<?php

namespace App\Filament\Pages;

use App\Enums\DecisionAdmin;
use App\Enums\VerificationStatus;
use App\Models\VerificationRequest;
use App\Models\VerificationReview;
use BackedEnum;
use Filament\Actions\Action;
use Filament\Actions\Concerns\InteractsWithActions;
use Filament\Actions\Contracts\HasActions;
use Filament\Forms\Components\Textarea;
use Filament\Forms\Concerns\InteractsWithForms;
use Filament\Forms\Contracts\HasForms;
use Filament\Notifications\Notification;
use Filament\Pages\Page;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\Auth;
use UnitEnum;

class AdminVerification extends Page implements HasActions, HasForms
{
    use InteractsWithActions, InteractsWithForms;

    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-user-group';

    protected static ?string $title = 'Verifikasi Rekanan';

    protected static ?string $navigationLabel = 'Verifikasi Rekanan';

    protected static string|UnitEnum|null $navigationGroup = 'Kelola';

    protected static ?int $navigationSort = 10;

    protected static ?string $slug = 'manage/admin-verification';

    protected string $view = 'filament.pages.admin-verification';

    public string $filterStatus = 'all';

    public function getVerifications(): LengthAwarePaginator
    {
        $query = VerificationRequest::with([
            'verifiable',
            'submittedBy',
            'reviews.reviewer',
        ])
            ->latest('updated_at');

        // Apply status filter
        if ($this->filterStatus !== 'all') {
            $query->where('status', $this->filterStatus);
        }

        return $query->paginate(12);
    }

    public function setFilter(string $status): void
    {
        $this->filterStatus = $status;
    }

    public function getStatusCounts(): array
    {
        return [
            'all' => VerificationRequest::count(),
            'pending' => VerificationRequest::where('status', VerificationStatus::PENDING)->count(),
            'revision' => VerificationRequest::where('status', VerificationStatus::NEED_REVISION)->count(),
            'approved' => VerificationRequest::where('status', VerificationStatus::APPROVED)->count(),
            'rejected' => VerificationRequest::where('status', VerificationStatus::REJECTED)->count(),
        ];
    }

    /**
     * Get the entity type label
     */
    public function getEntityTypeLabel(VerificationRequest $request): string
    {
        $type = class_basename($request->verifiable_type);

        return match ($type) {
            'Company' => 'Perusahaan',
            'PartnerMedia' => 'Media',
            'Journalist' => 'Jurnalis',
            default => $type,
        };
    }

    /**
     * Get the entity name
     */
    public function getEntityName(VerificationRequest $request): string
    {
        $entity = $request->verifiable;

        if (! $entity) {
            return 'Data tidak ditemukan';
        }

        return $entity->name ?? 'Tanpa Nama';
    }

    /**
     * Get detail URL based on entity type
     */
    public function getDetailUrl(VerificationRequest $request): ?string
    {
        $entity = $request->verifiable;
        $type = class_basename($request->verifiable_type);

        if (! $entity) {
            return null;
        }

        return match ($type) {
            'Company' => route('filament.dashboard.resources.manage.partners.view', ['record' => $entity->user_id]),
            'PartnerMedia' => route('filament.dashboard.resources.manage.partners.view', ['record' => $entity->company?->user_id]),
            'Journalist' => route('filament.dashboard.resources.manage.journalists.view', ['record' => $entity->id]),
            default => null,
        };
    }

    /**
     * Approve verification action
     */
    public function approveAction(): Action
    {
        return Action::make('approve')
            ->label('Setujui')
            ->color('success')
            ->icon('heroicon-o-check')
            ->size('sm')
            ->requiresConfirmation()
            ->modalHeading('Setujui Verifikasi')
            ->modalDescription('Apakah Anda yakin ingin menyetujui verifikasi ini?')
            ->modalSubmitActionLabel('Ya, Setujui')
            ->form([
                Textarea::make('note')
                    ->label('Catatan (Opsional)')
                    ->placeholder('Tambahkan catatan jika diperlukan...'),
            ])
            ->action(function (array $arguments, array $data) {
                $this->processReview($arguments['id'], DecisionAdmin::APPROVED, $data['note'] ?? null);
            });
    }

    /**
     * Revision verification action
     */
    public function revisionAction(): Action
    {
        return Action::make('revision')
            ->label('Minta Revisi')
            ->color('warning')
            ->icon('heroicon-o-pencil-square')
            ->size('sm')
            ->modalHeading('Minta Revisi')
            ->modalDescription('User akan diminta untuk memperbaiki data sesuai catatan yang diberikan.')
            ->form([
                Textarea::make('note')
                    ->label('Catatan Revisi')
                    ->required()
                    ->placeholder('Jelaskan bagian yang perlu diperbaiki...')
                    ->helperText('Catatan ini akan ditampilkan kepada user.'),
            ])
            ->action(function (array $arguments, array $data) {
                $this->processReview($arguments['id'], DecisionAdmin::NEED_REVISION, $data['note']);
            });
    }

    /**
     * Reject verification action
     */
    public function rejectAction(): Action
    {
        return Action::make('reject')
            ->label('Tolak')
            ->color('danger')
            ->icon('heroicon-o-x-mark')
            ->size('sm')
            ->requiresConfirmation()
            ->modalHeading('Tolak Verifikasi')
            ->modalDescription('Pengajuan akan ditolak secara permanen. User tidak dapat mengajukan ulang untuk data ini.')
            ->modalSubmitActionLabel('Ya, Tolak')
            ->form([
                Textarea::make('note')
                    ->label('Alasan Penolakan')
                    ->required()
                    ->placeholder('Jelaskan alasan pengajuan ditolak...')
                    ->helperText('Alasan ini akan ditampilkan kepada user.'),
            ])
            ->action(function (array $arguments, array $data) {
                $this->processReview($arguments['id'], DecisionAdmin::REJECTED, $data['note']);
            });
    }

    /**
     * Process review decision
     */
    protected function processReview(int $requestId, DecisionAdmin $decision, ?string $note): void
    {
        $verificationRequest = VerificationRequest::find($requestId);

        if (! $verificationRequest) {
            Notification::make()
                ->title('Error')
                ->body('Data verifikasi tidak ditemukan.')
                ->danger()
                ->send();

            return;
        }

        // Create review record
        VerificationReview::create([
            'verification_request_id' => $verificationRequest->id,
            'reviewer_id' => Auth::id(),
            'decision' => $decision,
            'note' => $note,
        ]);

        // Update verification request status
        $newStatus = match ($decision) {
            DecisionAdmin::APPROVED => VerificationStatus::APPROVED,
            DecisionAdmin::NEED_REVISION => VerificationStatus::NEED_REVISION,
            DecisionAdmin::REJECTED => VerificationStatus::REJECTED,
        };

        $verificationRequest->update([
            'status' => $newStatus,
        ]);

        // Update the related entity status if needed
        $entity = $verificationRequest->verifiable;
        if ($entity && method_exists($entity, 'update')) {
            $entity->update(['status' => $newStatus]);
        }

        $actionLabel = match ($decision) {
            DecisionAdmin::APPROVED => 'disetujui',
            DecisionAdmin::NEED_REVISION => 'diminta revisi',
            DecisionAdmin::REJECTED => 'ditolak',
        };

        $color = match ($decision) {
            DecisionAdmin::APPROVED => 'success',
            DecisionAdmin::NEED_REVISION => 'info',
            DecisionAdmin::REJECTED => 'danger',
        };

        Notification::make()
            ->title('Berhasil')
            ->body("Verifikasi telah {$actionLabel}.")
            ->color($color)
            ->send();
    }
}