import { Cliente } from "./entity/cliente"
import "reflect-metadata"
import {
    closeTestingConnections,
    createTestingConnections,
    reloadTestingDatabases,
} from "../../utils/test-utils"
import { DataSource } from "../../../src"
import { TipoCliente } from "./entity/tipo-cliente"

describe("github issue #1754 Repository.save() always updating ManyToOne relation", () => {
    let connections: DataSource[]
    before(
        async () =>
            (connections = await createTestingConnections({
                entities: [__dirname + "/entity/*{.js,.ts}"],
                enabledDrivers: ["mysql"],
            })),
    )
    beforeEach(() => reloadTestingDatabases(connections))
    after(() => closeTestingConnections(connections))

    it("should work as expected", () =>
        Promise.all(
            connections.map(async (connection) => {
                const tipoCliente1 = new TipoCliente()
                tipoCliente1.id = 1
                tipoCliente1.descricao = "Mensalista"
                await connection.manager.save(tipoCliente1)

                const tipoCliente2 = new TipoCliente()
                tipoCliente2.id = 2
                tipoCliente2.descricao = "XXXX"
                await connection.manager.save(tipoCliente2)

                const cliente = new Cliente()
                cliente.id = 1
                cliente.nome = "Kirliam"
                cliente.tipo = tipoCliente1
                await connection.manager.save(cliente)

                // The issue happens when I receive the cliente JSON from user interface
                // 1. First I tried to call save() after receive the JSON
                const myReceivedJson1 = {
                    id: 1,
                    nome: "Kirliam changed 1",
                    tipo: { id: 1, descricao: "Mensalista" },
                }
                await connection.manager
                    .getRepository(Cliente)
                    .save(myReceivedJson1)

                // 2. After I tried to preload the entity before saving. I was expecting that just
                // the name column to be updated, but in both cases tipoCliente is also being updated.
                const myReceivedJson2 = {
                    id: 1,
                    nome: "Kirliam changed 2",
                    tipo: { id: 1, descricao: "Mensalista" },
                }
                const clienteDb1: Cliente = (await connection.manager
                    .getRepository(Cliente)
                    .preload(myReceivedJson2)) as Cliente
                await connection.manager.getRepository(Cliente).save(clienteDb1)

                const myReceivedJson3 = {
                    id: 1,
                    nome: "Kirliam changed 3",
                    tipo: { id: 2, descricao: "XXXX" },
                }
                await connection.manager
                    .getRepository(Cliente)
                    .save(myReceivedJson3)

                // Fail just to check the query log!
                // Query from log:  UPDATE `cliente` SET `nome`=?, `tipoCliente`=?  WHERE `id`=? -- PARAMETERS: ["Kirliam changed 2",1,1]
                // expect(false, "Verificar as queries!!!").is.true;
            }),
        ))
})
