Merge pull request 'feat: spread logic from main.ts' (#21) from feat/spread-logic into main

Reviewed-on: #21
Reviewed-by: blas <me@blassanto.me>
This commit was merged in pull request #21.
This commit is contained in:
2026-03-24 10:41:50 +00:00
16 changed files with 691 additions and 651 deletions

660
main.ts
View File

@@ -1,55 +1,25 @@
#!/usr/bin/env node
import { execSync } from 'child_process';
import fs from 'fs-extra';
import path from 'path';
import yaml from 'js-yaml';
import mustache from 'mustache';
import { program } from 'commander';
import { log, logSuccess, logInfo, logWarning, logError, colors } from './src/utils/logger';
import { checkOpenApiGenerator, installOpenApiGenerator } from './src/utils/openapi-generator';
import { createDirectoryStructure, cleanup } from './src/utils/filesystem';
import { analyzeSwagger } from './src/swagger/analyzer';
import { generateCode, organizeFiles } from './src/generators/dto.generator';
import { generateCleanArchitecture } from './src/generators/clean-arch.generator';
import { generateReport } from './src/generators/report.generator';
import type { CliOptions } from './src/types';
// Desactivar escape HTML para que los literales < y > generen tipos genéricos válidos de TS.
(mustache as { escape: (text: string) => string }).escape = function (text: string): string {
return text;
};
// Colores para console (sin dependencias externas)
const colors = {
reset: '\x1b[0m',
bright: '\x1b[1m',
green: '\x1b[32m',
blue: '\x1b[34m',
yellow: '\x1b[33m',
red: '\x1b[31m',
cyan: '\x1b[36m'
};
// ── CLI CONFIGURATION ────────────────────────────────────────────────────────
type Color = keyof typeof colors;
function log(message: string, color: Color = 'reset'): void {
console.log(`${colors[color]}${message}${colors.reset}`);
}
function logSuccess(message: string): void {
log(`${message}`, 'green');
}
function logInfo(message: string): void {
log(` ${message}`, 'blue');
}
function logWarning(message: string): void {
log(`⚠️ ${message}`, 'yellow');
}
function logError(message: string): void {
log(`${message}`, 'red');
}
function logStep(message: string): void {
log(`\n🚀 ${message}`, 'cyan');
}
// Configuración del CLI
program
.name('generate-clean-arch')
.description('Generador de código Angular con Clean Architecture desde OpenAPI/Swagger')
@@ -61,609 +31,16 @@ program
.option('--dry-run', 'Simular sin generar archivos')
.parse(process.argv);
export interface CliOptions {
input: string;
output: string;
templates: string;
skipInstall?: boolean;
dryRun?: boolean;
}
const options = program.opts<CliOptions>();
const options = program.opts();
// ── MAIN ORCHESTRATOR ────────────────────────────────────────────────────────
// Validar que existe openapi-generator-cli
function checkOpenApiGenerator(): boolean {
try {
execSync('openapi-generator-cli version', { stdio: 'ignore' });
return true;
} catch (_error) {
return false;
}
}
// Instalar openapi-generator-cli
function installOpenApiGenerator(): void {
logStep('Instalando @openapitools/openapi-generator-cli...');
try {
execSync('npm install -g @openapitools/openapi-generator-cli', { stdio: 'inherit' });
logSuccess('OpenAPI Generator CLI instalado correctamente');
} catch (_error) {
logError('Error al instalar OpenAPI Generator CLI');
process.exit(1);
}
}
// Crear estructura de directorios
function createDirectoryStructure(baseDir: string): void {
const dirs = [
path.join(baseDir, 'data/dtos'),
path.join(baseDir, 'data/repositories'),
path.join(baseDir, 'data/mappers'),
path.join(baseDir, 'domain/repositories'),
path.join(baseDir, 'domain/use-cases'),
path.join(baseDir, 'di/repositories'),
path.join(baseDir, 'di/use-cases'),
path.join(baseDir, 'entities/models')
];
dirs.forEach((dir) => {
fs.ensureDirSync(dir);
});
logSuccess('Estructura de directorios creada');
}
interface SwaggerAnalysis {
tags: unknown[];
paths: Record<string, unknown>;
swagger: unknown;
}
// Analizar el swagger para extraer tags y dominios
function analyzeSwagger(swaggerFile: string): SwaggerAnalysis {
logStep('Analizando archivo OpenAPI...');
try {
const fileContent = fs.readFileSync(swaggerFile, 'utf8');
const swagger = yaml.load(fileContent) as Record<string, unknown>;
const tags = Array.isArray(swagger.tags) ? swagger.tags : [];
const paths = (swagger.paths as Record<string, unknown>) || {};
logInfo(`Encontrados ${tags.length} tags en el API`);
logInfo(`Encontrados ${Object.keys(paths).length} endpoints`);
tags.forEach((tag: unknown) => {
const t = tag as { name: string; description?: string };
logInfo(` - ${t.name}: ${t.description || 'Sin descripción'}`);
});
return { tags, paths, swagger };
} catch (error: unknown) {
const err = error as Error;
logError(`Error al leer el archivo Swagger: ${err.message}`);
process.exit(1);
}
}
// Generar código con OpenAPI Generator
function generateCode(swaggerFile: string, templatesDir: string): string {
