<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Migration_Add_technician_attachment_permission extends CI_Migration
{
    public function up()
    {
        if (!$this->db->table_exists('roles')) return;
        foreach ($this->db->get('roles')->result() as $role) {
            $permissions = json_decode((string) $role->permissions, true);
            if (!is_array($permissions) || isset($permissions['technician_attachment'])) continue;
            $source = $permissions['technician_equipment'] ?? ($permissions['items'] ?? array());
            if (in_array('can_view', (array) $source, true)) {
                $permissions['technician_attachment'] = array('can_view');
                $this->db->where('id', $role->id)->update('roles', array(
                    'permissions' => json_encode($permissions),
                    'updated_at' => date('Y-m-d H:i:s')
                ));
            }
        }
    }

    public function down()
    {
        throw new RuntimeException('Permission lampiran peralatan teknisi dipertahankan.');
    }
}