<?php

namespace App\Filament\Resources\FindingResource\Pages;

use App\Filament\Resources\FindingResource;
use App\Models\Finding;
use App\Support\Auth\Capabilities;
use App\Support\Rbac\UiEnforcement;
use App\Support\Rbac\UiTooltips;
use Filament\Actions;
use Filament\Forms\Components\TextInput;
use Filament\Notifications\Notification;
use Filament\Resources\Pages\ListRecords;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Arr;

class ListFindings extends ListRecords
{
    protected static string $resource = FindingResource::class;

    protected function getHeaderActions(): array
    {
        return [
            UiEnforcement::forAction(
                Actions\Action::make('acknowledge_all_matching')
                    ->label('Acknowledge all matching')
                    ->icon('heroicon-o-check')
                    ->color('gray')
                    ->requiresConfirmation()
                    ->visible(fn (): bool => $this->getStatusFilterValue() === Finding::STATUS_NEW)
                    ->modalDescription(function (): string {
                        $count = $this->getAllMatchingCount();

                        return "You are about to acknowledge {$count} finding".($count === 1 ? '' : 's').' matching the current filters.';
                    })
                    ->form(function (): array {
                        $count = $this->getAllMatchingCount();

                        if ($count <= 100) {
                            return [];
                        }

                        return [
                            TextInput::make('confirmation')
                                ->label('Type ACKNOWLEDGE to confirm')
                                ->required()
                                ->in(['ACKNOWLEDGE'])
                                ->validationMessages([
                                    'in' => 'Please type ACKNOWLEDGE to confirm.',
                                ]),
                        ];
                    })
                    ->action(function (array $data): void {
                        $query = $this->buildAllMatchingQuery();
                        $count = (clone $query)->count();

                        if ($count === 0) {
                            Notification::make()
                                ->title('No matching findings')
                                ->body('There are no new findings matching the current filters.')
                                ->warning()
                                ->send();

                            return;
                        }

                        $updated = $query->update([
                            'status' => Finding::STATUS_ACKNOWLEDGED,
                            'acknowledged_at' => now(),
                            'acknowledged_by_user_id' => auth()->id(),
                        ]);

                        $this->deselectAllTableRecords();
                        $this->resetPage();

                        Notification::make()
                            ->title('Bulk acknowledge completed')
                            ->body("Acknowledged {$updated} finding".($updated === 1 ? '' : 's').'.')
                            ->success()
                            ->send();
                    })
            )
                ->preserveVisibility()
                ->requireCapability(Capabilities::TENANT_FINDINGS_ACKNOWLEDGE)
                ->tooltip(UiTooltips::INSUFFICIENT_PERMISSION)
                ->apply(),
        ];
    }

    protected function buildAllMatchingQuery(): Builder
    {
        $query = Finding::query();

        $tenantId = \Filament\Facades\Filament::getTenant()?->getKey();

        if (! is_numeric($tenantId)) {
            return $query->whereRaw('1 = 0');
        }

        $query->where('tenant_id', (int) $tenantId);

        $query->where('status', Finding::STATUS_NEW);

        $findingType = $this->getFindingTypeFilterValue();
        if (is_string($findingType) && $findingType !== '') {
            $query->where('finding_type', $findingType);
        }

        $scopeKeyState = $this->getTableFilterState('scope_key') ?? [];
        $scopeKey = Arr::get($scopeKeyState, 'scope_key');
        if (is_string($scopeKey) && $scopeKey !== '') {
            $query->where('scope_key', $scopeKey);
        }

        $runIdsState = $this->getTableFilterState('run_ids') ?? [];
        $baselineRunId = Arr::get($runIdsState, 'baseline_run_id');
        if (is_numeric($baselineRunId)) {
            $query->where('baseline_run_id', (int) $baselineRunId);
        }

        $currentRunId = Arr::get($runIdsState, 'current_run_id');
        if (is_numeric($currentRunId)) {
            $query->where('current_run_id', (int) $currentRunId);
        }

        return $query;
    }

    protected function getAllMatchingCount(): int
    {
        return (int) $this->buildAllMatchingQuery()->count();
    }

    protected function getStatusFilterValue(): string
    {
        $state = $this->getTableFilterState('status') ?? [];
        $value = Arr::get($state, 'value');

        return is_string($value) && $value !== ''
            ? $value
            : Finding::STATUS_NEW;
    }

    protected function getFindingTypeFilterValue(): string
    {
        $state = $this->getTableFilterState('finding_type') ?? [];
        $value = Arr::get($state, 'value');

        return is_string($value) && $value !== ''
            ? $value
            : Finding::FINDING_TYPE_DRIFT;
    }
}