logStep('Generando código desde OpenAPI...');
const tempDir = path.join(process.cwd(), '.temp-generated');
// Limpiar directorio temporal
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
}
try {
const command = `openapi-generator-cli generate \
-i "${swaggerFile}" \
-g typescript-angular \
--global-property models \
-t "${templatesDir}" \
-o "${tempDir}" \
--additional-properties=ngVersion=17.0.0,modelFileSuffix=.dto`;
execSync(command, { stdio: 'inherit' });
logSuccess('Código generado correctamente');
return tempDir;
} catch (_error) {
logError('Error al generar código');
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
}
process.exit(1);
}
}
// Organizar archivos según Clean Architecture (DTOs)
function organizeFiles(tempDir: string, outputDir: string): void {
logStep('Organizando archivos DTO generados...');
const sourceDir = path.join(tempDir, 'model');
const destDir = path.join(outputDir, 'data/dtos');
let filesMoved = 0;
if (fs.existsSync(sourceDir)) {
fs.ensureDirSync(destDir);
const files = fs.readdirSync(sourceDir).filter((file) => file.endsWith('.dto.ts'));
files.forEach((file) => {
const sourcePath = path.join(sourceDir, file);
const destPath = path.join(destDir, file);
fs.copySync(sourcePath, destPath);
filesMoved++;
logInfo(` ${file}${path.relative(process.cwd(), destPath)}`);
});
}
logSuccess(`${filesMoved} DTOs movidos correctamente`);
}
// Utilidad para mapear tipos OpenAPI elementales a TypeScript
function mapSwaggerTypeToTs(type?: string): string {
if (!type) return 'unknown';
const typeMap: Record<string, string> = {
integer: 'number',
string: 'string',
boolean: 'boolean',
number: 'number',
array: 'Array<unknown>',
object: 'unknown'
};
return typeMap[type] || 'unknown';
}
interface GeneratedCount {
models: number;
repositories: number;
mappers: number;
useCases: number;
providers: number;
}
export interface OpenApiSchema {
properties?: Record<
string,
{
type?: string;
description?: string;
$ref?: string;
items?: { $ref?: string };
}
>;
required?: string[];
description?: string;
}
export interface OpenApiOperation {
tags?: string[];
operationId?: string;
summary?: string;
description?: string;
parameters?: Array<{
name: string;
in: string;
required: boolean;
description?: string;
schema?: { type?: string };
}>;
requestBody?: {
description?: string;
content?: Record<
string,
{
schema?: {
$ref?: string;
type?: string;
};
}
>;
};
responses?: Record<
string,
{
content?: Record<
string,
{
schema?: {
$ref?: string;
type?: string;
items?: { $ref?: string };
};
}
>;
}
>;
}
export interface TagOperation {
nickname: string;
summary: string;
notes: string;
httpMethod: string;
path: string;
allParams: unknown[];
hasQueryParams: boolean;
queryParams: unknown[];
hasBodyParam: boolean;
bodyParam: string;
returnType: string | boolean;
returnBaseType: string | boolean;
isListContainer: boolean;
vendorExtensions: Record<string, unknown>;
}
// Generar Clean Architecture con Mustache
function generateCleanArchitecture(
analysis: SwaggerAnalysis,
outputDir: string,
templatesDir: string
): GeneratedCount {
logStep('Generando artefactos de Clean Architecture usando Mustache...');
const generatedCount: GeneratedCount = {
models: 0,
repositories: 0,
mappers: 0,
useCases: 0,
providers: 0
};
const schemas =
(analysis.swagger as { components?: { schemas?: Record<string, unknown> } }).components
?.schemas || {};
// 1. Generar Modelos, Entidades y Mappers a partir de Schemas
Object.keys(schemas).forEach((schemaName) => {
// Sanitizar nombres base para que coincidan con cómo OpenAPI los emite (sin Dto duplicado)
const baseName = schemaName.replace(/Dto$/, '');
// variables para model
const schemaObj = schemas[schemaName] as OpenApiSchema;
const rawProperties = schemaObj.properties || {};
const requiredProps: string[] = schemaObj.required || [];
const varsMap = Object.keys(rawProperties).map((k) => {
let tsType = mapSwaggerTypeToTs(rawProperties[k].type);
if (rawProperties[k].$ref) {
// Simple extración del tipo de la ref
tsType = rawProperties[k].$ref.split('/').pop() || 'unknown';
} else if (rawProperties[k].type === 'array' && rawProperties[k].items?.$ref) {
tsType = `Array<${rawProperties[k].items.$ref.split('/').pop()}>`;
}
return {
name: k,
dataType: tsType,
description: rawProperties[k].description || '',
required: requiredProps.includes(k)
};
});
const modelViewData = {
models: [
{
model: {
classname: baseName,
classFilename: baseName.toLowerCase(),
classVarName: baseName.charAt(0).toLowerCase() + baseName.slice(1),
description: schemaObj.description || '',
vars: varsMap
}
}
],
// Para plantillas que esperan allModels o importaciones (mapper)
allModels: [{ model: { vars: varsMap } }]
};
// Y para mapper.mustache, que además pide apiInfo
const mapperViewData = {
...modelViewData,
apiInfo: {
apis: [
{
operations: {
classname: baseName,
classFilename: baseName.toLowerCase(),
