feat: implement Figlet, Pastel, and Unit tools with a unified layout

- Add Figlet text converter with font selection and history
- Add Pastel color palette generator and manipulation suite
- Add comprehensive Units converter with category-based logic
- Introduce AppShell with Sidebar and Header for navigation
- Modernize theme system with CSS variables and new animations
- Update project configuration and dependencies
This commit is contained in:
2026-02-22 21:35:53 +01:00
parent ff6bb873eb
commit 2000623c67
540 changed files with 338653 additions and 809 deletions

248
lib/pastel/api/client.ts Normal file
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import type {
ApiResponse,
ColorInfoRequest,
ColorInfoData,
ConvertFormatRequest,
ConvertFormatData,
ColorManipulationRequest,
ColorManipulationData,
ColorMixRequest,
ColorMixData,
RandomColorsRequest,
RandomColorsData,
DistinctColorsRequest,
DistinctColorsData,
GradientRequest,
GradientData,
ColorDistanceRequest,
ColorDistanceData,
ColorSortRequest,
ColorSortData,
ColorBlindnessRequest,
ColorBlindnessData,
TextColorRequest,
TextColorData,
NamedColorsData,
NamedColorSearchRequest,
NamedColorSearchData,
HealthData,
CapabilitiesData,
PaletteGenerateRequest,
PaletteGenerateData,
} from './types';
import { pastelWASM } from './wasm-client';
export class PastelAPIClient {
private baseURL: string;
constructor(baseURL?: string) {
// Use the Next.js API proxy route for runtime configuration
// This allows changing the backend API URL without rebuilding
this.baseURL = baseURL || '/api/pastel';
}
private async request<T>(
endpoint: string,
options?: RequestInit
): Promise<ApiResponse<T>> {
// Endpoint already includes /api/v1 prefix on backend,
// but our proxy route expects paths after /api/v1/
const url = `${this.baseURL}${endpoint}`;
try {
const response = await fetch(url, {
...options,
headers: {
'Content-Type': 'application/json',
...options?.headers,
},
});
const data = await response.json();
if (!response.ok) {
return {
success: false,
error: data.error || {
code: 'INTERNAL_ERROR',
message: 'An unknown error occurred',
},
};
}
return data;
} catch (error) {
return {
success: false,
error: {
code: 'NETWORK_ERROR',
message: error instanceof Error ? error.message : 'Network request failed',
},
};
}
}
// Color Information
async getColorInfo(request: ColorInfoRequest): Promise<ApiResponse<ColorInfoData>> {
return this.request<ColorInfoData>('/colors/info', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Format Conversion
async convertFormat(request: ConvertFormatRequest): Promise<ApiResponse<ConvertFormatData>> {
return this.request<ConvertFormatData>('/colors/convert', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Color Manipulation
async lighten(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/lighten', {
method: 'POST',
body: JSON.stringify(request),
});
}
async darken(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/darken', {
method: 'POST',
body: JSON.stringify(request),
});
}
async saturate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/saturate', {
method: 'POST',
body: JSON.stringify(request),
});
}
async desaturate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/desaturate', {
method: 'POST',
body: JSON.stringify(request),
});
}
async rotate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/rotate', {
method: 'POST',
body: JSON.stringify(request),
});
}
async complement(colors: string[]): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/complement', {
method: 'POST',
body: JSON.stringify({ colors }),
});
}
async grayscale(colors: string[]): Promise<ApiResponse<ColorManipulationData>> {
return this.request<ColorManipulationData>('/colors/grayscale', {
method: 'POST',
body: JSON.stringify({ colors }),
});
}
async mix(request: ColorMixRequest): Promise<ApiResponse<ColorMixData>> {
return this.request<ColorMixData>('/colors/mix', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Color Generation
async generateRandom(request: RandomColorsRequest): Promise<ApiResponse<RandomColorsData>> {
return this.request<RandomColorsData>('/colors/random', {
method: 'POST',
body: JSON.stringify(request),
});
}
async generateDistinct(request: DistinctColorsRequest): Promise<ApiResponse<DistinctColorsData>> {
