@extends('layouts.app')

@section('title', 'Foto importieren – NeoNail DB')

@section('content')

<div class="page-hero mb-4">
    <h1><i class="fas fa-camera me-2"></i>Foto importieren</h1>
    <p>Lade ein Foto deines Nagellacks hoch – die KI erkennt Name, Nummer und Hersteller automatisch.</p>
</div>

<div class="row justify-content-center">
    <div class="col-lg-6">
        <div class="card">
            <div class="card-body p-4">
                <div id="errorBox" class="alert alert-danger mb-3 d-none"></div>

                <div class="mb-4">
                    <label class="form-label">Foto des Nagellacks</label>

                    <div id="dropzone"
                         style="border: 2px dashed #d1d5db; border-radius: 16px; padding: 48px 20px;
                                text-align: center; cursor: pointer; transition: all .2s;"
                         onclick="document.getElementById('image').click()">
                        <div id="dropzoneContent">
                            <i class="fas fa-cloud-upload-alt" style="font-size: 2.5rem; color: #9ca3af; margin-bottom: 12px; display: block;"></i>
                            <p style="color: #6b7280; margin: 0; font-weight: 500;">Foto hierher ziehen oder klicken</p>
                            <p style="color: #9ca3af; font-size: .8rem; margin: 4px 0 0;">JPG, PNG, WebP – max. 10 MB</p>
                        </div>
                        <img id="preview" src="" alt="" style="display:none; max-height:280px; border-radius:10px; max-width:100%;">
                    </div>

                    <input type="file" id="image" name="image" accept="image/*" class="d-none">
                </div>

                {{-- Upload-Progress --}}
                <div id="progressWrap" class="d-none mb-3">
                    <div class="d-flex justify-content-between mb-1" style="font-size:.82rem; color:#6b7280;">
                        <span>Wird hochgeladen…</span>
                        <span id="progressPct">0%</span>
                    </div>
                    <div class="progress" style="height:6px; border-radius:3px;">
                        <div id="progressBar" class="progress-bar"
                             style="width:0%; background:linear-gradient(135deg,#7c3aed,#ec4899); transition:width .2s;"></div>
                    </div>
                </div>

                <button id="submitBtn" class="btn btn-primary w-100 btn-lg" onclick="startUpload()" disabled>
                    <i class="fas fa-magic me-2"></i>KI-Analyse starten
                </button>
            </div>
        </div>

        <div class="text-center mt-3">
            <a href="{{ route('nail-polish-imports.index') }}" style="color: rgba(255,255,255,.65); font-size:.85rem;">
                <i class="fas fa-history me-1"></i>Meine Importe ansehen
            </a>
        </div>
    </div>
</div>

@endsection

@section('scripts')
<script>
const dropzone = document.getElementById('dropzone');
const input    = document.getElementById('image');
const preview  = document.getElementById('preview');
const content  = document.getElementById('dropzoneContent');
const submitBtn = document.getElementById('submitBtn');

input.addEventListener('change', e => { if (e.target.files[0]) selectFile(e.target.files[0]); });

dropzone.addEventListener('dragover', e => { e.preventDefault(); dropzone.style.borderColor = '#7c3aed'; });
dropzone.addEventListener('dragleave', () => { dropzone.style.borderColor = '#d1d5db'; });
dropzone.addEventListener('drop', e => {
    e.preventDefault();
    dropzone.style.borderColor = '#d1d5db';
    const file = e.dataTransfer.files[0];
    if (file) { input.files = e.dataTransfer.files; selectFile(file); }
});

function selectFile(file) {
    const reader = new FileReader();
    reader.onload = e => {
        preview.src = e.target.result;
        preview.style.display = 'block';
        content.style.display = 'none';
    };
    reader.readAsDataURL(file);
    submitBtn.disabled = false;
}

function startUpload() {
    const file = input.files[0];
    if (!file) return;

    submitBtn.disabled = true;
    submitBtn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Wird hochgeladen…';
    document.getElementById('progressWrap').classList.remove('d-none');
    document.getElementById('errorBox').classList.add('d-none');

    const formData = new FormData();
    formData.append('image', file);
    formData.append('_token', '{{ csrf_token() }}');

    const xhr = new XMLHttpRequest();

    xhr.upload.addEventListener('progress', e => {
        if (e.lengthComputable) {
            const pct = Math.round(e.loaded / e.total * 100);
            document.getElementById('progressBar').style.width = pct + '%';
            document.getElementById('progressPct').textContent = pct + '%';
        }
    });

    xhr.addEventListener('load', () => {
        if (xhr.status === 200) {
            try {
                const data = JSON.parse(xhr.responseText);
                if (data.redirect) { window.location.href = data.redirect; return; }
            } catch(e) {}
        }
        showError('Upload fehlgeschlagen (Status ' + xhr.status + '). Bitte erneut versuchen.');
        resetBtn();
    });

    xhr.addEventListener('error', () => {
        showError('Netzwerkfehler beim Upload. Bitte erneut versuchen.');
        resetBtn();
    });

    xhr.open('POST', '{{ route('nail-polish-imports.store') }}');
    xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
    xhr.send(formData);
}

function showError(msg) {
    const box = document.getElementById('errorBox');
    box.textContent = msg;
    box.classList.remove('d-none');
    document.getElementById('progressWrap').classList.add('d-none');
}

function resetBtn() {
    submitBtn.disabled = false;
    submitBtn.innerHTML = '<i class="fas fa-magic me-2"></i>KI-Analyse starten';
}
</script>
@endsection