const { RuntimeModule, RuntimeGlobals } = require("@rspack/core");

class CustomRuntimeModule extends RuntimeModule {
  constructor(chunk) {
    // set name and stage of this runtime module
    super("module-name", RuntimeModule.STAGE_NORMAL);
  }

  shouldIsolate() {
    // if false, will not be wrapped by IIFE
    return true;
  }

  generate(compilation) {
    return `
      // content of this runtime module
      __webpack_require__.xxx = xxx;
    `;
  }
}

module.exports = {
  // ...
  plugins: [
    compiler => {
      compiler.hooks.thisCompilation.tap("CustomRuntimePlugin", (compilation) => {
          compilation.hooks.runtimeRequirementInTree.tap("CustomRuntimePlugin", (chunk, set) => {
            // add dependent runtime globals
            set.add(RuntimeGlobals.publicPath);
            // add custom runtime module
            const m = new CustomRuntimeModule();
            // set fullHash or dependentHash to tell rspack this module is not cacheable
            m.fullHash = true;
            compilation.addRuntimeModule(chunk, m);
          })
        }
      );
    }
  ],
};