<?php

declare(strict_types=1);

namespace App\Filament\Resources;

use App\Filament\Concerns\InteractsWithTenantOwnedRecords;
use App\Filament\Concerns\ResolvesPanelTenantContext;
use App\Filament\Resources\TenantReviewResource\Pages;
use App\Models\EvidenceSnapshot;
use App\Models\Tenant;
use App\Models\TenantReview;
use App\Models\TenantReviewSection;
use App\Models\User;
use App\Services\ReviewPackService;
use App\Services\TenantReviews\TenantReviewService;
use App\Support\Auth\Capabilities;
use App\Support\Badges\BadgeDomain;
use App\Support\Badges\BadgeRenderer;
use App\Support\OperationRunLinks;
use App\Support\OperationRunType;
use App\Support\OpsUx\OperationUxPresenter;
use App\Support\Rbac\UiEnforcement;
use App\Support\TenantReviewStatus;
use App\Support\Ui\ActionSurface\ActionSurfaceDeclaration;
use App\Support\Ui\ActionSurface\Enums\ActionSurfaceInspectAffordance;
use App\Support\Ui\ActionSurface\Enums\ActionSurfaceProfile;
use App\Support\Ui\ActionSurface\Enums\ActionSurfaceSlot;
use BackedEnum;
use Filament\Actions;
use Filament\Facades\Filament;
use Filament\Forms\Components\Select;
use Filament\Infolists\Components\RepeatableEntry;
use Filament\Infolists\Components\TextEntry;
use Filament\Infolists\Components\ViewEntry;
use Filament\Notifications\Notification;
use Filament\Resources\Resource;
use Filament\Schemas\Components\Section;
use Filament\Schemas\Schema;
use Filament\Support\Enums\TextSize;
use Filament\Tables;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;
use UnitEnum;

class TenantReviewResource extends Resource
{
    use InteractsWithTenantOwnedRecords;
    use ResolvesPanelTenantContext;

    protected static bool $isDiscovered = false;

    protected static ?string $model = TenantReview::class;

    protected static ?string $slug = 'reviews';

    protected static ?string $tenantOwnershipRelationshipName = 'tenant';

    protected static bool $isGloballySearchable = false;

    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-document-magnifying-glass';

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

    protected static ?string $navigationLabel = 'Reviews';

    protected static ?int $navigationSort = 45;

    public static function shouldRegisterNavigation(): bool
    {
        return Filament::getCurrentPanel()?->getId() === 'tenant';
    }

    public static function canViewAny(): bool
    {
        $tenant = static::resolveTenantContextForCurrentPanel();
        $user = auth()->user();

        if (! $tenant instanceof Tenant || ! $user instanceof User) {
            return false;
        }

        if (! $user->canAccessTenant($tenant)) {
            return false;
        }

        return $user->can(Capabilities::TENANT_REVIEW_VIEW, $tenant);
    }

    public static function canView(Model $record): bool
    {
        $tenant = static::resolveTenantContextForCurrentPanel();
        $user = auth()->user();

        if (! $tenant instanceof Tenant || ! $user instanceof User || ! $record instanceof TenantReview) {
            return false;
        }

        if (! $user->canAccessTenant($tenant)) {
            return false;
        }

        if ((int) $record->tenant_id !== (int) $tenant->getKey()) {
            return false;
        }

        return $user->can('view', $record);
    }

    public static function actionSurfaceDeclaration(): ActionSurfaceDeclaration
    {
        return ActionSurfaceDeclaration::forResource(ActionSurfaceProfile::CrudListAndView)
            ->satisfy(ActionSurfaceSlot::ListHeader, 'Create review is available from the review library header.')
            ->satisfy(ActionSurfaceSlot::InspectAffordance, ActionSurfaceInspectAffordance::ClickableRow->value)
            ->satisfy(ActionSurfaceSlot::ListEmptyState, 'Empty state includes exactly one Create first review CTA.')
            ->exempt(ActionSurfaceSlot::ListBulkMoreGroup, 'Tenant reviews do not expose bulk actions in the first slice.')
            ->exempt(ActionSurfaceSlot::ListRowMoreMenu, 'Primary row actions stay limited to View review and Export executive pack.')
            ->satisfy(ActionSurfaceSlot::DetailHeader, 'Detail exposes Refresh review, Publish review, Export executive pack, Archive review, and Create next review as applicable.');
    }