classVarName: baseName.charAt(0).toLowerCase() + baseName.slice(1)
}
}
]
}
};
// Model (Entities)
const modelTemplatePath = path.join(templatesDir, 'model-entity.mustache');
if (fs.existsSync(modelTemplatePath)) {
const template = fs.readFileSync(modelTemplatePath, 'utf8');
const output = mustache.render(template, modelViewData);
const destPath = path.join(
outputDir,
'entities/models',
`${baseName.toLowerCase()}.model.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.models++;
logInfo(` ${baseName.toLowerCase()}.model.ts → ${path.relative(process.cwd(), destPath)}`);
}
// Mapper
const mapperTemplatePath = path.join(templatesDir, 'mapper.mustache');
if (fs.existsSync(mapperTemplatePath)) {
const template = fs.readFileSync(mapperTemplatePath, 'utf8');
const output = mustache.render(template, mapperViewData);
const destPath = path.join(outputDir, 'data/mappers', `${baseName.toLowerCase()}.mapper.ts`);
fs.writeFileSync(destPath, output);
generatedCount.mappers++;
}
});
// 2. Generar Casos de Uso y Repositorios a partir de Paths/Tags
const tagsMap: Record<string, TagOperation[]> = {};
// Agrupar operaciones por Tag
Object.keys(analysis.paths).forEach((pathKey) => {
const pathObj = analysis.paths[pathKey] as Record<string, unknown>;
Object.keys(pathObj).forEach((method) => {
const op = pathObj[method] as OpenApiOperation;
if (op.tags && op.tags.length > 0) {
const tag = op.tags[0]; // Usamos el primer tag
if (!tagsMap[tag]) tagsMap[tag] = [];
// Parsear parámetros
const allParams = (op.parameters || []).map((p) => ({
paramName: p.name,
dataType: mapSwaggerTypeToTs(p.schema?.type || ''),
description: p.description || '',
required: p.required
}));
// Añadir body como parámetro si existe
if (op.requestBody) {
let bodyType = 'unknown';
const content = op.requestBody.content?.['application/json']?.schema;
if (content) {
if (content.$ref) bodyType = content.$ref.split('/').pop() || 'unknown';
else if (content.type) bodyType = mapSwaggerTypeToTs(content.type);
}
allParams.push({
paramName: 'body',
dataType: bodyType,
description: op.requestBody.description || '',
required: true
});
}
// Parsear respuestas
let returnType = 'void';
let returnBaseType = 'void';
let isListContainer = false;
const responseSchema = op.responses?.['200']?.content?.['application/json']?.schema;
if (responseSchema) {
if (responseSchema.$ref) {
returnType = responseSchema.$ref.split('/').pop() || 'unknown';
returnBaseType = returnType;
} else if (responseSchema.type === 'array' && responseSchema.items?.$ref) {
returnBaseType = responseSchema.items.$ref.split('/').pop() || 'unknown';
returnType = `Array<${returnBaseType}>`;
isListContainer = true;
}
}
tagsMap[tag].push({
nickname: op.operationId || `${method}${pathKey.replace(/\//g, '_')}`,
summary: op.summary || '',
notes: op.description || '',
httpMethod: method.toLowerCase(),
path: pathKey,
allParams: allParams.map((p, i: number) => ({
...p,
'-last': i === allParams.length - 1
})),
hasQueryParams: (op.parameters || []).some((p) => p.in === 'query'),
queryParams: (op.parameters || [])
.filter((p) => p.in === 'query')
.map((p, i: number, arr: unknown[]) => ({
paramName: p.name,
'-last': i === arr.length - 1
})),
hasBodyParam: !!op.requestBody,
bodyParam: 'body',
returnType: returnType !== 'void' ? returnType : false,
returnBaseType: returnBaseType !== 'void' ? returnBaseType : false,
isListContainer: isListContainer,
vendorExtensions: {}
});
}
});
});
// Generar por cada Tag
Object.keys(tagsMap).forEach((tag) => {
// Buscar si ese tag cruza con alguna entidad para importarla
const imports: { classname: string; classFilename: string; classVarName: string }[] = [];
Object.keys(schemas).forEach((s) => {
// Import heurístico burdo
if (tagsMap[tag].some((op) => op.returnType === s || op.returnType === `Array<${s}>`)) {
imports.push({
classname: s,
classFilename: s.toLowerCase(),
classVarName: s.charAt(0).toLowerCase() + s.slice(1)
});
}
});
const apiViewData = {
apiInfo: {
apis: [
{
operations: {
classname: tag,
classFilename: tag.toLowerCase(),
constantName: tag.toUpperCase().replace(/[^A-Z0-9]/g, '_'),
operation: tagsMap[tag],
imports: imports
}
}
]
}
};
// Use Case Contract
const ucContractPath = path.join(templatesDir, 'api.use-cases.contract.mustache');
if (fs.existsSync(ucContractPath)) {
const template = fs.readFileSync(ucContractPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'domain/use-cases',
`${tag.toLowerCase()}.use-cases.contract.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.useCases++;
}
// Use Case Impl
const ucImplPath = path.join(templatesDir, 'api.use-cases.impl.mustache');
if (fs.existsSync(ucImplPath)) {
const template = fs.readFileSync(ucImplPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'domain/use-cases',
`${tag.toLowerCase()}.use-cases.impl.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.useCases++;
}
// Repository Contract
