<?php
namespace App\Filament\Pages\Fornitore;

use App\Filament\Pages\Fornitore\Concerns\ResolvesOperatoreContext;
use App\Models\AssistenzaTecnorepairScheda;
use App\Models\Fornitore;
use App\Models\FornitoreCliente;
use App\Models\TicketIntervento;
use App\Models\User;
use App\Support\GoogleAccountStore;
use BackedEnum;
use Filament\Pages\Page;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Str;
use UnitEnum;

class RubricaClienti extends Page
{
    use ResolvesOperatoreContext;

    protected static ?string $navigationLabel = 'Rubrica clienti';

    protected static ?string $title = 'Rubrica clienti fornitore';

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

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

    protected static ?int $navigationSort = 3;

    protected static ?string $slug = 'fornitore/rubrica-clienti';

    protected string $view = 'filament.pages.fornitore.rubrica-clienti';

    public ?int $fornitoreId = null;

    public ?string $fornitoreLabel = null;

    public bool $missingAdminContext = false;

    public string $search = '';

    public string $activeTab = 'elenco';

    public ?int $selectedClienteId = null;

    /** @var array<int, array<string, mixed>> */
    public array $rows = [];

    /** @var array<string, int> */
    public array $counters = [
        'totali'        => 0,
        'collegati'     => 0,
        'con_email'     => 0,
        'con_cellulare' => 0,
    ];

    /** @var array<string, mixed>|null */
    public ?array $googleWorkspaceStatus = null;

    public static function canAccess(): bool
    {
        $user = Auth::user();

        return $user instanceof User
        && $user->hasAnyRole(['super-admin', 'admin', 'amministratore', 'fornitore']);
    }

    public function mount(): void
    {
        [$fornitore] = $this->resolveOperatoreContext(allowAdminWithoutSupplier: true);

        if (! $fornitore instanceof Fornitore) {
            $this->missingAdminContext = true;
            return;
        }

        $this->fornitoreId           = (int) $fornitore->id;
        $this->fornitoreLabel        = $this->getFornitoreLabel($fornitore);
        $this->googleWorkspaceStatus = $this->resolveGoogleWorkspaceStatus($fornitore);
        $this->refreshRows();
    }

    public function updatedSearch(): void
    {
        $this->refreshRows();
    }

    public function selectTab(string $tab): void
    {
        if (! in_array($tab, ['elenco', 'scheda'], true)) {
            return;
        }

        $this->activeTab = $tab;
    }

    public function selectCliente(int $clienteId): void
    {
        $this->selectedClienteId = $clienteId > 0 ? $clienteId : null;
        $this->activeTab         = 'scheda';
    }

    public function refreshRows(): void
    {
        if (! $this->fornitoreId) {
            $this->rows     = [];
            $this->counters = ['totali' => 0, 'collegati' => 0, 'con_email' => 0, 'con_cellulare' => 0];
            return;
        }

        $term = Str::lower(trim($this->search));

        $legacyCounts = AssistenzaTecnorepairScheda::query()
            ->where('fornitore_id', $this->fornitoreId)
            ->selectRaw('legacy_cliente_id, COUNT(*) as totale_schede, MAX(date_received) as ultima_data')
            ->groupBy('legacy_cliente_id')
            ->get()
            ->mapWithKeys(fn(AssistenzaTecnorepairScheda $row): array=> [
                (int) ($row->legacy_cliente_id ?? 0) => [
                    'totale_schede' => (int) ($row->totale_schede ?? 0),
                    'ultima_data'   => optional($row->ultima_data)->format('d/m/Y') ?: '-',
                ],
            ])
            ->all();

        $items = FornitoreCliente::query()
            ->with('rubrica:id,nome,cognome,ragione_sociale,email,telefono_cellulare,telefono_ufficio,categoria')
            ->where('fornitore_id', $this->fornitoreId)
            ->when($term !== '', function ($query) use ($term): void {
                $like = '%' . $term . '%';

                $query->where(function ($inner) use ($like): void {
                    $inner->where('display_name', 'like', $like)
                        ->orWhere('phone', 'like', $like)
                        ->orWhere('phone_alt', 'like', $like)
                        ->orWhere('email', 'like', $like)
                        ->orWhere('citta', 'like', $like)
                        ->orWhere('indirizzo', 'like', $like);
                });
            })
            ->orderByRaw('CASE WHEN rubrica_id IS NULL THEN 1 ELSE 0 END')
            ->orderBy('display_name')
            ->get();

        if ($items->isEmpty()) {
            $this->rows     = $this->buildTicketFallbackRows($term);
            $this->counters = [
                'totali'        => count($this->rows),
                'collegati'     => (int) collect($this->rows)->filter(fn(array $row): bool => filled($row['rubrica_id'] ?? null))->count(),
                'con_email'     => (int) collect($this->rows)->filter(fn(array $row): bool => filled($row['email'] ?? null))->count(),
                'con_cellulare' => (int) collect($this->rows)->filter(fn(array $row): bool => filled($row['phone'] ?? null))->count(),
            ];