    public static function getEloquentQuery(): Builder
    {
        return static::getTenantOwnedEloquentQuery()
            ->with(['tenant', 'evidenceSnapshot', 'operationRun', 'initiator', 'publisher', 'currentExportReviewPack', 'sections'])
            ->latest('generated_at')
            ->latest('id');
    }

    public static function resolveScopedRecordOrFail(int|string|null $record): Model
    {
        return static::resolveTenantOwnedRecordOrFail($record);
    }

    public static function form(Schema $schema): Schema
    {
        return $schema;
    }

    public static function infolist(Schema $schema): Schema
    {
        return $schema->schema([
            Section::make('Review')
                ->schema([
                    TextEntry::make('status')
                        ->badge()
                        ->formatStateUsing(BadgeRenderer::label(BadgeDomain::TenantReviewStatus))
                        ->color(BadgeRenderer::color(BadgeDomain::TenantReviewStatus))
                        ->icon(BadgeRenderer::icon(BadgeDomain::TenantReviewStatus))
                        ->iconColor(BadgeRenderer::iconColor(BadgeDomain::TenantReviewStatus)),
                    TextEntry::make('completeness_state')
                        ->label('Completeness')
                        ->badge()
                        ->formatStateUsing(BadgeRenderer::label(BadgeDomain::TenantReviewCompleteness))
                        ->color(BadgeRenderer::color(BadgeDomain::TenantReviewCompleteness))
                        ->icon(BadgeRenderer::icon(BadgeDomain::TenantReviewCompleteness))
                        ->iconColor(BadgeRenderer::iconColor(BadgeDomain::TenantReviewCompleteness)),
                    TextEntry::make('tenant.name')->label('Tenant'),
                    TextEntry::make('generated_at')->dateTime()->placeholder('—'),
                    TextEntry::make('published_at')->dateTime()->placeholder('—'),
                    TextEntry::make('evidenceSnapshot.id')
                        ->label('Evidence snapshot')
                        ->formatStateUsing(fn (?int $state): string => $state ? '#'.$state : '—')
                        ->url(fn (TenantReview $record): ?string => $record->evidenceSnapshot
                            ? EvidenceSnapshotResource::getUrl('view', ['record' => $record->evidenceSnapshot], tenant: $record->tenant)
                            : null),
                    TextEntry::make('currentExportReviewPack.id')
                        ->label('Current export')
                        ->formatStateUsing(fn (?int $state): string => $state ? '#'.$state : '—')
                        ->url(fn (TenantReview $record): ?string => $record->currentExportReviewPack
                            ? ReviewPackResource::getUrl('view', ['record' => $record->currentExportReviewPack], tenant: $record->tenant)
                            : null),
                    TextEntry::make('fingerprint')
                        ->copyable()
                        ->placeholder('—')
                        ->columnSpanFull()
                        ->fontFamily('mono')
                        ->size(TextSize::ExtraSmall),
                ])
                ->columns(2)
                ->columnSpanFull(),
            Section::make('Executive posture')
                ->schema([
                    ViewEntry::make('review_summary')
                        ->hiddenLabel()
                        ->view('filament.infolists.entries.tenant-review-summary')
                        ->state(fn (TenantReview $record): array => static::summaryPresentation($record))
                        ->columnSpanFull(),
                ])
                ->columnSpanFull(),
            Section::make('Sections')
                ->schema([
                    RepeatableEntry::make('sections')
                        ->hiddenLabel()
                        ->schema([
                            TextEntry::make('title'),
                            TextEntry::make('completeness_state')
                                ->label('Completeness')
                                ->badge()
                                ->formatStateUsing(BadgeRenderer::label(BadgeDomain::TenantReviewCompleteness))
                                ->color(BadgeRenderer::color(BadgeDomain::TenantReviewCompleteness))
                                ->icon(BadgeRenderer::icon(BadgeDomain::TenantReviewCompleteness))
                                ->iconColor(BadgeRenderer::iconColor(BadgeDomain::TenantReviewCompleteness)),
                            TextEntry::make('measured_at')->dateTime()->placeholder('—'),
                            Section::make('Details')
                                ->schema([
                                    ViewEntry::make('section_payload')
                                        ->hiddenLabel()
                                        ->view('filament.infolists.entries.tenant-review-section')
                                        ->state(fn (TenantReviewSection $record): array => static::sectionPresentation($record))