const repoContractPath = path.join(templatesDir, 'api.repository.contract.mustache');
if (fs.existsSync(repoContractPath)) {
const template = fs.readFileSync(repoContractPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'domain/repositories',
`${tag.toLowerCase()}.repository.contract.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.repositories++;
}
// Repository Impl
const repoImplPath = path.join(templatesDir, 'api.repository.impl.mustache');
if (fs.existsSync(repoImplPath)) {
const template = fs.readFileSync(repoImplPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'data/repositories',
`${tag.toLowerCase()}.repository.impl.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.repositories++;
}
// Use Case Provider
const ucProviderPath = path.join(templatesDir, 'use-cases.provider.mustache');
if (fs.existsSync(ucProviderPath)) {
const template = fs.readFileSync(ucProviderPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'di/use-cases',
`${tag.toLowerCase()}.use-cases.provider.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.providers++;
}
// Repository Provider
const repoProviderPath = path.join(templatesDir, 'repository.provider.mustache');
if (fs.existsSync(repoProviderPath)) {
const template = fs.readFileSync(repoProviderPath, 'utf8');
const output = mustache.render(template, apiViewData);
const destPath = path.join(
outputDir,
'di/repositories',
`${tag.toLowerCase()}.repository.provider.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.providers++;
}
});
logSuccess(
`${generatedCount.models} Models, ${generatedCount.repositories} Repos, ${generatedCount.useCases} Use Cases, ${generatedCount.mappers} Mappers, ${generatedCount.providers} Providers generados con Mustache`
);
return generatedCount;
}
// Limpiar directorio temporal
function cleanup(tempDir: string): void {
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
logInfo('Archivos temporales eliminados');
}
}
interface GenerationReport {
timestamp: string;
tags: number;
endpoints: number;
outputDirectory: string;
structure: {
dtos: number;
repositories: number;
mappers: number;
useCases: number;
providers: number;
};
}
// Generar reporte
function generateReport(outputDir: string, analysis: SwaggerAnalysis): GenerationReport {
logStep('Generando reporte de generación...');
const report: GenerationReport = {
timestamp: new Date().toISOString(),
tags: analysis.tags.length,
endpoints: Object.keys(analysis.paths).length,
outputDirectory: outputDir,
structure: {
dtos: fs.readdirSync(path.join(outputDir, 'data/dtos')).length,
repositories: fs.readdirSync(path.join(outputDir, 'data/repositories')).length,
mappers: fs.readdirSync(path.join(outputDir, 'data/mappers')).length,
useCases: fs.readdirSync(path.join(outputDir, 'domain/use-cases')).length,
providers:
fs.readdirSync(path.join(outputDir, 'di/repositories')).length +
fs.readdirSync(path.join(outputDir, 'di/use-cases')).length
}
};
const reportPath = path.join(process.cwd(), 'generation-report.json');
fs.writeJsonSync(reportPath, report, { spaces: 2 });
logSuccess(`Reporte guardado en: ${reportPath}`);
return report;
}
// Función principal
async function main(): Promise<void> {
console.log('\n' + '='.repeat(60));
log(' OpenAPI Clean Architecture Generator', 'bright');
log(' Angular + Clean Architecture Code Generator', 'cyan');
console.log('='.repeat(60) + '\n');
// Validar archivo de entrada
if (!fs.existsSync(options.input)) {
logError(`Archivo no encontrado: ${options.input}`);
process.exit(1);
@@ -677,7 +54,6 @@ async function main(): Promise<void> {
logWarning('Modo DRY RUN - No se generarán archivos');
}
// Verificar/Instalar OpenAPI Generator
if (!checkOpenApiGenerator()) {
logWarning('OpenAPI Generator CLI no encontrado');
if (!options.skipInstall) {
@@ -692,7 +68,6 @@ async function main(): Promise<void> {
logSuccess('OpenAPI Generator CLI encontrado');
}
// Analizar Swagger
const analysis = analyzeSwagger(options.input);
if (options.dryRun) {
@@ -700,25 +75,15 @@ async function main(): Promise<void> {
return;
}
// Crear estructura de directorios
createDirectoryStructure(options.output);
// Generar código
const tempDir = generateCode(options.input, options.templates);
// Organizar archivos
organizeFiles(tempDir, options.output);
// Crear componentes Clean Architecture con nuestro script de Mustache
generateCleanArchitecture(analysis, options.output, options.templates);
// Limpiar
cleanup(tempDir);
// Generar reporte
const report = generateReport(options.output, analysis);
// Resumen final
console.log('\n' + '='.repeat(60));
log(' ✨ Generación completada con éxito', 'green');
console.log('='.repeat(60));
@@ -731,7 +96,6 @@ async function main(): Promise<void> {
console.log(`\n📁 Archivos generados en: ${colors.cyan}${options.output}${colors.reset}\n`);
}
// Ejecutar
main().catch((error: unknown) => {
const err = error as Error;
logError(`Error fatal: ${err.message}`);

