import {describe, expect, it} from 'vitest';
import { convertToDataSourceQueryCollection } from '../../src/backend';

describe('query', () => {
	it('returns a data source query collection from search params', () => {
		const q = new URLSearchParams();
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toBeInstanceOf(Array);
	});

	it('returns an equal query', () => {
		const q = new URLSearchParams({
			attr: 'foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '=',
				rhs: '"foo"',
			},
		]);
	});

	it('returns an equal expression query', () => {
		const q = new URLSearchParams({
			attr: '.eq.foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '=',
				rhs: '"foo"',
			},
		]);
	});

	it('returns a not equal expression query', () => {
		const q = new URLSearchParams({
			attr: '.neq.foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '!=',
				rhs: '"foo"',
			},
		]);
	});

	it('returns a greater than expression query', () => {
		const q = new URLSearchParams({
			attr: '.gt.foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '>',
				rhs: '"foo"',
			},
		]);
	});

	it('returns a less than expression query', () => {
		const q = new URLSearchParams({
			attr: '.lt.foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '<',
				rhs: '"foo"',
			},
		]);
	});

	it('returns a greater than or equal expression query', () => {
		expect(
			convertToDataSourceQueryCollection(
				new URLSearchParams({
					attr: '.gt.eq.foo'
				})
			)
		).toEqual([
			{
				lhs: 'attr',
				operator: '>=',
				rhs: '"foo"',
			},
		]);
		expect(
			convertToDataSourceQueryCollection(
				new URLSearchParams({
					attr: '.gte.foo'
				})
			)
		).toEqual([
			{
				lhs: 'attr',
				operator: '>=',
				rhs: '"foo"',
			},
		]);
	});

	it('returns a less than or equal expression query', () => {
		const q = new URLSearchParams({
			attr: '.lt.eq.foo'
		});
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '<=',
				rhs: '"foo"',
			},
		]);
	});

	it('returns an AND operator query', () => {
		const q = new URLSearchParams([
			['attr', 'foo'],
			['attr', 'bar'],
		]);
		const collection = convertToDataSourceQueryCollection(q);
		expect(collection).toEqual([
			{
				lhs: 'attr',
				operator: '=',
				rhs: '"foo"',
			},
			{
				lhs: 'attr',
				operator: '=',
				rhs: '"bar"',
			},
		]);
	});

	it.skip('returns a query', () => {
		// * is not percent-encoded
		// . is not percent-encoded (used for form data such as input text dir...)
		//
		const q = new URLSearchParams({
			'.foo': 'foo',
		});

		console.log(q.toString());
	});
});