use crate::app::entry::Entry;
use serde::{Deserialize, Serialize};
use std::fmt::Display;

#[derive(Debug, Serialize, Deserialize)]
pub struct Settings {
    pub entries: Vec<Entry>,
}

impl Display for Settings {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "Total Entries: {}", self.entries.len())
    }
}

impl Settings {
    pub fn new(config: &String) -> Self {
        let data = std::fs::read_to_string(config);
        match data {
            Ok(data) => serde_json::from_str::<Settings>(&data).expect("Settings file corrupted"),
            Err(_) => {
                let newSet = Settings { entries: vec![] };
                let payload = serde_json::to_string_pretty(&newSet).unwrap();
                let _ = std::fs::write(config, payload);
                newSet
            }
        }
    }

    pub fn save(&self, config: &String) {
        let payload = serde_json::to_string(self).unwrap();
        let _ = std::fs::write(config, payload);
    }
}