View File

@@ -11,8 +11,8 @@
"prepublishOnly": "npm run build",
"generate": "node dist/generate.js",
"generate:dev": "ts-node main.ts",
"lint": "eslint 'main.ts' -f unix",
"lint:fix": "eslint 'main.ts' --fix -f unix",
"lint": "eslint 'main.ts' 'src/**/*.ts' -f unix",
"lint:fix": "eslint 'main.ts' 'src/**/*.ts' --fix -f unix",
"format": "prettier --write .",
"setup": "npm install -g @openapitools/openapi-generator-cli"
},
@@ -24,6 +24,13 @@
"code-generator"
],
"author": "Blas",
"contributors": [
{
"name": "Diego Davila Freitas",
"email": "diego.davilafreitas@gmail.com",
"url": "https://www.linkedin.com/in/diegodavilafreitas"
}
],
"license": "MIT",
"dependencies": {
"chalk": "^4.1.2",

View File

@@ -0,0 +1,294 @@
import fs from 'fs-extra';
import path from 'path';
import mustache from 'mustache';
import { logStep, logSuccess, logInfo } from '../utils/logger';
import { mapSwaggerTypeToTs } from '../utils/type-mapper';
import type {
SwaggerAnalysis,
OpenApiSchema,
OpenApiOperation,
TagOperation,
GeneratedCount
} from '../types';
/** Genera todos los artefactos de Clean Architecture (modelos, mappers, repos, use cases, providers) usando Mustache. */
export function generateCleanArchitecture(
analysis: SwaggerAnalysis,
outputDir: string,
templatesDir: string
): GeneratedCount {
logStep('Generando artefactos de Clean Architecture usando Mustache...');
const generatedCount: GeneratedCount = {
models: 0,
repositories: 0,
mappers: 0,
useCases: 0,
providers: 0
};
const schemas =
(analysis.swagger as { components?: { schemas?: Record<string, unknown> } }).components
?.schemas || {};
// 1. Generar Modelos, Entidades y Mappers a partir de Schemas
Object.keys(schemas).forEach((schemaName) => {
const baseName = schemaName.replace(/Dto$/, '');
const schemaObj = schemas[schemaName] as OpenApiSchema;
const rawProperties = schemaObj.properties || {};
const requiredProps: string[] = schemaObj.required || [];
const varsMap = Object.keys(rawProperties).map((k) => {
let tsType = mapSwaggerTypeToTs(rawProperties[k].type);
if (rawProperties[k].$ref) {
tsType = rawProperties[k].$ref.split('/').pop() || 'unknown';
} else if (rawProperties[k].type === 'array' && rawProperties[k].items?.$ref) {
tsType = `Array<${rawProperties[k].items.$ref.split('/').pop()}>`;
}
return {
name: k,
dataType: tsType,
description: rawProperties[k].description || '',
required: requiredProps.includes(k)
};
});
const modelViewData = {
models: [
{
model: {
classname: baseName,
classFilename: baseName.toLowerCase(),
classVarName: baseName.charAt(0).toLowerCase() + baseName.slice(1),
description: schemaObj.description || '',
vars: varsMap
}
}
],
allModels: [{ model: { vars: varsMap } }]
};
const mapperViewData = {
...modelViewData,
apiInfo: {
apis: [
{
operations: {
classname: baseName,
classFilename: baseName.toLowerCase(),
classVarName: baseName.charAt(0).toLowerCase() + baseName.slice(1)
}
}
]
}
};
// Model (Entities)
const modelTemplatePath = path.join(templatesDir, 'model-entity.mustache');
if (fs.existsSync(modelTemplatePath)) {
const template = fs.readFileSync(modelTemplatePath, 'utf8');
const output = mustache.render(template, modelViewData);
const destPath = path.join(
outputDir,
'entities/models',
`${baseName.toLowerCase()}.model.ts`
);
fs.writeFileSync(destPath, output);
generatedCount.models++;
logInfo(` ${baseName.toLowerCase()}.model.ts → ${path.relative(process.cwd(), destPath)}`);
}
// Mapper
const mapperTemplatePath = path.join(templatesDir, 'mapper.mustache');
if (fs.existsSync(mapperTemplatePath)) {
const template = fs.readFileSync(mapperTemplatePath, 'utf8');
const output = mustache.render(template, mapperViewData);
const destPath = path.join(outputDir, 'data/mappers', `${baseName.toLowerCase()}.mapper.ts`);
fs.writeFileSync(destPath, output);
generatedCount.mappers++;
}
});
// 2. Generar Casos de Uso y Repositorios a partir de Paths/Tags
const tagsMap: Record<string, TagOperation[]> = {};
Object.keys(analysis.paths).forEach((pathKey) => {
const pathObj = analysis.paths[pathKey] as Record<string, unknown>;
Object.keys(pathObj).forEach((method) => {
const op = pathObj[method] as OpenApiOperation;
if (op.tags && op.tags.length > 0) {
const tag = op.tags[0];
if (!tagsMap[tag]) tagsMap[tag] = [];
const allParams = (op.parameters || []).map((p) => ({
paramName: p.name,
dataType: mapSwaggerTypeToTs(p.schema?.type || ''),
description: p.description || '',
required: p.required
}));
if (op.requestBody) {
let bodyType = 'unknown';
const content = op.requestBody.content?.['application/json']?.schema;
if (content) {
if (content.$ref) bodyType = content.$ref.split('/').pop() || 'unknown';
else if (content.type) bodyType = mapSwaggerTypeToTs(content.type);
}
allParams.push({
paramName: 'body',
dataType: bodyType,
description: op.requestBody.description || '',
required: true
});
}
let returnType = 'void';
let returnBaseType = 'void';
let isListContainer = false;
const responseSchema = op.responses?.['200']?.content?.['application/json']?.schema;
if (responseSchema) {
if (responseSchema.$ref) {
returnType = responseSchema.$ref.split('/').pop() || 'unknown';
returnBaseType = returnType;
} else if (responseSchema.type === 'array' && responseSchema.items?.$ref) {
returnBaseType = responseSchema.items.$ref.split('/').pop() || 'unknown';
returnType = `Array<${returnBaseType}>`;
isListContainer = true;
}
}
tagsMap[tag].push({
nickname: op.operationId || `${method}${pathKey.replace(/\//g, '_')}`,
summary: op.summary || '',
notes: op.description || '',
httpMethod: method.toLowerCase(),
path: pathKey,
allParams: allParams.map((p, i: number) => ({
...p,
'-last': i === allParams.length - 1
})),
hasQueryParams: (op.parameters || []).some((p) => p.in === 'query'),
queryParams: (op.parameters || [])
.filter((p) => p.in === 'query')
.map((p, i: number, arr: unknown[]) => ({
paramName: p.name,
'-last': i === arr.length - 1
})),
hasBodyParam: !!op.requestBody,
bodyParam: 'body',
returnType: returnType !== 'void' ? returnType : false,
returnBaseType: returnBaseType !== 'void' ? returnBaseType : false,
isListContainer: isListContainer,
vendorExtensions: {}
});
}
});
});
// Generar por cada Tag
Object.keys(tagsMap).forEach((tag) => {
const imports: { classname: string; classFilename: string; classVarName: string }[] = [];
Object.keys(schemas).forEach((s) => {
if (tagsMap[tag].some((op) => op.returnType === s || op.returnType === `Array<${s}>`)) {
imports.push({
classname: s,
classFilename: s.toLowerCase(),
classVarName: s.charAt(0).toLowerCase() + s.slice(1)
});
}
});
const apiViewData = {
apiInfo: {
apis: [
{
operations: {
classname: tag,
classFilename: tag.toLowerCase(),
constantName: tag.toUpperCase().replace(/[^A-Z0-9]/g, '_'),
operation: tagsMap[tag],
imports: imports
}
}
]
}
};
renderTemplate(
templatesDir,
'api.use-cases.contract.mustache',
apiViewData,
path.join(outputDir, 'domain/use-cases', `${tag.toLowerCase()}.use-cases.contract.ts`),
generatedCount,
'useCases'
);
renderTemplate(
templatesDir,
'api.use-cases.impl.mustache',
apiViewData,
path.join(outputDir, 'domain/use-cases', `${tag.toLowerCase()}.use-cases.impl.ts`),
generatedCount,
'useCases'
);
renderTemplate(
templatesDir,
'api.repository.contract.mustache',
apiViewData,
path.join(outputDir, 'domain/repositories', `${tag.toLowerCase()}.repository.contract.ts`),
generatedCount,
'repositories'
);
renderTemplate(
templatesDir,
'api.repository.impl.mustache',
apiViewData,
path.join(outputDir, 'data/repositories', `${tag.toLowerCase()}.repository.impl.ts`),
generatedCount,
'repositories'
);
renderTemplate(
templatesDir,
'use-cases.provider.mustache',
apiViewData,
path.join(outputDir, 'di/use-cases', `${tag.toLowerCase()}.use-cases.provider.ts`),
generatedCount,
'providers'
);
renderTemplate(
templatesDir,
'repository.provider.mustache',
apiViewData,
path.join(outputDir, 'di/repositories', `${tag.toLowerCase()}.repository.provider.ts`),
generatedCount,
'providers'
);
});
logSuccess(
`${generatedCount.models} Models, ${generatedCount.repositories} Repos, ${generatedCount.useCases} Use Cases, ${generatedCount.mappers} Mappers, ${generatedCount.providers} Providers generados con Mustache`
);
return generatedCount;
}
/** Renderiza un template Mustache e incrementa el contador correspondiente. */
function renderTemplate(
templatesDir: string,
templateName: string,
viewData: unknown,
destPath: string,
counter: GeneratedCount,
key: keyof GeneratedCount
): void {
const templatePath = path.join(templatesDir, templateName);
if (fs.existsSync(templatePath)) {
const template = fs.readFileSync(templatePath, 'utf8');
const output = mustache.render(template, viewData);
fs.writeFileSync(destPath, output);
counter[key]++;
}
}

