/**
 * Theme configuration for the CLI TUI using Ink.
 * Defines colors, styles, and visual constants used throughout the application.
 */

import type { TextProps } from "ink";

/**
 * Color type - supports Ink color names.
 */
export type Color = TextProps["color"];

/**
 * Color palette for the application.
 * All colors are compatible with Ink's Text component.
 */
export const colors = {
  // Primary colors
  primary: "cyan" as Color,
  secondary: "blue" as Color,
  accent: "magenta" as Color,

  // Status colors
  success: "green" as Color,
  warning: "yellow" as Color,
  error: "red" as Color,
  info: "cyan" as Color,

  // Text colors
  text: "white" as Color,
  textMuted: "gray" as Color,
  textHighlight: "whiteBright" as Color,

  // Background colors
  bg: "black" as Color,
  bgSelected: "blue" as Color,
  bgHover: "gray" as Color,

  // Border colors
  border: "cyan" as Color,
  borderFocused: "yellowBright" as Color,
  borderMuted: "gray" as Color,

  // Focus highlight color (very visible)
  focus: "yellowBright" as Color,
} as const;

/**
 * Layout constants for consistent spacing.
 */
export const layout = {
  padding: {
    small: 1,
    medium: 2,
    large: 3,
  },
  margin: {
    small: 1,
    medium: 2,
    large: 3,
  },
} as const;

/**
 * ASCII art logo for the application header.
 */
export const logo = `
 ██╗  ██╗ ██████╗     ██╗    ██╗ █████╗ ██╗     ██╗     ███████╗████████╗
 ╚██╗██╔╝██╔═══██╗    ██║    ██║██╔══██╗██║     ██║     ██╔════╝╚══██╔══╝
  ╚███╔╝ ██║   ██║    ██║ █╗ ██║███████║██║     ██║     █████╗     ██║   
  ██╔██╗ ██║   ██║    ██║███╗██║██╔══██║██║     ██║     ██╔══╝     ██║   
 ██╔╝ ██╗╚██████╔╝    ╚███╔███╔╝██║  ██║███████╗███████╗███████╗   ██║   
 ╚═╝  ╚═╝ ╚═════╝      ╚══╝╚══╝ ╚═╝  ╚═╝╚══════╝╚══════╝╚══════╝   ╚═╝   
`.trim();

/**
 * Small logo for status bar.
 */
export const logoSmall = "XO Wallet";

/**
 * Helper to format satoshis for display.
 * @param satoshis - Amount in satoshis
 * @returns Formatted string with BCH amount
 */
export function formatSatoshis(satoshis: bigint | number): string {
  const value = typeof satoshis === "bigint" ? satoshis : BigInt(satoshis);
  const bch = Number(value) / 100_000_000;
  return `${bch.toFixed(8)} BCH (${value.toLocaleString()} sats)`;
}

/**
 * Helper to truncate long strings with ellipsis.
 * @param str - String to truncate
 * @param maxLength - Maximum length
 * @returns Truncated string
 */
export function truncate(str: string, maxLength: number): string {
  if (str.length <= maxLength) return str;
  return str.slice(0, maxLength - 3) + "...";
}

/**
 * Helper to format a hex string for display.
 * @param hex - Hex string
 * @param maxLength - Maximum display length
 * @returns Formatted hex string
 */
export function formatHex(hex: string, maxLength: number = 16): string {
  if (hex.length <= maxLength) return hex;
  const half = Math.floor((maxLength - 3) / 2);
  return `${hex.slice(0, half)}...${hex.slice(-half)}`;
}