From 021a0915c2bc6e62bda3e45a89c95266f3b2da47 Mon Sep 17 00:00:00 2001
From: Warren Dukes <warren.dukes@gmail.com>
Date: Wed, 10 Nov 2004 21:48:08 +0000
Subject: ok, list is now reimplemented, should be ready to go, this branch is
 now compatible with trunk mpd again, time merge

git-svn-id: https://svn.musicpd.org/mpd/branches/r2562-metadata-handling-rewrite@2587 09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
 src/command.c    | 32 ++++++++++++++++++++++++++++----
 src/tagTracker.c | 53 +++++++++++++++++++++++++++++++++++++++++++++--------
 src/tagTracker.h |  4 ++++
 3 files changed, 77 insertions(+), 12 deletions(-)

diff --git a/src/command.c b/src/command.c
index 35045b472..5b3616a40 100644
--- a/src/command.c
+++ b/src/command.c
@@ -613,11 +613,35 @@ int handleClearError(FILE * fp, unsigned int * permission, int argArrayLength,
 int handleList(FILE * fp, unsigned int * permission, int argArrayLength, 
 		char ** argArray) 
 {
-        char * arg1 = NULL;
+	int numConditionals = 0;
+	LocateTagItem * conditionals = NULL;
+	int tagType = getLocateTagItemType(argArray[1]);
+	int ret;
 
-        if(argArrayLength==3) arg1 = argArray[2];
-        //return printAllKeysOfTable(fp,argArray[1],arg1);
-	return 0;
+	if(tagType < 0) {
+                commandError(fp, ACK_ERROR_ARG,
+				"\"%s\" is not known", argArray[1]);
+		return -1;
+	}
+
+	/* for compatibility with < 0.12.0 */
+        if(argArrayLength==3) {
+		if(tagType != TAG_ITEM_ALBUM) {
+                	commandError(fp, ACK_ERROR_ARG,
+					"should be \"%s\" for 3 arguments", 
+					mpdTagItemKeys[TAG_ITEM_ALBUM]);
+			return -1;
+		}
+		conditionals = newLocateTagItem(mpdTagItemKeys[TAG_ITEM_ARTIST],
+					argArray[2]);
+		numConditionals = 1;
+	}
+        
+	ret = listAllUniqueTags(fp, tagType, numConditionals,conditionals);
+
+	if(conditionals) free(conditionals);
+
+	return ret;
 }
 
 int handleMove(FILE * fp, unsigned int * permission, int argArrayLength, 
diff --git a/src/tagTracker.c b/src/tagTracker.c
index cea02f471..30ae7641b 100644
--- a/src/tagTracker.c
+++ b/src/tagTracker.c
@@ -16,6 +16,11 @@ static List * tagLists[TAG_NUM_OF_ITEM_TYPES] =
 	NULL
 };
 
+typedef struct tagTrackerItem {
+	int count;
+	mpd_sint8 visited;
+} TagTrackerItem;
+
 char * getTagItemString(int type, char * string) {
 	ListNode * node;
 
@@ -26,12 +31,13 @@ char * getTagItemString(int type, char * string) {
 	}
 
 	if((node = findNodeInList(tagLists[type], string))) {
-		(*((int *)node->data))++;
+		((TagTrackerItem *)node->data)->count++;
 	}
 	else {
-		int * intPtr = malloc(sizeof(int));
-		*intPtr = 1;
-		node = insertInList(tagLists[type], string, intPtr);
+		TagTrackerItem * item = malloc(sizeof(TagTrackerItem));
+		item->count = 1;
+		item->visited = 0;
+		node = insertInList(tagLists[type], string, item);
 	}
 
 	return node->key;
@@ -53,9 +59,9 @@ void removeTagItemString(int type, char * string) {
 	node = findNodeInList(tagLists[type], string);
 	assert(node);
 	if(node) {
-		int * countPtr = node->data;
-		(*countPtr)--;
-		if(*countPtr <= 0) deleteNodeFromList(tagLists[type], node);
+		TagTrackerItem * item = node->data;
+		item->count--;
+		if(item->count <= 0) deleteNodeFromList(tagLists[type], node);
 	}
 
 	if(tagLists[type]->numberOfNodes == 0) {
@@ -84,7 +90,7 @@ void printMemorySavedByTagTracker() {
 
 		while(node != NULL) {
 			sum -= sizeof(ListNode);
-			sum -= sizeof(int);
+			sum -= sizeof(TagTrackerItem);
 			sum -= sizeof(node->key);
 			sum += (strlen(node->key)+1)*(*((int *)node->data));
 			node = node->nextNode;
@@ -103,3 +109,34 @@ void sortTagTrackerInfo() {
 		sortList(tagLists[i]);
 	}
 }
+
+void resetVisitedFlagsInTagTracker(int type) {
+	ListNode * node;
+
+	if(!tagLists[type]) return;
+
+	node = tagLists[type]->firstNode;
+
+	while(node) {
+		((TagTrackerItem *)node->data)->visited = 0;
+		node = node->nextNode;
+	}
+}
+
+int wasVisitedInTagTracker(int type, char * str) {
+	int ret;
+	ListNode * node;
+	TagTrackerItem * item;
+
+	if(!tagLists[type]) return 0;
+
+	node = findNodeInList(tagLists[type], str);
+
+	if(!node) return 0;
+
+	item = node->data;
+	ret = item->visited;
+	item->visited = 1;
+
+	return ret;
+}
diff --git a/src/tagTracker.h b/src/tagTracker.h
index fcafde736..7c9740c64 100644
--- a/src/tagTracker.h
+++ b/src/tagTracker.h
@@ -13,4 +13,8 @@ void printMemorySavedByTagTracker();
 
 void sortTagTrackerInfo();
 
+void resetVisitedFlagsInTagTracker(int type);
+ 
+int wasVisitedInTagTracker(int type, char * str);
+
 #endif
-- 
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