import { hexToRgba } from '@toss/utils';
import { mapValues } from 'es-toolkit';
import { alphas } from './alphas';

/**
 * 브랜드 램프 SSOT.
 *
 * 정본 = Figma `lp-pri-brand-v2` 컬렉션(도메인=mode) → color-variables.json의 `brandByDomain`
 * (2026-07-29 전수 대조 — original/accent/alpha 전 스텝 일치, 무변경). 각 도메인은
 * 16단계 `lp-pri-brand-original-100..1600` 램프를 가지며,
 * `lp-pri-brand-alpha-*`는 도메인 seed 색과 `alphas` 스텝으로 **생성**한다(구 `variation` 폐기).
 *
 * 시맨틱은 `var(--lp-pri-brand-*)`를 참조하고, `primitiveRoot.ts`가 도메인별
 * `:root[data-service-domain="X"]` 블록으로 이 값을 덮어써 4개 브랜드가 cascade로 전파된다.
 */
export const SERVICE_DOMAINS = ['search', 'scholar', 'write', 'finance'] as const;

export type ServiceDomain = (typeof SERVICE_DOMAINS)[number];

const BRAND_ORIGINAL_KEYS = [
  'lp-pri-brand-original-100',
  'lp-pri-brand-original-200',
  'lp-pri-brand-original-300',
  'lp-pri-brand-original-400',
  'lp-pri-brand-original-500',
  'lp-pri-brand-original-600',
  'lp-pri-brand-original-700',
  'lp-pri-brand-original-800',
  'lp-pri-brand-original-900',
  'lp-pri-brand-original-1000',
  'lp-pri-brand-original-1100',
  'lp-pri-brand-original-1200',
  'lp-pri-brand-original-1300',
  'lp-pri-brand-original-1400',
  'lp-pri-brand-original-1500',
  'lp-pri-brand-original-1600',
] as const;

export type BrandOriginalKey = (typeof BRAND_ORIGINAL_KEYS)[number];
export type BrandAlphaKey = `lp-pri-brand-alpha-${(typeof alphas)[number]}`;

/** 브랜드 액센트 램프 스텝(5단계). 값은 `brandRampByDomain`의 각 도메인 블록에 함께 둔다. */
const BRAND_ACCENT_KEYS = [
  'lp-pri-brand-accent-100',
  'lp-pri-brand-accent-300',
  'lp-pri-brand-accent-600',
  'lp-pri-brand-accent-900',
  'lp-pri-brand-accent-1300',
] as const;

export type BrandAccentKey = (typeof BRAND_ACCENT_KEYS)[number];

export type BrandRamp = Record<BrandOriginalKey | BrandAccentKey, string>;

