<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2026 F7cloud / F7cloud GmbH and F7cloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Mail\Migration;

use Closure;
use OCP\DB\ISchemaWrapper;
use OCP\DB\Types;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;
use Override;

/**
 * Create mail_mailbox_shares table for folder sharing (shared-with-me and subfolders).
 *
 * @codeCoverageIgnore
 */
class Version5007Date20260204120000 extends SimpleMigrationStep {

	#[Override]
	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
		$schema = $schemaClosure();
		if ($schema->hasTable('mail_mailbox_shares')) {
			return null;
		}

		$table = $schema->createTable('mail_mailbox_shares');

		$table->addColumn('id', Types::INTEGER, [
			'autoincrement' => true,
			'notnull' => true,
		]);
		$table->addColumn('owner_user_id', Types::STRING, [
			'notnull' => true,
			'length' => 64,
		]);
		$table->addColumn('account_id', Types::INTEGER, [
			'notnull' => true,
		]);
		$table->addColumn('mailbox_id', Types::INTEGER, [
			'notnull' => true,
		]);
		$table->addColumn('share_type', Types::STRING, [
			'notnull' => true,
			'length' => 64,
		]);
		$table->addColumn('share_with', Types::STRING, [
			'notnull' => true,
			'length' => 64,
		]);
		$table->addColumn('permission', Types::STRING, [
			'notnull' => true,
			'length' => 32,
		]);
		$table->addColumn('created_at', Types::INTEGER, [
			'notnull' => true,
			'default' => 0,
		]);

		$table->setPrimaryKey(['id']);
		$table->addUniqueIndex(
			['owner_user_id', 'account_id', 'mailbox_id', 'share_type', 'share_with'],
			'mail_mailbox_shares_owner_acc_mb_sw'
		);
		$table->addIndex(['share_with', 'share_type'], 'mail_mailbox_shares_share_with_type');

		if ($schema->hasTable('mail_mailboxes')) {
			$table->addForeignKeyConstraint(
				$schema->getTable('mail_mailboxes'),
				['mailbox_id'],
				['id'],
				['onDelete' => 'CASCADE']
			);
		}
		if ($schema->hasTable('mail_accounts')) {
			$table->addForeignKeyConstraint(
				$schema->getTable('mail_accounts'),
				['account_id'],
				['id'],
				['onDelete' => 'CASCADE']
			);
		}

		return $schema;
	}
}