openKaravanWebView()

in karavan-vscode/src/designerView.ts [106:173]
61 lines of code
8 McCabe index (conditional complexity)

    openKaravanWebView(filename: string, relativePath: string, fullPath: string, yaml?: string, tab?: string) {
        if (!KARAVAN_PANELS.has(relativePath)) {
            // Karavan webview
            const panel = window.createWebviewPanel(
                "karavan",
                filename,
                ViewColumn.One,
                {
                    enableScripts: true,
                    retainContextWhenHidden: true,
                    localResourceRoots: [
                        Uri.joinPath(this.context.extensionUri, "dist"),
                    ],
                }
            );
            panel.webview.html = getWebviewContent(this.context, panel.webview);
            panel.iconPath = Uri.joinPath(
                this.context.extensionUri,
                "icons/karavan.svg"
            );

            // Handle messages from the webview
            panel.webview.onDidReceiveMessage(
                message => {
                    switch (message.command) {
                        case 'save':
                            utils.save(message.relativePath, message.code);
                            break;
                        case 'saveCode':
                            utils.saveCode(message.name, message.yamlFullPath, message.yamFileName, message.code);
                            break;
                        case 'savePropertyPlaceholder':
                            utils.savePropertyPlaceholder(message.key, message.value);
                            break;
                        case 'getData':
                            this.sendData(panel, filename, relativePath, fullPath, message.reread === true, yaml, tab);
                            break;
                        case 'internalConsumerClick':
                            this.internalConsumerClick(panel, fullPath, message.uri, message.name, message.routeId);
                            break;
                    }
                },
                undefined,
                this.context.subscriptions
            );
            // Handle close event
            panel.onDidDispose(() => {
                KARAVAN_PANELS.delete(relativePath);
                commands.executeCommand("setContext", KARAVAN_LOADED, false);
            }, null, this.context.subscriptions);

            // Handle reopen
            panel.onDidChangeViewState((e: WebviewPanelOnDidChangeViewStateEvent) => {
                if (e.webviewPanel.active) {
                    e.webviewPanel.webview.postMessage({ command: 'activate', tab: tab });
                } else {
                    e.webviewPanel.webview.postMessage({ command: 'deactivate' });
                }
            });

            KARAVAN_PANELS.set(relativePath, panel);
            commands.executeCommand("setContext", KARAVAN_LOADED, true);
        } else {
            const panel = KARAVAN_PANELS.get(relativePath);
            panel?.reveal(undefined, true);
            panel?.webview.postMessage({ command: 'activate', tab: tab });
        }
    }