/**
 * Terminal color theme model. Palette layout mirrors xterm.js ITheme.
 * Values of builtin themes come from the public-domain iTerm2-Color-Schemes / xterm-theme collections.
 */

export interface ThemeColors {
  background: string
  foreground: string
  cursor: string
  /** accent block behind cursor text; falls back to foreground if omitted */
  cursorAccent?: string
  selectionBackground: string
  black: string
  red: string
  green: string
  yellow: string
  blue: string
  magenta: string
  cyan: string
  white: string
  brightBlack: string
  brightRed: string
  brightGreen: string
  brightYellow: string
  brightBlue: string
  brightMagenta: string
  brightCyan: string
  brightWhite: string
}

export interface TerminalTheme {
  id: string
  name: string
  builtin: boolean
  colors: ThemeColors
}

export const DEFAULT_DARK: TerminalTheme = {
  id: 'default-dark',
  name: 'OpenTerminal Dark',
  builtin: true,
  colors: {
    background: '#1e1e1e',
    foreground: '#cccccc',
    cursor: '#ffffff',
    cursorAccent: '#1e1e1e',
    selectionBackground: '#264f78',
    black: '#000000',
    red: '#cd3131',
    green: '#0dbc79',
    yellow: '#e5e510',
    blue: '#2472c8',
    magenta: '#bc3fbc',
    cyan: '#11a8cd',
    white: '#e5e5e5',
    brightBlack: '#666666',
    brightRed: '#f14c4c',
    brightGreen: '#23d18b',
    brightYellow: '#f5f543',
    brightBlue: '#3b8eea',
    brightMagenta: '#d670d6',
    brightCyan: '#29b8db',
    brightWhite: '#ffffff'
  }
}

