxmain.h"
 #include "comtypes.h"
+#include "gamesdb.h"
+
+#define MAX_MOVE_CHECK_SECS ((XP_U16)(60 * 60 * 24))
 
 typedef struct _RelayConStorage {
     pthread_t mainThread;
+    guint moveCheckerID;
+    XP_U16 nextMoveCheckSecs;
+
     int socket;
     RelayConnProcs procs;
     void* procsClosure;
@@ -48,6 +54,7 @@ static RelayConStorage* getStorage( LaunchParams* params );
 static XP_U32 hostNameToIP( const XP_UCHAR* name );
 static gboolean relaycon_receive( GIOChannel *source, GIOCondition condition, 
                                   gpointer data );
+static void scheule_next_check( RelayConStorage* storage );
 static ssize_t sendIt( RelayConStorage* storage, const XP_U8* msgbuf, XP_U16 len );
 static size_t addVLIStr( XP_U8* buf, size_t len, const XP_UCHAR* str );
 static void getNetString( const XP_U8** ptr, XP_U16 len, XP_UCHAR* buf );
@@ -216,6 +223,10 @@ relaycon_init( LaunchParams* params, const RelayConnProcs* procs,
     storage->params = params;
 
     storage->proto = XWPDEV_PROTO_VERSION_1;
+
+    if ( params->useHTTP ) {
+        scheule_next_check( storage );
+    }
 }
 
 /* Send existing relay-assigned rDevID to relay, or empty string if we have
@@ -643,6 +654,49 @@ post( RelayConStorage* storage, const XP_U8* msgbuf, XP_U16 len )
     return len;
 }
 
+static gboolean
+checkForMoves( gpointer user_data )
+{
+    LOG_FUNC();
+    RelayConStorage* storage = (RelayConStorage*)user_data;
+    XP_ASSERT( onMainThread(storage) );
+
+    sqlite3* dbp = storage->params->pDb;
+    GHashTable* map = getRowsToRelayIDsMap( dbp );
+    GList* ids = g_hash_table_get_values( map );
+    for ( GList* iter = ids; !!iter; iter = iter->next ) {
+        gpointer data = iter->data;
+        XP_LOGF( "checkForMoves: got id: %s", (char*)data );
+    }
+    g_list_free( ids );
+    g_hash_table_destroy( map );
+
+    scheule_next_check( storage );
+    return FALSE;
+}
+
+static void
+scheule_next_check( RelayConStorage* storage )
+{
+    XP_ASSERT( onMainThread(storage) );
+
+    if ( storage->moveCheckerID != 0 ) {
+        g_source_remove( storage->moveCheckerID );
+        storage->moveCheckerID = 0;
+    }
+
+    storage->nextMoveCheckSecs *= 2;
+    if ( storage->nextMoveCheckSecs > MAX_MOVE_CHECK_SECS ) {
+        storage->nextMoveCheckSecs = MAX_MOVE_CHECK_SECS;
+    } else if ( storage->nextMoveCheckSecs == 0 ) {
+        storage->nextMoveCheckSecs = 1;
+    }
+
+    storage->moveCheckerID = g_timeout_add( 1000 * storage->nextMoveCheckSecs,
+                                            checkForMoves, storage );
+    XP_ASSERT( storage->moveCheckerID != 0 );
+}
+
 static ssize_t
 sendIt( RelayConStorage* storage, const XP_U8* msgbuf, XP_U16 len )
 {