"use strict";

const { ServiceBroker } = require("moleculer");
const DbService = require("moleculer-db");

const broker = new ServiceBroker();

// Create a DB service for `user` entities
broker.createService({
    name: "users",
    mixins: DbService,

    settings: {
        fields: "_id username name"
    },

    afterConnected() {
        // Seed the DB with ˙this.create`
    }
});

broker.start()
// Create a new user
.then(() => broker.call("users.create", { entity: {
    username: "john",
    name: "John Doe",
    status: 1
}}))

// Get all users
.then(() => broker.call("users.find").then(console.log));

broker.createService({
    name: "posts",
    mixins: DbService,
    settings: {
        populates: {
            // Shorthand populate rule. Resolve the `voters` values with `users.model` action.
            "voters": "users.model",

            // Define the params of action call. It will receive only with username & full name of author.
            "author": {
                action: "users.model",
                params: {
                    fields: "username fullName"
                }
            }
        }
    }
});

const DbService = require("moleculer-db");

module.exports = {
    name: "posts",
    mixins: [DbService],

    settings: {
        fields: "_id title content votes"
    },

    actions: {
        // Increment `votes` field by post ID
        vote(ctx) {
            return this.updateById(ctx, { id: ctx.params.id, update: { $inc: { votes: 1 } }}));
        },

        // List posts of an author
        byAuthors(ctx) {
            return this.find(ctx, {
                query: {
                    author: ctx.params.authorID
                },
                limit: ctx.params.limit || 10,
                sort: "-createdAt"
            })
        }
    }
}