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pub mod color;
pub mod rgb;

pub use color::*;
pub use rgb::*;

use std::fmt;

#[derive(Debug, Clone)]
pub struct ColoredText {
    foreground_color: Option<Color>,
    background_color: Option<Color>,
    text: String,
}

impl ColoredText {
    pub fn new(text: &str) -> Self {
        Self {
            foreground_color: None,
            background_color: None,
            text: text.to_string(),
        }
    }

    fn with_foreground_color(&self, color: Color) -> Self {
        Self {
            foreground_color: Some(color),
            background_color: self.background_color,
            text: self.text.clone(),
        }
    }

    fn with_background_color(&self, color: Color) -> Self {
        Self {
            foreground_color: self.foreground_color,
            background_color: Some(color),
            text: self.text.clone(),
        }
    }

    pub(crate) fn ansi_color_code(&self) -> String {
        let mut code = String::from("\x1B[");

        if let Some(fgcolor) = self.foreground_color {
            code.push_str(&fgcolor.to_foreground_color_code());
        }

        if let Some(bgcolor) = self.background_color {
            if self.foreground_color.is_some() {
                code.push(';');
            }
            code.push_str(&bgcolor.to_background_color_code());
        }

        code.push('m');
        code
    }
}

impl fmt::Display for ColoredText {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}{}\x1B[0m", self.ansi_color_code(), self.text)
    }
}

pub trait Colorize : fmt::Display {
    fn to_colored(&self) -> ColoredText;
    fn fg(&self, color: Color) -> ColoredText;
    fn bg(&self, color: Color) -> ColoredText;
    fn fg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText;
    fn bg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText;
}

impl Colorize for ColoredText {
    fn to_colored(&self) -> ColoredText {
        self.clone()
    }

    fn fg(&self, color: Color) -> ColoredText {
        self.with_foreground_color(color)
    }

    fn bg(&self, color: Color) -> ColoredText {
        self.with_background_color(color)
    }

    fn fg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        self.with_foreground_color(Color::TrueColor(RGB::new(r, g, b)))
    }

    fn bg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        self.with_background_color(Color::TrueColor(RGB::new(r, g, b)))
    }
}

impl Colorize for str {
    fn to_colored(&self) -> ColoredText {
        ColoredText::new(self)
    }

    fn fg(&self, color: Color) -> ColoredText {
        ColoredText::new(self)
        .with_foreground_color(color)
    }

    fn bg(&self, color: Color) -> ColoredText {
        ColoredText::new(self)
        .with_background_color(color)
    }

    fn fg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        ColoredText::new(self)
        .with_foreground_color(Color::TrueColor(RGB::new(r, g, b)))
    }

    fn bg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        ColoredText::new(self)
        .with_background_color(Color::TrueColor(RGB::new(r, g, b)))
    }
}

impl Colorize for String {
    fn to_colored(&self) -> ColoredText {
        ColoredText::new(self)
    }

    fn fg(&self, color: Color) -> ColoredText {
        ColoredText::new(self)
        .with_foreground_color(color)
    }

    fn bg(&self, color: Color) -> ColoredText {
        ColoredText::new(self)
        .with_background_color(color)
    }

    fn fg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        ColoredText::new(self)
        .with_foreground_color(Color::TrueColor(RGB::new(r, g, b)))
    }

    fn bg_rgb(&self, r: u8, g: u8, b: u8) -> ColoredText {
        ColoredText::new(self)
        .with_background_color(Color::TrueColor(RGB::new(r, g, b)))
    }
}