export const brandRampByDomain: Record<ServiceDomain, BrandRamp> = {
  search: {
    'lp-pri-brand-original-100': '#e5f4e6',
    'lp-pri-brand-original-200': '#c4e8c8',
    'lp-pri-brand-original-300': '#a7dcaf',
    'lp-pri-brand-original-400': '#88d092',
    'lp-pri-brand-original-500': '#69c578',
    'lp-pri-brand-original-600': '#55b766',
    'lp-pri-brand-original-700': '#42a957',
    'lp-pri-brand-original-800': '#349749',
    'lp-pri-brand-original-900': '#2c783c',
    'lp-pri-brand-original-1000': '#256a33',
    'lp-pri-brand-original-1100': '#1d5829',
    'lp-pri-brand-original-1200': '#164620',
    'lp-pri-brand-original-1300': '#113718',
    'lp-pri-brand-original-1400': '#0b2310',
    'lp-pri-brand-original-1500': '#061409',
    'lp-pri-brand-original-1600': '#020803',
    'lp-pri-brand-accent-100': '#ffeccd',
    'lp-pri-brand-accent-300': '#eec47d',
    'lp-pri-brand-accent-600': '#b88f49',
    'lp-pri-brand-accent-900': '#855f0e',
    'lp-pri-brand-accent-1300': '#3b2700',
  },
  scholar: {
    'lp-pri-brand-original-100': '#f0f3e2',
    'lp-pri-brand-original-200': '#e0e7ba',
    'lp-pri-brand-original-300': '#d0db8e',
    'lp-pri-brand-original-400': '#c6d269',
    'lp-pri-brand-original-500': '#bbca44',
    'lp-pri-brand-original-600': '#a8b52d',
    'lp-pri-brand-original-700': '#8e9822',
    'lp-pri-brand-original-800': '#767d1b',
    'lp-pri-brand-original-900': '#616715',
    'lp-pri-brand-original-1000': '#5c6314',
    'lp-pri-brand-original-1100': '#4f5512',
    'lp-pri-brand-original-1200': '#41470f',
    'lp-pri-brand-original-1300': '#32370b',
    'lp-pri-brand-original-1400': '#242708',
    'lp-pri-brand-original-1500': '#151704',
    'lp-pri-brand-original-1600': '#090901',
    'lp-pri-brand-accent-100': '#ffe8e8',
    'lp-pri-brand-accent-300': '#e5c1c1',
    'lp-pri-brand-accent-600': '#af8d8e',
    'lp-pri-brand-accent-900': '#7c5d5e',
    'lp-pri-brand-accent-1300': '#3d2324',
  },
  write: {
    'lp-pri-brand-original-100': '#e4f2f8',
    'lp-pri-brand-original-200': '#c0e3f6',
    'lp-pri-brand-original-300': '#93d8f9',
    'lp-pri-brand-original-400': '#6dccf7',
    'lp-pri-brand-original-500': '#47bef4',
    'lp-pri-brand-original-600': '#29b0e9',
    'lp-pri-brand-original-700': '#0fa0db',
    'lp-pri-brand-original-800': '#0a8bbb',
    'lp-pri-brand-original-900': '#08759c',
    'lp-pri-brand-original-1000': '#086890',
    'lp-pri-brand-original-1100': '#0d5573',
    'lp-pri-brand-original-1200': '#0e435b',
    'lp-pri-brand-original-1300': '#0d3243',
    'lp-pri-brand-original-1400': '#0a242e',
    'lp-pri-brand-original-1500': '#05141c',
    'lp-pri-brand-original-1600': '#02070c',
    'lp-pri-brand-accent-100': '#f9f3a6',
    'lp-pri-brand-accent-300': '#d5cf83',
    'lp-pri-brand-accent-600': '#a09a4f',
    'lp-pri-brand-accent-900': '#70691a',
    'lp-pri-brand-accent-1300': '#302c00',
  },
  finance: {
    'lp-pri-brand-original-100': '#e7effb',
    'lp-pri-brand-original-200': '#ccdcfc',
    'lp-pri-brand-original-300': '#b2ccfb',
    'lp-pri-brand-original-400': '#94b8f9',
    'lp-pri-brand-original-500': '#76a4f8',
    'lp-pri-brand-original-600': '#588ff6',
    'lp-pri-brand-original-700': '#437cea',
    'lp-pri-brand-original-800': '#356dd4',
    'lp-pri-brand-original-900': '#2c5dbc',
    'lp-pri-brand-original-1000': '#2b5098',
    'lp-pri-brand-original-1100': '#25437b',
    'lp-pri-brand-original-1200': '#1f3561',
    'lp-pri-brand-original-1300': '#182a48',
    'lp-pri-brand-original-1400': '#111c33',
    'lp-pri-brand-original-1500': '#0a111e',
    'lp-pri-brand-original-1600': '#04060c',
    'lp-pri-brand-accent-100': '#d4f6fa',
    'lp-pri-brand-accent-300': '#b1d2d6',
    'lp-pri-brand-accent-600': '#7e9da1',
    'lp-pri-brand-accent-900': '#4f6c70',
    'lp-pri-brand-accent-1300': '#133034',
  },
};

/**
 * 도메인별 brand-alpha seed 색(rgba 베이스). brand-alpha는 seed × `alphas` 스텝으로 생성한다.
 */
const BRAND_ALPHA_SEED_BY_DOMAIN: Record<ServiceDomain, string> = {
  search: '#30773f',
  scholar: '#666d0f',
  write: '#127092',
  finance: '#4465a4',
};

/**
 * 서비스 도메인별 brand primitive override 블록의 원본.
 * original 램프 + (seed에서 생성한) brand-alpha 를 함께 흘려보낸다.
 */
export const domainPrimitiveOverrides = mapValues(brandRampByDomain, (ramp, domain) => {
  const overrides: Record<string, string> = { ...ramp };
  const seed = BRAND_ALPHA_SEED_BY_DOMAIN[domain as ServiceDomain];
  alphas.forEach((alpha) => {
    overrides[`lp-pri-brand-alpha-${alpha}`] = hexToRgba(seed.slice(1), alpha / 100);
  });
  return overrides;
}) as Record<ServiceDomain, Record<string, string>>;