return this.request<DistinctColorsData>('/colors/distinct', {
method: 'POST',
body: JSON.stringify(request),
});
}
async generateGradient(request: GradientRequest): Promise<ApiResponse<GradientData>> {
return this.request<GradientData>('/colors/gradient', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Color Analysis
async calculateDistance(request: ColorDistanceRequest): Promise<ApiResponse<ColorDistanceData>> {
return this.request<ColorDistanceData>('/colors/distance', {
method: 'POST',
body: JSON.stringify(request),
});
}
async sortColors(request: ColorSortRequest): Promise<ApiResponse<ColorSortData>> {
return this.request<ColorSortData>('/colors/sort', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Accessibility
async simulateColorBlindness(request: ColorBlindnessRequest): Promise<ApiResponse<ColorBlindnessData>> {
return this.request<ColorBlindnessData>('/colors/colorblind', {
method: 'POST',
body: JSON.stringify(request),
});
}
async getTextColor(request: TextColorRequest): Promise<ApiResponse<TextColorData>> {
return this.request<TextColorData>('/colors/textcolor', {
method: 'POST',
body: JSON.stringify(request),
});
}
// Named Colors
async getNamedColors(): Promise<ApiResponse<NamedColorsData>> {
return this.request<NamedColorsData>('/colors/names', {
method: 'GET',
});
}
async searchNamedColors(request: NamedColorSearchRequest): Promise<ApiResponse<NamedColorSearchData>> {
return this.request<NamedColorSearchData>('/colors/names/search', {
method: 'POST',
body: JSON.stringify(request),
});
}
// System
async getHealth(): Promise<ApiResponse<HealthData>> {
return this.request<HealthData>('/health', {
method: 'GET',
});
}
async getCapabilities(): Promise<ApiResponse<CapabilitiesData>> {
return this.request<CapabilitiesData>('/capabilities', {
method: 'GET',
});
}
// Palette Generation
async generatePalette(request: PaletteGenerateRequest): Promise<ApiResponse<PaletteGenerateData>> {
return this.request<PaletteGenerateData>('/palettes/generate', {
method: 'POST',
body: JSON.stringify(request),
});
}
}
// Export singleton instance
// Now using WASM client for zero-latency, offline-first color operations
export const pastelAPI = pastelWASM;

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'use client';
import { useQuery, useMutation, UseQueryOptions } from '@tanstack/react-query';
import { pastelAPI } from './client';
import type {
ColorInfoRequest,
ColorInfoData,
ConvertFormatRequest,
ConvertFormatData,
ColorManipulationRequest,
ColorManipulationData,
ColorMixRequest,
ColorMixData,
RandomColorsRequest,
RandomColorsData,
DistinctColorsRequest,
DistinctColorsData,
GradientRequest,
GradientData,
ColorBlindnessRequest,
PaletteGenerateRequest,
PaletteGenerateData,
ColorBlindnessData,
TextColorRequest,
TextColorData,
NamedColorsData,
HealthData,
} from './types';
// Color Information
export const useColorInfo = (
request: ColorInfoRequest,
options?: Omit<UseQueryOptions<ColorInfoData>, 'queryKey' | 'queryFn'>
) => {
return useQuery({
queryKey: ['colorInfo', request.colors],
queryFn: async () => {
const response = await pastelAPI.getColorInfo(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
enabled: request.colors.length > 0 && request.colors.every((c) => c.length > 0),
...options,
});
};
// Format Conversion
export const useConvertFormat = () => {
return useMutation({
mutationFn: async (request: ConvertFormatRequest) => {
const response = await pastelAPI.convertFormat(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
// Color Manipulation
export const useLighten = () => {
return useMutation({
mutationFn: async (request: ColorManipulationRequest) => {
const response = await pastelAPI.lighten(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useDarken = () => {
return useMutation({
mutationFn: async (request: ColorManipulationRequest) => {
const response = await pastelAPI.darken(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useSaturate = () => {
return useMutation({
mutationFn: async (request: ColorManipulationRequest) => {
const response = await pastelAPI.saturate(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useDesaturate = () => {
return useMutation({
