<?php declare(strict_types=1);

namespace Test\Unit\Query;

use BitBadger\PDODocument\{Configuration, DocumentException, Field, Mode};
use BitBadger\PDODocument\Query\Count;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;

/**
 * Unit tests for the Count class
 */
#[TestDox('Count Queries (Unit tests)')]
class CountTest extends TestCase
{
    public function tearDown(): void
    {
        Configuration::$mode = null;
        parent::tearDown();
    }

    public function testAllSucceeds(): void
    {
        $this->assertEquals('SELECT COUNT(*) FROM a_table', Count::all('a_table'),
            'SELECT statement not generated correctly');
    }

    public function testByFieldsSucceeds(): void
    {
        Configuration::$mode = Mode::SQLite;
        $this->assertEquals("SELECT COUNT(*) FROM somewhere WHERE data->>'errors' > :errors",
            Count::byFields('somewhere', [Field::GT('errors', 10, ':errors')]),
            'SELECT statement not generated correctly');
    }

    #[TestDox('By contains succeeds for PostgreSQL')]
    public function testByContainsSucceedsForPostgreSQL(): void
    {
        Configuration::$mode = Mode::PgSQL;
        $this->assertEquals('SELECT COUNT(*) FROM the_table WHERE data @> :criteria', Count::byContains('the_table'),
            'SELECT statement not generated correctly');
    }

    #[TestDox('By contains fails for non PostgreSQL')]
    public function testByContainsFailsForNonPostgreSQL(): void
    {
        $this->expectException(DocumentException::class);
        Count::byContains('');
    }

    #[TestDox('By JSON Path succeeds for PostgreSQL')]
    public function testByJsonPathSucceedsForPostgreSQL(): void
    {
        Configuration::$mode = Mode::PgSQL;
        $this->assertEquals('SELECT COUNT(*) FROM a_table WHERE jsonb_path_exists(data, :path::jsonpath)',
            Count::byJsonPath('a_table'), 'SELECT statement not generated correctly');
    }

    #[TestDox('By JSON Path fails for non PostgreSQL')]
    public function testByJsonPathFailsForNonPostgreSQL(): void
    {
        $this->expectException(DocumentException::class);
        Count::byJsonPath('');
    }
}