pixiv-dl 1.0.0

CLI tool for searching and downloading illustrations from Pixiv
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use std::path::PathBuf;

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Default)]
pub struct Config {
    pub refresh_token: Option<String>,
}

fn config_path() -> Option<PathBuf> {
    dirs::config_dir().map(|d| d.join("pixiv-dl").join("config.json"))
}

pub fn config_path_display() -> Option<String> {
    config_path().map(|p| p.display().to_string())
}

pub fn load() -> Config {
    let Some(path) = config_path() else {
        return Config::default();
    };
    std::fs::read_to_string(&path)
        .ok()
        .and_then(|s| serde_json::from_str(&s).ok())
        .unwrap_or_default()
}

pub fn save(config: &Config) -> Result<(), Box<dyn std::error::Error>> {
    let path = config_path().ok_or("Could not determine config directory")?;
    if let Some(parent) = path.parent() {
        std::fs::create_dir_all(parent)?;
    }
    std::fs::write(&path, serde_json::to_string_pretty(config)?)?;
    Ok(())
}