mutationFn: async (request: ColorManipulationRequest) => {
const response = await pastelAPI.desaturate(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useRotate = () => {
return useMutation({
mutationFn: async (request: ColorManipulationRequest) => {
const response = await pastelAPI.rotate(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useComplement = () => {
return useMutation({
mutationFn: async (colors: string[]) => {
const response = await pastelAPI.complement(colors);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useMixColors = () => {
return useMutation({
mutationFn: async (request: ColorMixRequest) => {
const response = await pastelAPI.mix(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
// Color Generation
export const useGenerateRandom = () => {
return useMutation({
mutationFn: async (request: RandomColorsRequest) => {
const response = await pastelAPI.generateRandom(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useGenerateDistinct = () => {
return useMutation({
mutationFn: async (request: DistinctColorsRequest) => {
const response = await pastelAPI.generateDistinct(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
export const useGenerateGradient = () => {
return useMutation({
mutationFn: async (request: GradientRequest) => {
const response = await pastelAPI.generateGradient(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
// Color Blindness Simulation
export const useSimulateColorBlindness = () => {
return useMutation({
mutationFn: async (request: ColorBlindnessRequest) => {
const response = await pastelAPI.simulateColorBlindness(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
// Text Color Optimizer
export const useTextColor = () => {
return useMutation({
mutationFn: async (request: TextColorRequest) => {
const response = await pastelAPI.getTextColor(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};
// Named Colors
export const useNamedColors = () => {
return useQuery({
queryKey: ['namedColors'],
queryFn: async () => {
const response = await pastelAPI.getNamedColors();
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
staleTime: Infinity, // Named colors never change
});
};
// Health Check
export const useHealth = () => {
return useQuery({
queryKey: ['health'],
queryFn: async () => {
const response = await pastelAPI.getHealth();
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
refetchInterval: 60000, // Check every minute
});
};
// Palette Generation
export const useGeneratePalette = () => {
return useMutation({
mutationFn: async (request: PaletteGenerateRequest) => {
const response = await pastelAPI.generatePalette(request);
if (!response.success) {
throw new Error(response.error.message);
}
return response.data;
},
});
};

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// API Response Types
export interface SuccessResponse<T> {
success: true;
data: T;
}
export interface ErrorResponse {
success: false;
error: {
code: string;
message: string;
details?: string;
};
}
export type ApiResponse<T> = SuccessResponse<T> | ErrorResponse;
// Color Component Types
export interface RGBColor {
r: number;
g: number;
b: number;
a?: number;
}
export interface HSLColor {
h: number;
s: number;
l: number;
a?: number;
}
export interface HSVColor {
h: number;
s: number;
v: number;
}
export interface LabColor {
l: number;
a: number;
b: number;
}
export interface OkLabColor {
l: number;
a: number;
b: number;
}
export interface LCHColor {
l: number;
c: number;
h: number;
}
export interface OkLCHColor {
l: number;
c: number;
h: number;
}
export interface CMYKColor {
c: number;
m: number;
y: number;
k: number;
}
// Color Information
export interface ColorInfo {
input: string;
hex: string;
rgb: RGBColor;
hsl: HSLColor;
hsv: HSVColor;
lab: LabColor;
oklab: OkLabColor;
lch: LCHColor;
oklch: OkLCHColor;
cmyk: CMYKColor;
gray?: number;
brightness: number;
luminance: number;
is_light: boolean;
name?: string;
distance_to_named?: number;
}
// Request/Response Types for Each Endpoint
export interface ColorInfoRequest {
colors: string[];
}
export interface ColorInfoData {
colors: ColorInfo[];
}
export interface ConvertFormatRequest {
colors: string[];
format: 'hex' | 'rgb' | 'hsl' | 'hsv' | 'lab' | 'oklab' | 'lch' | 'oklch' | 'cmyk' | 'gray';
