From 391af170b617b6c7a3f21904c7d344326959842c Mon Sep 17 00:00:00 2001
From: Robear Selwans <robear.selwans@outlook.com>
Date: Wed, 9 Jun 2021 09:21:34 +0200
Subject: [PATCH] Added mount watching

Signed-off-by: Robear Selwans <robear.selwans@outlook.com>
---
 meson.build           |  3 ++-
 meta/evmod.namespaces |  4 ++++
 src/mod.c             | 46 +++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/meson.build b/meson.build
index d90383f..e0639f1 100644
--- a/meson.build
+++ b/meson.build
@@ -30,8 +30,9 @@ mod_deps = [
   evmod_deps,
 
   dependency('threads'),
-
   dependency('assetsys'),
+  dependency('cute_filewatch'),
+
   dependency('evmod_ecs'),
 ]
 
diff --git a/meta/evmod.namespaces b/meta/evmod.namespaces
index e33a1c4..1979a94 100644
--- a/meta/evmod.namespaces
+++ b/meta/evmod.namespaces
@@ -7,6 +7,10 @@ EV_NS_DEF_END(Asset)
 
 EV_NS_DEF_BEGIN(AssetManager)
 EV_NS_DEF_FN(void, mount, (evstring *, path), (evstring *, as))
+EV_NS_DEF_FN(void, update, (,))
+EV_NS_DEF_FN(void, watch, (CONST_STR, path), (FN_PTR, callback))
+EV_NS_DEF_FN(void, watchRecursively, (CONST_STR, path), (FN_PTR, callback))
+EV_NS_DEF_FN(void, stopWatching, (CONST_STR, path))
 EV_NS_DEF_END(AssetManager)
 
 /* #include LOADERS_NAMESPACES_H */
diff --git a/src/mod.c b/src/mod.c
index b8911b7..63ec6bc 100644
--- a/src/mod.c
+++ b/src/mod.c
@@ -1,6 +1,8 @@
 #define EV_MODULE_DEFINE
 #include <evol/evolmod.h>
 #include <assetsys/assetsys.h>
+#include <cute_filewatch.h>
+
 #include <evol/utils/aligned_alloc.h>
 
 #define IMPORT_MODULE evmod_ecs
@@ -21,12 +23,15 @@
 
 struct {
   assetsys_t *sys;
+  filewatch_t *fwatch;
 
   evolmodule_t ecs_mod;
   ECSAssetWorldHandle world;
   AssetComponentID assetcomponent_id;
 
-} AssetManagerData = {NULL};
+} AssetManagerData = {
+  NULL, NULL, NULL, 
+  0, 0};
 
 void
 onRemoveAssetComponent(
@@ -85,6 +90,7 @@ EV_CONSTRUCTOR
   static_assert(sizeof(AssetEntityID) == sizeof(AssetHandle), "AssetEntityID not the same size of AssetHandle");
 
   AssetManagerData.sys = assetsys_create( 0 );
+  AssetManagerData.fwatch = filewatch_create(AssetManagerData.sys, NULL);
 
   AssetManagerData.ecs_mod = evol_loadmodule("ecs");
   if(AssetManagerData.ecs_mod) {
@@ -117,6 +123,7 @@ EV_CONSTRUCTOR
 
 EV_DESTRUCTOR
 {
+  filewatch_free(AssetManagerData.fwatch);
   assetsys_destroy(AssetManagerData.sys);
 
   if(AssetManagerData.world) {
@@ -179,7 +186,31 @@ ev_assetmanager_mount(
   evstring *as)
 {
   evstring_pushstr(as, ":/");
-  AssetSysCheck("Failed to mount %s as %s. ", (*path, *as), assetsys_mount(AssetManagerData.sys, *path, *as));
+  /* AssetSysCheck("Failed to mount %s as %s. ", (*path, *as), assetsys_mount(AssetManagerData.sys, *path, *as)); */
+  filewatch_mount(AssetManagerData.fwatch, *path, *as);
+}
+
+void
+ev_assetmanager_watch(
+  const char *path,
+  FN_PTR callback)
+{
+  filewatch_start_watching(AssetManagerData.fwatch, path, callback, NULL, 0);
+}
+
+void
+ev_assetmanager_watchrecursively(
+  const char *path,
+  FN_PTR callback)
+{
+  filewatch_start_watching(AssetManagerData.fwatch, path, callback, NULL, 1);
+}
+
+void
+ev_assetmanager_stopwatching(
+  const char *path)
+{
+  filewatch_stop_watching(AssetManagerData.fwatch, path);
 }
 
 const Asset *
@@ -198,10 +229,21 @@ ev_asset_markas(
   AssetECS->setComponent(AssetManagerData.world, handle, assetType, data);
 }
 
+void
+ev_assetmanager_update()
+{
+  filewatch_update(AssetManagerData.fwatch);
+  filewatch_notify(AssetManagerData.fwatch);
+}
+
 EV_BINDINGS
 {
   ev_log_debug("Binding functions in evmod_asset");
   EV_NS_BIND_FN(AssetManager, mount, ev_assetmanager_mount);
+  EV_NS_BIND_FN(AssetManager, watch, ev_assetmanager_watch);
+  EV_NS_BIND_FN(AssetManager, watchRecursively, ev_assetmanager_watchrecursively);
+  EV_NS_BIND_FN(AssetManager, stopWatching, ev_assetmanager_stopwatching);
+  EV_NS_BIND_FN(AssetManager, update, ev_assetmanager_update);
 
   EV_NS_BIND_FN(Asset, load, ev_asset_load);
   EV_NS_BIND_FN(Asset, cloneHandle, ev_asset_clonehandle);