import "reflect-metadata"
import { DataSource } from "../../../src"
import {
    closeTestingConnections,
    createTestingConnections,
    reloadTestingDatabases,
} from "../../utils/test-utils"
import { View } from "../../../src/schema-builder/view/View"
import { expect } from "chai"

describe("query runner > create view", () => {
    let connections: DataSource[]
    before(async () => {
        connections = await createTestingConnections({
            entities: [__dirname + "/view/*{.js,.ts}"],
            enabledDrivers: ["postgres", "oracle"],
            schemaCreate: true,
            dropSchema: true,
        })
    })
    beforeEach(() => reloadTestingDatabases(connections))
    after(() => closeTestingConnections(connections))

    it("should correctly create VIEW and revert creation", () =>
        Promise.all(
            connections.map(async (connection) => {
                const queryRunner = connection.createQueryRunner()
                const view = new View({
                    name: "new_post_view",
                    expression: `SELECT * from "post"`,
                })
                await queryRunner.createView(view, true)

                let postView = await queryRunner.getView("new_post_view")
                expect(postView).to.be.exist

                await queryRunner.executeMemoryDownSql()

                postView = await queryRunner.getView("new_post_view")
                expect(postView).to.be.not.exist

                await queryRunner.release()
            }),
        ))

    it("should correctly create MATERIALIZED VIEW and revert creation", () =>
        Promise.all(
            connections.map(async (connection) => {
                const queryRunner = connection.createQueryRunner()
                const view = new View({
                    name: "new_post_materialized_view",
                    expression: `SELECT * from "post"`,
                    materialized: true,
                })
                await queryRunner.createView(view, true)

                let postMatView = await queryRunner.getView(
                    "new_post_materialized_view",
                )
                expect(postMatView).to.be.exist
                expect(postMatView!.materialized).to.be.true

                await queryRunner.executeMemoryDownSql()

                postMatView = await queryRunner.getView(
                    "new_post_materialized_view",
                )
                expect(postMatView).to.be.not.exist

                await queryRunner.release()
            }),
        ))
})
