<?php

use App\Enums\ConsultationStatus;
use App\Enums\ConsultationType;
use App\Enums\PaymentStatus;
use App\Models\AdminLog;
use App\Models\Consultation;
use App\Notifications\ConsultationCancelled;
use Illuminate\Support\Facades\DB;
use Livewire\Volt\Component;
use Livewire\WithPagination;

new class extends Component
{
    use WithPagination;

    public string $search = '';
    public string $statusFilter = '';
    public string $typeFilter = '';
    public string $paymentFilter = '';
    public string $dateFrom = '';
    public string $dateTo = '';
    public string $sortBy = 'booking_date';
    public string $sortDir = 'desc';
    public int $perPage = 15;

    public function updatedSearch(): void
    {
        $this->resetPage();
    }

    public function updatedStatusFilter(): void
    {
        $this->resetPage();
    }

    public function updatedTypeFilter(): void
    {
        $this->resetPage();
    }

    public function updatedPaymentFilter(): void
    {
        $this->resetPage();
    }

    public function updatedDateFrom(): void
    {
        $this->resetPage();
    }

    public function updatedDateTo(): void
    {
        $this->resetPage();
    }

    public function updatedPerPage(): void
    {
        $this->resetPage();
    }

    public function sort(string $column): void
    {
        if ($this->sortBy === $column) {
            $this->sortDir = $this->sortDir === 'asc' ? 'desc' : 'asc';
        } else {
            $this->sortBy = $column;
            $this->sortDir = 'asc';
        }
    }

    public function clearFilters(): void
    {
        $this->search = '';
        $this->statusFilter = '';
        $this->typeFilter = '';
        $this->paymentFilter = '';
        $this->dateFrom = '';
        $this->dateTo = '';
        $this->resetPage();
    }

    public function markCompleted(int $id): void
    {
        DB::transaction(function () use ($id) {
            $consultation = Consultation::lockForUpdate()->findOrFail($id);
            $oldStatus = $consultation->status->value;

            try {
                $consultation->markAsCompleted();

                $this->logStatusChange($consultation, $oldStatus, 'completed');

                session()->flash('success', __('messages.marked_completed'));
            } catch (\InvalidArgumentException $e) {
                session()->flash('error', $e->getMessage());
            }
        });
    }

    public function markNoShow(int $id): void
    {
        DB::transaction(function () use ($id) {
            $consultation = Consultation::lockForUpdate()->findOrFail($id);
            $oldStatus = $consultation->status->value;

            try {
                $consultation->markAsNoShow();

                $this->logStatusChange($consultation, $oldStatus, 'no_show');

                session()->flash('success', __('messages.marked_no_show'));
            } catch (\InvalidArgumentException $e) {
                session()->flash('error', $e->getMessage());
            }
        });
    }

    public function cancel(int $id): void
    {
        DB::transaction(function () use ($id) {
            $consultation = Consultation::lockForUpdate()->with('user')->findOrFail($id);
            $oldStatus = $consultation->status->value;

            try {
                $consultation->cancel();

                // Notify client
                if ($consultation->user) {
                    $consultation->user->notify(new ConsultationCancelled($consultation));
                }

                $this->logStatusChange($consultation, $oldStatus, 'cancelled');

                session()->flash('success', __('messages.consultation_cancelled'));
            } catch (\InvalidArgumentException $e) {
                session()->flash('error', $e->getMessage());
            }
        });
    }

    public function markPaymentReceived(int $id): void
    {
        DB::transaction(function () use ($id) {
            $consultation = Consultation::lockForUpdate()->findOrFail($id);

            try {
                $consultation->markPaymentReceived();

