@extends('layouts.main_dashboard.app')

@section('title', app()->getLocale() === 'ar' ? 'تعديل شهادة التقدير' : 'Edit Certificate')
@section('page_heading', app()->getLocale() === 'ar' ? 'تعديل شهادة التقدير' : 'Edit Certificate')
@section('skip_page_hero', true)

@php
    $isArabic = app()->getLocale() === 'ar';
@endphp

@section('content')
<div class="space-y-6">
    <section class="rounded-xl border border-surface-200 bg-white p-6 shadow-sm dark:border-surface-800 dark:bg-surface-900">
        <div class="flex flex-col gap-5 lg:flex-row lg:items-center lg:justify-between">
            <div class="space-y-2">
                <h2 class="text-2xl font-black tracking-tight text-surface-900 dark:text-white">
                    {{ $isArabic ? 'تعديل شهادة التقدير' : 'Edit Certificate' }}
                </h2>
                <p class="max-w-2xl text-sm leading-7 text-surface-500 dark:text-surface-400">
                    {{ $isArabic ? 'تحديث بيانات الشهادة الحالية بدون عناصر إضافية غير لازمة.' : 'Update the current certificate without unnecessary extra UI.' }}
                </p>
            </div>

            <div class="flex flex-wrap gap-3">
                <a href="{{ route('admin.certificates.issued.index') }}" class="inline-flex items-center gap-2 rounded-xl border border-surface-200 bg-white px-4 py-2 text-sm font-bold text-surface-700 transition hover:bg-surface-50 dark:border-surface-700 dark:bg-surface-900 dark:text-surface-200 dark:hover:bg-surface-800">
                    <i class="fa-solid fa-arrow-right text-xs"></i>
                    <span>{{ $isArabic ? 'العودة إلى الشهادات' : 'Back to Certificates' }}</span>
                </a>
            </div>
        </div>
    </section>

    <section class="grid gap-6 xl:grid-cols-[380px_minmax(0,1fr)]">
        <form id="issueForm" action="{{ route('admin.certificates.issued.update', $certificate->id) }}" method="POST" enctype="multipart/form-data" class="rounded-xl border border-surface-200 bg-white p-6 shadow-sm dark:border-surface-800 dark:bg-surface-900">
            @csrf
            @method('PUT')
            <input type="hidden" name="certificate_html" id="certificate_html">

            <div class="space-y-5">
                <div class="rounded-xl border border-surface-200 bg-surface-50 px-4 py-4 dark:border-surface-700 dark:bg-surface-950">
                    <p class="text-xs font-bold text-surface-500 dark:text-surface-400">{{ $isArabic ? 'الطالب' : 'Student' }}</p>
                    <p class="mt-2 text-sm font-black text-surface-900 dark:text-white">{{ $certificate->student->first_name }} {{ $certificate->student->last_name }}</p>
                    <p class="mt-1 text-xs text-surface-500 dark:text-surface-400">{{ $certificate->student->registration_number }}</p>
                </div>

                <div>
                    <label class="mb-2 block text-sm font-bold text-surface-700 dark:text-surface-200">{{ $isArabic ? 'الألبوم' : 'Album' }}</label>
                    <select name="certificate_album_id" class="w-full rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-900 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100" required>
                        @foreach($albums as $item)
                            <option value="{{ $item->id }}" @selected($item->id == $certificate->certificate_album_id)>{{ $item->title }} @if($item->date) - {{ $item->date->format('Y-m-d') }} @endif</option>
                        @endforeach
                    </select>
                </div>

                <div class="space-y-3">
                    <label class="block text-sm font-bold text-surface-700 dark:text-surface-200">{{ $isArabic ? 'طريقة التحديث' : 'Method' }}</label>
                    <label class="flex cursor-pointer items-center gap-3 rounded-xl border border-surface-200 bg-surface-50 px-4 py-3 dark:border-surface-700 dark:bg-surface-950">
                        <input class="h-4 w-4" type="radio" name="type" value="template" {{ $certificate->type === 'template' ? 'checked' : '' }} onchange="toggleType()">
                        <span class="text-sm font-bold text-surface-900 dark:text-white">{{ $isArabic ? 'إعادة إنشاء من قالب' : 'Regenerate from Template' }}</span>
                    </label>
                    <label class="flex cursor-pointer items-center gap-3 rounded-xl border border-surface-200 bg-surface-50 px-4 py-3 dark:border-surface-700 dark:bg-surface-950">
                        <input class="h-4 w-4" type="radio" name="type" value="upload" {{ $certificate->type === 'upload' ? 'checked' : '' }} onchange="toggleType()">
                        <span class="text-sm font-bold text-surface-900 dark:text-white">{{ $isArabic ? 'رفع ملف PDF' : 'Upload PDF' }}</span>
                    </label>
                </div>

                <div id="template_section" class="{{ $certificate->type === 'template' ? '' : 'hidden' }} space-y-4">
                    <div>
                        <label class="mb-2 block text-sm font-bold text-surface-700 dark:text-surface-200">{{ $isArabic ? 'القالب' : 'Template' }}</label>
                        <select id="template_select" class="w-full rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-900 outline-none transition focus:border-brand-400 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100" onchange="loadTemplate()">
                            <option value="">{{ $isArabic ? 'اختر قالباً' : 'Select template' }}</option>
                            @foreach($templates as $temp)
                                <option value="{{ $temp }}">{{ ucfirst(str_replace('_', ' ', $temp)) }}</option>
                            @endforeach
                        </select>
                    </div>
                </div>