}
export interface ConvertFormatData {
conversions: Array<{
input: string;
output: string;
}>;
}
export interface ColorManipulationRequest {
colors: string[];
amount: number;
}
export interface ColorManipulationData {
operation?: string;
amount?: number;
colors: Array<{
input: string;
output: string;
}>;
}
export interface ColorMixRequest {
colors: string[];
fraction: number;
colorspace?: 'rgb' | 'hsl' | 'hsv' | 'lab' | 'oklab' | 'lch' | 'oklch';
}
export interface ColorMixData {
results: Array<{
color1: string;
color2: string;
mixed: string;
}>;
}
export interface RandomColorsRequest {
count: number;
strategy?: 'vivid' | 'rgb' | 'gray' | 'lch';
}
export interface RandomColorsData {
colors: string[];
}
export interface DistinctColorsRequest {
count: number;
metric?: 'cie76' | 'ciede2000';
fixed_colors?: string[];
}
export interface DistinctColorsData {
colors: string[];
stats: {
min_distance: number;
avg_distance: number;
generation_time_ms: number;
};
}
export interface GradientRequest {
stops: string[];
count: number;
colorspace?: 'rgb' | 'hsl' | 'hsv' | 'lab' | 'oklab' | 'lch' | 'oklch';
}
export interface GradientData {
stops: string[];
count: number;
colorspace: string;
gradient: string[];
}
export interface ColorDistanceRequest {
color1: string;
color2: string;
metric: 'cie76' | 'ciede2000';
}
export interface ColorDistanceData {
color1: string;
color2: string;
distance: number;
metric: string;
}
export interface ColorSortRequest {
colors: string[];
order: 'hue' | 'brightness' | 'luminance' | 'chroma';
}
export interface ColorSortData {
sorted: string[];
}
export interface ColorBlindnessRequest {
colors: string[];
type: 'protanopia' | 'deuteranopia' | 'tritanopia';
}
export interface ColorBlindnessData {
type: string;
colors: Array<{
input: string;
output: string;
difference_percentage: number;
}>;
}
export interface TextColorRequest {
backgrounds: string[];
}
export interface TextColorData {
colors: Array<{
background: string;
textcolor: string;
contrast_ratio: number;
wcag_aa: boolean;
wcag_aaa: boolean;
}>;
}
export interface NamedColor {
name: string;
hex: string;
}
export interface NamedColorsData {
colors: NamedColor[];
}
export interface NamedColorSearchRequest {
query: string;
}
export interface NamedColorSearchData {
results: NamedColor[];
}
export interface HealthData {
status: string;
version: string;
}
export interface CapabilitiesData {
endpoints: string[];
formats: string[];
color_spaces: string[];
distance_metrics: string[];
colorblindness_types: string[];
}
export interface PaletteGenerateRequest {
base: string;
scheme: 'monochromatic' | 'analogous' | 'complementary' | 'split-complementary' | 'triadic' | 'tetradic';
}
export interface PaletteGenerateData {
base: string;
scheme: string;
palette: {
primary: string;
secondary: string[];
};
}

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import {
init,
parse_color,
lighten_color,
darken_color,
saturate_color,
desaturate_color,
rotate_hue,
complement_color,
mix_colors,
get_text_color,
calculate_contrast,
simulate_protanopia,
simulate_deuteranopia,
simulate_tritanopia,
color_distance,
generate_random_colors,
generate_gradient,
generate_palette,
get_all_named_colors,
search_named_colors,
version,
} from '@valknarthing/pastel-wasm';
import type {
ApiResponse,
ColorInfoRequest,
ColorInfoData,
ConvertFormatRequest,
ConvertFormatData,
ColorManipulationRequest,
ColorManipulationData,
ColorMixRequest,
ColorMixData,
RandomColorsRequest,
RandomColorsData,
DistinctColorsRequest,
DistinctColorsData,
GradientRequest,
GradientData,
ColorDistanceRequest,
ColorDistanceData,
ColorSortRequest,
ColorSortData,
ColorBlindnessRequest,
ColorBlindnessData,
TextColorRequest,
TextColorData,
NamedColorsData,
NamedColorSearchRequest,
NamedColorSearchData,
HealthData,
CapabilitiesData,
PaletteGenerateRequest,
PaletteGenerateData,
} from './types';
// Initialize WASM module
let wasmInitialized = false;
async function ensureWasmInit() {
if (!wasmInitialized) {
init(); // Initialize panic hook
wasmInitialized = true;
}
}
/**
* WASM-based Pastel client
* Provides the same interface as PastelAPIClient but uses WebAssembly
* Zero network latency, works offline!
