export const baseColors = {
  // Base colors
  white: "#ffffff",
  black: "#000000",

  // Zinc scale (primary gray palette)
  zinc: {
    50: "#fafafa",
    100: "#f4f4f5",
    200: "#e4e4e7",
    300: "#d4d4d8",
    400: "#a1a1aa",
    500: "#71717a",
    600: "#52525b",
    700: "#3f3f46",
    800: "#27272a",
    850: "#1a1a1d",
    900: "#18181b",
    950: "#121214",
  },

  // Gray scale
  gray: {
    50: "#f9fafb",
    100: "#f3f4f6",
    200: "#e5e7eb",
    300: "#d1d5db",
    400: "#9ca3af",
    500: "#6b7280",
    600: "#4b5563",
    700: "#374151",
    800: "#1f2937",
    900: "#111827",
  },

  // Slate scale
  slate: {
    200: "#e2e8f0",
  },

  // Blue scale
  blue: {
    50: "#eff6ff",
    100: "#dbeafe",
    200: "#bfdbfe",
    300: "#93c5fd",
    400: "#60a5fa",
    500: "#3b82f6",
    600: "#2563eb",
    700: "#1d4ed8",
    800: "#1e40af",
    900: "#1e3a8a",
    950: "#172554",
  },

  // Green scale
  green: {
    100: "#dcfce7",
    200: "#bbf7d0",
    400: "#4ade80",
    500: "#22c55e",
    600: "#16a34a",
    800: "#166534",
    900: "#14532d",
  },

  // Red scale
  red: {
    100: "#fee2e2",
    200: "#fecaca",
    300: "#fca5a5",
    500: "#ef4444",
    600: "#dc2626",
    800: "#991b1b",
    900: "#7f1d1d",
  },

  // Teal scale
  teal: {
    200: "#99f6e4",
  },

  // Amber scale
  amber: {
    500: "#f59e0b",
  },

  // Yellow scale
  yellow: {
    400: "#fbbf24",
  },

  // Purple scale
  purple: {
    500: "#a855f7",
    600: "#9333ea",
  },

  // Orange scale
  orange: {
    500: "#f97316",
    600: "#ea580c",
  },
} as const;

// Semantic color tokens - Layer-based system
const lightSemanticColors = {
  // Surfaces (layers) - shifted one step lighter
  surface0: "#ffffff", // App background
  surface1: "#fafafa", // Subtle hover (was zinc-100, now zinc-50)
  surface2: "#f4f4f5", // Elevated: badges, inputs, sheets (was zinc-200, now zinc-100)
  surface3: "#e4e4e7", // Highest elevation (was zinc-300, now zinc-200)
  surface4: "#d4d4d8", // Extra emphasis (was zinc-400, now zinc-300)
  surfaceDiffEmpty: "#f6f6f6", // Empty side of split diff rows, between surface1 and surface2 and biased toward surface2
  surfaceSidebar: "#f4f4f5", // Sidebar background (darker than main)
  surfaceWorkspace: "#ffffff", // Workspace main background

  // Text
  foreground: "#09090b",
  foregroundMuted: "#71717a",

  // Controls
  scrollbarHandle: "#3f3f46", // zinc-700

  // Borders - shifted one step lighter
  border: "#e4e4e7", // (was zinc-200, now zinc-200 - keep for contrast)
  borderAccent: "#ececf1", // Softer accent border for low-emphasis outlines

  // Brand
  accent: "#20744A",
  accentBright: "#239956",
  accentForeground: "#ffffff",

  // Semantic
  destructive: "#dc2626",
  destructiveForeground: "#ffffff",
  success: "#20744A",
  successForeground: "#ffffff",

  // Legacy aliases (for gradual migration)
  background: "#ffffff",
  popover: "#ffffff",
  popoverForeground: "#09090b",
  primary: "#18181b",
  primaryForeground: "#fafafa",
  secondary: "#f4f4f5",
  secondaryForeground: "#09090b",
  muted: "#f4f4f5",
  mutedForeground: "#71717a",
  accentBorder: "#ececf1",
  input: "#f4f4f5",
  ring: "#18181b",

  terminal: {
    background: "#ffffff",
    foreground: "#09090b",
    cursor: "#09090b",
    cursorAccent: "#ffffff",
    selectionBackground: "rgba(0, 0, 0, 0.15)",
    selectionForeground: "#09090b",

    black: "#09090b",
    red: "#dc2626",
    green: "#16a34a",
    yellow: "#ca8a04",
    blue: "#2563eb",
    magenta: "#9333ea",
    cyan: "#0891b2",
    white: "#ffffff",

    brightBlack: "#3f3f46",
    brightRed: "#ef4444",
    brightGreen: "#22c55e",
    brightYellow: "#f59e0b",
    brightBlue: "#3b82f6",
    brightMagenta: "#a855f7",
    brightCyan: "#06b6d4",
    brightWhite: "#fafafa",
  },
} as const;

const darkSemanticColors = {
  // Surfaces (layers) — subtle teal tint
  surface0: "#181B1A", // App background
  surface1: "#1E2120", // Subtle hover
  surface2: "#272A29", // Elevated: badges, inputs, sheets
  surface3: "#434645", // Highest elevation
  surface4: "#595B5B", // Extra emphasis
  surfaceDiffEmpty: "#252827", // Empty side of split diff rows, between surface1 and surface2 and biased toward surface2
  surfaceSidebar: "#141716", // Sidebar background (darker than main)
  surfaceWorkspace: "#1E2120", // Workspace main background (surface1)