                AdminLog::create([
                    'admin_id' => auth()->id(),
                    'action' => 'payment_received',
                    'target_type' => 'consultation',
                    'target_id' => $consultation->id,
                    'old_values' => ['payment_status' => 'pending'],
                    'new_values' => ['payment_status' => 'received'],
                    'ip_address' => request()->ip(),
                    'created_at' => now(),
                ]);

                session()->flash('success', __('messages.payment_marked_received'));
            } catch (\InvalidArgumentException $e) {
                session()->flash('error', $e->getMessage());
            }
        });
    }

    private function logStatusChange(Consultation $consultation, string $oldStatus, string $newStatus): void
    {
        AdminLog::create([
            'admin_id' => auth()->id(),
            'action' => 'status_change',
            'target_type' => 'consultation',
            'target_id' => $consultation->id,
            'old_values' => ['status' => $oldStatus],
            'new_values' => ['status' => $newStatus],
            'ip_address' => request()->ip(),
            'created_at' => now(),
        ]);
    }

    public function with(): array
    {
        return [
            'consultations' => Consultation::query()
                ->with('user:id,full_name,email,phone,user_type')
                ->when($this->search, fn ($q) => $q->whereHas('user', fn ($uq) =>
                    $uq->where('full_name', 'like', "%{$this->search}%")
                       ->orWhere('email', 'like', "%{$this->search}%")
                ))
                ->when($this->statusFilter, fn ($q) => $q->where('status', $this->statusFilter))
                ->when($this->typeFilter, fn ($q) => $q->where('consultation_type', $this->typeFilter))
                ->when($this->paymentFilter, fn ($q) => $q->where('payment_status', $this->paymentFilter))
                ->when($this->dateFrom, fn ($q) => $q->where('booking_date', '>=', $this->dateFrom))
                ->when($this->dateTo, fn ($q) => $q->where('booking_date', '<=', $this->dateTo))
                ->orderBy($this->sortBy, $this->sortDir)
                ->paginate($this->perPage),
            'statuses' => ConsultationStatus::cases(),
            'types' => ConsultationType::cases(),
            'paymentStatuses' => PaymentStatus::cases(),
        ];
    }
}; ?>

<div class="max-w-7xl mx-auto">
    <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-4 mb-6">
        <div>
            <flux:heading size="xl">{{ __('admin.consultations') }}</flux:heading>
            <p class="text-sm text-zinc-500 mt-1">{{ __('admin.consultations_description') }}</p>
        </div>
    </div>

    @if(session('success'))
        <flux:callout variant="success" class="mb-6">
            {{ session('success') }}
        </flux:callout>
    @endif

    @if(session('error'))
        <flux:callout variant="danger" class="mb-6">
            {{ session('error') }}
        </flux:callout>
    @endif

    <!-- Filters -->
    <div class="bg-white rounded-lg p-4 border border-zinc-200 mb-6">
        <div class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-4">
            <flux:field>
                <flux:input
                    wire:model.live.debounce.300ms="search"
                    placeholder="{{ __('admin.search_clients') }}"
                    icon="magnifying-glass"
                />
            </flux:field>

            <flux:field>
                <flux:select wire:model.live="statusFilter">
                    <option value="">{{ __('admin.all_statuses') }}</option>
                    @foreach($statuses as $status)
                        <option value="{{ $status->value }}">{{ $status->label() }}</option>
                    @endforeach
                </flux:select>
            </flux:field>

            <flux:field>
                <flux:select wire:model.live="typeFilter">
                    <option value="">{{ __('admin.all_types') }}</option>
                    @foreach($types as $type)
                        <option value="{{ $type->value }}">{{ $type->label() }}</option>
                    @endforeach
                </flux:select>
            </flux:field>

            <flux:field>
                <flux:select wire:model.live="paymentFilter">
                    <option value="">{{ __('admin.all_payments') }}</option>
                    @foreach($paymentStatuses as $ps)
                        <option value="{{ $ps->value }}">{{ $ps->label() }}</option>
                    @endforeach
                </flux:select>
            </flux:field>
        </div>

        <div class="flex flex-col sm:flex-row gap-4 items-end">
            <flux:field class="flex-1">
                <flux:label>{{ __('admin.date_from') }}</flux:label>
                <flux:input type="date" wire:model.live="dateFrom" />
            </flux:field>

            <flux:field class="flex-1">
                <flux:label>{{ __('admin.date_to') }}</flux:label>
                <flux:input type="date" wire:model.live="dateTo" />
            </flux:field>