            $this->selectedClienteId = null;
            return;
        }

        $this->rows = $items->map(function (FornitoreCliente $cliente) use ($legacyCounts): array {
            $legacy = $legacyCounts[(int) ($cliente->legacy_cliente_id ?? 0)] ?? ['totale_schede' => 0, 'ultima_data' => '-'];

            return [
                'id'                => (int) $cliente->id,
                'legacy_cliente_id' => (int) ($cliente->legacy_cliente_id ?? 0),
                'display_name'      => (string) ($cliente->display_name ?: 'Cliente TecnoRepair'),
                'phone'             => (string) ($cliente->phone ?? ''),
                'phone_alt'         => (string) ($cliente->phone_alt ?? ''),
                'email'             => (string) ($cliente->email ?? ''),
                'indirizzo'         => (string) ($cliente->indirizzo ?? ''),
                'citta'             => (string) ($cliente->citta ?? ''),
                'provincia'         => (string) ($cliente->provincia ?? ''),
                'rubrica_id'        => (int) ($cliente->rubrica_id ?? 0),
                'rubrica_url'       => $cliente->rubrica_id ? $this->buildRubricaUrlForCurrentUser((int) $cliente->rubrica_id, (string) ($cliente->display_name ?? '')) : null,
                'rubrica_label'     => (string) ($cliente->rubrica?->categoria ?? ''),
                'totale_schede'     => (int) ($legacy['totale_schede'] ?? 0),
                'ultima_data'       => (string) ($legacy['ultima_data'] ?? '-'),
                'updated_at'        => optional($cliente->updated_at)->format('d/m/Y H:i') ?: '-',
                'source'            => 'tecnorepair_tclienti',
            ];
        })->all();

        $this->counters = [
            'totali'        => count($this->rows),
            'collegati'     => (int) collect($this->rows)->filter(fn(array $row): bool => (int) ($row['rubrica_id'] ?? 0) > 0)->count(),
            'con_email'     => (int) collect($this->rows)->filter(fn(array $row): bool => trim((string) ($row['email'] ?? '')) !== '')->count(),
            'con_cellulare' => (int) collect($this->rows)->filter(fn(array $row): bool => trim((string) ($row['phone'] ?? '')) !== '')->count(),
        ];

        if ((int) ($this->selectedClienteId ?? 0) <= 0 && $this->rows !== []) {
            $this->selectedClienteId = (int) $this->rows[0]['id'];
        }
    }

    public function getSelectedClienteProperty(): ?FornitoreCliente
    {
        $selectedId = (int) ($this->selectedClienteId ?? 0);
        if ($selectedId <= 0 || ! $this->fornitoreId) {
            return null;
        }

        return FornitoreCliente::query()
            ->with('rubrica')
            ->where('fornitore_id', $this->fornitoreId)
            ->find($selectedId);
    }

    /** @return array<int, array<string, mixed>> */
    public function getSelectedClienteSchedeProperty(): array
    {
        $cliente = $this->selectedCliente;
        if (! $cliente instanceof FornitoreCliente || ! $this->fornitoreId) {
            return [];
        }

        return AssistenzaTecnorepairScheda::query()
            ->where('fornitore_id', $this->fornitoreId)
            ->when((int) ($cliente->legacy_cliente_id ?? 0) > 0, fn($query) => $query->where('legacy_cliente_id', (int) $cliente->legacy_cliente_id))
            ->orderByDesc('date_received')
            ->orderByDesc('id')
            ->limit(30)
            ->get()
            ->map(fn(AssistenzaTecnorepairScheda $scheda): array=> [
                'id'           => (int) $scheda->id,
                'numero'       => (string) ($scheda->legacy_numero_scheda ?: ('#' . $scheda->id)),
                'prodotto'     => (string) ($scheda->product_model ?: '-'),
                'codice'       => (string) ($scheda->product_code ?: ''),
                'seriali'      => (string) $scheda->serial_label,
                'stato'        => (string) ($scheda->status_label ?: '-'),
                'status_badge' => (string) $scheda->status_badge_classes,
                'ingresso'     => optional($scheda->date_received)->format('d/m/Y') ?: '-',
            ])->all();

