Improved structure

src/utils/vfs.rs

@@ -0,0 +1,84 @@
+use std::{fs, path::Path};
+
+logger! {
+    const LOGGER "File"
+}
+
+use serde::{Deserialize, Serialize};
+
+use crate::logger;
+
+pub fn dir(path: &Path) -> crate::Result<()> {
+    if !path.exists() {
+        LOGGER.info(format!("Directory {path:?} does not exist, creating it"));
+        fs::create_dir_all(path)?;
+    }
+    Ok(())
+}
+
+pub fn read(path: &Path, default_content: &str) -> crate::Result<String> {
+    if !path.exists() {
+        LOGGER.info(format!(
+            "File {path:?} does not exist, creating it with default contents"
+        ));
+        write(path, default_content)?;
+        return Ok(default_content.to_string());
+    }
+
+    Ok(fs::read_to_string(path)?)
+}
+
+pub fn read_bytes<'a>(path: &Path, default_content: Vec<u8>) -> crate::Result<Vec<u8>> {
+    if !path.exists() {
+        LOGGER.info(format!(
+            "File {path:?} does not exist, creating it with default contents"
+        ));
+        write_bytes(path, &default_content)?;
+        return Ok(default_content);
+    }
+
+    Ok(fs::read(path)?)
+}
+
+pub fn read_config<T: Default + Serialize + for<'de> Deserialize<'de>>(
+    path: &Path,
+) -> crate::Result<T> {
+    if !path.exists() {
+        LOGGER.info(format!(
+            "File {path:?} does not exist, creating it with default contents"
+        ));
+        let default = T::default();
+        write_config(path, &default)?;
+        return Ok(default);
+    }
+
+    let read = fs::read_to_string(path)?;
+    Ok(serde_json::from_str::<T>(&read)?)
+}
+
+pub fn write(path: &Path, content: &str) -> crate::Result<()> {
+    dir(path.parent().ok_or(std::io::Error::new(
+        std::io::ErrorKind::InvalidFilename,
+        "File doesn't have a parent assigned, example: `config/config.json`",
+    ))?)?;
+    fs::write(path, content)?;
+    Ok(())
+}
+
+pub fn write_bytes(path: &Path, content: &[u8]) -> crate::Result<()> {
+    dir(path.parent().ok_or(std::io::Error::new(
+        std::io::ErrorKind::InvalidFilename,
+        "File doesn't have a parent assigned, example: `config/config.json`",
+    ))?)?;
+    fs::write(path, content)?;
+    Ok(())
+}
+
+pub fn write_config<T: Serialize>(path: &Path, content: &T) -> crate::Result<()> {
+    dir(path.parent().ok_or(std::io::Error::new(
+        std::io::ErrorKind::InvalidFilename,
+        "File doesn't have a parent assigned, example: `config/config.json`",
+    ))?)?;
+    fs::write(path, &serde_json::to_string_pretty(content)?)?;
+    Ok(())
+}