View File

@@ -0,0 +1,62 @@
import { execSync } from 'child_process';
import fs from 'fs-extra';
import path from 'path';
import { logStep, logSuccess, logError, logInfo } from '../utils/logger';
/** Invoca `openapi-generator-cli` para generar DTOs en un directorio temporal. */
export function generateCode(swaggerFile: string, templatesDir: string): string {
logStep('Generando código desde OpenAPI...');
const tempDir = path.join(process.cwd(), '.temp-generated');
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
}
try {
const command = `openapi-generator-cli generate \
-i "${swaggerFile}" \
-g typescript-angular \
--global-property models \
-t "${templatesDir}" \
-o "${tempDir}" \
--additional-properties=ngVersion=17.0.0,modelFileSuffix=.dto`;
execSync(command, { stdio: 'inherit' });
logSuccess('Código generado correctamente');
return tempDir;
} catch (_error) {
logError('Error al generar código');
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
}
process.exit(1);
}
}
/** Copia los DTOs generados desde el directorio temporal al directorio de salida. */
export function organizeFiles(tempDir: string, outputDir: string): void {
logStep('Organizando archivos DTO generados...');
const sourceDir = path.join(tempDir, 'model');
const destDir = path.join(outputDir, 'data/dtos');
let filesMoved = 0;
if (fs.existsSync(sourceDir)) {
fs.ensureDirSync(destDir);
const files = fs.readdirSync(sourceDir).filter((file) => file.endsWith('.dto.ts'));
files.forEach((file) => {
const sourcePath = path.join(sourceDir, file);
const destPath = path.join(destDir, file);
fs.copySync(sourcePath, destPath);
filesMoved++;
logInfo(` ${file}${path.relative(process.cwd(), destPath)}`);
});
}
logSuccess(`${filesMoved} DTOs movidos correctamente`);
}

