@extends('layouts.panel')

@section('title', 'Create User')
@section('page-title', '')

@section('content')
    <div class="card">
        <div class="card-header d-flex justify-content-between align-items-center">
            <h5 class="mb-0">Create New User</h5>
            <a href="{{ route('panel.users.index') }}" class="btn btn-sm btn-outline-secondary">Back to Users</a>
        </div>

        <div class="card-body">
            @if($errors->any())
                <div class="alert alert-danger">
                    <ul class="mb-0">
                        @foreach($errors->all() as $error)
                            <li>{{ $error }}</li>
                        @endforeach
                    </ul>
                </div>
            @endif

            <form action="{{ route('panel.users.store') }}" method="POST" class="row g-3">
                @csrf

                <div class="col-md-6">
                    <label for="name" class="form-label">Name</label>
                    <input type="text"
                           class="form-control @error('name') is-invalid @enderror"
                           id="name"
                           name="name"
                           value="{{ old('name') }}"
                           required>
                </div>

                <div class="col-md-6">
                    <label for="surname" class="form-label">Surname</label>
                    <input type="text"
                           class="form-control @error('surname') is-invalid @enderror"
                           id="surname"
                           name="surname"
                           value="{{ old('surname') }}"
                           required>
                </div>

                <div class="col-md-6">
                    <label for="email" class="form-label">Email</label>
                    <input type="email"
                           class="form-control @error('email') is-invalid @enderror"
                           id="email"
                           name="email"
                           value="{{ old('email') }}"
                           required>
                </div>

                <div class="col-md-6">
                    <label for="role_id" class="form-label">Role</label>
                    <select id="role_id"
                            name="role_id"
                            class="form-select @error('role_id') is-invalid @enderror"
                            required>
                        <option value="">Select a role</option>
                        @foreach($roles as $role)
                            <option value="{{ $role->id }}" {{ old('role_id') == $role->id ? 'selected' : '' }}>
                                {{ $role->label ?? ucfirst($role->name) }}
                            </option>
                        @endforeach
                    </select>
                </div>

                {{-- Paper fields (non-listener) --}}
                <div id="paperFields" class="col-12 row g-3 {{ old('role_id') && optional($roles->firstWhere('id', old('role_id')))->name === \App\Models\Role::LISTENER ? 'd-none' : '' }}">
                    <div class="col-md-6">
                    <label for="paper_id" class="form-label">Paper ID</label>
                    <input type="number"
                           min="1"
                           class="form-control @error('paper_id') is-invalid @enderror"
                           id="paper_id"
                           name="paper_id"
                           value="{{ old('paper_id') }}"
                           required>
                </div>

                    <div class="col-md-6">
                    <label for="paper_title" class="form-label">Paper Title</label>
                    <input type="text"
                           class="form-control @error('paper_title') is-invalid @enderror"
                           id="paper_title"
                           name="paper_title"
                           value="{{ old('paper_title') }}"
                           required>
                </div>
                </div>

                {{-- Listener fields (only when role = listener) --}}
                <div id="listenerFields" class="col-12 row g-3 {{ old('role_id') && optional($roles->firstWhere('id', old('role_id')))->name === \App\Models\Role::LISTENER ? '' : 'd-none' }}">
                    <div class="col-md-6">
                        <label for="institution" class="form-label">Institution</label>
                        <input type="text"
                               class="form-control @error('institution') is-invalid @enderror"
                               id="institution"
                               name="institution"
                               value="{{ old('institution') }}">
                    </div>
                    <div class="col-md-6">
                        <label for="phone_number" class="form-label">Phone number</label>
                        <input type="text"
                               class="form-control @error('phone_number') is-invalid @enderror"
                               id="phone_number"
                               name="phone_number"
                               value="{{ old('phone_number') }}">
                    </div>
                    <div class="col-md-12">
                        <label class="form-label d-block">Degree</label>
                        <div class="d-flex flex-wrap gap-3">
                            @foreach(\App\Models\Listener::getDegreeOptions() as $key => $label)
                                <div class="form-check">
                                    <input class="form-check-input"
                                           type="radio"
                                           name="unvan"
                                           id="unvan_{{ $key }}"
                                           value="{{ $key }}"
                                           {{ (string) old('unvan') === (string) $key ? 'checked' : '' }}>
                                    <label class="form-check-label" for="unvan_{{ $key }}">{{ $label }}</label>
                                </div>
                            @endforeach
                        </div>
                        @error('unvan')
                        <div class="text-danger small">{{ $message }}</div>
                        @enderror
                    </div>
                    <div class="col-md-12">
                        <label class="form-label d-block">Participation</label>
                        <div class="d-flex flex-wrap gap-3">
                            @foreach(\App\Models\Listener::getParticipationOptions() as $key => $label)
                                <div class="form-check">
                                    <input class="form-check-input"
                                           type="radio"
                                           name="participation_type"
                                           id="participation_{{ $key }}"
                                           value="{{ $key }}"
                                           {{ (string) old('participation_type') === (string) $key ? 'checked' : '' }}>
                                    <label class="form-check-label" for="participation_{{ $key }}">{{ $label }}</label>
                                </div>
                            @endforeach
                        </div>
                        @error('participation_type')
                        <div class="text-danger small">{{ $message }}</div>
                        @enderror
                    </div>
                    <div class="col-md-12">
                        <label for="note" class="form-label">Note</label>
                        <textarea name="note" id="note" rows="3" class="form-control">{{ old('note') }}</textarea>
                    </div>
                </div>

                <div class="col-12">
                    <button type="submit" class="btn btn-primary">Create User</button>
                </div>
            </form>
        </div>
    </div>

    <script>
        document.addEventListener('DOMContentLoaded', function () {
            const roleSelect = document.getElementById('role_id');
            const paperFields = document.getElementById('paperFields');
            const listenerFields = document.getElementById('listenerFields');
            const paperId = document.getElementById('paper_id');
            const paperTitle = document.getElementById('paper_title');
            const institution = document.getElementById('institution');
            const phoneNumber = document.getElementById('phone_number');

            function setRequired(el, required) {
                if (!el) return;
                el.required = !!required;
            }

            function toggleByRole() {
                const selected = roleSelect.options[roleSelect.selectedIndex];
                const selectedText = (selected?.text || '').toLowerCase();
                const selectedValue = roleSelect.value;
                const isListener = selectedText.includes('listener') || selectedValue === '{{ optional($roles->firstWhere("name", \App\Models\Role::LISTENER))->id }}';

                if (isListener) {
                    paperFields.classList.add('d-none');
                    listenerFields.classList.remove('d-none');
                    setRequired(paperId, false);
                    setRequired(paperTitle, false);
                    setRequired(institution, true);
                    setRequired(phoneNumber, true);
                    document.querySelectorAll('input[name="unvan"]').forEach(r => r.required = true);
                    document.querySelectorAll('input[name="participation_type"]').forEach(r => r.required = true);
                } else {
                    paperFields.classList.remove('d-none');
                    listenerFields.classList.add('d-none');
                    setRequired(paperId, true);
                    setRequired(paperTitle, true);
                    setRequired(institution, false);
                    setRequired(phoneNumber, false);
                    document.querySelectorAll('input[name="unvan"]').forEach(r => r.required = false);
                    document.querySelectorAll('input[name="participation_type"]').forEach(r => r.required = false);
                }
            }

            roleSelect.addEventListener('change', toggleByRole);
            toggleByRole();
        });
    </script>
@endsection