@extends('landing.layout.main')

@section('content')
<div class="breadcumb-wrapper " data-bg-src="{{ asset('assets/img/breadcumb/breadcumb-bg.jpg') }}">
    <div class="container z-index-common">
        <div class="breadcumb-content">
            <h1 class="breadcumb-title">Pengenalan Buah</h1>
            <p class="breadcumb-text">Menggunakan Metode CNN (Convolutional Neural Network)</p>
            <div class="breadcumb-menu-wrap">
                <ul class="breadcumb-menu">
                    <li><a href="/">Home</a></li>
                    <li>Pengenalan Buah</li>
                </ul>
            </div>
        </div>
    </div>
</div>
<section class="space">
    <div class="container">
        <h2 class="pt-3">Pembelajaran Klasifikasi Buah</h2>
        <div class="title-divider1"></div>
        <div class="row">
            <div class="col-lg-6">
                <div class="list-style1">
                    <ul class="list-unstyled mb-0">
                        <li>Mengenali buah menggunakan Convolutional Neural Networks (CNN)</li>
                        <li>Klasifikasi secara real-time menggunakan kamera</li>
                        <li>Mengunggah gambar untuk identifikasi buah</li>
                        <li>Laporan hasil klasifikasi yang detail</li>
                    </ul>
                </div>
            </div>
            <div class="col-lg-6">
                <div class="list-style1">
                    <ul class="list-unstyled">
                        <li>Interaksi belajar dengan umpan balik langsung</li>
                        <li>Identifikasi jenis buah dengan akurasi tinggi</li>
                        <li>Antarmuka yang mudah digunakan untuk anak-anak</li>
                        <li>Dukungan pendidikan untuk usia dini</li>
                    </ul>
                </div>
            </div>
        </div>
        <h2 class="pt-3">Cara Kerja</h2>
        <div class="title-divider1"></div>
        <svg class="svg-hidden">
            <clipPath id="service-clip1" clipPathUnits="objectBoundingBox">
                <path d="M0.379,0.037 C0.459,-0.006,0.558,-0.006,0.638,0.037 L0.879,0.167 C0.959,0.21,1,0.289,1,0.375 V0.635 C1,0.721,0.959,0.8,0.879,0.843 L0.638,0.973 C0.558,1,0.459,1,0.379,0.973 L0.138,0.843 C0.058,0.8,0.008,0.721,0.008,0.635 V0.375 C0.008,0.289,0.058,0.21,0.138,0.167 L0.379,0.037">
                </path>
            </clipPath>
        </svg>
        <div class="row mb-3 pb-1 justify-content-center">
            <div class="col-md-6 col-lg-4">
                <div class="service-style2">
                    <div class="service-icon">
                        <div class="service-shape1"></div>
                        <div class="service-shape2"></div>
                        <div class="service-shape3"></div>
                        <img src="{{ asset('assets/img/icon/sr-2-1.svg') }}" alt="icon">
                    </div>
                    <div class="service-content">
                        <h3 class="service-title"><a class="text-inherit" href="class-details.html">Unggah Gambar</a>
                        </h3>
                        <p class="service-text">Pilih gambar buah dari perangkat Anda, unggah, dan dapatkan hasil
                            klasifikasi secara instan.</p>
                    </div>
                </div>
            </div>

            <div class="col-md-6 col-lg-4">
                <div class="service-style2">
                    <div class="service-icon">
                        <div class="service-shape1"></div>
                        <div class="service-shape2"></div>
                        <div class="service-shape3"></div>
                        <img src="{{ asset('assets/img/icon/sr-2-3.svg') }}" alt="icon">
                    </div>
                    <div class="service-content">
                        <h3 class="service-title"><a class="text-inherit" href="class-details.html">Gunakan Kamera</a>
                        </h3>
                        <p class="service-text">Gunakan kamera perangkat Anda untuk mendeteksi dan mengklasifikasikan
                            buah secara real-time.</p>
                    </div>
                </div>
            </div>

        </div>
        {{-- <div class="img-box4">
                <div class="img-1 mega-hover">
                    <img src="{{ asset('assets/img/about/ab-3-1.jpg') }}" alt="about">
        <a href="https://www.youtube.com/watch?v=_sI_Ps7JSEk" class="play-btn popup-video position-center"><i class="fas fa-play"></i></a>
    </div>
    </div> --}}