View File

@@ -0,0 +1,32 @@
import fs from 'fs-extra';
import path from 'path';
import { logStep, logSuccess } from '../utils/logger';
import type { SwaggerAnalysis, GenerationReport } from '../types';
/** Genera y persiste el reporte `generation-report.json` con las estadísticas del proceso. */
export function generateReport(outputDir: string, analysis: SwaggerAnalysis): GenerationReport {
logStep('Generando reporte de generación...');
const report: GenerationReport = {
timestamp: new Date().toISOString(),
tags: analysis.tags.length,
endpoints: Object.keys(analysis.paths).length,
outputDirectory: outputDir,
structure: {
dtos: fs.readdirSync(path.join(outputDir, 'data/dtos')).length,
repositories: fs.readdirSync(path.join(outputDir, 'data/repositories')).length,
mappers: fs.readdirSync(path.join(outputDir, 'data/mappers')).length,
useCases: fs.readdirSync(path.join(outputDir, 'domain/use-cases')).length,
providers:
fs.readdirSync(path.join(outputDir, 'di/repositories')).length +
fs.readdirSync(path.join(outputDir, 'di/use-cases')).length
}
};
const reportPath = path.join(process.cwd(), 'generation-report.json');
fs.writeJsonSync(reportPath, report, { spaces: 2 });
logSuccess(`Reporte guardado en: ${reportPath}`);
return report;
}

31
src/swagger/analyzer.ts Normal file
View File

@@ -0,0 +1,31 @@
import fs from 'fs-extra';
import yaml from 'js-yaml';
import { logStep, logInfo, logError } from '../utils/logger';
import type { SwaggerAnalysis } from '../types';
/** Parsea un archivo OpenAPI/Swagger y extrae tags, paths y el documento completo. */
export function analyzeSwagger(swaggerFile: string): SwaggerAnalysis {
logStep('Analizando archivo OpenAPI...');
try {
const fileContent = fs.readFileSync(swaggerFile, 'utf8');
const swagger = yaml.load(fileContent) as Record<string, unknown>;
const tags = Array.isArray(swagger.tags) ? swagger.tags : [];
const paths = (swagger.paths as Record<string, unknown>) || {};
logInfo(`Encontrados ${tags.length} tags en el API`);
logInfo(`Encontrados ${Object.keys(paths).length} endpoints`);
tags.forEach((tag: unknown) => {
const t = tag as { name: string; description?: string };
logInfo(` - ${t.name}: ${t.description || 'Sin descripción'}`);
});
return { tags, paths, swagger };
} catch (error: unknown) {
const err = error as Error;
logError(`Error al leer el archivo Swagger: ${err.message}`);
process.exit(1);
}
}

11
src/types/cli.types.ts Normal file
View File

@@ -0,0 +1,11 @@
/**
* Opciones recibidas desde la línea de comandos (Commander).
* Desacoplada del framework CLI para permitir su uso desde un backend u otro entrypoint.
*/
export interface CliOptions {
input: string;
output: string;
templates: string;
skipInstall?: boolean;
dryRun?: boolean;
}

View File

@@ -0,0 +1,27 @@
/**
* Contadores acumulativos de artefactos generados durante el proceso.
*/
export interface GeneratedCount {
models: number;
repositories: number;
mappers: number;
useCases: number;
providers: number;
}
/**
* Reporte final de generación que se persiste como `generation-report.json`.
*/
export interface GenerationReport {
timestamp: string;
tags: number;
endpoints: number;
outputDirectory: string;
structure: {
dtos: number;
repositories: number;
mappers: number;
useCases: number;
providers: number;
};
}

8
src/types/index.ts Normal file
View File

@@ -0,0 +1,8 @@
/**
* @module types
* @description Barrel que re-exporta todos los tipos e interfaces compartidos del proyecto.
*/
export * from './cli.types';
export * from './swagger.types';
export * from './openapi.types';
export * from './generation.types';

