@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('exercise_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"
                            class="icon icon-tabler">
                            <path stroke="none" d="M0 0h24v24H0z" fill="none" />
                            <path d="M15 6l-6 6l6 6" />
                        </svg>
                    </a>
                </button>
                Add Exercise
            </h5>
        </div>
    </div>

    <div class="card p-5">
        <form id="exerciseForm" action="{{ route('exercise_store') }}" method="POST" enctype="multipart/form-data">
            @csrf
            <div class="row">

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Category</label>
                    <select class="form-select @error('category_id') is-invalid @enderror" name="category_id">
                        <option value="">Select Category</option>
                        @foreach($categories as $cat)
                            <option value="{{ $cat->id }}" {{ old('category_id') == $cat->id ? 'selected' : '' }}>
                                {{ $cat->category_name }}
                            </option>
                        @endforeach
                    </select>
                    @error('category_id')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Exercise Name</label>
                    <input type="text" class="form-control @error('exercise_name') is-invalid @enderror"
                        name="exercise_name" value="{{ old('exercise_name') }}" placeholder="Enter Exercise Name">
                    @error('exercise_name')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Video URL <small class="text-muted"></small></label>
                    <input type="text" class="form-control @error('video_url') is-invalid @enderror" name="video_url"
                        value="{{ old('video_url') }}" placeholder="https://youtube.com/...">
                    @error('video_url')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Sets</label>
                    <input type="number" min="1" class="form-control @error('sets') is-invalid @enderror" name="sets"
                        value="{{ old('sets', 3) }}" placeholder="e.g. 4">
                    @error('sets')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Reps</label>
                    <input type="number" min="1" class="form-control @error('reps') is-invalid @enderror" name="reps"
                        value="{{ old('reps', 10) }}" placeholder="e.g. 10">
                    @error('reps')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-4 mb-3">
                    <label class="form-label">Rest Time (seconds)</label>
                    <input type="number" min="0" class="form-control @error('rest_seconds') is-invalid @enderror"
                        name="rest_seconds" value="{{ old('rest_seconds', 60) }}" placeholder="e.g. 60">
                    @error('rest_seconds')
                        <small class="text-danger">{{ $message }}</small>
                    @enderror
                </div>

                <div class="col-lg-6 mb-3">
                    <label class="form-label">Calories (kcal)</label>
                    <input type="number" min="0" class="form-control @error('calories') is-invalid @enderror"
                        name="calories" value="{{ old('calories', 0) }}" placeholder="e.g. 420">
                    @error('calories')
                        <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)">

                    {{-- ✅ Keep temp_image across validation failures --}}
                    <input type="hidden" name="temp_image" id="tempImagePath" value="{{ old('temp_image') }}">


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

                    {{-- ✅ Show preview if old temp_image exists --}}
                    <div id="previewWrapper"
                        class="{{ old('temp_image') ? '' : 'd-none' }} position-relative d-inline-block mt-2">

                        <img id="imagePreview" src="{{ old('temp_image') ? asset(old('temp_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>

                {{-- if image reqired --}}
                {{-- <div class="col-lg-4 mb-3">
                    <label class="form-label">
                        Image <span class="text-danger">*</span>
                    </label>

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

                    <input type="hidden" name="temp_image" id="tempImagePath" value="{{ old('temp_image') }}">

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

                    @error('temp_image')
                        <small class="text-danger">Image is required.</small>
                    @enderror

                    <div id="previewWrapper"
                        class="{{ old('temp_image') ? '' : 'd-none' }} position-relative d-inline-block mt-2">

                        <img id="imagePreview" src="{{ old('temp_image') ? asset(old('temp_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">
                        How To Do
                        <small class="text-muted">(Enter each step on a new line)</small>
                    </label>
                    <textarea rows="5" class="form-control @error('how_to') is-invalid @enderror" name="how_to" id="how_to"
                        placeholder="Warm up shoulders for 5 minutes.&#10;Start with incline push-ups.&#10;Move to dumbbell presses.">{{ old('how_to') }}</textarea>
                    @error('how_to')
                        <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" onclick="window.location.reload()">
                    Discard
                </button>
                <button type="submit" id="finalSubmit" class="btn btn-primary">
                    Submit
                </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('previewWrapper').classList.add('d-none');
        }

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

@endsection