function expressionsGraphql()

in src/hooks/useExpressionsProcessor.ts [37:97]
59 lines of code
24 McCabe index (conditional complexity)

  function expressionsGraphql(config: Indexable, idx: number) {
    if (!(config.metrics && config.metrics[0])) {
      return;
    }
    const dashboardStore = useDashboardStore();
    const selectorStore = useSelectorStore();

    if (!selectorStore.currentService && dashboardStore.entity !== "All") {
      return;
    }
    const conditions: Recordable = {};
    const variables: string[] = [];
    const isRelation = ["ServiceRelation", "ServiceInstanceRelation", "EndpointRelation", "ProcessRelation"].includes(
      dashboardStore.entity,
    );
    if (isRelation && !selectorStore.currentDestService) {
      return;
    }
    if (idx === 0) {
      variables.push(`$entity: Entity!`);
      const entity = {
        serviceName: dashboardStore.entity === "All" ? undefined : selectorStore.currentService.value,
        normal: dashboardStore.entity === "All" ? undefined : selectorStore.currentService.normal,
        serviceInstanceName: ["ServiceInstance", "ServiceInstanceRelation", "ProcessRelation", "Process"].includes(
          dashboardStore.entity,
        )
          ? selectorStore.currentPod && selectorStore.currentPod.value
          : undefined,
        endpointName: dashboardStore.entity.includes("Endpoint")
          ? selectorStore.currentPod && selectorStore.currentPod.value
          : undefined,
        processName: dashboardStore.entity.includes("Process")
          ? selectorStore.currentProcess && selectorStore.currentProcess.value
          : undefined,
        destNormal: isRelation ? selectorStore.currentDestService.normal : undefined,
        destServiceName: isRelation ? selectorStore.currentDestService.value : undefined,
        destServiceInstanceName: ["ServiceInstanceRelation", "ProcessRelation"].includes(dashboardStore.entity)
          ? selectorStore.currentDestPod && selectorStore.currentDestPod.value
          : undefined,
        destEndpointName:
          dashboardStore.entity === "EndpointRelation"
            ? selectorStore.currentDestPod && selectorStore.currentDestPod.value
            : undefined,
        destProcessName: dashboardStore.entity.includes("ProcessRelation")
          ? selectorStore.currentDestProcess && selectorStore.currentDestProcess.value
          : undefined,
      };
      conditions[`entity`] = entity;
    }
    const fragment = config.metrics.map((name: string, index: number) => {
      variables.push(`$expression${idx}${index}: String!`);
      conditions[`expression${idx}${index}`] = name;

      return `expression${idx}${index}: execExpression(expression: $expression${idx}${index}, entity: $entity, duration: $duration)${RespFields.execExpression}`;
    });
    return {
      variables,
      fragment,
      conditions,
    };
  }