@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>
            Edit Exercise
        </h5>
    </div>
</div>

<div class="card p-5">
    <form id="exerciseForm" action="{{ route('exercise_update') }}" method="POST" enctype="multipart/form-data">
        @csrf
        <input type="hidden" name="id" value="{{ $exercise->id }}">
        <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', $exercise->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', $exercise->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">(Optional)</small></label>
                <input type="text" class="form-control @error('video_url') is-invalid @enderror"
                    name="video_url"
                    value="{{ old('video_url', $exercise->video_url) }}"
                    placeholder="https://youtube.com/...">
                @error('video_url')
                    <small class="text-danger">{{ $message }}</small>
                @enderror
            </div>

            <div class="col-lg-3 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', $exercise->sets) }}">
                @error('sets')
                    <small class="text-danger">{{ $message }}</small>
                @enderror
            </div>

            <div class="col-lg-3 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', $exercise->reps) }}">
                @error('reps')
                    <small class="text-danger">{{ $message }}</small>
                @enderror
            </div>

            <div class="col-lg-3 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', $exercise->rest_seconds) }}">
                @error('rest_seconds')
                    <small class="text-danger">{{ $message }}</small>
                @enderror
            </div>

            <div class="col-lg-3 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', $exercise->calories) }}">
                @error('calories')
                    <small class="text-danger">{{ $message }}</small>
                @enderror
            </div>

            <div class="col-lg-6 mb-3">
                <label class="form-label">Thumbnail 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)">
                @error('image')
                    <small class="text-danger">{{ $message }}</small>
                @enderror

                {{-- Show existing image --}}
                @if($exercise->image && file_exists(public_path($exercise->image)))
                    <img id="imagePreview" src="{{ asset($exercise->image) }}"
                        class="mt-2 rounded" style="width:100px; height:100px; object-fit:cover;">
                @else
                    <img id="imagePreview" src="" class="mt-2 d-none rounded"
                        style="width:100px; height:100px; object-fit:cover;">
                @endif
            </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">{{ old('how_to', $exercise->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">
            {{-- <a href="{{ route('exercise_list') }}" class="btn btn-label-secondary">
                Discard
            </a> --}}
            <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) {
            const preview = document.getElementById('imagePreview');
            preview.src = e.target.result;
            preview.classList.remove('d-none');
        };
        reader.readAsDataURL(file);
    }

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

@endsection