*/
export class PastelWASMClient {
constructor() {
// Initialize WASM eagerly
ensureWasmInit().catch(console.error);
}
private async request<T>(fn: () => T): Promise<ApiResponse<T>> {
try {
await ensureWasmInit();
const data = fn();
return {
success: true,
data,
};
} catch (error) {
return {
success: false,
error: {
code: 'WASM_ERROR',
message: error instanceof Error ? error.message : 'Unknown error',
},
};
}
}
// Color Information
async getColorInfo(request: ColorInfoRequest): Promise<ApiResponse<ColorInfoData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => {
const info = parse_color(colorStr);
return {
input: info.input,
hex: info.hex,
rgb: {
r: info.rgb[0],
g: info.rgb[1],
b: info.rgb[2],
},
hsl: {
h: info.hsl[0],
s: info.hsl[1],
l: info.hsl[2],
},
hsv: {
h: info.hsv[0],
s: info.hsv[1],
v: info.hsv[2],
},
lab: {
l: info.lab[0],
a: info.lab[1],
b: info.lab[2],
},
oklab: {
l: info.lab[0] / 100.0,
a: info.lab[1] / 100.0,
b: info.lab[2] / 100.0,
},
lch: {
l: info.lch[0],
c: info.lch[1],
h: info.lch[2],
},
oklch: {
l: info.lch[0] / 100.0,
c: info.lch[1] / 100.0,
h: info.lch[2],
},
cmyk: {
c: 0,
m: 0,
y: 0,
k: 0,
},
brightness: info.brightness,
luminance: info.luminance,
is_light: info.is_light,
};
});
return { colors };
});
}
// Format Conversion
async convertFormat(request: ConvertFormatRequest): Promise<ApiResponse<ConvertFormatData>> {
return this.request(() => {
const conversions = request.colors.map((colorStr) => {
const parsed = parse_color(colorStr);
let output: string;
switch (request.format) {
case 'hex':
output = parsed.hex;
break;
case 'rgb':
output = `rgb(${parsed.rgb[0]}, ${parsed.rgb[1]}, ${parsed.rgb[2]})`;
break;
case 'hsl':
output = `hsl(${parsed.hsl[0].toFixed(1)}, ${(parsed.hsl[1] * 100).toFixed(1)}%, ${(parsed.hsl[2] * 100).toFixed(1)}%)`;
break;
case 'hsv':
output = `hsv(${parsed.hsv[0].toFixed(1)}, ${(parsed.hsv[1] * 100).toFixed(1)}%, ${(parsed.hsv[2] * 100).toFixed(1)}%)`;
break;
case 'lab':
output = `lab(${parsed.lab[0].toFixed(2)}, ${parsed.lab[1].toFixed(2)}, ${parsed.lab[2].toFixed(2)})`;
break;
case 'lch':
output = `lch(${parsed.lch[0].toFixed(2)}, ${parsed.lch[1].toFixed(2)}, ${parsed.lch[2].toFixed(2)})`;
break;
default:
output = parsed.hex;
}
return {
input: colorStr,
output,
};
});
return { conversions };
});
}
// Color Manipulation
async lighten(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => ({
input: colorStr,
output: lighten_color(colorStr, request.amount),
}));
return { operation: 'lighten', amount: request.amount, colors };
});
}
async darken(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => ({
input: colorStr,
output: darken_color(colorStr, request.amount),
}));
return { operation: 'darken', amount: request.amount, colors };
});
}
async saturate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => ({
input: colorStr,
output: saturate_color(colorStr, request.amount),
}));
return { operation: 'saturate', amount: request.amount, colors };
});
}
async desaturate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => ({
input: colorStr,
output: desaturate_color(colorStr, request.amount),
}));
return { operation: 'desaturate', amount: request.amount, colors };
});
}
async rotate(request: ColorManipulationRequest): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => ({
input: colorStr,
output: rotate_hue(colorStr, request.amount),
}));
return { operation: 'rotate', amount: request.amount, colors };
});
}
async complement(colors: string[]): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const results = colors.map((colorStr) => ({
input: colorStr,
output: complement_color(colorStr),
}));
return { operation: 'complement', colors: results };
});
}
async grayscale(colors: string[]): Promise<ApiResponse<ColorManipulationData>> {
return this.request(() => {
const results = colors.map((colorStr) => ({
input: colorStr,
output: desaturate_color(colorStr, 1.0),
}));
return { operation: 'grayscale', colors: results };
});
}
async mix(request: ColorMixRequest): Promise<ApiResponse<ColorMixData>> {
return this.request(() => {
// Mix pairs of colors
const results = [];
for (let i = 0; i < request.colors.length - 1; i += 2) {
const color1 = request.colors[i];
const color2 = request.colors[i + 1];
const mixed = mix_colors(color1, color2, request.fraction);
results.push({ color1, color2, mixed });
}
return { results };
});
}
// Color Generation
async generateRandom(request: RandomColorsRequest): Promise<ApiResponse<RandomColorsData>> {
return this.request(() => {
const vivid = request.strategy === 'vivid' || request.strategy === 'lch';
const colors = generate_random_colors(request.count, vivid);
return { colors };
});
}
async generateDistinct(request: DistinctColorsRequest): Promise<ApiResponse<DistinctColorsData>> {