    <section class="form-section4 space">
        <div class="container-style4">
            <!-- Menu Buttons -->
            <div class="menu-buttons text-center mb-4">
                <button class="vs-btn form" onclick="showSection('upload-classification')">Klasifikasi Unggah
                    Gambar</button>
                <button class="vs-btn form" onclick="showSection('live-classification')">Live</button>
            </div>

            <!-- Upload Classification Form -->
            <div class="form-box4 section-content" id="upload-classification">
                <form id="predictForm" class="form-style4" enctype="multipart/form-data">
                    @csrf
                    @method('POST')
                    <div class="title-area-four form text-center">
                        <h2>Klasifikasi Buah Melalui Gambar</h2>
                        <span class="sub-title">Unggah gambar untuk klasifikasi buah</span>
                    </div>
                    <div class="row justify-content-between">
                        <div class="col-md-12 form-group text-center">
                            <button class="vs-btn form" onclick="document.getElementById('fileInput').click();" type="button">Pilih Gambar</button>
                            <input type="file" id="fileInput" name="image" style="display: none;">
                        </div>
                    </div>
                    <div id="result2" class="text-center"></div>
                </form>
            </div>

            <!-- Live Classification Form -->
            <div class="form-box4 section-content" id="live-classification" style="display: none;">
                <form class="form-style4">
                    <div class="title-area-four form text-center">
                        <h2>Klasifikasi Buah Melalui Live Camera</h2>
                        <span class="sub-title">Gunakan kamera untuk klasifikasi buah secara langsung</span>
                    </div>
                    <div class="row justify-content-between">
                        <div class="col-md-12 form-group text-center">
                            <label>Toggle Camera</label>
                            <button class="vs-btn form" id="toggleButton" type="button">Mulai Live
                                Klasifikasi</button>
                        </div>
                        <div class="col-md-12 form-group text-center">
                            <label>Pilih Kamera</label>
                            <select id="cameraSelect"></select>
                        </div>
                        <div class="col-md-12 form-group text-center">
                            <video id="video" width="100%" height="400px" autoplay></video>
                            <canvas id="canvas" width="640" height="480" style="display: none;"></canvas>
                        </div>
                        <div id="result" class="text-center"></div>
                    </div>
                </form>
            </div>
        </div>
    </section>
    <!-- End form-style4 -->
    </div>
</section>
@endsection

@section('css')
<style>
    .menu-buttons .vs-btn {
        margin: 5px;
    }

    .section-content {
        display: none;
    }

    #upload-classification {
        display: block;
    }

    video {
        border-radius: 15px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        /* border: 2px solid #ddd; */
    }

</style>
@endsection


@section('script')
<script>
    function showSection(sectionId) {
        var sections = document.querySelectorAll('.section-content');
        sections.forEach(function(section) {
            section.style.display = 'none';
        });
        document.getElementById(sectionId).style.display = 'block';
    }

</script>

<script>
    const videoElement = document.getElementById('video');
    const canvasElement = document.getElementById('canvas');
    const resultElement = document.getElementById('result');
    const toggleButton = document.getElementById('toggleButton');
    const cameraSelect = document.getElementById('cameraSelect');
    let mediaStream = null;
    let isLiveDetectionActive = false;
    let detectionInterval = null;

    async function getCameraDevices() {
        const devices = await navigator.mediaDevices.enumerateDevices();
        return devices.filter(device => device.kind === 'videoinput');
    }

    async function setupCamera(cameraId) {
        const constraints = {
            video: {
                deviceId: cameraId
                , facingMode: 'environment'
            }
        };
        mediaStream = await navigator.mediaDevices.getUserMedia(constraints);
        videoElement.srcObject = mediaStream;
    }

    async function toggleLiveDetection() {
        try {
            if (isLiveDetectionActive) {
                if (mediaStream) {
                    mediaStream.getTracks().forEach(track => track.stop());
                }
                videoElement.srcObject = null;
                resultElement.style.display = 'none';
                clearInterval(detectionInterval); // Stop detection interval
            } else {
                const cameras = await getCameraDevices();
                if (cameras.length > 0) {
                    await setupCamera(cameras[0].deviceId);
                    videoElement.srcObject = mediaStream;
                    resultElement.style.display = 'block';
                    detectionInterval = setInterval(captureAndSendFrame, 1000); // Start detection interval
                } else {
                    console.error('No cameras available.');
                }
            }
            isLiveDetectionActive = !isLiveDetectionActive;
        } catch (error) {
            console.error('Error accessing the camera: ', error);
        }
    }

