<?php

declare(strict_types=1);

namespace Doctrine\Migrations\Configuration;

use Doctrine\Migrations\Configuration\Exception\FrozenConfiguration;
use Doctrine\Migrations\Configuration\Exception\UnknownConfigurationValue;
use Doctrine\Migrations\Exception\MigrationException;
use Doctrine\Migrations\Metadata\Storage\MetadataStorageConfiguration;

use function strtolower;

/**
 * The Configuration class is responsible for defining migration configuration information.
 */
final class Configuration
{
    public const VERSIONS_ORGANIZATION_NONE              = 'none';
    public const VERSIONS_ORGANIZATION_BY_YEAR           = 'year';
    public const VERSIONS_ORGANIZATION_BY_YEAR_AND_MONTH = 'year_and_month';

    /** @var array<string, string> */
    private array $migrationsDirectories = [];

    /** @var string[] */
    private array $migrationClasses = [];

    private bool $migrationsAreOrganizedByYear = false;

    private bool $migrationsAreOrganizedByYearAndMonth = false;

    private string|null $customTemplate = null;

    private bool $isDryRun = false;

    private bool $allOrNothing = false;

    private bool $transactional = true;

    private string|null $connectionName = null;

    private string|null $entityManagerName = null;

    private bool $checkDbPlatform = true;

    private MetadataStorageConfiguration|null $metadataStorageConfiguration = null;

    private bool $frozen = false;

    public function freeze(): void
    {
        $this->frozen = true;
    }

    private function assertNotFrozen(): void
    {
        if ($this->frozen) {
            throw FrozenConfiguration::new();
        }
    }

    public function setMetadataStorageConfiguration(MetadataStorageConfiguration $metadataStorageConfiguration): void
    {
        $this->assertNotFrozen();
        $this->metadataStorageConfiguration = $metadataStorageConfiguration;
    }

    /** @return string[] */
    public function getMigrationClasses(): array
    {
        return $this->migrationClasses;
    }

    public function addMigrationClass(string $className): void
    {
        $this->assertNotFrozen();
        $this->migrationClasses[] = $className;
    }

    public function getMetadataStorageConfiguration(): MetadataStorageConfiguration|null
    {
        return $this->metadataStorageConfiguration;
    }

    public function addMigrationsDirectory(string $namespace, string $path): void
    {
        $this->assertNotFrozen();
        $this->migrationsDirectories[$namespace] = $path;
    }

    /** @return array<string,string> */
    public function getMigrationDirectories(): array
    {
        return $this->migrationsDirectories;
    }

    public function getConnectionName(): string|null
    {
        return $this->connectionName;
    }

    public function setConnectionName(string|null $connectionName): void
    {
        $this->assertNotFrozen();
        $this->connectionName = $connectionName;
    }

    public function getEntityManagerName(): string|null
    {
        return $this->entityManagerName;
    }

    public function setEntityManagerName(string|null $entityManagerName): void
    {
        $this->assertNotFrozen();
        $this->entityManagerName = $entityManagerName;
    }

    public function setCustomTemplate(string|null $customTemplate): void
    {
        $this->assertNotFrozen();
        $this->customTemplate = $customTemplate;
    }

    public function getCustomTemplate(): string|null
    {
        return $this->customTemplate;
    }

    public function areMigrationsOrganizedByYear(): bool
    {
        return $this->migrationsAreOrganizedByYear;
    }

    /** @throws MigrationException */
    public function setMigrationsAreOrganizedByYear(
        bool $migrationsAreOrganizedByYear = true,
    ): void {
        $this->assertNotFrozen();
        $this->migrationsAreOrganizedByYear = $migrationsAreOrganizedByYear;
    }

    /** @throws MigrationException */
    public function setMigrationsAreOrganizedByYearAndMonth(
        bool $migrationsAreOrganizedByYearAndMonth = true,
    ): void {
        $this->assertNotFrozen();
        $this->migrationsAreOrganizedByYear         = $migrationsAreOrganizedByYearAndMonth;
        $this->migrationsAreOrganizedByYearAndMonth = $migrationsAreOrganizedByYearAndMonth;
    }

    public function areMigrationsOrganizedByYearAndMonth(): bool
    {
        return $this->migrationsAreOrganizedByYearAndMonth;
    }

    public function setIsDryRun(bool $isDryRun): void
    {
        $this->assertNotFrozen();
        $this->isDryRun = $isDryRun;
    }

    public function isDryRun(): bool
    {
        return $this->isDryRun;
    }

    public function setAllOrNothing(bool $allOrNothing): void
    {
        $this->assertNotFrozen();
        $this->allOrNothing = $allOrNothing;
    }

    public function isAllOrNothing(): bool
    {
        return $this->allOrNothing;
    }

    public function setTransactional(bool $transactional): void
    {
        $this->assertNotFrozen();
        $this->transactional = $transactional;
    }

    public function isTransactional(): bool
    {
        return $this->transactional;
    }

    public function setCheckDatabasePlatform(bool $checkDbPlatform): void
    {
        $this->checkDbPlatform = $checkDbPlatform;
    }

    public function isDatabasePlatformChecked(): bool
    {
        return $this->checkDbPlatform;
    }

    public function setMigrationOrganization(string $migrationOrganization): void
    {
        $this->assertNotFrozen();

        match (strtolower($migrationOrganization)) {
            self::VERSIONS_ORGANIZATION_NONE => $this->setMigrationsAreOrganizedByYearAndMonth(false),
            self::VERSIONS_ORGANIZATION_BY_YEAR => $this->setMigrationsAreOrganizedByYear(),
            self::VERSIONS_ORGANIZATION_BY_YEAR_AND_MONTH => $this->setMigrationsAreOrganizedByYearAndMonth(),
            default => throw UnknownConfigurationValue::new('organize_migrations', $migrationOrganization),
        };
    }
}