<?php

namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests\LambdaRequest;
use DB;

class SessionController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
        $this->_service = 'events';
        $this->_module = 'session';
        $this->_viewname = 'session';
        $this->_title = 'Session';
        $this->_base_url = '/session';
        $this->_listtype = 'list';
    }

    protected function get_list_fields(){
        return [
            'actions' => ['title' => 'Actions', 'buttons' => [ 'edit', 'delete' ] ],
            'title' => ['title' => 'Session Title', 'type' => 'text'],
            'session_type' => ['title' => 'Type', 'type' => 'select'],
            'track_id' => ['title' => 'Track', 'type' => 'text'],
            'presenter' => ['title' => 'Presenter', 'type' => 'text'],
            'start_time' => ['title' => 'Start Time', 'type' => 'datetime'],
            'end_time' => ['title' => 'End Time', 'type' => 'datetime'],
            'room' => ['title' => 'Room', 'type' => 'text'],
            'status' => ['title' => 'Status', 'type' => 'select'],
        ];
    }

    protected function get_form_fields($type, $values){
        $session_types = [
            'presentation' => 'Presentation',
            'workshop' => 'Workshop',
            'panel' => 'Panel Discussion',
            'networking' => 'Networking',
            'break' => 'Break',
            'lunch' => 'Lunch',
            'keynote' => 'Keynote',
            'demo' => 'Demo',
            'qna' => 'Q&A Session',
            'other' => 'Other'
        ];

        $status_options = [
            'scheduled' => 'Scheduled',
            'live' => 'Live',
            'completed' => 'Completed',
            'cancelled' => 'Cancelled'
        ];

        // Get tracks for dropdown
        $tracks = $this->getlambda('get', 'events', 'track', 'dropdown');
        $tracks_dd = [];
        if(isset($tracks->data->items)) {
            foreach($tracks->data->items as $track){
                $tracks_dd[$track->id] = $track->name;
            }
        }

        return [
            'track_id' => ['title' => 'Track', 'type' => 'select', 'required' => true, 'values' => $tracks_dd],
            'title' => ['title' => 'Session Title', 'type' => 'text', 'required' => true],
            'description' => ['title' => 'Description', 'type' => 'textarea'],
            'session_type' => ['title' => 'Session Type', 'type' => 'select', 'required' => true, 'values' => $session_types],
            'status' => ['title' => 'Status', 'type' => 'select', 'required' => true, 'values' => $status_options],
            
            'start_time' => ['title' => 'Start Time', 'type' => 'datetime', 'required' => true],
            'end_time' => ['title' => 'End Time', 'type' => 'datetime', 'required' => true],
            'duration' => ['title' => 'Duration (minutes)', 'type' => 'number', 'value' => 60],
            
            'presenter' => ['title' => 'Presenter Name', 'type' => 'text'],
            'presenter_title' => ['title' => 'Presenter Title', 'type' => 'text'],
            'presenter_bio' => ['title' => 'Presenter Bio', 'type' => 'textarea'],
            'presenter_avatar' => ['title' => 'Presenter Avatar', 'type' => 'image'],
            
            'max_attendees' => ['title' => 'Max Attendees', 'type' => 'number', 'value' => 0],
            'is_interactive' => ['title' => 'Interactive Session', 'type' => 'yesno', 'required' => true],
            'requires_registration' => ['title' => 'Requires Registration', 'type' => 'yesno', 'required' => true],
            'is_recorded' => ['title' => 'Record Session', 'type' => 'yesno', 'required' => true],
            
            'room' => ['title' => 'Room/Venue', 'type' => 'text'],
            'virtual_link' => ['title' => 'Virtual Link', 'type' => 'text'],
            'presentation_url' => ['title' => 'Presentation URL', 'type' => 'text'],
            
            'tags' => ['title' => 'Tags', 'type' => 'text', 'placeholder' => 'Enter tags separated by commas'],
        ];
    }

    protected function _beforesave($type, $request) {
        $data = $request->except('_token');
        
        // Handle file uploads
        if( $request->file('presenter_avatar') ) {
            $data['presenter_avatar'] = $this->_uploadMedia($request, 'presenter_avatar', 'sessions');
        }
        
        // Convert tags to array
        if(isset($data['tags']) && !empty($data['tags'])) {
            $data['tags'] = array_map('trim', explode(',', $data['tags']));
        } else {
            $data['tags'] = [];
        }
        
        // Set default values
        $data['max_attendees'] = $data['max_attendees'] ?? 0;
        $data['duration'] = $data['duration'] ?? 60;
        
        // Create presenter object
        if(isset($data['presenter']) && !empty($data['presenter'])) {
            $data['presenter'] = [
                'name' => $data['presenter'],
                'title' => $data['presenter_title'] ?? '',
                'bio' => $data['presenter_bio'] ?? '',
                'avatar' => $data['presenter_avatar'] ?? ''
            ];
        }
        
        // Remove individual presenter fields
        unset($data['presenter_title'], $data['presenter_bio'], $data['presenter_avatar']);
        
        return $data;
    }

    protected function _beforeform($type, $values) {
        if($type == 'edit' && isset($values)) {
            // Convert arrays back to comma-separated strings for form display
            if(isset($values->tags) && is_array($values->tags)) {
                $values->tags = implode(', ', $values->tags);
            }
            
            // Extract presenter details
            if(isset($values->presenter) && is_object($values->presenter)) {
                $values->presenter_name = $values->presenter->name ?? '';
                $values->presenter_title = $values->presenter->title ?? '';
                $values->presenter_bio = $values->presenter->bio ?? '';
                $values->presenter_avatar = $values->presenter->avatar ?? '';
            }
        }
        return $values;
    }
}