counterfact/dist/typescript-generator/responses-type-coder.js

Generate a TypeScript-based mock server from an OpenAPI spec in seconds — with stateful routes, hot reload, and REPL support.

import { printObjectWithoutQuotes } from "./printers.js";
import { ResponseTypeCoder } from "./response-type-coder.js";
import { TypeCoder } from "./type-coder.js";
export class ResponsesTypeCoder extends TypeCoder {
    openApi2MediaTypes;
    constructor(requirement, version = "", openApi2MediaTypes = []) {
        super(requirement, version);
        this.openApi2MediaTypes = openApi2MediaTypes;
    }
    typeForDefaultStatusCode(listedStatusCodes) {
        const definedStatusCodes = listedStatusCodes.filter((key) => key !== "default");
        if (definedStatusCodes.length === 0) {
            return "[statusCode in HttpStatusCode]";
        }
        return `[statusCode in Exclude<HttpStatusCode, ${definedStatusCodes.join(" | ")}>]`;
    }
    normalizeStatusCode(statusCode) {
        if (statusCode === "default") {
            return this.typeForDefaultStatusCode(Object.keys(this.requirement.data));
        }
        return statusCode;
    }
    buildResponseObjectType(script) {
        const entries = this.requirement.map((response, responseCode) => [
            this.normalizeStatusCode(responseCode),
            new ResponseTypeCoder(response, this.version, this.openApi2MediaTypes).write(script),
        ]);
        const explicitEntries = entries.filter(([key]) => !key.startsWith("["));
        const mappedEntries = entries.filter(([key]) => key.startsWith("["));
        if (explicitEntries.length > 0 && mappedEntries.length > 0) {
            return `${printObjectWithoutQuotes(explicitEntries)} & ${printObjectWithoutQuotes(mappedEntries)}`;
        }
        return printObjectWithoutQuotes(entries);
    }
    writeCode(script) {
        script.importSharedType("ResponseBuilderFactory");
        const text = `ResponseBuilderFactory<${this.buildResponseObjectType(script)}>`;
        if (text.includes("HttpStatusCode")) {
            script.importSharedType("HttpStatusCode");
        }
        return text;
    }
}