export default function reducer()

in desktop/flipper-ui-core/src/reducers/plugins.tsx [133:229]
97 lines of code
21 McCabe index (conditional complexity)

export default function reducer(
  state: State | undefined = INITIAL_STATE,
  action: Actions,
): State {
  if (action.type === 'REGISTER_PLUGINS') {
    return produce(state, (draft) => {
      const {devicePlugins, clientPlugins} = draft;
      action.payload.forEach((p) => {
        if (devicePlugins.has(p.id) || clientPlugins.has(p.id)) {
          return;
        }
        if (isDevicePluginDefinition(p)) {
          devicePlugins.set(p.id, p);
        } else {
          clientPlugins.set(p.id, p);
        }
      });
    });
  } else if (action.type === 'GATEKEEPED_PLUGINS') {
    return {
      ...state,
      gatekeepedPlugins: state.gatekeepedPlugins.concat(action.payload),
    };
  } else if (action.type === 'DISABLED_PLUGINS') {
    return {
      ...state,
      disabledPlugins: state.disabledPlugins.concat(action.payload),
    };
  } else if (action.type === 'FAILED_PLUGINS') {
    return {
      ...state,
      failedPlugins: state.failedPlugins.concat(action.payload),
    };
  } else if (action.type === 'SELECTED_PLUGINS') {
    return {
      ...state,
      selectedPlugins: action.payload,
    };
  } else if (action.type === 'MARKETPLACE_PLUGINS') {
    return {
      ...state,
      marketplacePlugins: action.payload,
    };
  } else if (action.type === 'REGISTER_LOADED_PLUGINS') {
    return {
      ...state,
      loadedPlugins: new Map(action.payload.map((p) => [p.id, p])),
    };
  } else if (action.type === 'REGISTER_BUNDLED_PLUGINS') {
    return {
      ...state,
      bundledPlugins: new Map(action.payload.map((p) => [p.id, p])),
    };
  } else if (action.type === 'REGISTER_INSTALLED_PLUGINS') {
    return produce(state, (draft) => {
      draft.installedPlugins.clear();
      action.payload.forEach((p) => {
        if (!draft.uninstalledPluginNames.has(p.name)) {
          draft.installedPlugins.set(p.id, p);
        }
      });
    });
  } else if (action.type === 'PLUGIN_INSTALLED') {
    const plugin = action.payload;
    return produce(state, (draft) => {
      const existing = draft.installedPlugins.get(plugin.name);
      if (!existing || semver.gt(plugin.version, existing.version)) {
        draft.installedPlugins.set(plugin.name, plugin);
      }
    });
  } else if (action.type === 'PLUGIN_UNINSTALLED') {
    const plugin = action.payload;
    return produce(state, (draft) => {
      draft.clientPlugins.delete(plugin.id);
      draft.devicePlugins.delete(plugin.id);
      draft.loadedPlugins.delete(plugin.id);
      draft.uninstalledPluginNames.add(plugin.name);
    });
  } else if (action.type === 'PLUGIN_LOADED') {
    const plugin = action.payload;
    return produce(state, (draft) => {
      if (isDevicePluginDefinition(plugin)) {
        draft.devicePlugins.set(plugin.id, plugin);
      } else {
        draft.clientPlugins.set(plugin.id, plugin);
      }
      draft.uninstalledPluginNames.delete(plugin.details.name);
      draft.loadedPlugins.set(plugin.id, plugin.details);
    });
  } else if (action.type === 'PLUGINS_INITIALIZED') {
    return produce(state, (draft) => {
      draft.initialized = true;
    });
  } else {
    return state;
  }
}