import "reflect-metadata"
import { expect } from "chai"
import {
    closeTestingConnections,
    createTestingConnections,
    reloadTestingDatabases,
} from "../../utils/test-utils"
import { DataSource } from "../../../src/data-source/DataSource"
import { Post } from "./entity/Post"

describe("github issues > #4947 beforeUpdate subscriber entity argument is undefined", () => {
    let connections: DataSource[]
    before(
        async () =>
            (connections = await createTestingConnections({
                entities: [__dirname + "/entity/*{.js,.ts}"],
                subscribers: [__dirname + "/subscriber/*{.js,.ts}"],
            })),
    )
    beforeEach(() => reloadTestingDatabases(connections))
    after(() => closeTestingConnections(connections))

    it("if entity has been updated via repository update(), subscriber should get passed entity to change", () =>
        Promise.all(
            connections.map(async function (connection) {
                let repo = connection.getRepository(Post)

                const newPost = new Post()
                await repo.save(newPost)

                const createdPost = await repo.findOne({
                    where: {
                        id: newPost.id,
                    },
                })

                // test that the newly inserted post was touched by beforeInsert PostSubscriber event
                expect(createdPost).not.to.be.null
                expect(createdPost!.title).to.equal(
                    "set in subscriber when created",
                )

                // change the entity
                await repo.update(createdPost!.id, { colToUpdate: 1 })

                const updatedPost = await repo.findOne({
                    where: {
                        id: createdPost!.id,
                    },
                })

                // test that the updated post was touched by beforeUpdate PostSubscriber event
                expect(updatedPost).not.to.be.null
                expect(updatedPost!.title).to.equal(
                    "set in subscriber when updated",
                )
            }),
        ))
})