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// Copyright (c) 2017-2022 Cloudflare, Inc.
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// Licensed under the Apache 2.0 license found in the LICENSE file or at:
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//     https://opensource.org/licenses/Apache-2.0
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import {
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  validateArray,
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  validateBoolean,
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  validateObject,
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  validateOneOf,
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  validateInt32,
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} from 'node-internal:validators';
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import { ERR_METHOD_NOT_IMPLEMENTED } from 'node-internal:internal_errors';
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import type { WASIOptions } from 'node:wasi';
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interface FinalizeBindingsOptions {
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  memory?: WebAssembly.Memory | undefined;
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}
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// TODO(later): This is one we actually might want to implement at some point.
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export class WASI {
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  constructor(options: WASIOptions = { version: 'unstable' }) {
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    validateObject(options, 'options');
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    validateOneOf(options.version, 'options.version', ['unstable', 'preview1']);
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    if (options.args !== undefined) {
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      validateArray(options.args, 'options.args');
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    }
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    if (options.env !== undefined) {
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      validateObject(options.env, 'options.env');
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    }
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    if (options.preopens !== undefined) {
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      validateObject(options.preopens, 'options.preopens');
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    }
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    const { stdin = 0, stdout = 1, stderr = 2 } = options;
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    validateInt32(stdin, 'options.stdin', 0);
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    validateInt32(stdout, 'options.stdout', 0);
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    validateInt32(stderr, 'options.stderr', 0);
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    if (options.returnOnExit !== undefined) {
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      validateBoolean(options.returnOnExit, 'options.returnOnExit');
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    }
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    throw new ERR_METHOD_NOT_IMPLEMENTED('WASI');
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  }
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  finalizeBindings(_1: object, _2: FinalizeBindingsOptions = {}): void {
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    throw new ERR_METHOD_NOT_IMPLEMENTED('WASI.finalizeBindings');
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  }
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  start(_: object): number {
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    throw new ERR_METHOD_NOT_IMPLEMENTED('WASI.start');
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  }
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  initialize(_: object): void {
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    throw new ERR_METHOD_NOT_IMPLEMENTED('WASI.initialize');
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  }
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  getImportObject(): object {
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    return {};
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  }
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}
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export default { WASI };