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

class Manuals extends Public_Controller
{
    function __construct()
    {
        parent::__construct();
        $this->load->library('VisitorTracking');
        $this->load->model('product_manuals_m');
    }
    public function view($slug)
    {
        if (!$slug) {
            show_404();
            return;
        }
        $this->visitortracking->trackVisitor();

        // Load language
        if ($this->session->userdata('site_lang') == 'english') {
            $this->lang->load('mainpage', 'english');
        } else {
            $this->lang->load('mainpage', 'indonesian');
        }

        // Load model
        $this->load->model('product_manuals_m');

        // Get manual by slug
        $manual = $this->product_manuals_m->get_by_slug($slug);

        // Check if manual exists
        if (!$manual) {
            show_404();
            return;
        }

        // Check if file exists
        if (!file_exists(FCPATH . $manual->file_path)) {
            $this->session->set_flashdata('error', 'Manual file not found');
            redirect('manuals');
            return;
        }

        // Increment view count
        $this->product_manuals_m->increment_view_count($manual->id);

        // Prepare meta data for SEO
        $meta_title = $manual->title . ' - Product Manual';
        $meta_description = 'View and download ' . $manual->title . ' manual guide. Version ' . $manual->version . '.';

        // Limit meta description to 160 characters
        if (strlen($meta_description) > 160) {
            $meta_description = substr($meta_description, 0, 157) . '...';
        }

        // Set page data
        $this->data['browser_title'] = $meta_title;
        $this->data['meta_description'] = $meta_description;
        $this->data['manual'] = $manual;
        $this->data['canonical_url'] = base_url('manuals/view/' . $slug);

        // Load view
        $this->load->view('manuals/index', $this->data);
    }
}