<?php
namespace App\Support\Livewire;

use App\Models\RubricaUniversale;
use BackedEnum;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;

trait SupportsRubricaLookup
{
    /**
     * Normalizza input Livewire eterogenei in una stringa di ricerca stabile.
     */
    protected function normalizeRubricaLookupText($value): string
    {
        if (is_array($value)) {
            $value = Arr::first(Arr::flatten($value));
        }

        if ($value instanceof BackedEnum) {
            $value = $value->value;
        }

        if (! is_scalar($value) && $value !== null) {
            return '';
        }

        return trim((string) ($value ?? ''));
    }

    protected function normalizeRubricaLookupId($value): ?int
    {
        $normalized = $this->normalizeRubricaLookupText($value);
        if ($normalized === '' || ! is_numeric($normalized)) {
            return null;
        }

        $id = (int) $normalized;
        return $id > 0 ? $id : null;
    }

    protected function formatRubricaLookupLabel(?RubricaUniversale $rubrica): string
    {
        if (! $rubrica instanceof RubricaUniversale) {
            return '';
        }

        $label = trim((string) ($rubrica->ragione_sociale ?: $rubrica->nome_completo));
        return $label !== '' ? $label : ('Rubrica #' . (int) $rubrica->id);
    }

    /**
     * Mappa una riga rubrica in un payload leggero e riusabile nelle dropdown live.
     *
     * @return array<string,mixed>
     */
    protected function mapRubricaLookupRow(RubricaUniversale $rubrica): array
    {
        $phone = trim((string) ($rubrica->telefono_ufficio ?: $rubrica->telefono_cellulare ?: $rubrica->telefono_casa));

        return [
            'id'       => (int) $rubrica->id,
            'label'    => $this->formatRubricaLookupLabel($rubrica),
            'email'    => trim((string) ($rubrica->email ?? '')),
            'phone'    => $phone,
            'category' => (string) ($rubrica->categoria ?? ''),
            'note'     => Str::limit(trim((string) ($rubrica->note ?? '')), 100),
        ];
    }

    /**
     * Ricerca libera su rubrica con deduplica label e fallback sulla selezione corrente.
     *
     * @param  array<int,string>  $categories
     * @return array<int,array<string,mixed>>
     */
    protected function searchRubricaLookupMatches(string $raw, ?int $selectedId = null, array $categories = ['assicurazione', 'fornitore', 'altro'], int $limit = 12): array
    {
        $raw = $this->normalizeRubricaLookupText($raw);

        if ($raw === '') {
            if (($selectedId ?? 0) > 0) {
                $selected = RubricaUniversale::query()->find($selectedId);
                return $selected instanceof RubricaUniversale ? [$this->mapRubricaLookupRow($selected)] : [];
            }

            return [];
        }

        $needle = '%' . mb_strtolower($raw) . '%';
        $digits = preg_replace('/\D+/', '', $raw) ?: '';
        $seen   = [];
        $rows   = [];

        $matches = RubricaUniversale::query()
            ->whereNull('deleted_at')
            ->whereIn('categoria', $categories)
            ->where(function ($query) use ($needle, $digits): void {
                $query->whereRaw("LOWER(COALESCE(ragione_sociale, '')) LIKE ?", [$needle])
                    ->orWhereRaw("LOWER(COALESCE(nome, '')) LIKE ?", [$needle])
                    ->orWhereRaw("LOWER(COALESCE(cognome, '')) LIKE ?", [$needle])
                    ->orWhereRaw("LOWER(COALESCE(email, '')) LIKE ?", [$needle])
                    ->orWhereRaw("LOWER(COALESCE(note, '')) LIKE ?", [$needle]);

                if ($digits !== '') {
                    $query->orWhereRaw("REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(COALESCE(telefono_ufficio, ''), ' ', ''), '+', ''), '-', ''), '(', ''), ')', '') LIKE ?", ['%' . $digits . '%'])
                        ->orWhereRaw("REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(COALESCE(telefono_cellulare, ''), ' ', ''), '+', ''), '-', ''), '(', ''), ')', '') LIKE ?", ['%' . $digits . '%']);
                }
            })
            ->orderBy('ragione_sociale')
            ->orderBy('cognome')
            ->orderBy('nome')
            ->limit(80)
            ->get();

        foreach ($matches as $rubrica) {
            $row = $this->mapRubricaLookupRow($rubrica);
            $key = mb_strtolower(trim((string) $row['label']));

            if ($key === '' || isset($seen[$key])) {
                continue;
            }

            $seen[$key] = true;
            $rows[]     = $row;

            if (count($rows) >= $limit) {
                break;
            }
        }

        return $rows;
    }
}