{{-- resources/views/ats/upload.blade.php --}}
@extends('layouts.app')

@section('title', 'Upload Resume - ATS Score Checker')

@section('content')
<div class="container py-5">
    <div class="row justify-content-center">
        <div class="col-lg-8">
            <div class="card">
                <div class="card-body p-5">
                    <div class="text-center mb-4">
                        <h2 class="fw-bold">Upload Your Resume</h2>
                        <p class="text-muted">Upload your PDF resume to get instant ATS analysis and recommendations</p>
                    </div>

                    <form id="resumeUploadForm" enctype="multipart/form-data">
                        @csrf
                        <div class="upload-area" id="uploadArea">
                            <div class="upload-content">
                                <i class="fas fa-cloud-upload-alt display-1 text-muted mb-3"></i>
                                <h4>Drag & Drop your resume here</h4>
                                <p class="text-muted">or click to browse files</p>
                                <p class="small text-muted">Supported format: PDF (Max 5MB)</p>
                                <input type="file" id="resumeFile" name="resume" accept=".pdf" style="display: none;">
                                <button type="button" class="btn btn-primary" onclick="document.getElementById('resumeFile').click()">
                                    Choose File
                                </button>
                            </div>
                        </div>

                        <div id="fileInfo" class="mt-3" style="display: none;">
                            <div class="alert alert-info">
                                <strong>Selected File:</strong> <span id="fileName"></span>
                                <button type="button" class="btn-close float-end" onclick="clearFile()"></button>
                            </div>
                        </div>

                        <div class="row mt-4">
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="candidateName" class="form-label">Candidate Name (Optional)</label>
                                    <input type="text" class="form-control" id="candidateName" name="candidate_name">
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="email" class="form-label">Email (Optional)</label>
                                    <input type="email" class="form-control" id="email" name="email">
                                </div>
                            </div>
                        </div>

                        <div class="text-center">
                            <button type="submit" class="btn btn-primary btn-lg" disabled id="analyzeBtn">
                                <i class="fas fa-brain me-2"></i>
                                Analyze Resume
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
document.addEventListener('DOMContentLoaded', function() {
    const uploadArea = document.getElementById('uploadArea');
    const fileInput = document.getElementById('resumeFile');
    const fileInfo = document.getElementById('fileInfo');
    const fileName = document.getElementById('fileName');
    const analyzeBtn = document.getElementById('analyzeBtn');
    const form = document.getElementById('resumeUploadForm');

    // Drag and drop functionality
    uploadArea.addEventListener('dragover', function(e) {
        e.preventDefault();
        uploadArea.classList.add('dragover');
    });

    uploadArea.addEventListener('dragleave', function(e) {
        e.preventDefault();
        uploadArea.classList.remove('dragover');
    });

    uploadArea.addEventListener('drop', function(e) {
        e.preventDefault();
        uploadArea.classList.remove('dragover');

        const files = e.dataTransfer.files;
        if (files.length > 0) {
            handleFile(files[0]);
        }
    });

    uploadArea.addEventListener('click', function() {
        fileInput.click();
    });

    fileInput.addEventListener('change', function() {
        if (this.files.length > 0) {
            handleFile(this.files[0]);
        }
    });

    function handleFile(file) {
        // Validate file type
        if (file.type !== 'application/pdf') {
            showToast('Please select a PDF file only', 'danger');
            return;
        }

        // Validate file size (5MB)
        if (file.size > 5 * 1024 * 1024) {
            showToast('File size must be less than 5MB', 'danger');
            return;
        }

        fileName.textContent = file.name;
        fileInfo.style.display = 'block';
        analyzeBtn.disabled = false;
    }

    function clearFile() {
        fileInput.value = '';
        fileInfo.style.display = 'none';
        analyzeBtn.disabled = true;
    }

    // Form submission
    form.addEventListener('submit', function(e) {
        e.preventDefault();

        if (!fileInput.files.length) {
            showToast('Please select a file to upload', 'danger');
            return;
        }

        const formData = new FormData(form);

        showLoading();

        fetch('{{ route("analyze") }}', {
            method: 'POST',
            body: formData,
            headers: {
                'X-CSRF-TOKEN': window.Laravel.csrfToken
            }
        })
        .then(response => response.json())
        .then(data => {
            hideLoading();

            if (data.success) {
                showToast(data.message, 'success');
                // Redirect to results page
                window.location.href = `/results/${data.data.id}`;
            } else {
                showToast(data.message || 'An error occurred', 'danger');
            }
        })
        .catch(error => {
            hideLoading();
            console.error('Error:', error);
            showToast('An unexpected error occurred. Please try again.', 'danger');
        });
    });

    // Make clearFile function global
    window.clearFile = clearFile;
});
</script>
@endpush