use super::level::{self, Level};
use figment::{providers::Serialized, value, Figment, Metadata, Profile, Provider};
use serde::{Deserialize, Serialize};
use std::path::PathBuf;

#[derive(Debug, PartialEq, Eq, Serialize, Deserialize)]
#[serde(default)]
pub struct Config {
    #[serde(with = "level")]
    pub stdout: Option<Level>,
    #[serde(with = "level")]
    pub level: Option<Level>,
    pub path: PathBuf,
}

impl Config {
    // Extract the configuration from any `Provider`
    pub fn extract<T: Provider>(provider: T) -> figment::error::Result<Config> {
        Figment::from(provider).extract()
    }

    // Provide a default provider, a `Figment`.
    pub fn figment() -> Figment {
        Figment::from(Config::default())
    }
}

impl Provider for Config {
    fn metadata(&self) -> Metadata {
        Metadata::named("Tmuxr path config")
    }

    fn data(&self) -> figment::error::Result<value::Map<Profile, value::Dict>> {
        Serialized::defaults(self).data()
    }
}

impl Default for Config {
    fn default() -> Self {
        Self {
            stdout: Some(Level::ERROR),
            level: None,
            path: dirs::cache_dir()
                .map(|p| p.join("tmuxr"))
                .unwrap_or_default()
                .join("tmuxr.log"),
        }
    }
}