        $items = TicketIntervento::query()
            ->with(['ticket.stabile', 'ticket.soggettoRichiedente', 'ticket.apertoDaUser'])
            ->where('fornitore_id', $this->fornitoreId)
            ->latest('updated_at')
            ->limit(250)
            ->get();

        $grouped = [];

        foreach ($items as $intervento) {
            $contact = $this->resolveCallerDataForRubrica($intervento);
            $key     = $contact['identity_key'];

            if ($key === '') {
                $key = 'ticket-' . (int) $intervento->ticket_id;
            }

            if ($term !== '') {
                $haystack = Str::lower(implode(' ', [
                    $contact['contatto'],
                    $contact['telefono'],
                    $contact['email'],
                    $contact['stabile'],
                    $contact['origine'],
                ]));

                if (! Str::contains($haystack, $term)) {
                    continue;
                }
            }

            if (! isset($grouped[$key])) {
                $grouped[$key] = [
                    'contatto'          => $contact['contatto'],
                    'telefono'          => $contact['telefono'],
                    'email'             => $contact['email'],
                    'stabile'           => $contact['stabile'],
                    'origine'           => $contact['origine'],
                    'rubrica_url'       => $contact['rubrica_url'],
                    'rubrica_label'     => $contact['rubrica_label'],
                    'ultimo_ticket_id'  => (int) $intervento->ticket_id,
                    'ultima_scheda_url' => TicketInterventoScheda::getUrl(['record' => (int) $intervento->id], panel: 'admin-filament'),
                    'updated_at'        => optional($intervento->updated_at)->format('d/m/Y H:i') ?: '-',
                    'totale_interventi' => 1,
                ];
                continue;
            }

            $grouped[$key]['totale_interventi']++;
        }

        $this->rows = array_values($grouped);
    }

    public function getLavorazioniUrl(): string
    {
        return LavorazioniOperative::getUrl(['fornitore' => (int) $this->fornitoreId], panel: 'admin-filament');
    }

    public function getProdottiUrl(): string
    {
        return ProdottiCatalogo::getUrl(['fornitore' => (int) $this->fornitoreId], panel: 'admin-filament');
    }

    public function getImportCommandHintProperty(): string
    {
        $fornitore = (int) ($this->fornitoreId ?? 0) > 0
            ? Fornitore::query()->select(['id', 'amministratore_id'])->find((int) $this->fornitoreId)
            : null;

        if (! $fornitore instanceof Fornitore) {
            return 'php artisan tecnorepair:import-rubrica-clienti {amministratore} --fornitore-id={id}';
        }

        return 'php artisan tecnorepair:import-rubrica-clienti ' . (int) ($fornitore->amministratore_id ?? 0) . ' --fornitore-id=' . (int) $fornitore->id;
    }

    public function getGoogleConnectUrl(): string
    {
        return route('oauth.google.redirect', [
            'account_key' => 'fornitore-' . (int) ($this->fornitoreId ?? 0),
            'label'       => trim((string) ($this->fornitoreLabel ?? '')) ?: ('Fornitore #' . (int) ($this->fornitoreId ?? 0)),
            'return_to'   => request()->getRequestUri(),
        ]);
    }

    public function getGoogleDisconnectUrl(): string
    {
        return route('oauth.google.disconnect', [
            'account_key' => 'fornitore-' . (int) ($this->fornitoreId ?? 0),
            'return_to'   => request()->getRequestUri(),
        ]);
    }

    /**
     * @return array<string, string>
     */
    protected function resolveCallerDataForRubrica(TicketIntervento $intervento): array
    {
        $ticket = $intervento->ticket;
        $parsed = $this->extractCallerData((string) ($ticket?->descrizione ?? ''));

        $contatto     = $parsed['contatto'];
        $telefono     = $parsed['telefono'];
        $email        = '';
        $origine      = 'Descrizione ticket';
        $rubricaUrl   = null;
        $rubricaLabel = '';

        if ($ticket?->soggettoRichiedente) {
            $soggetto     = $ticket->soggettoRichiedente;
            $contatto     = trim((string) ($soggetto->ragione_sociale ?: trim(($soggetto->nome ?? '') . ' ' . ($soggetto->cognome ?? '')))) ?: $contatto;
            $telefono     = trim((string) ($soggetto->telefono ?? '')) ?: $telefono;
            $email        = trim((string) ($soggetto->email ?? ''));
            $origine      = 'Richiedente ticket';
            $rubricaUrl   = $this->buildRubricaUrlForCurrentUser((int) $soggetto->id);
            $rubricaLabel = trim((string) ($soggetto->categoria ?? ''));
        } elseif ($ticket?->apertoDaUser) {
            $contatto = trim((string) ($ticket->apertoDaUser->name ?? '')) ?: $contatto;
            $email    = trim((string) ($ticket->apertoDaUser->email ?? ''));
            $origine  = 'Utente apertura ticket';
        }

