<?php declare(strict_types=1);

namespace Test\Unit;

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

/**
 * Unit tests for the Query class
 */
class QueryTest extends TestCase
{
    protected function setUp(): void
    {
        Configuration::$mode = Mode::SQLite;
    }

    protected function tearDown(): void
    {
        Configuration::$mode = null;
    }

    public function testSelectFromTableSucceeds(): void
    {
        $this->assertEquals('SELECT data FROM testing', Query::selectFromTable('testing'),
            'Query not constructed correctly');
    }

    public function testWhereByFieldsSucceedsForSingleField(): void
    {
        $this->assertEquals("data->>'test_field' <= :it",
            Query::whereByFields([Field::LE('test_field', '', ':it')]), 'WHERE fragment not constructed correctly');
    }

    public function testWhereByFieldsSucceedsForMultipleFieldsAll(): void
    {
        $this->assertEquals("data->>'test_field' <= :it AND data->>'other_field' = :other",
            Query::whereByFields([Field::LE('test_field', '', ':it'), Field::EQ('other_field', '', ':other')]),
            'WHERE fragment not constructed correctly');
    }

    public function testWhereByFieldsSucceedsForMultipleFieldsAny(): void
    {
        $this->assertEquals("data->>'test_field' <= :it OR data->>'other_field' = :other",
            Query::whereByFields([Field::LE('test_field', '', ':it'), Field::EQ('other_field', '', ':other')],
                FieldMatch::Any),
            'WHERE fragment not constructed correctly');
    }

    #[TestDox('Where by ID succeeds with default parameter')]
    public function testWhereByIdSucceedsWithDefaultParameter(): void
    {
        $this->assertEquals("data->>'id' = :id", Query::whereById(), 'WHERE fragment not constructed correctly');
    }

    #[TestDox('Where by ID succeeds with specific parameter')]
    public function testWhereByIdSucceedsWithSpecificParameter(): void
    {
        $this->assertEquals("data->>'id' = :di", Query::whereById(':di'), 'WHERE fragment not constructed correctly');
    }

    #[TestDox('Insert succeeds with no auto-ID for PostgreSQL')]
    public function testInsertSucceedsWithNoAutoIdForPostgreSQL(): void
    {
        Configuration::$mode = Mode::PgSQL;
        try {
            $this->assertEquals('INSERT INTO test_tbl VALUES (:data)', Query::insert('test_tbl'),
                'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with no auto-ID for SQLite')]
    public function testInsertSucceedsWithNoAutoIdForSQLite(): void
    {
        Configuration::$mode = Mode::SQLite;
        try {
            $this->assertEquals('INSERT INTO test_tbl VALUES (:data)', Query::insert('test_tbl'),
                'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with auto numeric ID for PostgreSQL')]
    public function testInsertSucceedsWithAutoNumericIdForPostgreSQL(): void
    {
        Configuration::$mode = Mode::PgSQL;
        try {
            $this->assertEquals(
                "INSERT INTO test_tbl VALUES (:data || ('{\"id\":' "
                    . "|| (SELECT COALESCE(MAX(data->>'id'), 0) + 1 FROM test_tbl) || '}'))",
                Query::insert('test_tbl', AutoId::Number), 'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with auto numeric ID for SQLite')]
    public function testInsertSucceedsWithAutoNumericIdForSQLite(): void
    {
        Configuration::$mode = Mode::SQLite;
        try {
            $this->assertEquals(
                "INSERT INTO test_tbl VALUES (json_set(:data, '$.id', "
                    . "(SELECT coalesce(max(data->>'id'), 0) + 1 FROM test_tbl)))",
                Query::insert('test_tbl', AutoId::Number), 'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with auto UUID for PostgreSQL')]
    public function testInsertSucceedsWithAutoUuidForPostgreSQL(): void
    {
        Configuration::$mode = Mode::PgSQL;
        try {
            $query = Query::insert('test_tbl', AutoId::UUID);
            $this->assertStringStartsWith("INSERT INTO test_tbl VALUES (:data || '{\"id\":\"", $query,
                'INSERT statement not constructed correctly');
            $this->assertStringEndsWith("\"}')", $query, 'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with auto UUID for SQLite')]
    public function testInsertSucceedsWithAutoUuidForSQLite(): void
    {
        Configuration::$mode = Mode::SQLite;
        try {
            $query = Query::insert('test_tbl', AutoId::UUID);
            $this->assertStringStartsWith("INSERT INTO test_tbl VALUES (json_set(:data, '$.id', '", $query,
                'INSERT statement not constructed correctly');
            $this->assertStringEndsWith("'))", $query, 'INSERT statement not constructed correctly');
        } finally {
            Configuration::$mode = null;
        }
    }

    #[TestDox('Insert succeeds with auto random string for PostgreSQL')]
    public function testInsertSucceedsWithAutoRandomStringForPostgreSQL(): void
    {
        Configuration::$mode           = Mode::PgSQL;
        Configuration::$idStringLength = 8;
        try {
            $query = Query::insert('test_tbl', AutoId::RandomString);
            $this->assertStringStartsWith("INSERT INTO test_tbl VALUES (:data || '{\"id\":\"", $query,
                'INSERT statement not constructed correctly');
            $this->assertStringEndsWith("\"}')", $query, 'INSERT statement not constructed correctly');
            $id = str_replace(["INSERT INTO test_tbl VALUES (:data || '{\"id\":\"", "\"}')"], '', $query);
            $this->assertEquals(8, strlen($id), "Generated ID [$id] should have been 8 characters long");
        } finally {
            Configuration::$mode           = null;
            Configuration::$idStringLength = 16;
        }
    }

    #[TestDox('Insert succeeds with auto random string for SQLite')]
    public function testInsertSucceedsWithAutoRandomStringForSQLite(): void
    {
        Configuration::$mode   = Mode::SQLite;
        try {
            $query = Query::insert('test_tbl', AutoId::RandomString);
            $this->assertStringStartsWith("INSERT INTO test_tbl VALUES (json_set(:data, '$.id', '", $query,
                'INSERT statement not constructed correctly');
            $this->assertStringEndsWith("'))", $query, 'INSERT statement not constructed correctly');
            $id = str_replace(["INSERT INTO test_tbl VALUES (json_set(:data, '$.id', '", "'))"], '', $query);
            $this->assertEquals(16, strlen($id), "Generated ID [$id] should have been 16 characters long");
        } finally {
            Configuration::$mode   = null;
        }
    }

    public function testInsertFailsWhenModeNotSet(): void
    {
        $this->expectException(DocumentException::class);
        Configuration::$mode = null;
        Query::insert('kaboom');
    }

    public function testSaveSucceeds(): void
    {
        $this->assertEquals(
            "INSERT INTO test_tbl VALUES (:data) ON CONFLICT ((data->>'id')) DO UPDATE SET data = EXCLUDED.data",
            Query::save('test_tbl'), 'INSERT ON CONFLICT statement not constructed correctly');
    }

    public function testUpdateSucceeds()
    {
        $this->assertEquals("UPDATE testing SET data = :data WHERE data->>'id' = :id", Query::update('testing'),
            'UPDATE statement not constructed correctly');
    }
}