import { alias, getTableConfig, integer, pgTable } from "drizzle-orm/pg-core";
import { describe, expect, it } from "vitest";
import { parseModuleSchemaDefinition } from "../src/modules/legacy-schema-definition.js";

describe("the legacy module schema definition", () => {
  it("normalizes and freezes a typed schema definition without freezing its tables", () => {
    const records = pgTable("example_records", { id: integer().primaryKey() });
    const definition = parseModuleSchemaDefinition({
      moduleId: "example",
      tables: { records },
    });

    expect(definition.tables.records).toBe(records);
    expect(getTableConfig(records).name).toBe("example_records");
    expect(Object.isFrozen(definition)).toBe(true);
    expect(Object.isFrozen(definition.tables)).toBe(true);
    expect(Object.isFrozen(records)).toBe(false);
  });

  it("rejects malformed, empty, unknown, and non-PostgreSQL table definitions", () => {
    const records = pgTable("example_records", { id: integer() });
    const disguisedRecords = alias(records, "example_disguised_records");
    expect(() => parseModuleSchemaDefinition({ moduleId: "example", tables: {} })).toThrow();
    expect(() =>
      parseModuleSchemaDefinition({ moduleId: "example", tables: { records: {} } }),
    ).toThrow();
    expect(() =>
      parseModuleSchemaDefinition({ moduleId: "example", tables: { records }, extra: true }),
    ).toThrow();
    expect(() =>
      parseModuleSchemaDefinition({ moduleId: "example", tables: { disguisedRecords } }),
    ).toThrow();
  });
});