(#824) Introduce UndoHistory

[nothing.git] / src / game / level_metadata.c

diff --git a/src/game/level_metadata.c b/src/game/level_metadata.c
index da307f7ac96a185ac1b07b73801a2880c8ab88be..1fdcd6a5a4db1a0ca5190ce4508a475abdf2de73 100644 (file)
--- a/src/game/level_metadata.c
+++ b/src/game/level_metadata.c
@@ -1,21 +1,78 @@
 #include <stdlib.h>
+#include <stdio.h>
 
 #include "system/stacktrace.h"
+#include "system/nth_alloc.h"
+#include "system/lt.h"
+#include "system/line_stream.h"
+#include "system/str.h"
 #include "level_metadata.h"
 
+struct LevelMetadata
+{
+    Lt *lt;
+    const char *title;
+};
+
+LevelMetadata *create_level_metadata(const char *title)
+{
+    trace_assert(title);
+
+    Lt *lt = create_lt();
+
+    LevelMetadata *level_metadata = PUSH_LT(
+        lt, nth_calloc(1, sizeof(LevelMetadata)), free);
+    if (level_metadata == NULL) {
+        RETURN_LT(lt, NULL);
+    }
+    level_metadata->lt = lt;
+
+    level_metadata->title = PUSH_LT(
+        lt,
+        trim_endline(string_duplicate(title, NULL)),
+        free);
+    if (level_metadata->title == NULL) {
+        RETURN_LT(lt, NULL);
+    }
+
+    return level_metadata;
+}
+
 LevelMetadata *create_level_metadata_from_file(const char *filename)
 {
     trace_assert(filename);
-    return NULL;
+
+    LineStream *line_stream = create_line_stream(filename, "r", 256);
+    if (line_stream == NULL) {
+        return NULL;
+    }
+
+    LevelMetadata *level_metadata = create_level_metadata_from_line_stream(line_stream);
+    destroy_line_stream(line_stream);
+
+    return level_metadata;
+}
+
+LevelMetadata *create_level_metadata_from_line_stream(LineStream *line_stream)
+{
+    trace_assert(line_stream);
+
+    const char *line = line_stream_next(line_stream);
+    if (line == NULL) {
+        return NULL;
+    }
+
+    return create_level_metadata(line);
 }
 
 void destroy_level_metadata(LevelMetadata *level_metadata)
 {
     trace_assert(level_metadata);
+    RETURN_LT0(level_metadata->lt);
 }
 
 const char *level_metadata_title(const LevelMetadata *level_metadata)
 {
     trace_assert(level_metadata);
-    return NULL;
+    return level_metadata->title;
 }