Asset refactor

archive/loader/assetscript.c

@@ -0,0 +1,58 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "asset/asset.h"
+#include "assert/assert.h"
+
+errorret_t assetScriptHandler(assetcustom_t custom) {
+  assertNotNull(custom.zipFile, "Custom asset zip file cannot be NULL");
+  assertNotNull(custom.output, "Custom asset output cannot be NULL");
+
+  assetscript_t *script = (assetscript_t *)custom.output;
+  errorChain(assetScriptInit(script, custom.zipFile));
+
+  errorOk();
+}
+
+errorret_t assetScriptInit(
+  assetscript_t *script,
+  zip_file_t *zipFile
+) {
+  assertNotNull(script, "Script asset cannot be NULL");
+  assertNotNull(zipFile, "Zip file cannot be NULL");
+
+  // We now own the zip file handle.
+  script->zip = zipFile;
+
+  errorOk();
+}
+
+const char_t * assetScriptReader(lua_State* lState, void* data, size_t* size) {
+  assetscript_t *script = (assetscript_t *)data;
+  zip_int64_t bytesRead = zip_fread(
+    script->zip, script->buffer, sizeof(script->buffer)
+  );
+
+  if(bytesRead < 0) {
+    *size = 0;
+    return NULL;
+  }
+
+  *size = (size_t)bytesRead;
+  return script->buffer;
+}
+
+errorret_t assetScriptDispose(assetscript_t *script) {
+  assertNotNull(script, "Script asset cannot be NULL");
+
+  if(script->zip != NULL) {
+    zip_fclose(script->zip);
+    script->zip = NULL;
+  }
+
+  errorOk();
+}