                                        ->columnSpanFull(),
                                ])
                                ->collapsible()
                                ->collapsed()
                                ->columnSpanFull(),
                        ])
                        ->columns(3),
                ])
                ->columnSpanFull(),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->defaultSort('generated_at', 'desc')
            ->persistFiltersInSession()
            ->persistSearchInSession()
            ->persistSortInSession()
            ->recordUrl(fn (TenantReview $record): string => static::tenantScopedUrl('view', ['record' => $record], $record->tenant))
            ->columns([
                Tables\Columns\TextColumn::make('status')
                    ->badge()
                    ->formatStateUsing(BadgeRenderer::label(BadgeDomain::TenantReviewStatus))
                    ->color(BadgeRenderer::color(BadgeDomain::TenantReviewStatus))
                    ->icon(BadgeRenderer::icon(BadgeDomain::TenantReviewStatus))
                    ->iconColor(BadgeRenderer::iconColor(BadgeDomain::TenantReviewStatus))
                    ->sortable(),
                Tables\Columns\TextColumn::make('completeness_state')
                    ->label('Completeness')
                    ->badge()
                    ->formatStateUsing(BadgeRenderer::label(BadgeDomain::TenantReviewCompleteness))
                    ->color(BadgeRenderer::color(BadgeDomain::TenantReviewCompleteness))
                    ->icon(BadgeRenderer::icon(BadgeDomain::TenantReviewCompleteness))
                    ->iconColor(BadgeRenderer::iconColor(BadgeDomain::TenantReviewCompleteness))
                    ->sortable(),
                Tables\Columns\TextColumn::make('generated_at')->dateTime()->placeholder('—')->sortable(),
                Tables\Columns\TextColumn::make('published_at')->dateTime()->placeholder('—')->sortable(),
                Tables\Columns\TextColumn::make('summary.finding_count')->label('Findings'),
                Tables\Columns\TextColumn::make('summary.section_state_counts.missing')->label('Missing'),
                Tables\Columns\IconColumn::make('summary.has_ready_export')
                    ->label('Export')
                    ->boolean(),
                Tables\Columns\TextColumn::make('fingerprint')
                    ->toggleable(isToggledHiddenByDefault: true)
                    ->searchable(),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('status')
                    ->options(collect(TenantReviewStatus::cases())
                        ->mapWithKeys(fn (TenantReviewStatus $status): array => [$status->value => Str::headline($status->value)])
                        ->all()),
                Tables\Filters\SelectFilter::make('completeness_state')
                    ->options([
                        'complete' => 'Complete',
                        'partial' => 'Partial',
                        'missing' => 'Missing',
                        'stale' => 'Stale',
                    ]),
                \App\Support\Filament\FilterPresets::dateRange('review_date', 'Review date', 'generated_at'),
            ])
            ->actions([
                Actions\Action::make('view_review')
                    ->label('View review')
                    ->url(fn (TenantReview $record): string => static::tenantScopedUrl('view', ['record' => $record], $record->tenant)),
                UiEnforcement::forTableAction(
                    Actions\Action::make('export_executive_pack')
                        ->label('Export executive pack')
                        ->icon('heroicon-o-arrow-down-tray')
                        ->visible(fn (TenantReview $record): bool => in_array($record->status, [
                            TenantReviewStatus::Ready->value,
                            TenantReviewStatus::Published->value,
                        ], true))
                        ->action(fn (TenantReview $record): mixed => static::executeExport($record)),
                    fn (TenantReview $record): TenantReview => $record,
                )
                    ->requireCapability(Capabilities::TENANT_REVIEW_MANAGE)
                    ->preserveVisibility()
                    ->apply(),
            ])
            ->bulkActions([])
            ->emptyStateHeading('No tenant reviews yet')
            ->emptyStateDescription('Create the first review from an anchored evidence snapshot to start the recurring review history for this tenant.')
            ->emptyStateActions([
                static::makeCreateReviewAction(
                    name: 'create_first_review',
                    label: 'Create first review',
                    icon: 'heroicon-o-plus',
                ),
            ]);
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListTenantReviews::route('/'),
            'view' => Pages\ViewTenantReview::route('/{record}'),
        ];
    }