            <flux:field>
                <flux:label>{{ __('admin.per_page') }}</flux:label>
                <flux:select wire:model.live="perPage">
                    <option value="15">15</option>
                    <option value="25">25</option>
                    <option value="50">50</option>
                </flux:select>
            </flux:field>

            @if($search || $statusFilter || $typeFilter || $paymentFilter || $dateFrom || $dateTo)
                <flux:button wire:click="clearFilters" variant="outline">
                    {{ __('common.clear') }}
                </flux:button>
            @endif
        </div>
    </div>

    <!-- Sort Headers -->
    <div class="hidden lg:flex bg-zinc-100 rounded-t-lg px-4 py-2 text-sm font-medium text-zinc-600 gap-4 mb-0">
        <button wire:click="sort('booking_date')" class="flex items-center gap-1 w-32 hover:text-zinc-900">
            {{ __('admin.date') }}
            @if($sortBy === 'booking_date')
                <flux:icon name="{{ $sortDir === 'asc' ? 'chevron-up' : 'chevron-down' }}" class="w-4 h-4" />
            @endif
        </button>
        <span class="flex-1">{{ __('admin.client') }}</span>
        <button wire:click="sort('status')" class="flex items-center gap-1 w-24 hover:text-zinc-900">
            {{ __('admin.current_status') }}
            @if($sortBy === 'status')
                <flux:icon name="{{ $sortDir === 'asc' ? 'chevron-up' : 'chevron-down' }}" class="w-4 h-4" />
            @endif
        </button>
        <span class="w-24">{{ __('admin.payment_status') }}</span>
        <span class="w-48">{{ __('common.actions') }}</span>
    </div>

    <!-- Consultations List -->
    <div class="space-y-0">
        @forelse($consultations as $consultation)
            <div wire:key="consultation-{{ $consultation->id }}" class="bg-white p-4 border border-zinc-200 {{ $loop->first ? 'rounded-t-lg lg:rounded-t-none' : '' }} {{ $loop->last ? 'rounded-b-lg' : '' }} {{ !$loop->first ? 'border-t-0' : '' }}">
                <div class="flex flex-col lg:flex-row lg:items-center gap-4">
                    <!-- Date/Time -->
                    <div class="lg:w-32">
                        <div class="text-sm font-medium text-zinc-900">
                            {{ \Carbon\Carbon::parse($consultation->booking_date)->translatedFormat('d M Y') }}
                        </div>
                        <div class="text-xs text-zinc-500">
                            {{ \Carbon\Carbon::parse($consultation->booking_time)->format('g:i A') }}
                        </div>
                    </div>

                    <!-- Client Info -->
                    <div class="flex-1">
                        <div class="flex items-center gap-2 mb-1">
                            <a href="{{ route('admin.consultations.show', $consultation) }}" class="font-semibold text-zinc-900 hover:text-blue-600" wire:navigate>
                                {{ $consultation->user?->full_name ?? __('common.unknown') }}
                            </a>
                            <flux:badge size="sm" color="{{ $consultation->consultation_type === \App\Enums\ConsultationType::Paid ? 'indigo' : 'zinc' }}">
                                {{ $consultation->consultation_type->label() }}
                            </flux:badge>
                        </div>
                        <div class="text-sm text-zinc-500">
                            {{ $consultation->user?->email ?? '-' }}
                        </div>
                    </div>

                    <!-- Status Badge -->
                    <div class="lg:w-24">
                        @php
                            $statusColor = match($consultation->status) {
                                \App\Enums\ConsultationStatus::Pending => 'amber',
                                \App\Enums\ConsultationStatus::Approved => 'sky',
                                \App\Enums\ConsultationStatus::Completed => 'green',
                                \App\Enums\ConsultationStatus::Cancelled => 'red',
                                \App\Enums\ConsultationStatus::NoShow => 'orange',
                                \App\Enums\ConsultationStatus::Rejected => 'rose',
                            };
                        @endphp
                        <flux:badge color="{{ $statusColor }}" size="sm">
                            {{ $consultation->status->label() }}
                        </flux:badge>
                    </div>

