use std::fs::{self, File};

use crate::display::theme::Theme;
use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, Default, Serialize, Deserialize)]
pub struct Config {
    pub auth: Auth,
    pub theme: Theme,
}

#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct Auth {
    hostname: Option<String>,
    token: Option<String>,
}

impl Config {
    pub fn load_or_create() -> Result<Self, anyhow::Error> {
        const CONFIG_FILENAME: &str = "kk.toml";
        let xdg_dirs = xdg::BaseDirectories::with_prefix("kk")?;
        let cfg_filename =
            xdg_dirs.place_config_file(CONFIG_FILENAME)?;
        Ok(match fs::read(&cfg_filename) {
            Ok(f) => toml::from_slice(&f)?,
            Err(_) => {
                // Save default file
                let cfg = Self::default();
                let fmt_cfg = toml::to_string_pretty(&cfg)?;
                fs::write(cfg_filename, fmt_cfg)?;
                cfg
            }
        })
    }
}