#!/usr/bin/env node

const fs = require('fs');
const jsyaml = require('js-yaml');
const SwaggerParser = require('swagger-parser');

(async () => {
    // Iterate through the changed files, passed in the arguments.
    // The two first arguments are the call to the Node interpreter and this
    // script, hence the starting point at 2.
    for (const file of process.argv.slice(2)) {
        try {
            if (
                jsyaml.safeLoad(await fs.promises.readFile(file, 'utf8'), {
                    filename: file,
                }).openapi !== undefined
            ) {
                await SwaggerParser.validate(file);
            }
        } catch (error) {
            if (error instanceof jsyaml.YAMLException) {
                console.error(error.message);
            } else if (error instanceof SyntaxError) {
                console.error(`${file}: ${error.message}`);
            } else {
                throw error;
            }
            process.exitCode = 1;
        }
    }
})().catch((error) => {
    console.error(error);
    process.exit(1);
});