    public static function makeCreateReviewAction(
        string $name = 'create_review',
        string $label = 'Create review',
        string $icon = 'heroicon-o-plus',
    ): Actions\Action {
        return UiEnforcement::forAction(
            Actions\Action::make($name)
                ->label($label)
                ->icon($icon)
                ->form([
                    Section::make('Evidence basis')
                        ->schema([
                            Select::make('evidence_snapshot_id')
                                ->label('Evidence snapshot')
                                ->required()
                                ->options(fn (): array => static::evidenceSnapshotOptions())
                                ->searchable()
                                ->helperText('Choose the anchored evidence snapshot for this review.'),
                        ]),
                ])
                ->action(fn (array $data): mixed => static::executeCreateReview($data)),
        )
            ->requireCapability(Capabilities::TENANT_REVIEW_MANAGE)
            ->apply();
    }

    /**
     * @param  array<string, mixed>  $data
     */
    public static function executeCreateReview(array $data): void
    {
        $tenant = Filament::getTenant();
        $user = auth()->user();

        if (! $tenant instanceof Tenant || ! $user instanceof User) {
            Notification::make()->danger()->title('Unable to create review — missing context.')->send();

            return;
        }

        if (! $user->canAccessTenant($tenant)) {
            abort(404);
        }

        if (! $user->can(Capabilities::TENANT_REVIEW_MANAGE, $tenant)) {
            abort(403);
        }

        $snapshotId = $data['evidence_snapshot_id'] ?? null;
        $snapshot = is_numeric($snapshotId)
            ? EvidenceSnapshot::query()
                ->whereKey((int) $snapshotId)
                ->where('tenant_id', (int) $tenant->getKey())
                ->first()
            : null;

        if (! $snapshot instanceof EvidenceSnapshot) {
            Notification::make()->danger()->title('Select a valid evidence snapshot.')->send();

            return;
        }

        try {
            $review = app(TenantReviewService::class)->create($tenant, $snapshot, $user);
        } catch (\Throwable $throwable) {
            Notification::make()->danger()->title('Unable to create review')->body($throwable->getMessage())->send();

            return;
        }

        if (! $review->wasRecentlyCreated) {
            Notification::make()
                ->success()
                ->title('Review already available')
                ->body('A matching mutable review already exists for this evidence basis.')
                ->actions([
                    Actions\Action::make('view_review')
                        ->label('View review')
                        ->url(static::tenantScopedUrl('view', ['record' => $review], $tenant)),
                ])
                ->send();

            return;
        }

        $toast = OperationUxPresenter::queuedToast(OperationRunType::TenantReviewCompose->value)
            ->body('The review is being composed in the background.');

        if ($review->operation_run_id) {
            $toast->actions([
                Actions\Action::make('view_run')
                    ->label('View run')
                    ->url(OperationRunLinks::tenantlessView((int) $review->operation_run_id)),
            ]);
        }

        $toast->send();
    }

    public static function executeExport(TenantReview $review): void
    {
        $review->loadMissing(['tenant', 'currentExportReviewPack']);
        $user = auth()->user();

        if (! $user instanceof User || ! $review->tenant instanceof Tenant) {
            Notification::make()->danger()->title('Unable to export review — missing context.')->send();

            return;
        }

        if (! $user->canAccessTenant($review->tenant)) {
            abort(404);
        }

        if (! $user->can('export', $review)) {
            abort(403);
        }

        $service = app(ReviewPackService::class);

        if ($service->checkActiveRunForReview($review)) {
            OperationUxPresenter::alreadyQueuedToast(OperationRunType::ReviewPackGenerate->value)
                ->body('An executive pack export is already queued or running for this review.')
                ->send();

