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

@section('content')
    <div class="max-w-3xl mx-auto mt-8 p-8 bg-white/80 backdrop-blur-lg rounded-2xl shadow-lg">

        <!-- Breadcrumbs -->
        <nav class="text-gray-600 text-sm mb-4" aria-label="Breadcrumb">
            <ol class="list-reset flex">
                <li><a href="{{ route('dashboard') }}" class="text-indigo-600 hover:underline">Home</a></li>
                <span class="mx-2">/</span>
                <li class="text-gray-900 font-semibold">Experience</li>
            </ol>
        </nav>

        <!-- Form Header -->
        <div class="flex justify-between items-center mb-6">
            <h2 class="text-2xl font-semibold text-gray-800">Add Your Experience</h2>
            <a href="{{ route('dashboard') }}"
                class="bg-gray-100 hover:bg-gray-200 text-gray-700 px-4 py-2 rounded-lg border">← Go Back</a>
        </div>

        <!-- Success Message -->
        @if (session('success'))
            <div class="bg-green-50 text-green-800 p-3 rounded mb-6 text-center font-medium">
                {{ session('success') }}
            </div>
        @endif

        <!-- Form Start -->
        <form action="{{ route('experience.store') }}" method="POST" enctype="multipart/form-data">
            @csrf

            <div id="experience-container">
                @php
                    $savedExperiences = collect($experiences ?? []);
                    if ($savedExperiences->isEmpty()) {
                        $savedExperiences = [null];
                    }
                @endphp

                @foreach ($savedExperiences as $index => $exp)
                    <div class="experience-item mb-8 p-6 border rounded-xl bg-white shadow-sm">

                        <!-- Job Title -->
                        <div class="mb-3">
                            <label class="block text-gray-700 font-medium">Job Title</label>
                            <input type="text" name="job_title" class="w-full border p-3 rounded-lg"
                                value="{{ old('job_title.' . $index, $exp->job_title ?? '') }}">
                        </div>

                        <!-- Company -->
                        <div class="mb-3">
                            <label class="block text-gray-700 font-medium">Company Name</label>
                            <input type="text" name="company_name" class="w-full border p-3 rounded-lg"
                                value="{{ old('company_name.' . $index, $exp->company_name ?? '') }}">
                        </div>

                        <!-- Dates -->
                        <div class="grid grid-cols-2 gap-4 mb-3">
                            <div>
                                <label class="block text-gray-700 font-medium">Start Date</label>
                                <input type="date" name="start_date" class="w-full border p-3 rounded-lg"
                                    value="{{ old('start_date.' . $index, $exp->start_date ?? '') }}">
                            </div>
                            <div>
                                <label class="block text-gray-700 font-medium">End Date</label>
                                <input type="date" name="end_date" class="w-full border p-3 rounded-lg"
                                    value="{{ old('end_date.' . $index, $exp->end_date ?? '') }}">
                            </div>
                        </div>

                        <!-- Responsibilities -->
                        <div class="mb-3">
                            <label class="block text-gray-700 font-medium">Responsibilities</label>
                            <textarea name="responsibilities" rows="3" class="w-full border p-3 rounded-lg">{{ old('responsibilities.' . $index, $exp->responsibilities ?? '') }}</textarea>
                        </div>

                        <!-- Certificate Upload -->
                        <div class="mb-3">
                            <label class="block text-gray-700 font-medium">Experience Certificate (Optional)</label>
                            <br>
                            {{-- <input type="file" name="certificate[]" id="exp_file_{{ $index }}" class="hidden" accept="image/*,application/pdf"> --}}
                            <input type="file" name="certificate" id="exp_file_{{ $index }}" class="hidden"
                                accept="image/*,application/pdf">
                            <label for="exp_file_{{ $index }}"
                                class="cursor-pointer bg-indigo-500 text-white px-5 py-2 rounded-lg">Choose File</label>
                            <span id="exp-file-name-{{ $index }}" class="ml-3 text-gray-600">
                                {{ isset($exp->certificate) ? basename($exp->certificate) : '' }}
                            </span>

                            @if (isset($exp->certificate))
                                <img id="exp-preview-{{ $index }}"
                                    src="{{ asset('storage/' . $exp->certificate) }}" class="mt-3 h-24 rounded-lg border">
                            @else
                                <img id="exp-preview-{{ $index }}" class="hidden mt-3 h-24 rounded-lg border" />
                            @endif
                        </div>

                        <!-- Remove Button -->
                        <div class="text-right">
                            <button type="button"
                                class="remove-exp bg-red-500 text-white px-4 py-2 rounded-lg hover:bg-red-600">
                                Remove
                            </button>
                        </div>

                    </div>
                @endforeach
            </div>

            <!-- Add More Button -->
            <div class="text-center mb-4">
                <button type="button" id="add-experience"
                    class="bg-indigo-500 text-white px-6 py-2 rounded-lg hover:bg-indigo-600">
                    + Add More Experience
                </button>
            </div>

            <!-- Submit -->
            <button type="submit" class="w-full bg-indigo-600 text-white py-3 rounded-lg hover:bg-indigo-700">
                Save Experience
            </button>
        </form>
    </div>

    <!-- JS for Dynamic Experience & File Preview -->
    <script>
        let expCount = {{ collect($savedExperiences)->count() }};

        // Add More Experience
        document.getElementById('add-experience').addEventListener('click', function() {
            const container = document.getElementById('experience-container');
            const newItem = document.querySelector('.experience-item').cloneNode(true);

            newItem.querySelectorAll("input, textarea").forEach(i => i.value = "");

            const fileInput = newItem.querySelector('input[type="file"]');
            const fileLabel = newItem.querySelector('label[for]');
            const fileName = newItem.querySelector('span[id^="exp-file-name"]');
            const preview = newItem.querySelector('img[id^="exp-preview"]');

            fileInput.id = `exp_file_${expCount}`;
            fileLabel.setAttribute("for", `exp_file_${expCount}`);
            fileName.id = `exp-file-name-${expCount}`;
            preview.id = `exp-preview-${expCount}`;
            fileName.textContent = "";
            preview.classList.add('hidden');
            preview.src = "";

            container.appendChild(newItem);
            attachPreview(fileInput, fileName, preview);

            expCount++;
        });

        // Remove Experience
        document.addEventListener('click', function(e) {
            if (e.target.classList.contains('remove-exp')) {
                const items = document.querySelectorAll('.experience-item');
                if (items.length > 1) {
                    e.target.closest('.experience-item').remove();
                } else {
                    alert("At least one experience section is required!");
                }
            }
        });

        // File Preview Function
        function attachPreview(input, nameSpan, previewImg) {
            input.addEventListener('change', function() {
                if (this.files.length > 0) {
                    nameSpan.textContent = this.files[0].name;
                    const reader = new FileReader();
                    reader.onload = function(e) {
                        previewImg.src = e.target.result;
                        previewImg.classList.remove('hidden');
                    };
                    reader.readAsDataURL(this.files[0]);
                } else {
                    nameSpan.textContent = '';
                    previewImg.src = '';
                    previewImg.classList.add('hidden');
                }
            });
        }

        // Attach preview to existing items
        @foreach ($savedExperiences as $index => $exp)
            attachPreview(
                document.getElementById('exp_file_{{ $index }}'),
                document.getElementById('exp-file-name-{{ $index }}'),
                document.getElementById('exp-preview-{{ $index }}')
            );
        @endforeach
    </script>
@endsection