<?php

namespace App\Database\Migrations;

use CodeIgniter\Database\Migration;
use CodeIgniter\Database\RawSql;

class CreateExamDraftSubmissions extends Migration
{
    public function up()
    {
        $this->forge->addField([
            'id' => [
                'type'           => 'INT',
                'unsigned'       => true,
                'auto_increment' => true,
            ],
            'teacher_id' => [
                'type'     => 'INT',
                'unsigned' => true,
                'null'     => false,
            ],
            'class_section_id' => [
                'type'     => 'INT',
                'unsigned' => true,
                'null'     => false,
            ],
            'semester' => [
                'type'       => 'VARCHAR',
                'constraint' => 32,
                'null'       => false,
            ],
            'school_year' => [
                'type'       => 'VARCHAR',
                'constraint' => 32,
                'null'       => false,
            ],
            'exam_type' => [
                'type'       => 'VARCHAR',
                'constraint' => 64,
                'null'       => true,
            ],
            'draft_title' => [
                'type'       => 'VARCHAR',
                'constraint' => 191,
                'null'       => false,
            ],
            'description' => [
                'type' => 'TEXT',
                'null' => true,
            ],
            'teacher_file' => [
                'type'       => 'VARCHAR',
                'constraint' => 512,
                'null'       => true,
            ],
            'teacher_filename' => [
                'type'       => 'VARCHAR',
                'constraint' => 512,
                'null'       => true,
            ],
            'status' => [
                'type'       => 'VARCHAR',
                'constraint' => 32,
                'default'    => 'pending',
            ],
            'admin_id' => [
                'type'     => 'INT',
                'unsigned' => true,
                'null'     => true,
            ],
            'admin_comments' => [
                'type' => 'TEXT',
                'null' => true,
            ],
            'reviewed_at' => [
                'type' => 'DATETIME',
                'null' => true,
            ],
            'final_file' => [
                'type'       => 'VARCHAR',
                'constraint' => 512,
                'null'       => true,
            ],
            'final_filename' => [
                'type'       => 'VARCHAR',
                'constraint' => 512,
                'null'       => true,
            ],
            'created_at' => [
                'type'     => 'DATETIME',
                'null'     => false,
                'default'  => new RawSql('CURRENT_TIMESTAMP'),
            ],
            'updated_at' => [
                'type' => 'DATETIME',
                'null' => true,
            ],
        ]);

        $this->forge->addKey('id', true);
        $this->forge->addKey(['teacher_id', 'class_section_id']);
        $this->forge->createTable('exam_drafts');
    }

    public function down()
    {
        $this->forge->dropTable('exam_drafts');
    }
}