View File

@@ -0,0 +1,83 @@
/**
* Representación simplificada de un schema de componente OpenAPI.
* Se utiliza para generar modelos (entidades) y mappers.
*/
export interface OpenApiSchema {
properties?: Record<
string,
{
type?: string;
description?: string;
$ref?: string;
items?: { $ref?: string };
}
>;
required?: string[];
description?: string;
}
/**
* Representación de una operación OpenAPI (GET, POST, etc.) dentro de un path.
* Contiene la información necesaria para generar repositorios y casos de uso.
*/
export interface OpenApiOperation {
tags?: string[];
operationId?: string;
summary?: string;
description?: string;
parameters?: Array<{
name: string;
in: string;
required: boolean;
description?: string;
schema?: { type?: string };
}>;
requestBody?: {
description?: string;
content?: Record<
string,
{
schema?: {
$ref?: string;
type?: string;
};
}
>;
};
responses?: Record<
string,
{
content?: Record<
string,
{
schema?: {
$ref?: string;
type?: string;
items?: { $ref?: string };
};
}
>;
}
>;
}
/**
* Operación normalizada y lista para ser consumida por los templates Mustache.
* Cada instancia representa un endpoint agrupado bajo un tag del API.
*/
export interface TagOperation {
nickname: string;
summary: string;
notes: string;
httpMethod: string;
path: string;
allParams: unknown[];
hasQueryParams: boolean;
queryParams: unknown[];
hasBodyParam: boolean;
bodyParam: string;
returnType: string | boolean;
returnBaseType: string | boolean;
isListContainer: boolean;
vendorExtensions: Record<string, unknown>;
}

View File

@@ -0,0 +1,9 @@
/**
* Resultado del análisis de un archivo OpenAPI/Swagger.
* Contiene las estructuras crudas extraídas del spec para su posterior procesamiento.
*/
export interface SwaggerAnalysis {
tags: unknown[];
paths: Record<string, unknown>;
swagger: unknown;
}

31
src/utils/filesystem.ts Normal file
View File

@@ -0,0 +1,31 @@
import fs from 'fs-extra';
import path from 'path';
import { logSuccess, logInfo } from './logger';
/** Crea la estructura de directorios necesaria para Clean Architecture (idempotente). */
export function createDirectoryStructure(baseDir: string): void {
const dirs = [
path.join(baseDir, 'data/dtos'),
path.join(baseDir, 'data/repositories'),
path.join(baseDir, 'data/mappers'),
path.join(baseDir, 'domain/repositories'),
path.join(baseDir, 'domain/use-cases'),
path.join(baseDir, 'di/repositories'),
path.join(baseDir, 'di/use-cases'),
path.join(baseDir, 'entities/models')
];
dirs.forEach((dir) => {
fs.ensureDirSync(dir);
});
logSuccess('Estructura de directorios creada');
}
/** Elimina un directorio temporal y todo su contenido. */
export function cleanup(tempDir: string): void {
if (fs.existsSync(tempDir)) {
fs.removeSync(tempDir);
logInfo('Archivos temporales eliminados');
}
}

43
src/utils/logger.ts Normal file
View File

@@ -0,0 +1,43 @@
const colors = {
reset: '\x1b[0m',
bright: '\x1b[1m',
green: '\x1b[32m',
blue: '\x1b[34m',
yellow: '\x1b[33m',
red: '\x1b[31m',
cyan: '\x1b[36m'
} as const;
type Color = keyof typeof colors;
/** Imprime un mensaje en consola con el color ANSI indicado. */
export function log(message: string, color: Color = 'reset'): void {
console.log(`${colors[color]}${message}${colors.reset}`);
}
/** Imprime un mensaje de éxito (verde). */
export function logSuccess(message: string): void {
log(`${message}`, 'green');
}
/** Imprime un mensaje informativo (azul). */
export function logInfo(message: string): void {
log(` ${message}`, 'blue');
}
/** Imprime un mensaje de advertencia (amarillo). */
export function logWarning(message: string): void {
log(`⚠️ ${message}`, 'yellow');
}
/** Imprime un mensaje de error (rojo). */
export function logError(message: string): void {
log(`${message}`, 'red');
}
/** Imprime un encabezado de paso/etapa (cian). */
export function logStep(message: string): void {
log(`\n🚀 ${message}`, 'cyan');
}
export { colors };

View File

@@ -0,0 +1,24 @@
import { execSync } from 'child_process';
import { logStep, logSuccess, logError } from './logger';
/** Verifica si `openapi-generator-cli` está disponible en el PATH. */
export function checkOpenApiGenerator(): boolean {
try {
execSync('openapi-generator-cli version', { stdio: 'ignore' });
return true;
} catch (_error) {
return false;
}
}
/** Instala `@openapitools/openapi-generator-cli` de forma global vía npm. */
export function installOpenApiGenerator(): void {
logStep('Instalando @openapitools/openapi-generator-cli...');
try {
execSync('npm install -g @openapitools/openapi-generator-cli', { stdio: 'inherit' });
logSuccess('OpenAPI Generator CLI instalado correctamente');
} catch (_error) {
logError('Error al instalar OpenAPI Generator CLI');
process.exit(1);
}
}

14
src/utils/type-mapper.ts Normal file
View File

@@ -0,0 +1,14 @@
/** Traduce un tipo primitivo de OpenAPI/Swagger al equivalente TypeScript. */
export function mapSwaggerTypeToTs(type?: string): string {
if (!type) return 'unknown';
const typeMap: Record<string, string> = {
integer: 'number',
string: 'string',
boolean: 'boolean',
number: 'number',
array: 'Array<unknown>',
object: 'unknown'
};
return typeMap[type] || 'unknown';
}

View File

@@ -12,6 +12,6 @@
"moduleResolution": "node",
"resolveJsonModule": true
},
"include": ["main.ts"],
"include": ["main.ts", "src/**/*.ts"],
"exclude": ["node_modules", "dist"]
}