  // Text
  foreground: "#fafafa",
  foregroundMuted: "#A1A5A4",

  // Controls
  scrollbarHandle: "#717574", // zinc-500 w/ teal tint

  // Borders
  border: "#252B2A",
  borderAccent: "#2F3534",

  // Brand
  accent: "#20744A",
  accentBright: "#7ccba0",
  accentForeground: "#ffffff",

  // Semantic
  destructive: "#ef4444",
  destructiveForeground: "#ffffff",
  success: "#20744A",
  successForeground: "#ffffff",

  // Legacy aliases (for gradual migration)
  background: "#181B1A",
  popover: "#272A29",
  popoverForeground: "#fafafa",
  primary: "#fafafa",
  primaryForeground: "#181B1A",
  secondary: "#272A29",
  secondaryForeground: "#fafafa",
  muted: "#272A29",
  mutedForeground: "#A1A5A4",
  accentBorder: "#2F3534",
  input: "#272A29",
  ring: "#d4d4d8",

  terminal: {
    background: "#181B1A",
    foreground: "#fafafa",
    cursor: "#fafafa",
    cursorAccent: "#181B1A",
    selectionBackground: "rgba(255, 255, 255, 0.2)",
    selectionForeground: "#fafafa",

    black: "#141716",
    red: "#ef4444",
    green: "#22c55e",
    yellow: "#f59e0b",
    blue: "#3b82f6",
    magenta: "#a855f7",
    cyan: "#06b6d4",
    white: "#e4e4e7",

    brightBlack: "#434645",
    brightRed: "#f87171",
    brightGreen: "#4ade80",
    brightYellow: "#fbbf24",
    brightBlue: "#60a5fa",
    brightMagenta: "#c084fc",
    brightCyan: "#22d3ee",
    brightWhite: "#ffffff",
  },
} as const;

const commonTheme = {
  spacing: {
    0: 0,
    1: 4,
    1.5: 6,
    2: 8,
    3: 12,
    4: 16,
    6: 24,
    8: 32,
    12: 48,
    16: 64,
    20: 80,
    24: 96,
    32: 128,
  },

  fontSize: {
    xs: 12,
    sm: 14,
    base: 16,
    lg: 18,
    xl: 20,
    "2xl": 22,
    "3xl": 26,
    "4xl": 34,
  },

  lineHeight: {
    diff: 22,
  },

  iconSize: {
    xs: 12,
    sm: 14,
    md: 16,
    lg: 20,
  },

  fontWeight: {
    normal: "normal" as const,
    medium: "500" as const,
    semibold: "600" as const,
    bold: "bold" as const,
  },

  borderRadius: {
    none: 0,
    sm: 2,
    base: 4,
    md: 6,
    lg: 8,
    xl: 12,
    "2xl": 16,
    full: 9999,
  },

  borderWidth: {
    0: 0,
    1: 1,
    2: 2,
  },

  opacity: {
    0: 0,
    50: 0.5,
    100: 1,
  },
} as const;

export const darkTheme = {
  colorScheme: "dark" as const,
  colors: {
    ...darkSemanticColors,
    palette: baseColors,
  },
  shadow: {
    sm: {
      shadowColor: "rgba(0, 0, 0, 0.25)",
      shadowOffset: { width: 0, height: 2 },
      shadowRadius: 4,
      elevation: 2,
    },
    md: {
      shadowColor: "rgba(0, 0, 0, 0.20)",
      shadowOffset: { width: 0, height: 4 },
      shadowRadius: 8,
      elevation: 8,
    },
    lg: {
      shadowColor: "rgba(0, 0, 0, 0.40)",
      shadowOffset: { width: 0, height: 12 },
      shadowRadius: 24,
      elevation: 8,
    },
  },
  ...commonTheme,
} as const;

export const lightTheme = {
  colorScheme: "light" as const,
  colors: {
    ...lightSemanticColors,
    palette: baseColors,
  },
  shadow: {
    sm: {
      shadowColor: "rgba(0, 0, 0, 0.02)",
      shadowOffset: { width: 0, height: 2 },
      shadowRadius: 8,
      elevation: 2,
    },
    md: {
      shadowColor: "rgba(0, 0, 0, 0.04)",
      shadowOffset: { width: 0, height: 4 },
      shadowRadius: 16,
      elevation: 4,
    },
    lg: {
      shadowColor: "rgba(0, 0, 0, 0.08)",
      shadowOffset: { width: 0, height: 8 },
      shadowRadius: 24,
      elevation: 8,
    },
  },
  ...commonTheme,
} as const;

// Keep compatibility with existing code
export const theme = darkTheme;

// Export a union type that works for both themes
export type Theme = typeof darkTheme | typeof lightTheme;