    toggleButton.addEventListener('click', toggleLiveDetection);

    cameraSelect.addEventListener('change', async (event) => {
        if (mediaStream) {
            mediaStream.getTracks().forEach(track => track.stop());
        }
        await setupCamera(event.target.value);
        videoElement.srcObject = mediaStream;
    });

    async function populateCameraList() {
        const cameras = await getCameraDevices();
        cameras.forEach(camera => {
            const option = document.createElement('option');
            option.value = camera.deviceId;
            option.text = camera.label || `Camera ${camera.deviceId}`;
            cameraSelect.appendChild(option);
        });
    }

    populateCameraList().catch(console.error);

    function captureAndSendFrame() {
        if (!isLiveDetectionActive) return; // Prevent detection if not active
        const canvasContext = canvasElement.getContext('2d');
        canvasContext.drawImage(videoElement, 0, 0, canvasElement.width, canvasElement.height);
        const data = new FormData();
        data.append('image', dataURItoBlob(canvasElement.toDataURL()));

        fetch('http://127.0.0.1:5000/predict/buah', {
                method: 'POST'
                , body: data
            })
            .then(response => response.json())
            .then(data => {
                if (data.prediction) {
                    resultElement.innerHTML =
                        `<div class="alert alert-success alert-dismissible fade show" role="alert"><strong>Hasil Deteksi: </strong>${data.prediction}</div>`;
                } else {
                    resultElement.innerHTML =
                        `<div class="alert alert-danger alert-dismissible fade show" role="alert"><strong>Hasil Deteksi: </strong>Tidak dapat mendeteksi objek</div>`;
                }
            })
            .catch(error => {
                console.error('Error sending frame to API: ', error);
            });
    }

    function dataURItoBlob(dataURI) {
        const byteString = atob(dataURI.split(',')[1]);
        const mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
        const ab = new ArrayBuffer(byteString.length);
        const ia = new Uint8Array(ab);
        for (let i = 0; i < byteString.length; i++) {
            ia[i] = byteString.charCodeAt(i);
        }
        return new Blob([ab], {
            type: mimeString
        });
    }

    // Initial hide resultElement
    resultElement.style.display = 'none';

    $(document).ready(function() {
        $('#fileInput').on('change', function() {
            const fileInput = this;

            // 🛡️ Cegah kalau user cancel pilih file
            if (!fileInput.files || fileInput.files.length === 0) {
                return; // Stop di sini, tidak kirim apapun
            }

            const formData = new FormData($('#predictForm')[0]);
            const resultDiv = $('#result2');

            resultDiv.empty().append(`
            <div class="alert alert-info alert-dismissible fade show">
                <strong>Info!</strong> Sedang memproses gambar...
            </div>
        `);

            $.ajax({
                type: 'POST'
                , url: '/predict/buah'
                , data: formData
                , contentType: false
                , processData: false
                , success: function(response) {
                    const hasil = response.hasil;
                    const gambar = response.gambar;
                    resultDiv.empty();

                    if (hasil) {
                        resultDiv.append(`
                        <img height="200px" width="200px" src="{{ asset('images/buah/') }}/${gambar}" alt="" style="border-radius: 15px;">
                        <br><br>
                        <div class="alert alert-info alert-dismissible fade show" role="alert"><strong>Hasil Deteksi: </strong>${hasil}</div>
                    `);
                    } else {
                        resultDiv.append(`
                        <div class="alert alert-info alert-dismissible fade show" role="alert"><strong>Hasil Deteksi: </strong>Tidak dapat mendeteksi objek</div>
                    `);
                    }

                    fileInput.value = ''; // reset agar bisa upload file yang sama lagi nanti
                }
                , error: function(xhr, status, error) {
                    console.error(xhr.responseText);
                    resultDiv.empty().append(`
                    <div class="alert alert-danger alert-dismissible fade show" role="alert">
                        <strong>Terjadi Kesalahan:</strong> ${error}
                    </div>
                `);

                    fileInput.value = '';
                }
            });
        });
    });

</script>
@endsection