import "reflect-metadata"
import { DataSource } from "../../../src"
import {
    closeTestingConnections,
    createTestingConnections,
} from "../../utils/test-utils"
import { TestEntity } from "./entity/Test"
import { ViewA } from "./entity/ViewA"
import { ViewB } from "./entity/ViewB"
import { ViewC } from "./entity/ViewC"

describe("github issues > #7586 Oddly indexed views are not dropped in migration", () => {
    let connections: DataSource[]
    before(
        async () =>
            (connections = await createTestingConnections({
                enabledDrivers: ["postgres"],
                schemaCreate: true,
                dropSchema: true,
                entities: [TestEntity, ViewA, ViewB, ViewC],
            })),
    )
    after(() => closeTestingConnections(connections))

    it("should generate drop queries for all views", () =>
        Promise.all(
            connections.map(async (connection) => {
                const expectedDrops: RegExp[] = []
                for (const view of [ViewA, ViewB, ViewC]) {
                    const metadata = connection.getMetadata(view)
                    metadata.expression = (
                        metadata.expression as string
                    )?.replace("V1", "V2")
                    expectedDrops.push(
                        new RegExp(`^DROP\\s+VIEW.*"${metadata.tableName}"`),
                    )
                }
                const sqlInMemory = await connection.driver
                    .createSchemaBuilder()
                    .log()
                sqlInMemory.downQueries
                    .filter((q) =>
                        expectedDrops.find((expected) =>
                            q.query.match(expected),
                        ),
                    )
                    .length.should.be.equal(expectedDrops.length)
                sqlInMemory.upQueries
                    .filter((q) =>
                        expectedDrops.find((expected) =>
                            q.query.match(expected),
                        ),
                    )
                    .length.should.be.equal(expectedDrops.length)
            }),
        ))
})