<?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 ?? ''),
            'cf'       => trim((string) ($rubrica->codice_fiscale ?? '')),
            'piva'     => trim((string) ($rubrica->partita_iva ?? '')),
            'note'     => Str::limit(trim((string) ($rubrica->note ?? '')), 100),
        ];
    }

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

        $query = RubricaUniversale::query()
            ->whereNull('deleted_at')
            ->where(function ($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])
                    ->orWhereRaw("LOWER(COALESCE(codice_fiscale, '')) LIKE ?", [$needle])
                    ->orWhereRaw("LOWER(COALESCE(partita_iva, '')) LIKE ?", [$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 . '%'])
                        ->orWhereRaw("REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(COALESCE(telefono_casa, ''), ' ', ''), '+', ''), '-', ''), '(', ''), ')', '') LIKE ?", ['%' . $digits . '%']);
                }
            })
            ->orderByRaw('CASE WHEN id = ? THEN 0 ELSE 1 END', [(int) ($selectedId ?? 0)])
            ->orderBy('ragione_sociale')
            ->orderBy('cognome')
            ->orderBy('nome')
            ->limit(80);

        if ($categories !== null && $categories !== []) {
            $query->whereIn('categoria', $categories);
        }

        if ($amministratoreId !== null && $amministratoreId > 0 && method_exists(new RubricaUniversale(), 'getTable')) {
            $query->where(function ($builder) use ($amministratoreId): void {
                $builder->where('amministratore_id', $amministratoreId)
                    ->orWhereNull('amministratore_id');
            });
        }

        $matches = $query->get();

        foreach ($matches as $rubrica) {
            $row          = $this->mapRubricaLookupRow($rubrica);
            $row['score'] = $this->scoreRubricaLookupMatch($row, $raw, $digits, $selectedId);
            $rows[]       = $row;
        }

        usort($rows, fn(array $left, array $right): int => ((int) $right['score']) <=> ((int) $left['score']));

        $rows = array_values(array_slice(array_map(function (array $row): array {
            unset($row['score']);

            return $row;
        }, $rows), 0, $limit));

        return $rows;
    }

    /**
     * @param  array<string,mixed>  $row
     */
    protected function scoreRubricaLookupMatch(array $row, string $raw, string $digits, ?int $selectedId = null): int
    {
        $score = (int) (($selectedId ?? 0) > 0 && (int) ($row['id'] ?? 0) === (int) $selectedId ? 1000 : 0);

        $haystack = mb_strtolower(implode(' ', array_filter([
            (string) ($row['label'] ?? ''),
            (string) ($row['email'] ?? ''),
            (string) ($row['phone'] ?? ''),
            (string) ($row['cf'] ?? ''),
            (string) ($row['piva'] ?? ''),
            (string) ($row['category'] ?? ''),
            (string) ($row['note'] ?? ''),
        ])));

        if ($raw !== '' && str_contains($haystack, mb_strtolower($raw))) {
            $score += 90;
        }

        if ($digits !== '') {
            $phoneDigits = preg_replace('/\D+/', '', (string) ($row['phone'] ?? '')) ?: '';
            if ($phoneDigits !== '' && str_contains($phoneDigits, $digits)) {
                $score += 70;
            }
        }

        return $score;
    }
}