use syntect::highlighting::{Theme as SyntectTheme, ThemeSet as SyntectThemeSet};

/// These represent the theme that the user selects
pub enum ThemeDefaults {
    Base16OceanDark,
    Base16EightiesDark,
    Base16MochaDark,
    Base16OceanLight,
    InspiredGithub,
    SolarizedDark,
    SolarizedLight,
}

impl ThemeDefaults {
    pub fn as_syntect_name(self) -> &'static str {
        match self {
            Self::Base16OceanDark => "base16-ocean.dark",
            Self::Base16EightiesDark => "base16-eighties.dark",
            Self::Base16MochaDark => "base16-mocha.dark",
            Self::Base16OceanLight => "base16-ocean.light",
            Self::InspiredGithub => "InspiredGitHub",
            Self::SolarizedDark => "Solarized (dark)",
            Self::SolarizedLight => "Solarized (light)",
        }
    }
}

impl From<ThemeDefaults> for SyntectTheme {
    fn from(default: ThemeDefaults) -> Self {
        let mut default_themes = SyntectThemeSet::load_defaults();
        default_themes
            .themes
            .remove(default.as_syntect_name())
            .expect("Included with defaults")
    }
}