<?php

namespace App\Filament\Resources\ProviderConnectionResource\Pages;

use App\Filament\Resources\ProviderConnectionResource;
use App\Models\Tenant;
use App\Models\User;
use App\Services\Auth\CapabilityResolver;
use App\Support\Auth\Capabilities;
use Filament\Actions;
use Filament\Facades\Filament;
use Filament\Resources\Pages\ListRecords;

class ListProviderConnections extends ListRecords
{
    protected static string $resource = ProviderConnectionResource::class;

    protected function getHeaderActions(): array
    {
        /** @var CapabilityResolver $resolver */
        $resolver = app(CapabilityResolver::class);

        return [
            Actions\CreateAction::make()
                ->label('New connection')
                ->url(function (): string {
                    $tenantExternalId = $this->resolveTenantExternalIdForCreateAction();

                    if (! is_string($tenantExternalId) || $tenantExternalId === '') {
                        return ProviderConnectionResource::getUrl('create');
                    }

                    return ProviderConnectionResource::getUrl('create', [
                        'tenant_id' => $tenantExternalId,
                    ]);
                })
                ->visible(function () use ($resolver): bool {
                    $tenant = $this->resolveTenantForCreateAction();
                    $user = auth()->user();

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

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

                    return $resolver->isMember($user, $tenant);
                })
                ->disabled(function () use ($resolver): bool {
                    $tenant = $this->resolveTenantForCreateAction();
                    $user = auth()->user();

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

                    if (! $user instanceof User) {
                        return true;
                    }

                    if (! $resolver->isMember($user, $tenant)) {
                        return true;
                    }

                    return ! $resolver->can($user, $tenant, Capabilities::PROVIDER_MANAGE);
                })
                ->tooltip(function () use ($resolver): ?string {
                    $tenant = $this->resolveTenantForCreateAction();

                    if (! $tenant instanceof Tenant) {
                        return 'Select a tenant to create provider connections.';
                    }

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

                    if (! $user instanceof User) {
                        return null;
                    }

                    if (! $resolver->isMember($user, $tenant)) {
                        return null;
                    }

                    if (! $resolver->can($user, $tenant, Capabilities::PROVIDER_MANAGE)) {
                        return 'You do not have permission to create provider connections.';
                    }

                    return null;
                })
                ->authorize(fn (): bool => true),
        ];
    }

    private function resolveTenantExternalIdForCreateAction(): ?string
    {
        $filterValue = data_get($this->getTableFilterState('tenant'), 'value');

        if (is_string($filterValue) && $filterValue !== '') {
            return $filterValue;
        }

        $requested = ProviderConnectionResource::resolveRequestedTenantExternalId()
            ?? ProviderConnectionResource::resolveContextTenantExternalId();

        if (is_string($requested) && $requested !== '') {
            return $requested;
        }

        $filamentTenant = Filament::getTenant();

        return $filamentTenant instanceof Tenant ? (string) $filamentTenant->external_id : null;
    }

    private function resolveTenantForCreateAction(): ?Tenant
    {
        $tenantExternalId = $this->resolveTenantExternalIdForCreateAction();

        if (! is_string($tenantExternalId) || $tenantExternalId === '') {
            return null;
        }

        return Tenant::query()
            ->where('external_id', $tenantExternalId)
            ->first();
    }

    public function getTableEmptyStateHeading(): ?string
    {
        return 'No provider connections found';
    }

    public function getTableEmptyStateDescription(): ?string
    {
        return 'Create a Microsoft provider connection or adjust the tenant filter to inspect another managed tenant.';
    }

    public function getTableEmptyStateActions(): array
    {
        return $this->getHeaderActions();
    }
}