sentry/static/app/views/insights/common/queries/useHasFirstSpan.tsx

import type {Project} from 'sentry/types/project';
import usePageFilters from 'sentry/utils/usePageFilters';
import useProjects from 'sentry/utils/useProjects';
import {ModuleName} from 'sentry/views/insights/types';

const excludedModuleNames = [
  ModuleName.ALL,
  ModuleName.OTHER,
  ModuleName.MOBILE_UI,
] as const;

type ExcludedModuleNames = (typeof excludedModuleNames)[number];

const modulePropertyMap: Record<
  Exclude<ModuleName, ExcludedModuleNames>,
  keyof Project
> = {
  [ModuleName.HTTP]: 'hasInsightsHttp',
  [ModuleName.DB]: 'hasInsightsDb',
  [ModuleName.CACHE]: 'hasInsightsCaches',
  [ModuleName.VITAL]: 'hasInsightsVitals',
  [ModuleName.QUEUE]: 'hasInsightsQueues',
  [ModuleName.SCREEN_LOAD]: 'hasInsightsScreenLoad',
  [ModuleName.APP_START]: 'hasInsightsAppStart',
  // Renamed resource to assets
  [ModuleName.RESOURCE]: 'hasInsightsAssets',
  [ModuleName.AI]: 'hasInsightsLlmMonitoring',
};

/* Returns whether the module and current project selection has received a first insight span */
export function useHasFirstSpan(module: ModuleName): boolean {
  const {projects: allProjects} = useProjects();
  const pageFilters = usePageFilters();

  // Unsupported modules. Remove MOBILE_UI from this list once released.
  if ((excludedModuleNames as readonly ModuleName[]).includes(module)) return false;

  let selectedProjects: Project[] = [];
  // There are three cases for the selected pageFilter projects:
  //  - [] empty list represents "My Projects"
  //  - [-1] represents "All Projects"
  //  - [.., ..] otherwise, represents a list of project IDs
  if (pageFilters.selection.projects.length === 0) {
    selectedProjects = allProjects.filter(p => p.isMember);
  } else if (
    pageFilters.selection.projects.length === 1 &&
    pageFilters.selection.projects[0] === -1
  ) {
    selectedProjects = allProjects;
  } else {
    selectedProjects = allProjects.filter(p =>
      pageFilters.selection.projects.includes(parseInt(p.id, 10))
    );
  }

  return selectedProjects.some(p => p[modulePropertyMap[module]] === true);
}