@extends('Admin.layout')
@section('content')

    <div class="row align-items-center justify-content-between mb-3 mt-3">
        <div class="col-auto">
            <h5>
                <button type="button" class="btn btn-icon bg-white me-2" style="box-shadow: 0px 9px 12px -2px #66328E1F;">
                    <a href="{{ route('diet_plan_list') }}">
                        <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none"
                            stroke="#000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                            <path stroke="none" d="M0 0h24v24H0z" fill="none" />
                            <path d="M15 6l-6 6l6 6" />
                        </svg>
                    </a>
                </button>
                Edit Diet Plan
            </h5>
        </div>
    </div>

    <div class="card p-5">
        <form id="dietPlanForm" action="{{ route('diet_plan_update') }}" method="POST" enctype="multipart/form-data">
            @csrf
            <input type="hidden" name="id" value="{{ $plan->id }}">
            <div class="row">

                <div class="col-lg-6 mb-3">
                    <label class="form-label">Plan Name</label>
                    <input type="text" class="form-control @error('plan_name') is-invalid @enderror" name="plan_name"
                        value="{{ old('plan_name', $plan->plan_name) }}" placeholder="e.g. Weight Loss">
                    @error('plan_name')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-6 mb-3">
                    <label class="form-label">Image <small class="text-muted">(Optional)</small></label>

                    <input type="file" class="form-control @error('image') is-invalid @enderror" name="image"
                        accept=".jpg,.jpeg,.png,.webp" onchange="previewImage(this)">

                    {{-- Hidden fields --}}
                    <input type="hidden" name="temp_image" id="tempImagePath" value="{{ old('temp_image') }}">
                    <input type="hidden" name="image_removed" id="imageRemoved" value="0"> {{-- ← add this --}}

                    @error('image')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror

                    <div id="previewWrapper"
                        class="{{ $plan->image || old('temp_image') ? '' : 'd-none' }} position-relative d-inline-block mt-2">
                        <img id="imagePreview"
                            src="{{ old('temp_image') ? asset(old('temp_image')) : ($plan->image && file_exists(public_path($plan->image)) ? asset($plan->image) : '') }}"
                            class="rounded" style="width:100px; height:100px; object-fit:cover;">
                        <button type="button" onclick="removeImagePreview()"
                            class="position-absolute top-0 end-0 btn btn-danger btn-sm rounded-circle"
                            style="width:22px; height:22px; padding:0; font-size:11px; line-height:1; z-index:10;">
                            ✕
                        </button>
                    </div>
                </div>

                <div class="col-lg-12 mb-3">
                    <label class="form-label">Description <small class="text-muted">(Optional)</small></label>
                    <textarea rows="3" class="form-control @error('description') is-invalid @enderror" name="description"
                        placeholder="Enter plan description">{{ old('description', $plan->description) }}</textarea>
                    @error('description')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

            </div>

            <div class="form-actions mt-4 d-flex gap-3 justify-content-center">
                {{-- <button type="reset" class="btn btn-label-secondary">Discard</button> --}}
                <button type="submit" id="finalSubmit" class="btn btn-primary">Update</button>
            </div>
        </form>
    </div>

    <script>
        function previewImage(input) {
            const file = input.files[0];
            if (!file) return;
            const reader = new FileReader();
            reader.onload = function (e) {
                document.getElementById('imagePreview').src = e.target.result;
                document.getElementById('previewWrapper').classList.remove('d-none');
            };
            reader.readAsDataURL(file);
        }

        function removeImagePreview() {
            document.querySelector('input[name="image"]').value = '';
            document.getElementById('imagePreview').src = '';
            document.getElementById('tempImagePath').value = '';
                document.getElementById('imageRemoved').value       = '1'; 

            document.getElementById('previewWrapper').classList.add('d-none');
        }

        document.getElementById('finalSubmit').addEventListener('click', function () {
            this.disabled = true;
            this.innerText = 'Processing...';
            document.getElementById('dietPlanForm').submit();
        });
    </script>

@endsection