            return;
        }

        try {
            $pack = $service->generateFromReview($review, $user, [
                'include_pii' => true,
                'include_operations' => true,
            ]);
        } catch (\Throwable $throwable) {
            Notification::make()->danger()->title('Unable to export executive pack')->body($throwable->getMessage())->send();

            return;
        }

        if (! $pack->wasRecentlyCreated) {
            Notification::make()
                ->success()
                ->title('Executive pack already available')
                ->body('A matching executive pack already exists for this review.')
                ->actions([
                    Actions\Action::make('view_pack')
                        ->label('View pack')
                        ->url(ReviewPackResource::getUrl('view', ['record' => $pack], tenant: $review->tenant)),
                ])
                ->send();

            return;
        }

        OperationUxPresenter::queuedToast(OperationRunType::ReviewPackGenerate->value)
            ->body('The executive pack is being generated in the background.')
            ->send();
    }

    /**
     * @param  array<string, mixed>  $parameters
     */
    public static function tenantScopedUrl(
        string $page = 'index',
        array $parameters = [],
        ?Tenant $tenant = null,
        ?string $panel = null,
    ): string {
        $panelId = $panel ?? 'tenant';

        return static::getUrl($page, $parameters, panel: $panelId, tenant: $tenant);
    }

    /**
     * @return array<string, string>
     */
    private static function evidenceSnapshotOptions(): array
    {
        $tenant = Filament::getTenant();

        if (! $tenant instanceof Tenant) {
            return [];
        }

        return EvidenceSnapshot::query()
            ->where('tenant_id', (int) $tenant->getKey())
            ->whereNotNull('generated_at')
            ->orderByDesc('generated_at')
            ->orderByDesc('id')
            ->get()
            ->mapWithKeys(static fn (EvidenceSnapshot $snapshot): array => [
                (string) $snapshot->getKey() => sprintf(
                    '#%d · %s · %s',
                    (int) $snapshot->getKey(),
                    Str::headline((string) $snapshot->completeness_state),
                    $snapshot->generated_at?->format('Y-m-d H:i') ?? 'Pending'
                ),
            ])
            ->all();
    }

    /**
     * @return array<string, mixed>
     */
    private static function summaryPresentation(TenantReview $record): array
    {
        $summary = is_array($record->summary) ? $record->summary : [];

        return [
            'highlights' => is_array($summary['highlights'] ?? null) ? $summary['highlights'] : [],
            'next_actions' => is_array($summary['recommended_next_actions'] ?? null) ? $summary['recommended_next_actions'] : [],
            'publish_blockers' => is_array($summary['publish_blockers'] ?? null) ? $summary['publish_blockers'] : [],
            'metrics' => [
                ['label' => 'Findings', 'value' => (string) ($summary['finding_count'] ?? 0)],
                ['label' => 'Reports', 'value' => (string) ($summary['report_count'] ?? 0)],
                ['label' => 'Operations', 'value' => (string) ($summary['operation_count'] ?? 0)],
                ['label' => 'Sections', 'value' => (string) ($summary['section_count'] ?? 0)],
            ],
        ];
    }

    /**
     * @return array<string, mixed>
     */
    private static function sectionPresentation(TenantReviewSection $section): array
    {
        $summary = is_array($section->summary_payload) ? $section->summary_payload : [];
        $render = is_array($section->render_payload) ? $section->render_payload : [];
        $review = $section->tenantReview;
        $tenant = $section->tenant;

        return [
            'summary' => collect($summary)->map(function (mixed $value, string $key): ?array {
                if (is_array($value) || $value === null || $value === '') {
                    return null;
                }

                return [
                    'label' => Str::headline($key),
                    'value' => (string) $value,
                ];
            })->filter()->values()->all(),
            'highlights' => is_array($render['highlights'] ?? null) ? $render['highlights'] : [],
            'entries' => is_array($render['entries'] ?? null) ? $render['entries'] : [],
            'disclosure' => is_string($render['disclosure'] ?? null) ? $render['disclosure'] : null,
            'next_actions' => is_array($render['next_actions'] ?? null) ? $render['next_actions'] : [],
            'empty_state' => is_string($render['empty_state'] ?? null) ? $render['empty_state'] : null,
            'links' => [],
        ];
    }
}