import { ServerContext } from "../ServerContext";
import { Resolvers } from "../generated/graphql";

const GRAPHQL_SCHEMA_MIN_VERSION = 1;
const GRAPHQL_SCHEMA_CURRENT_VERSION = 1;

export const QueryResolvers: Resolvers<ServerContext> = {
  Query: {
    systems: async (_parent, args, contextValue, _info) => {
      return contextValue.systems
        .slice()
        .sort((a, b) => a.name.localeCompare(b.name))
        .map((system) => {
          return {
            name: system.name,
            id: system.id,
          };
        })
    },
    system: async (_parent, args, contextValue, _info) => {
      if (!args.id) return null;
      const system = contextValue.findSystemById(args.id);
      if (system === null) return null;

      return {
        name: system.name,
        id: system.id,
      };
    },
    // TODO: Update the GraphQL schema to require a system ID
    isNotificationScheduled: async (_parent, args, contextValue, _info) => {
      const notificationData = args.input;

      for (let system of contextValue.systems) {
        const isScheduled = await system.notificationRepository.isNotificationScheduled(notificationData);
        if (isScheduled) {
          return true;
        }
      }

      return false;
    },
    secondsThresholdForNotification: async (_parent, args, contextValue, _info) => {
      const notificationData = args.input;

      for (let system of contextValue.systems) {
        const isScheduled = await system.notificationRepository.isNotificationScheduled(notificationData);
        if (isScheduled) {
          return await system.notificationRepository.getSecondsThresholdForNotificationIfExists(args.input);
        }
      }

      return null;
    },
    schemaMinVersion: async (_parent, _args, _contextValue, _info) => {
      return GRAPHQL_SCHEMA_MIN_VERSION;
    },
    schemaCurrentVersion: async (_parent, _args, _contextValue, _info) => {
      return GRAPHQL_SCHEMA_CURRENT_VERSION;
    },
  },
}