<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;

class CreateSubjectCurriculumItems extends Migration
{
    public function up()
    {
        if ($this->db->tableExists('subject_curriculum_items')) {
            return;
        }

        $this->forge->addField([
            'id' => [
                'type' => 'INT',
                'constraint' => 11,
                'unsigned' => true,
                'auto_increment' => true,
            ],
            'class_id' => [
                'type' => 'INT',
                'constraint' => 11,
                'unsigned' => true,
            ],
            'subject' => [
                'type' => 'ENUM',
                'constraint' => ['islamic', 'quran'],
                'default' => 'islamic',
            ],
            'unit_number' => [
                'type' => 'SMALLINT',
                'null' => true,
            ],
            'unit_title' => [
                'type' => 'VARCHAR',
                'constraint' => 255,
                'null' => true,
            ],
            'chapter_name' => [
                'type' => 'VARCHAR',
                'constraint' => 255,
            ],
            'created_at' => [
                'type' => 'DATETIME',
                'null' => true,
            ],
            'updated_at' => [
                'type' => 'DATETIME',
                'null' => true,
            ],
        ]);

        $this->forge->addKey('id', true);
        $this->forge->addKey(['class_id', 'subject']);
        $this->forge->createTable('subject_curriculum_items');
    }

    public function down()
    {
        $this->forge->dropTable('subject_curriculum_items', true);
    }
}