                    <!-- Payment Status -->
                    <div class="lg:w-24">
                        @if($consultation->consultation_type === \App\Enums\ConsultationType::Paid)
                            @php
                                $paymentColor = match($consultation->payment_status) {
                                    \App\Enums\PaymentStatus::Pending => 'amber',
                                    \App\Enums\PaymentStatus::Received => 'green',
                                    default => 'zinc',
                                };
                            @endphp
                            <flux:badge color="{{ $paymentColor }}" size="sm">
                                {{ $consultation->payment_status->label() }}
                            </flux:badge>
                        @else
                            <span class="text-xs text-zinc-400">-</span>
                        @endif
                    </div>

                    <!-- Actions -->
                    <div class="lg:w-48 flex flex-wrap gap-2">
                        <flux:button
                            href="{{ route('admin.consultations.show', $consultation) }}"
                            variant="outline"
                            size="sm"
                            wire:navigate
                        >
                            {{ __('common.edit') }}
                        </flux:button>

                        @if(in_array($consultation->status, [\App\Enums\ConsultationStatus::Approved, \App\Enums\ConsultationStatus::Completed, \App\Enums\ConsultationStatus::NoShow]))
                            <flux:dropdown>
                                <flux:button variant="outline" size="sm" icon="ellipsis-vertical" />

                                <flux:menu>
                                    @if($consultation->status !== \App\Enums\ConsultationStatus::Completed)
                                        <flux:menu.item
                                            wire:click="markCompleted({{ $consultation->id }})"
                                            wire:confirm="{{ __('admin.confirm_mark_completed') }}"
                                            icon="check-circle"
                                        >
                                            {{ __('admin.mark_completed') }}
                                        </flux:menu.item>
                                    @endif

                                    @if($consultation->status !== \App\Enums\ConsultationStatus::NoShow)
                                        <flux:menu.item
                                            wire:click="markNoShow({{ $consultation->id }})"
                                            wire:confirm="{{ __('admin.confirm_mark_no_show') }}"
                                            icon="x-circle"
                                        >
                                            {{ __('admin.mark_no_show') }}
                                        </flux:menu.item>
                                    @endif

                                    @if($consultation->status === \App\Enums\ConsultationStatus::Approved)
                                        <flux:menu.separator />

                                        <flux:menu.item
                                            wire:click="cancel({{ $consultation->id }})"
                                            wire:confirm="{{ __('admin.confirm_cancel_consultation') }}"
                                            icon="trash"
                                            variant="danger"
                                        >
                                            {{ __('admin.cancel_consultation') }}
                                        </flux:menu.item>
                                    @endif
                                </flux:menu>
                            </flux:dropdown>
                        @endif

                        @if($consultation->status === \App\Enums\ConsultationStatus::Pending)
                            <flux:button
                                wire:click="cancel({{ $consultation->id }})"
                                wire:confirm="{{ __('admin.confirm_cancel_consultation') }}"
                                variant="danger"
                                size="sm"
                            >
                                {{ __('common.cancel') }}
                            </flux:button>
                        @endif

                        @if($consultation->consultation_type === \App\Enums\ConsultationType::Paid && $consultation->payment_status === \App\Enums\PaymentStatus::Pending)
                            <flux:button
                                wire:click="markPaymentReceived({{ $consultation->id }})"
                                wire:confirm="{{ __('admin.confirm_mark_payment') }}"
                                variant="primary"
                                size="sm"
                            >
                                {{ __('admin.payment_received') }}
                            </flux:button>
                        @endif
                    </div>
                </div>
            </div>
        @empty
            <div class="text-center py-12 text-zinc-500 bg-white rounded-lg border border-zinc-200">
                <flux:icon name="inbox" class="w-12 h-12 mx-auto mb-4" />
                <p>{{ __('admin.no_consultations') }}</p>
            </div>
        @endforelse
    </div>

    <div class="mt-6">
        {{ $consultations->links() }}
    </div>
</div>