use config::{Config, FileFormat};
use log::{error, info};
use std::fs::File;
use std::io::Write;

use crate::ui_code::AppState;

pub fn load_config() -> AppState {
    let settings = Config::builder()
        .add_source(config::File::new("./settings.toml", FileFormat::Toml))
        .build();

    if let Ok(val) = settings {
        if let Ok(state) = val.try_deserialize() {
            state
        } else {
            AppState::default()
        }
    } else {
        AppState::default()
    }
}

pub fn save_config(config: &AppState) {
    match toml::to_string(&config) {
        Ok(toml_str) => match File::create("./settings.toml") {
            Ok(mut file) => match file.write_all(toml_str.as_bytes()) {
                Ok(_) => {
                    info!("Config file saved succesfully");
                }
                Err(e) => {
                    error!("Couldn't write config file contents to open file: {e}");
                }
            },
            Err(e) => {
                error!("Couldn't open settings file: {e}");
            }
        },
        Err(e) => {
            error!("Could not serialize app state: {e}");
        }
    }
}