use clap::ValueEnum;
use ratatui::symbols::shade;
use serde::{Deserialize, Serialize};

#[derive(Debug, Copy, Clone, ValueEnum, Default, Serialize, Deserialize)]
pub enum Style {
    #[default]
    #[value(name = "full", alias = "f")]
    Full,
    #[value(name = "light", alias = "l")]
    Light,
    #[value(name = "medium", alias = "m")]
    Medium,
    #[value(name = "dark", alias = "d")]
    Dark,
    #[value(name = "thick", alias = "t")]
    Thick,
    #[value(name = "cross", alias = "c")]
    Cross,
    /// https://en.wikipedia.org/wiki/Braille_Patterns
    /// Note: Might not be supported in all terminals
    /// see https://docs.rs/ratatui/latest/src/ratatui/symbols.rs.html#150
    #[value(name = "braille", alias = "b")]
    Braille,
}

impl Style {
    pub fn next(&self) -> Self {
        match self {
            Style::Full => Style::Dark,
            Style::Dark => Style::Medium,
            Style::Medium => Style::Light,
            Style::Light => Style::Braille,
            Style::Braille => Style::Thick,
            Style::Thick => Style::Cross,
            Style::Cross => Style::Full,
        }
    }

    pub fn get_digit_symbol(&self) -> &str {
        match &self {
            Style::Full => shade::FULL,
            Style::Light => shade::LIGHT,
            Style::Medium => shade::MEDIUM,
            Style::Dark => shade::DARK,
            Style::Cross => "╬",
            Style::Thick => "┃",
            Style::Braille => "⣿",
        }
    }
}