export const BUILTIN_THEMES: TerminalTheme[] = [
  DEFAULT_DARK,
  {
    id: 'dracula',
    name: 'Dracula',
    builtin: true,
    colors: {
      background: '#282a36',
      foreground: '#f8f8f2',
      cursor: '#f8f8f2',
      cursorAccent: '#282a36',
      selectionBackground: '#44475a',
      black: '#21222c',
      red: '#ff5555',
      green: '#50fa7b',
      yellow: '#f1fa8c',
      blue: '#bd93f9',
      magenta: '#ff79c6',
      cyan: '#8be9fd',
      white: '#f8f8f2',
      brightBlack: '#6272a4',
      brightRed: '#ff6e6e',
      brightGreen: '#69ff94',
      brightYellow: '#ffffa5',
      brightBlue: '#d6acff',
      brightMagenta: '#ff92df',
      brightCyan: '#a4ffff',
      brightWhite: '#ffffff'
    }
  },
  {
    id: 'one-half-dark',
    name: 'One Half Dark',
    builtin: true,
    colors: {
      background: '#282c34',
      foreground: '#dcdfe4',
      cursor: '#61afef',
      cursorAccent: '#282c34',
      selectionBackground: '#3e4451',
      black: '#282c34',
      red: '#e06c75',
      green: '#98c379',
      yellow: '#e5c07b',
      blue: '#61afef',
      magenta: '#c678dd',
      cyan: '#56b6c2',
      white: '#dcdfe4',
      brightBlack: '#5c6370',
      brightRed: '#e06c75',
      brightGreen: '#98c379',
      brightYellow: '#e5c07b',
      brightBlue: '#61afef',
      brightMagenta: '#c678dd',
      brightCyan: '#56b6c2',
      brightWhite: '#ffffff'
    }
  },
  {
    id: 'one-half-light',
    name: 'One Half Light',
    builtin: true,
    colors: {
      background: '#fafafa',
      foreground: '#383a42',
      cursor: '#383a42',
      cursorAccent: '#fafafa',
      selectionBackground: '#d2d6db',
      black: '#383a42',
      red: '#e45649',
      green: '#50a14f',
      yellow: '#c18401',
      blue: '#0184bc',
      magenta: '#a626a4',
      cyan: '#0997b3',
      white: '#fafafa',
      brightBlack: '#4f525e',
      brightRed: '#e06c75',
      brightGreen: '#98c379',
      brightYellow: '#e5c07b',
      brightBlue: '#61afef',
      brightMagenta: '#c678dd',
      brightCyan: '#56b6c2',
      brightWhite: '#ffffff'
    }
  },
  {
    id: 'solarized-dark',
    name: 'Solarized Dark',
    builtin: true,
    colors: {
      background: '#002b36',
      foreground: '#839496',
      cursor: '#93a1a1',
      cursorAccent: '#002b36',
      selectionBackground: '#073642',
      black: '#002b36',
      red: '#dc322f',
      green: '#859900',
      yellow: '#b58900',
      blue: '#268bd2',
      magenta: '#d33682',
      cyan: '#2aa198',
      white: '#eee8d5',
      brightBlack: '#073642',
      brightRed: '#cb4b16',
      brightGreen: '#586e75',
      brightYellow: '#657b83',
      brightBlue: '#839496',
      brightMagenta: '#6c71c4',
      brightCyan: '#93a1a1',
      brightWhite: '#fdf6e3'
    }
  },
  {
    id: 'solarized-light',
    name: 'Solarized Light',
    builtin: true,
    colors: {
      background: '#fdf6e3',
      foreground: '#657b83',
      cursor: '#586e75',
      cursorAccent: '#fdf6e3',
      selectionBackground: '#eee8d5',
      black: '#073642',
      red: '#dc322f',
      green: '#859900',
      yellow: '#b58900',
      blue: '#268bd2',
      magenta: '#d33682',
      cyan: '#2aa198',
      white: '#eee8d5',
      brightBlack: '#93a1a1',
      brightRed: '#cb4b16',
      brightGreen: '#586e75',
      brightYellow: '#657b83',
      brightBlue: '#839496',
      brightMagenta: '#6c71c4',
      brightCyan: '#93a1a1',
      brightWhite: '#fdf6e3'
    }
  },
  {
    id: 'gruvbox-dark',
    name: 'Gruvbox Dark',
    builtin: true,
    colors: {
      background: '#282828',
      foreground: '#ebdbb2',
      cursor: '#ebdbb2',
      cursorAccent: '#282828',
      selectionBackground: '#504945',
      black: '#282828',
      red: '#cc241d',
      green: '#98971a',
      yellow: '#d79921',
      blue: '#458588',
      magenta: '#b16286',
      cyan: '#689d6a',
      white: '#a89984',
      brightBlack: '#928374',
      brightRed: '#fb4934',
      brightGreen: '#b8bb26',
      brightYellow: '#fabd2f',
      brightBlue: '#83a598',
      brightMagenta: '#d3869b',
      brightCyan: '#8ec07c',
      brightWhite: '#ebdbb2'
    }
  },
  {
    id: 'nord',
    name: 'Nord',
    builtin: true,
    colors: {
      background: '#2e3440',
      foreground: '#d8dee9',
      cursor: '#d8dee9',
      cursorAccent: '#2e3440',
      selectionBackground: '#434c5e',
      black: '#3b4252',
      red: '#bf616a',
      green: '#a3be8c',
      yellow: '#ebcb8b',
      blue: '#81a1c1',
      magenta: '#b48ead',
      cyan: '#88c0d0',
      white: '#e5e9f0',
      brightBlack: '#4c566a',
      brightRed: '#bf616a',
      brightGreen: '#a3be8c',
      brightYellow: '#ebcb8b',
      brightBlue: '#81a1c1',
      brightMagenta: '#b48ead',
      brightCyan: '#8fbcbb',
      brightWhite: '#eceff4'
    }
  },
  {
    id: 'monokai',
    name: 'Monokai',
    builtin: true,
    colors: {
      background: '#272822',
      foreground: '#f8f8f2',
      cursor: '#f8f8f0',
      cursorAccent: '#272822',
      selectionBackground: '#49483e',
      black: '#272822',
      red: '#f92672',
      green: '#a6e22e',
      yellow: '#f4bf75',
      blue: '#66d9ef',
      magenta: '#ae81ff',
      cyan: '#a1efe4',
      white: '#f8f8f2',
      brightBlack: '#75715e',
      brightRed: '#f92672',
      brightGreen: '#a6e22e',
      brightYellow: '#f4bf75',
      brightBlue: '#66d9ef',
      brightMagenta: '#ae81ff',
      brightCyan: '#a1efe4',
      brightWhite: '#f9f8f5'
    }
  },
  {
    id: 'github-light',
    name: 'GitHub Light',
    builtin: true,
    colors: {
      background: '#ffffff',
      foreground: '#4d4d4c',
      cursor: '#4d4d4c',
      cursorAccent: '#ffffff',
      selectionBackground: '#dcdcdc',
      black: '#3e3e3e',
      red: '#c91b00',
      green: '#00c200',
      yellow: '#c7c400',
      blue: '#0225c7',
      magenta: '#c930c7',
      cyan: '#00c5c7',
      white: '#c7c7c7',
      brightBlack: '#676767',
      brightRed: '#ff6d67',
      brightGreen: '#5ff967',
      brightYellow: '#ffff6c',
      brightBlue: '#6871ff',
      brightMagenta: '#ff76ff',
      brightCyan: '#5ffdff',
      brightWhite: '#ffffff'
    }
  },
  {
    id: 'afterglow',
    name: 'Afterglow',
    builtin: true,
    colors: {
      background: '#1f1f1f',
      foreground: '#d0d0d0',
      cursor: '#f5f5f5',
      cursorAccent: '#1f1f1f',
      selectionBackground: '#4a4a4a',
      black: '#1f1f1f',
      red: '#ac4142',
      green: '#7e8e50',
      yellow: '#e5b567',
      blue: '#6c99bb',
      magenta: '#9f4e85',
      cyan: '#508451',
      white: '#d0d0d0',
      brightBlack: '#5a5a5a',
      brightRed: '#ac4142',
      brightGreen: '#7e8e50',
      brightYellow: '#e5b567',
      brightBlue: '#6c99bb',
      brightMagenta: '#9f4e85',
      brightCyan: '#508451',
      brightWhite: '#f5f5f5'
    }
  },
  {
    id: 'material-dark',
    name: 'Material Dark',
    builtin: true,
    colors: {
      background: '#263238',
      foreground: '#eeffff',
      cursor: '#ffffff',
      cursorAccent: '#263238',
      selectionBackground: '#2a4153',
      black: '#263238',
      red: '#f07178',
      green: '#c3e88d',
      yellow: '#ffcb6b',
      blue: '#82aaff',
      magenta: '#c792ea',
      cyan: '#89ddff',
      white: '#eeeeee',
      brightBlack: '#546e7a',
      brightRed: '#f07178',
      brightGreen: '#c3e88d',
      brightYellow: '#ffcb6b',
      brightBlue: '#82aaff',
      brightMagenta: '#c792ea',
      brightCyan: '#89ddff',
      brightWhite: '#ffffff'
    }
  }
]

/** Resolve a theme by id; falls back to the default dark theme. */
export function getThemeById(id: string, customThemes: TerminalTheme[] = []): TerminalTheme {
  return [...BUILTIN_THEMES, ...customThemes].find((t) => t.id === id) ?? DEFAULT_DARK
}