use serde::{Deserialize, Serialize};
use std::fs;
use std::path::PathBuf;

#[derive(Debug, Serialize, Deserialize)]
pub struct AuthConfig {
    pub handle: String,
    pub did: String,
    pub access_jwt: String,
    pub refresh_jwt: String,
    pub pds: String,
}

pub fn config_dir() -> PathBuf {
    dirs::config_dir()
        .unwrap_or_else(|| PathBuf::from("."))
        .join("syui")
        .join("ai")
        .join("log")
}

pub fn config_path() -> PathBuf {
    config_dir().join("config.json")
}

pub fn load_config() -> Option<AuthConfig> {
    let path = config_path();
    if path.exists() {
        let content = fs::read_to_string(&path).ok()?;
        serde_json::from_str(&content).ok()
    } else {
        None
    }
}

pub fn save_config(config: &AuthConfig) -> Result<(), Box<dyn std::error::Error>> {
    let dir = config_dir();
    fs::create_dir_all(&dir)?;
    let path = config_path();
    let content = serde_json::to_string_pretty(config)?;
    fs::write(&path, content)?;
    println!("Config saved to: {}", path.display());
    Ok(())
}