@extends('admin_base')

@section('title', 'Edit Post')

@section('style')
<link href="https://cdnjs.cloudflare.com/ajax/libs/summernote/0.8.20/summernote-bs4.min.css" rel="stylesheet">
<style>
.form-label { font-weight: 600; }
.required:after { content: ' *'; color: red; }
.thumbnail-preview {
    width: 100%; max-width: 300px; height: 180px; border: 2px dashed #ddd; border-radius: 8px;
    margin-bottom: 15px; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s ease;
}
.thumbnail-preview:hover { border-color: #159abe; background-color: rgba(58, 78, 229, 0.05); }
.thumbnail-preview img { width: 100%; height: 100%; object-fit: cover; }
.thumbnail-preview .upload-prompt { text-align: center; color: #6c757d; }
.thumbnail-preview .upload-prompt i { font-size: 2rem; margin-bottom: 10px; }
.tag-input {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    row-gap: 6px;
    padding: 8px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    min-height: 45px;
    background: #fff;
}
.tag {
    background-color: #e9ecef;
    border: 1px solid #dee2e6;
    border-radius: 20px;
    padding: 4px 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    margin-bottom: 6px;
}
.tag .remove-tag { color: #dc3545; cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 2px; }
.tag .remove-tag:hover { color: #bb2d3b; }
.tag-input input { border: none; outline: none; padding: 4px; flex-grow: 1; min-width: 120px; font-size: 0.9rem; }
.section-card { background-color: #ffffff; border: 1px solid #e0e0e0; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.05); margin-bottom: 20px; }
.section-card .card-header { background-color: #f8f9fa; border-bottom: 1px solid #e0e0e0; padding: 15px 20px; }
.section-card .card-body { padding: 20px; }
</style>
@endsection

@section('content')
<div class="container-fluid">
    <form id="blogForm" onsubmit="updateBlog(event)">
        <div class="row">
            <div class="col-md-8">
                <div class="section-card">
                    <div class="card-header">
                        <h5 class="mb-0">Post Content</h5>
                    </div>
                    <div class="card-body">
                        <div class="form-group mb-3">
                            <label for="title" class="form-label required">Title</label>
                            <input type="text" class="form-control" id="title" name="title" value="{{ $blog->title }}" required>
                        </div>
                        <div class="form-group mb-3">
                            <label for="content" class="form-label required">Content</label>
                            <textarea class="form-control" id="content" name="content" rows="12" required>{{ $blog->content }}</textarea>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-md-4">
                <div class="section-card">
                    <div class="card-header">
                        <h5 class="mb-0">Thumbnail</h5>
                    </div>
                    <div class="card-body">
                        <div class="thumbnail-preview" id="thumbnailClickArea">
                            <div class="upload-prompt" style="display: {{ $blog->thumbnail ? 'none' : 'block' }};">
                                <i class="fas fa-cloud-upload-alt"></i>
                                <div>Click to upload thumbnail</div>
                                <small class="text-muted">Maximum size: 2MB</small>
                            </div>
                            <img id="thumbnailPreview" src="{{ $blog->thumbnail ? asset('storage/' . $blog->thumbnail) : '' }}" style="display: {{ $blog->thumbnail ? 'block' : 'none' }};">
                        </div>
                        <input type="file" id="thumbnail" accept="image/*" style="display: none;">
                    </div>
                </div>
                <div class="section-card">
                    <div class="card-header">
                        <h5 class="mb-0">Tags</h5>
                    </div>
                    <div class="card-body">
                        <div class="tag-input" onclick="document.getElementById('tagInput').focus()">
                            <div id="tagContainer"></div>
                            <input type="text" id="tagInput" placeholder="Type and press Enter to add tags...">
                        </div>
                        <small class="text-muted">Press Enter or comma to add a tag</small>
                    </div>
                </div>
            </div>
        </div>
        <div class="row mt-4 mb-5">
            <div class="col-12 text-center">
                <button type="submit" class="sb_btn">
                    <i class="fas fa-save"></i> Update Post
                </button>
                <a href="{{ route('admin.blogs') }}" class="btn btn-secondary">
                    <i class="fas fa-times"></i> Cancel
                </a>
            </div>
        </div>
    </form>
</div>
@endsection

@section('script')
<script src="https://cdnjs.cloudflare.com/ajax/libs/summernote/0.8.20/summernote-bs4.min.js"></script>
<script>
let tags = @json($blog->tags ?? []);
let thumbnailFile = null;

// Initialize Summernote
$(function() {
    $('#content').summernote({
        height: 350,
        toolbar: [
            ['style', ['style']],
            ['font', ['bold', 'italic', 'underline', 'clear']],
            ['fontname', ['fontname']],
            ['color', ['color']],
            ['para', ['ul', 'ol', 'paragraph']],
            ['table', ['table']],
            ['insert', ['link', 'picture', 'video']],
            ['view', ['fullscreen', 'codeview', 'help']]
        ]
    });
    renderTags();
});

document.getElementById('thumbnailClickArea').addEventListener('click', function(e) {
    document.getElementById('thumbnail').click();
});
document.getElementById('thumbnail').addEventListener('change', function(e) {
    const file = e.target.files[0];
    if (file) {
        if (file.size > 2 * 1024 * 1024) {
            alert('Image size should not exceed 2MB');
            this.value = '';
            return;
        }
        thumbnailFile = file;
        const reader = new FileReader();
        reader.onload = function(e) {
            const preview = document.getElementById('thumbnailPreview');
            preview.src = e.target.result;
            preview.style.display = 'block';
            document.querySelector('.upload-prompt').style.display = 'none';
        }
        reader.readAsDataURL(file);
    }
});

const tagInput = document.getElementById('tagInput');
tagInput.addEventListener('keydown', function(e) {
    if ((e.key === 'Enter' || e.key === ',') && !e.shiftKey) {
        e.preventDefault();
        const tag = this.value.trim().toLowerCase();
        addTag(tag);
    }
});
function addTag(tag) {
    tag = tag.trim().toLowerCase();
    if (tag && !tags.includes(tag)) {
        tags.push(tag);
        renderTags();
        tagInput.value = '';
    }
}
function removeTag(index) {
    tags.splice(index, 1);
    renderTags();
}
function renderTags() {
    const container = document.getElementById('tagContainer');
    container.innerHTML = tags.map((tag, index) => `
        <div class=\"tag\">${tag}<span class=\"remove-tag\" onclick=\"removeTag(${index})\">&times;</span></div>
    `).join('');
}
function updateBlog(event) {
    event.preventDefault();
    const formData = new FormData();
    formData.append('title', document.getElementById('title').value);
    formData.append('content', $('#content').summernote('code'));
    if (thumbnailFile) formData.append('thumbnail', thumbnailFile);
    // Send tags as array
    tags.forEach(tag => formData.append('tags[]', tag));
    formData.append('_method', 'PUT');
    const submitBtn = event.target.querySelector('button[type="submit"]');
    const originalText = submitBtn.innerHTML;
    submitBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Updating...';
    submitBtn.disabled = true;
    fetch('/admin/blogs/{{ $blog->id }}', {
        method: 'POST',
        headers: { 'X-CSRF-TOKEN': '{{ csrf_token() }}' },
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            window.location.href = "{{ route('admin.blogs') }}?success=Blog post updated successfully";
        } else {
            alert(data.message || 'Error updating blog post');
            submitBtn.innerHTML = originalText;
            submitBtn.disabled = false;
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Error updating blog post');
        submitBtn.innerHTML = originalText;
        submitBtn.disabled = false;
    });
}
</script>
@endsection