private async parseUrlToUri()

in src/devtoolsPanel.ts [376:423]
35 lines of code
6 McCabe index (conditional complexity)

    private async parseUrlToUri(url: string): Promise<vscode.Uri | undefined> {
        // Convert the devtools url into a local one
        let sourcePath = url;
        let appendedEntryPoint = false;
        if (this.config.defaultEntrypoint) {
            // If sourcePath is just a baseUrl, append to default entrypoint
            try {
                const oldSourePath = sourcePath;
                sourcePath = addEntrypointIfNeeded(sourcePath, this.config.defaultEntrypoint);
                appendedEntryPoint = oldSourePath !== sourcePath;
            } catch (e) {
                await ErrorReporter.showInformationDialog({
                    errorCode: ErrorCodes.Error,
                    title: 'Unable to open file in editor.',
                    message: `'${sourcePath}' is not a valid url.`,
                });
                return;
            }
        }
        if (this.config.sourceMaps) {
            sourcePath = applyPathMapping(sourcePath, this.config.sourceMapPathOverrides);
        }

        // Convert the local url to a workspace path
        const transformer = new debugCore.UrlPathTransformer();
        void transformer.launch({ pathMapping: this.config.pathMapping });

        // origin in this case is trivial since we expect fixSource to take it out
        // marking it explicitly as invalid to clarify intention.
        const localSource = { path: sourcePath, origin: 'invalid-origin://' };
        await transformer.fixSource(localSource);

        // per documentation if the file was correctly resolved origin will be cleared.
        // https://github.com/Microsoft/vscode-chrome-debug-core/blob/main/src/transformers/urlPathTransformer.ts
        if (!localSource.origin) {
            // Convert the workspace path into a VS Code url
            const uri = vscode.Uri.file(localSource.path);
            return uri;
        }
        // If failed to resolve origin, it's possible entrypoint needs to be updated.
        // Space at beginning to allow insertion in message below
        const entryPointErrorMessage = ` Consider updating the 'Default Entrypoint' setting to map to your root html page. The current setting is '${this.config.defaultEntrypoint}'.`;
        await ErrorReporter.showInformationDialog({
            errorCode: ErrorCodes.Error,
            title: 'Unable to open file in editor.',
            message: `${sourcePath} does not map to a local file.${appendedEntryPoint ? entryPointErrorMessage : ''}`,
        });
    }