<?php

declare(strict_types=1);

namespace DoctrineMigrations;

use Doctrine\DBAL\Schema\Schema;
use Doctrine\Migrations\AbstractMigration;

final class Version20260806124440 extends AbstractMigration
{
    public function getDescription(): string
    {
        return 'Add treatment protocols: the multi-session course a service can carry';
    }

    public function up(Schema $schema): void
    {
        $this->addSql(<<<'SQL'
            CREATE TABLE treatment_protocols (
                id INT AUTO_INCREMENT NOT NULL,
                uuid VARCHAR(36) NOT NULL,
                service_item_id INT NOT NULL,
                supervisor_doctor_id INT DEFAULT NULL,
                active TINYINT DEFAULT 1 NOT NULL,
                created_at INT NOT NULL,
                updated_at INT NOT NULL,
                UNIQUE INDEX UNIQ_76894114D17F50A6 (uuid),
                UNIQUE INDEX uq_treatment_protocol_service (service_item_id),
                INDEX IDX_76894114EB665C09 (supervisor_doctor_id),
                PRIMARY KEY (id)
            ) DEFAULT CHARACTER SET utf8mb4
        SQL);

        $this->addSql(<<<'SQL'
            CREATE TABLE treatment_protocol_steps (
                id INT AUTO_INCREMENT NOT NULL,
                protocol_id INT NOT NULL,
                step_number SMALLINT NOT NULL,
                offset_days SMALLINT NOT NULL,
                created_at INT NOT NULL,
                UNIQUE INDEX uq_protocol_step_number (protocol_id, step_number),
                INDEX IDX_65053F5ACCD59258 (protocol_id),
                PRIMARY KEY (id)
            ) DEFAULT CHARACTER SET utf8mb4
        SQL);

        $this->addSql(<<<'SQL'
            CREATE TABLE treatment_protocol_staff (
                id INT AUTO_INCREMENT NOT NULL,
                protocol_id INT NOT NULL,
                staff_id INT NOT NULL,
                UNIQUE INDEX uq_protocol_staff (protocol_id, staff_id),
                INDEX IDX_1349C6BACCD59258 (protocol_id),
                INDEX IDX_1349C6BAD4D57CD (staff_id),
                PRIMARY KEY (id)
            ) DEFAULT CHARACTER SET utf8mb4
        SQL);

        // حذف سرویس، پروتکلش را هم می‌برد: پروتکلِ بی‌سرویس معنایی ندارد.
        $this->addSql('ALTER TABLE treatment_protocols ADD CONSTRAINT FK_76894114DDEB00C2 FOREIGN KEY (service_item_id) REFERENCES service_items (id) ON DELETE CASCADE');
        // ولی رفتن پزشک ناظر نباید دوره را حذف کند — فقط ناظرش خالی می‌شود.
        $this->addSql('ALTER TABLE treatment_protocols ADD CONSTRAINT FK_76894114EB665C09 FOREIGN KEY (supervisor_doctor_id) REFERENCES doctors (id) ON DELETE SET NULL');
        $this->addSql('ALTER TABLE treatment_protocol_steps ADD CONSTRAINT FK_65053F5ACCD59258 FOREIGN KEY (protocol_id) REFERENCES treatment_protocols (id) ON DELETE CASCADE');
        $this->addSql('ALTER TABLE treatment_protocol_staff ADD CONSTRAINT FK_1349C6BACCD59258 FOREIGN KEY (protocol_id) REFERENCES treatment_protocols (id) ON DELETE CASCADE');
        $this->addSql('ALTER TABLE treatment_protocol_staff ADD CONSTRAINT FK_1349C6BAD4D57CD FOREIGN KEY (staff_id) REFERENCES clinic_staff (id) ON DELETE CASCADE');
    }

    public function down(Schema $schema): void
    {
        $this->addSql('ALTER TABLE treatment_protocol_staff DROP FOREIGN KEY FK_1349C6BACCD59258');
        $this->addSql('ALTER TABLE treatment_protocol_staff DROP FOREIGN KEY FK_1349C6BAD4D57CD');
        $this->addSql('ALTER TABLE treatment_protocol_steps DROP FOREIGN KEY FK_65053F5ACCD59258');
        $this->addSql('ALTER TABLE treatment_protocols DROP FOREIGN KEY FK_76894114DDEB00C2');
        $this->addSql('ALTER TABLE treatment_protocols DROP FOREIGN KEY FK_76894114EB665C09');
        $this->addSql('DROP TABLE treatment_protocol_staff');
        $this->addSql('DROP TABLE treatment_protocol_steps');
        $this->addSql('DROP TABLE treatment_protocols');
    }
}