From 139181bb53b86b362f6393a215d5dfdb0702fa57 Mon Sep 17 00:00:00 2001
From: halx99 <halx99@live.com>
Date: Sat, 2 Sep 2023 20:36:55 +0800
Subject: [PATCH] Particle3D: add wasm support for load materials

---
 .../Particle3D/PU/PUMaterialManager.cpp       | 29 +++++++++++++++----
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/extensions/Particle3D/PU/PUMaterialManager.cpp b/extensions/Particle3D/PU/PUMaterialManager.cpp
index 6a5412f277..57e6b5c57c 100644
--- a/extensions/Particle3D/PU/PUMaterialManager.cpp
+++ b/extensions/Particle3D/PU/PUMaterialManager.cpp
@@ -42,7 +42,12 @@
 #    include <sys/types.h>
 #    include <sys/stat.h>
 #    include <dirent.h>
+#else
+#    include "base/filesystem.h"
 #endif
+
+#include "yasio/string_view.hpp"
+
 NS_AX_BEGIN
 
 PUMaterial::PUMaterial()
@@ -132,13 +137,12 @@ bool PUMaterialCache::loadMaterialsFromSearchPaths(std::string_view fileFolder)
 {
     bool state = false;
 #if defined(_WIN32)
-    std::string seg("/");
+    std::string_view seg("/");
     std::string fullPath{fileFolder};
     fullPath += seg;
-    fullPath += std::string("*.material");
+    fullPath += "*.material"sv;
     WIN32_FIND_DATAA data;
-    HANDLE handle =
-        FindFirstFileExA(fullPath.c_str(), FindExInfoStandard, &data, FindExSearchNameMatch, NULL, 0);
+    HANDLE handle = FindFirstFileExA(fullPath.c_str(), FindExInfoStandard, &data, FindExSearchNameMatch, NULL, 0);
     if (handle != INVALID_HANDLE_VALUE)
     {
         state = true;
@@ -148,7 +152,7 @@ bool PUMaterialCache::loadMaterialsFromSearchPaths(std::string_view fileFolder)
             fullPath += seg;
             fullPath += data.cFileName;
             loadMaterials(fullPath);
-           
+
         } while (FindNextFileA(handle, &data));
         FindClose(handle);
     }
@@ -204,7 +208,20 @@ bool PUMaterialCache::loadMaterialsFromSearchPaths(std::string_view fileFolder)
     }
     closedir(d);
 #else
-    AXASSERT(0, "no implement for this platform");
+    // use c++17 filesystem
+    for (const auto& entry : stdfs::recursive_directory_iterator(fileFolder))
+    {
+#    if !defined(_WIN32)
+        if (entry.is_regular_file() && cxx20::ends_with(entry.path().native(), ".material"sv))
+#    else
+        if (entry.is_regular_file() && cxx20::ends_with(entry.path().native(), L".material"sv))
+#    endif
+        {
+            auto pathU8Str = entry.path().generic_u8string();
+            auto& pathStr  = *reinterpret_cast<std::string*>(&pathU8Str);
+            loadMaterials(pathStr);
+        }
+    }
 #endif
 
     return state;