import Database from "better-sqlite3";
import path from "node:path";
import { describe, expect, it } from "vitest";

function testDatabasePath() {
  const databaseUrl = process.env.DATABASE_URL;
  if (!databaseUrl?.startsWith("file:./")) {
    throw new Error("Disposable test DATABASE_URL was not provided");
  }
  return path.resolve(process.cwd(), databaseUrl.slice("file:".length));
}

describe("committed migration chain", () => {
  it("creates material groups and all expected group relationships", () => {
    const database = new Database(testDatabasePath(), { readonly: true });
    try {
      const tables = database
        .prepare("SELECT name FROM sqlite_master WHERE type = 'table'")
        .all() as Array<{ name: string }>;
      expect(tables.map((table) => table.name)).toContain("MaterialGroup");

      for (const table of ["Deck", "QuizSet", "ShareLink"]) {
        const columns = database.pragma(`table_info(${table})`) as Array<{
          name: string;
        }>;
        expect(columns.map((column) => column.name)).toContain("groupId");
      }

      const groupIndexes = database.pragma("index_list(ShareLink)") as Array<{
        name: string;
        unique: number;
      }>;
      expect(groupIndexes).toContainEqual(
        expect.objectContaining({ name: "ShareLink_groupId_key", unique: 1 })
      );
    } finally {
      database.close();
    }
  });
});