return this.request(() => {
// Note: WASM version doesn't support distinct colors with simulated annealing yet
// Fall back to vivid random colors
const colors = generate_random_colors(request.count, true);
return {
colors,
stats: {
min_distance: 0,
avg_distance: 0,
generation_time_ms: 0,
},
};
});
}
async generateGradient(request: GradientRequest): Promise<ApiResponse<GradientData>> {
return this.request(() => {
if (request.stops.length < 2) {
throw new Error('At least 2 color stops are required');
}
// For 2 stops, use the WASM gradient function
if (request.stops.length === 2) {
const gradient = generate_gradient(request.stops[0], request.stops[1], request.count);
return {
stops: request.stops,
count: request.count,
colorspace: request.colorspace || 'rgb',
gradient,
};
}
// For multiple stops, interpolate segments
const segments = request.stops.length - 1;
const colorsPerSegment = Math.floor(request.count / segments);
const gradient: string[] = [];
for (let i = 0; i < segments; i++) {
const segmentColors = generate_gradient(
request.stops[i],
request.stops[i + 1],
i === segments - 1 ? request.count - gradient.length : colorsPerSegment
);
gradient.push(...segmentColors.slice(0, -1)); // Avoid duplicates
}
gradient.push(request.stops[request.stops.length - 1]);
return {
stops: request.stops,
count: request.count,
colorspace: request.colorspace || 'rgb',
gradient,
};
});
}
// Color Analysis
async calculateDistance(request: ColorDistanceRequest): Promise<ApiResponse<ColorDistanceData>> {
return this.request(() => {
const useCiede2000 = request.metric === 'ciede2000';
const distance = color_distance(request.color1, request.color2, useCiede2000);
return {
color1: request.color1,
color2: request.color2,
distance,
metric: request.metric,
};
});
}
async sortColors(request: ColorSortRequest): Promise<ApiResponse<ColorSortData>> {
return this.request(() => {
// Note: WASM version doesn't support sorting yet
// Return colors as-is for now
return { sorted: request.colors };
});
}
// Accessibility
async simulateColorBlindness(request: ColorBlindnessRequest): Promise<ApiResponse<ColorBlindnessData>> {
return this.request(() => {
const colors = request.colors.map((colorStr) => {
let output: string;
switch (request.type) {
case 'protanopia':
output = simulate_protanopia(colorStr);
break;
case 'deuteranopia':
output = simulate_deuteranopia(colorStr);
break;
case 'tritanopia':
output = simulate_tritanopia(colorStr);
break;
default:
output = colorStr;
}
const distance = color_distance(colorStr, output, true);
return {
input: colorStr,
output,
difference_percentage: (distance / 100.0) * 100.0,
};
});
return { type: request.type, colors };
});
}
async getTextColor(request: TextColorRequest): Promise<ApiResponse<TextColorData>> {
return this.request(() => {
const colors = request.backgrounds.map((bg) => {
const textColor = get_text_color(bg);
const contrastRatio = calculate_contrast(bg, textColor);
return {
background: bg,
textcolor: textColor,
contrast_ratio: contrastRatio,
wcag_aa: contrastRatio >= 4.5,
wcag_aaa: contrastRatio >= 7.0,
};
});
return { colors };
});
}
// Named Colors
async getNamedColors(): Promise<ApiResponse<NamedColorsData>> {
return this.request(() => {
const colors = get_all_named_colors();
return { colors };
});
}
async searchNamedColors(request: NamedColorSearchRequest): Promise<ApiResponse<NamedColorSearchData>> {
return this.request(() => {
const results = search_named_colors(request.query);
return { results };
});
}
// System
async getHealth(): Promise<ApiResponse<HealthData>> {
return this.request(() => ({
status: 'healthy',
version: version(),
}));
}
async getCapabilities(): Promise<ApiResponse<CapabilitiesData>> {
return this.request(() => ({
endpoints: [
'colors/info',
'colors/convert',
'colors/lighten',
'colors/darken',
'colors/saturate',
'colors/desaturate',
'colors/rotate',
'colors/complement',
'colors/grayscale',
'colors/mix',
'colors/random',
'colors/gradient',
'colors/colorblind',
'colors/textcolor',
'colors/distance',
'colors/names',
],
formats: ['hex', 'rgb', 'hsl', 'hsv', 'lab', 'lch'],
color_spaces: ['rgb', 'hsl', 'hsv', 'lab', 'lch'],
distance_metrics: ['cie76', 'ciede2000'],
colorblindness_types: ['protanopia', 'deuteranopia', 'tritanopia'],
}));
}
// Palette Generation
async generatePalette(request: PaletteGenerateRequest): Promise<ApiResponse<PaletteGenerateData>> {
return this.request(() => {
const colors = generate_palette(request.base, request.scheme);
return {
base: request.base,
scheme: request.scheme,
palette: {
primary: colors[0],
secondary: colors.slice(1),
},
};
});
}
}
// Export singleton instance
export const pastelWASM = new PastelWASMClient();