// Import Bunjil and the Policy Types
import { Bunjil, Policy, PolicyCondition, PolicyEffect } from "bunjil";

// Create a schema

const typeDefs: string = `
  type User {
    id: ID
    name: String
    password: String
    posts(limit: Int): [Post]
  }

  type Post {
    id: ID
    title: String
    views: Int
    author: User
  }

  type Query {
    author(id: ID): User
    topPosts(limit: Int): [Post]
  }
`;

// Resolvers are not shown in this example.
const schema = makeExecutableSchema({
    typeDefs,
    resolvers,
});

// Create a simple policy allowing public access to the data
const policies: Policy[] = [
    {
        id: "public:read-all",
        resources: ["Query::topPosts", "Post::*", "User::*"],
        actions: ["query"],
        effect: PolicyEffect.Allow,
        roles: ["*"],
    },
    {
        // Explicitly deny access to the password field.
        // This will superseed any other policy
        id: "deny:user::password",
        resources: ["User::password"],
        actions: ["query"],
        effect: PolicyEffect.Deny,
        roles: ["*"],
    },
];

// Create our bunjil server
const bunjil: Bunjil = new Bunjil({
    // Server config
    server: {
        port: 3000,
        tracing: true,
        cacheControl: true,
    },
    // Optionally in DEV you can enable the GraphQL playground
    playgroundOptions: {
        enabled: false,
    },
    // Set the endpoints where GraphQL is available at
    endpoints: {
        graphQL: "/graphql",
        subscriptions: "/graphql/subscriptions",
        playground: "/playground",
    },
    policies,
});

// Add our schema to the Bunjil instance
bunjil.addSchema({ schemas: [schema] });

// Now start Bunjil
await bunjil.start();