<?php

namespace App\Filament\Resources\PolicyResource\Pages;

use App\Filament\Resources\BulkOperationRunResource;
use App\Filament\Resources\PolicyResource;
use App\Jobs\CapturePolicySnapshotJob;
use App\Services\BulkOperationService;
use App\Support\RunIdempotency;
use Filament\Actions\Action;
use Filament\Forms;
use Filament\Notifications\Notification;
use Filament\Resources\Pages\ViewRecord;
use Filament\Support\Enums\Width;
use Illuminate\Support\Str;

class ViewPolicy extends ViewRecord
{
    protected static string $resource = PolicyResource::class;

    protected Width|string|null $maxContentWidth = Width::Full;

    protected function getActions(): array
    {
        return [
            Action::make('capture_snapshot')
                ->label('Capture snapshot')
                ->requiresConfirmation()
                ->modalHeading('Capture snapshot now')
                ->modalSubheading('This queues a background job that fetches the latest configuration from Microsoft Graph and stores a new policy version.')
                ->form([
                    Forms\Components\Checkbox::make('include_assignments')
                        ->label('Include assignments')
                        ->default(true)
                        ->helperText('Captures assignment include/exclude targeting and filters.'),
                    Forms\Components\Checkbox::make('include_scope_tags')
                        ->label('Include scope tags')
                        ->default(true)
                        ->helperText('Captures policy scope tag IDs.'),
                ])
                ->action(function (array $data) {
                    $policy = $this->record;

                    $tenant = $policy->tenant;
                    $user = auth()->user();

                    if (! $tenant || ! $user) {
                        Notification::make()
                            ->title('Missing tenant or user context.')
                            ->danger()
                            ->send();

                        return;
                    }

                    $idempotencyKey = RunIdempotency::buildKey(
                        tenantId: $tenant->getKey(),
                        operationType: 'policy.capture_snapshot',
                        targetId: $policy->getKey()
                    );

                    $existingRun = RunIdempotency::findActiveBulkOperationRun(
                        tenantId: $tenant->getKey(),
                        idempotencyKey: $idempotencyKey
                    );

                    if ($existingRun) {
                        Notification::make()
                            ->title('Snapshot already in progress')
                            ->body('An active run already exists for this policy. Opening run details.')
                            ->actions([
                                \Filament\Actions\Action::make('view_run')
                                    ->label('View run')
                                    ->url(BulkOperationRunResource::getUrl('view', ['record' => $existingRun], tenant: $tenant)),
                            ])
                            ->info()
                            ->send();

                        $this->redirect(BulkOperationRunResource::getUrl('view', ['record' => $existingRun], tenant: $tenant));

                        return;
                    }

                    $bulkOperationService = app(BulkOperationService::class);

                    $run = $bulkOperationService->createRun(
                        tenant: $tenant,
                        user: $user,
                        resource: 'policies',
                        action: 'capture_snapshot',
                        itemIds: [(string) $policy->getKey()],
                        totalItems: 1
                    );

                    $run->update(['idempotency_key' => $idempotencyKey]);

                    CapturePolicySnapshotJob::dispatch(
                        bulkOperationRunId: $run->getKey(),
                        policyId: $policy->getKey(),
                        includeAssignments: (bool) ($data['include_assignments'] ?? false),
                        includeScopeTags: (bool) ($data['include_scope_tags'] ?? false),
                        createdBy: $user->email ? Str::limit($user->email, 255, '') : null
                    );

                    Notification::make()
                        ->title('Snapshot queued')
                        ->body('A background job has been queued. You can monitor progress in the run details.')
                        ->actions([
                            \Filament\Actions\Action::make('view_run')
                                ->label('View run')
                                ->url(BulkOperationRunResource::getUrl('view', ['record' => $run], tenant: $tenant)),
                        ])
                        ->success()
                        ->send();

                    $this->redirect(BulkOperationRunResource::getUrl('view', ['record' => $run], tenant: $tenant));
                })
                ->color('primary'),
        ];
    }
}