private async getDeploymentJson()

in src/iotEdgeExplorer.ts [182:229]
41 lines of code
10 McCabe index (conditional complexity)

    private async getDeploymentJson(filePath: string): Promise<string> {
        if (!filePath) {
            const filePathUri: vscode.Uri[] = await vscode.window.showOpenDialog({
                openLabel: "Select Edge Deployment Manifest",
                filters: {
                    JSON: ["json"],
                },
                defaultUri: Utility.getDefaultPath(),
            });
            if (!filePathUri) {
                return "";
            }
            filePath = filePathUri[0].fsPath;
        }

        if (path.basename(filePath).endsWith(".template.json")) {
            vscode.window.showWarningMessage("Please select deployment manifest file under 'config' folder for deployment.");
            return "";
        }

        let content = stripJsonComments(fs.readFileSync(filePath, "utf8"));
        try {
            const contentJson = JSON.parse(content);
            // Backward compatibility for old schema using 'moduleContent'
            if (!contentJson.modulesContent && contentJson.moduleContent) {
                contentJson.modulesContent = contentJson.moduleContent;
                delete contentJson.moduleContent;
            }

            try {
                const isValid = await this.isValidDeploymentJsonSchema(contentJson)
                    && this.isValidCreateOptions(contentJson.modulesContent.$edgeAgent["properties.desired"]);

                if (!isValid) {
                    return "";
                }
            } catch (error) {
                TelemetryClient.sendEvent(Constants.IoTHubAIValidateJsonSchemaEvent, { [Constants.errorProperties.Message]: error.message });
            }

            content = JSON.stringify(contentJson, null, 2);
        } catch (error) {
            vscode.window.showErrorMessage("Failed to parse deployment manifest: " + error.toString());
            return "";
        }

        return content;
    }