package color

import (
	"fmt"
	"io"
)

// Value is a type definition for the data type of a single color component.
type Value = float64

// Color represents an RGB color.
type Color struct {
	R Value
	G Value
	B Value
}

// RGB creates a new color with red, green and blue values in the range of 0.0 to 1.0.
func RGB(r Value, g Value, b Value) Color {
	return Color{r, g, b}
}

// Fprint writes the text in the given color to the writer.
func (c Color) Fprint(writer io.Writer, args ...any) {
	if !Terminal {
		fmt.Fprint(writer, args...)
		return
	}

	fmt.Fprintf(writer, "\x1b[38;2;%d;%d;%dm%s\x1b[0m", byte(c.R*255), byte(c.G*255), byte(c.B*255), fmt.Sprint(args...))
}

// Print writes the text in the given color to standard output.
func (c Color) Print(args ...any) {
	if !Terminal {
		fmt.Print(args...)
		return
	}

	fmt.Printf("\x1b[38;2;%d;%d;%dm%s\x1b[0m", byte(c.R*255), byte(c.G*255), byte(c.B*255), fmt.Sprint(args...))
}

// Printf formats according to a format specifier and writes the text in the given color to standard output.
func (c Color) Printf(format string, args ...any) {
	if !Terminal {
		fmt.Printf(format, args...)
		return
	}

	fmt.Printf("\x1b[38;2;%d;%d;%dm%s\x1b[0m", byte(c.R*255), byte(c.G*255), byte(c.B*255), fmt.Sprintf(format, args...))
}

// Println writes the text in the given color to standard output and appends a newline.
func (c Color) Println(args ...any) {
	if !Terminal {
		fmt.Println(args...)
		return
	}

	fmt.Printf("\x1b[38;2;%d;%d;%dm%s\n\x1b[0m", byte(c.R*255), byte(c.G*255), byte(c.B*255), fmt.Sprint(args...))
}