        $identityKey = '';
        if ($ticket?->soggetto_richiedente_id) {
            $identityKey = 'soggetto-' . (int) $ticket->soggetto_richiedente_id;
        } elseif ($email !== '') {
            $identityKey = 'email-' . Str::lower($email);
        } elseif ($telefono !== '') {
            $identityKey = 'phone-' . preg_replace('/\D+/', '', $telefono);
        }

        return [
            'contatto'      => $contatto !== '' ? $contatto : 'Contatto non identificato',
            'telefono'      => $telefono,
            'email'         => $email,
            'origine'       => $origine,
            'stabile'       => (string) ($ticket?->stabile?->denominazione ?? '-'),
            'rubrica_url'   => $rubricaUrl,
            'rubrica_label' => $rubricaLabel,
            'identity_key'  => $identityKey,
        ];
    }

    protected function buildRubricaUrlForCurrentUser(int $rubricaId, string $search = ''): ?string
    {
        $user = Auth::user();

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

        if ($user->hasAnyRole(['super-admin', 'admin', 'amministratore', 'collaboratore'])) {
            return \App\Filament\Pages\Gescon\RubricaUniversaleScheda::getUrl(['record' => $rubricaId], panel: 'admin-filament');
        }

        $url    = self::getUrl(['fornitore' => (int) ($this->fornitoreId ?? 0)], panel: 'admin-filament');
        $search = trim($search);

        return $search !== '' ? ($url . '?search=' . urlencode($search)) : $url;
    }

    /**
     * @return array<int, array<string, mixed>>
     */
    private function buildTicketFallbackRows(string $term = ''): array
    {
        $items = TicketIntervento::query()
            ->with(['ticket.stabile', 'ticket.soggettoRichiedente', 'ticket.apertoDaUser'])
            ->where('fornitore_id', $this->fornitoreId)
            ->latest('updated_at')
            ->limit(250)
            ->get();

        $grouped = [];

        foreach ($items as $intervento) {
            $contact = $this->resolveCallerDataForRubrica($intervento);
            $key     = $contact['identity_key'] !== '' ? $contact['identity_key'] : ('ticket-' . (int) $intervento->ticket_id);

            if ($term !== '') {
                $haystack = Str::lower(implode(' ', [$contact['contatto'], $contact['telefono'], $contact['email'], $contact['stabile'], $contact['origine']]));
                if (! Str::contains($haystack, $term)) {
                    continue;
                }
            }

            if (! isset($grouped[$key])) {
                $grouped[$key] = [
                    'id'                => 0,
                    'legacy_cliente_id' => 0,
                    'display_name'      => $contact['contatto'],
                    'phone'             => $contact['telefono'],
                    'phone_alt'         => '',
                    'email'             => $contact['email'],
                    'indirizzo'         => '',
                    'citta'             => '',
                    'provincia'         => '',
                    'rubrica_id'        => 0,
                    'rubrica_url'       => $contact['rubrica_url'],
                    'rubrica_label'     => $contact['rubrica_label'],
                    'totale_schede'     => 1,
                    'ultima_data'       => optional($intervento->updated_at)->format('d/m/Y') ?: '-',
                    'updated_at'        => optional($intervento->updated_at)->format('d/m/Y H:i') ?: '-',
                    'source'            => 'ticket_fallback',
                ];
                continue;
            }

            $grouped[$key]['totale_schede']++;
        }

        return array_values($grouped);
    }

    /**
     * @return array<string, mixed>|null
     */
    protected function resolveGoogleWorkspaceStatus(Fornitore $fornitore): ?array
    {
        $amministratore = $fornitore->amministratore;
        if (! $amministratore) {
            return null;
        }

        $account = app(GoogleAccountStore::class)->get($amministratore, 'fornitore-' . (int) $fornitore->id);

        if (! is_array($account)) {
            return [
                'connected'    => false,
                'email'        => '',
                'name'         => '',
                'connected_at' => '',
            ];
        }

        return [
            'connected'    => (bool) ($account['connected'] ?? false),
            'email'        => (string) ($account['email'] ?? ''),
            'name'         => (string) ($account['name'] ?? ''),
            'connected_at' => (string) ($account['connected_at'] ?? ''),
        ];
    }
}