<?php
namespace App\Services\Cti;

use App\Filament\Pages\Supporto\TicketMobile;
use App\Models\CommunicationMessage;
use App\Models\RubricaUniversale;
use App\Models\Soggetto;
use App\Models\User;
use App\Services\Anagrafiche\RubricaPhoneLookupService;

class LiveIncomingCallService
{
    /**
     * @return array<string,mixed>|null
     */
    public function getForUser(User $user): ?array
    {
        $userExtension     = trim((string) ($user->pbx_extension ?? ''));
        $watchedExtensions = app(PbxRoutingService::class)->getWatchedExtensionsForUser($user);
        $popupRestricted   = (bool) ($user->pbx_popup_enabled ?? false) && count($watchedExtensions) > 0;

        $candidates = CommunicationMessage::query()
            ->whereIn('channel', ['smdr', 'panasonic_csta'])
            ->where('direction', 'inbound')
            ->whereNotNull('received_at')
            ->where('received_at', '>=', now()->subMinutes(8))
            ->where(function ($query): void {
                $query->whereNull('metadata->outcome')
                    ->orWhere(function ($inner): void {
                        $inner->where('metadata->outcome', 'not like', '%miss%')
                            ->where('metadata->outcome', 'not like', '%no_answer%');
                    });
            })
            ->where(function ($query): void {
                $query->whereNull('message_text')
                    ->orWhere('message_text', 'not like', '%persa%');
            })
            ->when($popupRestricted, function ($query) use ($watchedExtensions): void {
                $query->whereIn('target_extension', $watchedExtensions);
            })
            ->latest('received_at')
            ->limit(30)
            ->get(['id', 'channel', 'status', 'phone_number', 'target_extension', 'received_at', 'message_text', 'metadata']);

        $latest = $candidates
            ->sortByDesc(function (CommunicationMessage $message): int {
                $metadata     = is_array($message->metadata) ? $message->metadata : [];
                $eventType    = strtolower(trim((string) ($metadata['event_type'] ?? '')));
                $endedAt      = trim((string) ($metadata['ended_at'] ?? ''));
                $isActiveCsta = (string) $message->channel === 'panasonic_csta'
                && (string) ($message->status ?? '') !== 'completed'
                && $endedAt === ''
                && ! in_array($eventType, ['connectioncleared', 'cleared', 'released'], true);

                if ($isActiveCsta) {
                    return 5000000000 + (int) ($message->received_at?->getTimestamp() ?? 0);
                }

                $isRecentCsta = (string) $message->channel === 'panasonic_csta'
                && (int) ($message->received_at?->getTimestamp() ?? 0) >= now()->subSeconds(45)->getTimestamp();

                if ($isRecentCsta) {
                    return 4000000000 + (int) ($message->received_at?->getTimestamp() ?? 0);
                }

                return 1000000000 + (int) ($message->received_at?->getTimestamp() ?? 0);
            })
            ->first();

        if (! $latest) {
            return null;
        }

        $phone = $this->normalizePhoneDigits((string) ($latest->phone_number ?? ''));
        if ($phone === '') {
            $phone = $this->normalizePhoneDigits((string) data_get($latest->metadata, 'smdr.dial_number', ''));
        }

        if ($phone === '') {
            return null;
        }

        $rubrica  = $this->matchRubricaByPhone($phone);
        $soggetto = $this->matchSoggetto($rubrica, $phone);

        return [
            'message_id'           => (int) $latest->id,
            'phone'                => $phone,
            'received_at'          => optional($latest->received_at)->format('d/m/Y H:i:s'),
            'line'                 => (string) ($latest->message_text ?? ''),
            'target_extension'     => (string) ($latest->target_extension ?? ''),
            'rubrica_id'           => (int) ($rubrica?->id ?? 0),
            'rubrica_nome'         => (string) ($rubrica?->nome_completo ?: $rubrica?->ragione_sociale ?: ''),
            'soggetto_id'          => (int) ($soggetto?->id ?? 0),
            'can_click_to_call'    => (bool) ($user->pbx_click_to_call_enabled ?? false) && $userExtension !== '',
            'ticket_mobile_url'    => TicketMobile::getUrl([
                'live_phone'      => $phone,
                'live_message_id' => (int) $latest->id,
                'live_note'       => (string) ($latest->message_text ?? ''),
            ], panel: 'admin-filament'),
            'rubrica_url'          => (int) ($rubrica?->id ?? 0) > 0
                ? \App\Filament\Pages\Gescon\RubricaUniversaleScheda::getUrl(['record' => (int) $rubrica->id], panel : 'admin-filament')
                : null,
            'estratto_conto_url'   => (int) ($soggetto?->id ?? 0) > 0
                ? \App\Filament\Pages\Contabilita\EstrattoContoSoggetto::getUrl(['record' => (int) $soggetto->id], panel : 'admin-filament')
                : null,
            'post_it_redirect_url' => TicketMobile::getUrl([
                'live_phone'      => $phone,
                'live_message_id' => (int) $latest->id,
                'live_note'       => (string) ($latest->message_text ?? ''),
                'live_action'     => 'post-it',
            ], panel: 'admin-filament'),
        ];
    }

    private function normalizePhoneDigits(string $value): string
    {
        return preg_replace('/\D+/', '', $value) ?: '';
    }

    private function matchRubricaByPhone(string $digits): ?RubricaUniversale
    {
        return app(RubricaPhoneLookupService::class)->findByPhone($digits);
    }

    private function matchSoggetto(?RubricaUniversale $rubrica, string $phone): ?Soggetto
    {
        if ($rubrica) {
            $cf = trim((string) ($rubrica->codice_fiscale ?? ''));
            if ($cf !== '') {
                $found = Soggetto::query()->where('codice_fiscale', $cf)->first();
                if ($found) {
                    return $found;
                }
            }

            $piva = trim((string) ($rubrica->partita_iva ?? ''));
            if ($piva !== '') {
                $found = Soggetto::query()->where('partita_iva', $piva)->first();
                if ($found) {
                    return $found;
                }
            }
        }

        $tail = strlen($phone) >= 7 ? substr($phone, -7) : $phone;
        if ($tail === '') {
            return null;
        }

        return Soggetto::query()->where('telefono', 'like', '%' . $tail . '%')->first();
    }
}