audb_core/features/config/
state.rs

1use anyhow::{anyhow, Result};
2use directories::BaseDirs;
3use std::fs;
4use std::path::PathBuf;
5
6pub struct DeviceState;
7
8impl DeviceState {
9    pub fn state_path() -> Result<PathBuf> {
10        let base_dirs = BaseDirs::new().ok_or_else(|| anyhow!("Could not determine home directory"))?;
11        let config_dir = base_dirs.config_dir().join("audb");
12        fs::create_dir_all(&config_dir)?;
13        Ok(config_dir.join("current_device"))
14    }
15
16    pub fn get_current() -> Result<String> {
17        let path = Self::state_path()?;
18        if !path.exists() {
19            return Err(anyhow!("No device selected. Use 'audb select <identifier>' to select a device"));
20        }
21
22        let host = fs::read_to_string(&path)?.trim().to_string();
23        if host.is_empty() {
24            return Err(anyhow!("No device selected"));
25        }
26
27        Ok(host)
28    }
29
30    pub fn set_current(host: &str) -> Result<()> {
31        let path = Self::state_path()?;
32        fs::write(&path, host)?;
33        Ok(())
34    }
35
36    pub fn clear_current() -> Result<()> {
37        let path = Self::state_path()?;
38        if path.exists() {
39            fs::remove_file(&path)?;
40        }
41        Ok(())
42    }
43}
audb_core/features/config/state.rs

audb_core/features/config/
state.rs
