const fs = require('fs');
const path = require('path');
const yaml = require('yaml');


const definition = {
  openapi: '3.0.0',
  info: {
    title: 'ERP API',
    version: '1.0.0',
    description: 'Phase 1 - PO, GRN, Vendor, Assets, Masters, Users & RBAC',
  },
  servers: [{ url: '/api/v1' }],
  components: {
    securitySchemes: { bearerAuth: { type: 'http', scheme: 'bearer', bearerFormat: 'JWT' } },
    schemas: {},
  },
  security: [{ bearerAuth: [] }],
  tags: [],
  paths: {},
};

const docsDir = path.join(__dirname, '../docs');

if (fs.existsSync(docsDir)) {
  for (const file of fs.readdirSync(docsDir)) {
    if (!/\.ya?ml$/i.test(file)) continue;

    const doc = yaml.parse(fs.readFileSync(path.join(docsDir, file), 'utf8'));
    if (!doc) continue;

    if (doc.tags?.length) {
      definition.tags.push(...doc.tags);
    }

    if (doc.components?.schemas) {
      Object.assign(definition.components.schemas, doc.components.schemas);
    }

    if (doc.paths) {
      Object.assign(definition.paths, doc.paths);
    }
  }
}

module.exports = definition;