import { createDbAdapter, unregisterEngine } from "@suaveplan/api-db-adapter";
import type { TenantId } from "@suaveplan/api-types/tenant";
import { afterEach, describe, expect, it } from "@suaveplan/testing/runner";
import {
    registerSqliteMemoryEngine,
    runSqliteMemoryMigrations,
    type SqliteMigrationsFsReader,
} from "../../src/index.js";

/**
 * Integration test mirroring how Stage-5 `createTestHost` will wire this
 * adapter when the api-host helper lands: register the engine, construct a
 * `DbAdapter` via the same `createDbAdapter` Stage-4 entry point production
 * uses, drive migrations, and exercise the scoped surface.
 */
describe("api-db-sqlite-memory integration", () => {
    afterEach(() => unregisterEngine("sqlite-memory"));

    it('createTestHost resolves engine:"sqlite-memory" to this adapter', {
        timeout: 5000,
    }, async () => {
        registerSqliteMemoryEngine();
        const adapter = await createDbAdapter({
            engine: "sqlite-memory",
            url: ":memory:",
        });
        try {
            expect(adapter.admin.engine).toBe("sqlite-memory");
        } finally {
            await adapter.close();
        }
    });

    it("end-to-end: migrations + scoped writes + admin reads", {
        timeout: 5000,
    }, async () => {
        registerSqliteMemoryEngine();
        const adapter = await createDbAdapter({
            engine: "sqlite-memory",
            url: ":memory:",
            tenantColumn: "tenant_id",
        });
        try {
            const fs: SqliteMigrationsFsReader = {
                readdir: async () => ["001_init.sql"],
                readFile: async () =>
                    "CREATE TABLE posts (id INTEGER PRIMARY KEY, tenant_id TEXT, title TEXT)",
            };
            await runSqliteMemoryMigrations({
                plugin: "posts",
                admin: adapter.admin,
                migrationsDir: "/v",
                fs,
            });
            const acme = adapter.scoped("acme" as TenantId);
            await acme.execute("INSERT INTO posts (title) VALUES (?)", [
                "hello",
            ]);
            const rows = await adapter.admin.query<
                { title: string; tenant_id: string }[]
            >("SELECT title, tenant_id FROM posts");
            expect(rows).toEqual([{ title: "hello", tenant_id: "acme" }]);
        } finally {
            await adapter.close();
        }
    });
});