1 files changed, 40 insertions, 0 deletions
diff --git a/src/save.rs b/src/save.rs
new file mode 100644
index 0000000..0f0d20b
--- /dev/null
+++ b/src/save.rs
@@ -0,0 +1,40 @@
+#[cfg(target_arch = "wasm32")]
+pub fn save<W>(id: &str, data: &W) where W: serde::Serialize {
+    let window = web_sys::window().expect("failed to get window object");
+    let storage = window.local_storage()
+        .expect("failed to get local storage")
+        .expect("local storage not present");
+    let key = format!("{}_save", id);
+    let val = serde_json::to_string(data).expect("failed to serialize save");
+    storage.set_item(&key, &val).expect("failed to set save");
+}
+
+#[cfg(target_arch = "wasm32")]
+pub fn load<W>(id: &str) -> Option<W> where W: serde::de::DeserializeOwned {
+    let window = web_sys::window().expect("failed to get window object");
+    let storage = window.local_storage()
+        .expect("failed to get local storage")
+        .expect("local storage not present");
+    let key = format!("{}_save", id);
+    let s = storage.get_item(&key).expect("failed to get save").expect("save not present");
+    let mut cur = std::io::Cursor::new(s);
+    serde_json::from_reader(&mut cur).ok()
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+pub fn save<W>(id: &str, data: &W) where W: serde::Serialize {
+    let pd = directories::ProjectDirs::from("", "milkfat", id).expect("failed to get save directory");
+    let _ = std::fs::create_dir_all(pd.data_dir());
+    let path = pd.data_dir().join("teleia.save");
+    let file = std::fs::File::create(&path).expect("failed to open save file");
+    serde_json::to_writer(file, data).expect("failed to write save file");
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+pub fn load<W>(id: &str) -> Option<W> where W: serde::de::DeserializeOwned {
+    let pd = directories::ProjectDirs::from("", "milkfat", id).expect("failed to get save directory");
+    let _ = std::fs::create_dir_all(pd.data_dir());
+    let path = pd.data_dir().join("teleia.save");
+    let file = std::fs::File::open(&path).ok()?;
+    serde_json::from_reader(file).ok()
+}