<?php

namespace App\Http\Controllers;

use App\Models\diagnoses;
use App\Models\disease;
use App\Models\rule;
use App\Models\symptom;
use Illuminate\Http\Request;

class DiagnosedController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return view('diagnosed.diagnosed');
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    public function diagnose(Request $request)
{
    $selectedSymptomIds = $request->input('G', []);

    $selectedSymptoms = Symptom::whereIn('id', $selectedSymptomIds)->get();

    $results = [];

    // Get only diseases with selected symptoms
    $diseases = Disease::whereHas('rules', function ($query) use ($selectedSymptomIds) {
        $query->whereIn('symptom_id', $selectedSymptomIds);
    })->get();

    foreach ($diseases as $disease) {
        $diseaseSymptoms = $disease->rules()->pluck('symptom_id')->toArray();
        $matchedSymptoms = array_intersect($diseaseSymptoms, $selectedSymptomIds);

        $diseaseSymptomsCount = count($diseaseSymptoms);

        if ($diseaseSymptomsCount > 0) {
            $probability = (count($matchedSymptoms) / $diseaseSymptomsCount) * 100;

            $results[] = [
                'disease' => $disease->name,
                'probability' => $probability,
                'solution' => $disease->solution,
                'image_path' => $disease->image_path
            ];

            Diagnoses::create([
                'disease_name' => $disease->name,
                'probability' => $probability,
                'selected_symptoms' => $selectedSymptomIds,
            ]);
        }
    }

    usort($results, function ($a, $b) {
        return $b['probability'] <=> $a['probability'];
    });

    return view('diagnosed.diagnosed', [
        'results' => $results,
        'selectedSymptoms' => $selectedSymptoms,
    ]);
}


    public function showResult()
    {
        return view('diagnosed.diagnosed');
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}