                <div id="upload_section" class="{{ $certificate->type === 'upload' ? '' : 'hidden' }} space-y-3">
                    <a href="{{ $certificate->file_url }}" target="_blank" class="inline-flex items-center gap-2 rounded-xl border border-surface-200 px-4 py-2.5 text-sm font-bold text-surface-700 transition hover:border-brand-300 hover:text-brand-600 dark:border-surface-700 dark:text-surface-200">
                        <i class="fa-solid fa-file-pdf"></i>
                        <span>{{ $isArabic ? 'عرض الملف الحالي' : 'View Current File' }}</span>
                    </a>
                    <input type="file" name="file" id="pdf_file_input" class="block w-full rounded-xl border border-surface-200 bg-white px-4 py-3 text-sm text-surface-900 dark:border-surface-700 dark:bg-surface-950 dark:text-surface-100" accept=".pdf">
                </div>

                <button type="submit" class="inline-flex w-full items-center justify-center gap-2 rounded-xl bg-brand-600 px-4 py-2 text-sm font-bold text-white transition hover:bg-brand-700">
                    <i class="fa-solid fa-floppy-disk"></i>
                    <span>{{ $isArabic ? 'حفظ التعديلات' : 'Save Changes' }}</span>
                </button>
            </div>
        </form>

        <section class="overflow-hidden rounded-xl border border-surface-200 bg-white shadow-sm dark:border-surface-800 dark:bg-surface-900">
            <div class="border-b border-surface-200 bg-surface-50/80 px-6 py-5 dark:border-surface-800 dark:bg-surface-800/30">
                <h2 class="text-lg font-black text-surface-900 dark:text-white">{{ $isArabic ? 'المعاينة' : 'Preview' }}</h2>
            </div>
            <div class="overflow-auto bg-surface-100 p-6 dark:bg-surface-950/60">
                <div id="preview_container" class="mx-auto min-h-[520px] w-full max-w-[1120px] overflow-hidden rounded-xl bg-white shadow-sm" style="transform: scale(0.72); transform-origin: top center;">
                    <div class="flex min-h-[520px] items-center justify-center text-sm font-bold text-surface-400">
                        {{ $certificate->type === 'upload' ? ($isArabic ? 'جاري تحميل الملف الحالي' : 'Loading current file') : ($isArabic ? 'اختر قالباً لإعادة الإنشاء' : 'Choose a template to regenerate') }}
                    </div>
                </div>
            </div>
        </section>
    </section>
</div>
@endsection

@section('scripts')
<script>
    $(function () {
        const currentType = @json($certificate->type);
        const currentFileUrl = @json($certificate->file_url);

        if (currentType === 'upload') {
            $('#preview_container').html('<iframe src="' + currentFileUrl + '" width="100%" height="980" style="border:none;"></iframe>');
            $('#preview_container').css('transform', 'scale(1)');
        }

        $('#pdf_file_input').on('change', function (e) {
            const file = e.target.files[0];
            if (file && file.type === 'application/pdf') {
                const fileURL = URL.createObjectURL(file);
                $('#preview_container').html('<iframe src="' + fileURL + '" width="100%" height="980" style="border:none;"></iframe>');
                $('#preview_container').css('transform', 'scale(1)');
            }
        });

        $('#issueForm').on('submit', function () {
            if ($('input[name="type"]:checked').val() === 'template') {
                $('#certificate_html').val($('#preview_container').html());
            }
        });
    });

    function toggleType() {
        const currentType = @json($certificate->type);
        const currentFileUrl = @json($certificate->file_url);

        if ($('input[name="type"]:checked').val() === 'upload') {
            $('#upload_section').removeClass('hidden');
            $('#template_section').addClass('hidden');

            if (currentType === 'upload') {
                $('#preview_container').html('<iframe src="' + currentFileUrl + '" width="100%" height="980" style="border:none;"></iframe>');
                $('#preview_container').css('transform', 'scale(1)');
            }
        } else {
            $('#upload_section').addClass('hidden');
            $('#template_section').removeClass('hidden');
            $('#preview_container').html('<div class="flex min-h-[520px] items-center justify-center text-sm font-bold text-surface-400">{{ $isArabic ? 'اختر قالباً لإعادة الإنشاء' : 'Choose a template to regenerate' }}</div>');
            $('#preview_container').css('transform', 'scale(0.72)');
        }
    }

    function loadTemplate() {
        const template = $('#template_select').val();
        if (!template) return;

        $.ajax({
            url: '{{ route("admin.certificates.render_template") }}',
            type: 'POST',
            data: { _token: '{{ csrf_token() }}', template: template },
            success: function (response) {
                $('#preview_container').html(response.html);
                $('#preview_container').attr('contenteditable', 'true');
                $('#student_name_placeholder').text(@json($certificate->student->first_name . ' ' . $certificate->student->last_name));
            }
        });
    }
</script>
@endsection