<?php

namespace App\Filament\Pages\Condomini;

use App\Filament\Pages\UnitaImmobiliarePage;
use App\Models\UnitaImmobiliare;
use App\Models\User;
use App\Support\StabileContext;
use BackedEnum;
use Filament\Actions\Action;
use Filament\Pages\Page;
use Filament\Tables\Columns\IconColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Concerns\InteractsWithTable;
use Filament\Tables\Contracts\HasTable;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Schema as DbSchema;
use UnitEnum;

class UnitaImmobiliariArchivio extends Page implements HasTable
{
    use InteractsWithTable;

    protected static ?string $navigationLabel = 'Unità immobiliari';

    protected static ?string $title = 'Unità immobiliari';

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

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

    protected static ?int $navigationSort = 31;

    protected static ?string $slug = 'condomini/unita-immobiliari';

    protected string $view = 'filament.pages.condomini.unita-immobiliari-archivio';

    public static function canAccess(): bool
    {
        $user = Auth::user();
        return $user instanceof User
            && $user->hasAnyRole(['super-admin', 'admin', 'amministratore', 'collaboratore']);
    }

    public function mount(): void
    {
        $this->mountInteractsWithTable();
    }

    protected function getTableQuery(): Builder
    {
        $user = Auth::user();
        if (! $user instanceof User) {
            return UnitaImmobiliare::query()->whereRaw('1 = 0');
        }

        $activeStabileId = StabileContext::resolveActiveStabileId($user);
        if (! $activeStabileId) {
            return UnitaImmobiliare::query()->whereRaw('1 = 0');
        }

        $today = now()->toDateString();

        $rubricaNameSubquery = "(\n"
            . "    SELECT MIN(\n"
            . "        CASE\n"
            . "            WHEN ru.tipo_contatto = 'persona_giuridica' THEN ru.ragione_sociale\n"
            . "            ELSE CONCAT_WS(' ', ru.nome, ru.cognome)\n"
            . "        END\n"
            . "    )\n"
            . "    FROM rubrica_ruoli rr\n"
            . "    JOIN rubrica_universale ru ON ru.id = rr.rubrica_id\n"
            . "    WHERE rr.unita_immobiliare_id = unita_immobiliari.id\n"
            . "      AND rr.is_attivo = 1\n"
            . "      AND (rr.data_inizio IS NULL OR rr.data_inizio <= ?)\n"
            . "      AND (rr.data_fine IS NULL OR rr.data_fine >= ?)\n"
            . ")";

        $nominativoSortExpr = "COALESCE(\n"
            . "    CASE\n"
            . "        WHEN unita_immobiliari.denominazione IS NULL THEN NULL\n"
            . "        WHEN TRIM(unita_immobiliari.denominazione) = '' THEN NULL\n"
            . "        WHEN LOWER(TRIM(unita_immobiliari.denominazione)) = 'area condominiale' THEN NULL\n"
            . "        ELSE unita_immobiliari.denominazione\n"
            . "    END,\n"
            . "    $rubricaNameSubquery,\n"
            . "    unita_immobiliari.codice_unita\n"
            . ")";

        $stabileCols = ['id', 'codice_stabile', 'cod_stabile'];
        if (DbSchema::hasColumn('stabili', 'codice_operatore')) {
            $stabileCols[] = 'codice_operatore';
        }

        return UnitaImmobiliare::query()
            ->where('stabile_id', $activeStabileId)
            ->with([
                'stabile' => function ($q) use ($stabileCols) {
                    $q->select($stabileCols);
                },
                'rubricaRuoliAttivi.contatto:id,tipo_contatto,ragione_sociale,nome,cognome,codice_fiscale',
                'soggetti:id,nome,cognome,ragione_sociale,codice_fiscale',
            ])
            ->orderBy('palazzina')
            ->orderBy('scala')
            ->orderBy('interno')
            ->orderBy('id');
    }

    public function getUnitaCount(): int
    {
        $user = Auth::user();
        if (! $user instanceof User) {
            return 0;
        }

        $activeStabileId = StabileContext::resolveActiveStabileId($user);
        if (! $activeStabileId) {
            return 0;
        }

        return UnitaImmobiliare::query()
            ->where('stabile_id', $activeStabileId)
            ->count();
    }

    public function table(Table $table): Table
    {
        $unitaPageUrl = UnitaImmobiliarePage::getUrl(panel: 'admin-filament');

        return $table
            ->striped()
            ->columns([
                TextColumn::make('codice_unita')
                    ->label('Codice')
                    ->searchable()
                    ->sortable()
                    ->formatStateUsing(function ($state, UnitaImmobiliare $record): string {
                        $code = trim((string) ($state ?? ''));
                        if ($code === '') {
                            return '—';
                        }

                        $legacy = trim((string) ($record->stabile?->codice_stabile ?? ''));
                        $mnemo = trim((string) ($record->stabile?->codice_operatore ?? $record->stabile?->cod_stabile ?? ''));
                        if ($legacy !== '' && $mnemo !== '' && str_starts_with($code, $legacy . '-')) {
                            return $mnemo . substr($code, strlen($legacy));
                        }

                        return $code;
                    }),

                TextColumn::make('denominazione')
                    ->label('Nominativo')
                    ->searchable(query: function (Builder $query, string $search): Builder {
                        $s = trim($search);
                        if ($s === '') {
                            return $query;
                        }

                        return $query
                            ->where(function (Builder $q) use ($s): void {
                                $q->where('denominazione', 'like', '%' . $s . '%')
                                    ->orWhereHas('rubricaRuoliAttivi.contatto', function (Builder $qq) use ($s): void {
                                        $qq->where('ragione_sociale', 'like', '%' . $s . '%')
                                            ->orWhere('nome', 'like', '%' . $s . '%')
                                            ->orWhere('cognome', 'like', '%' . $s . '%')
                                            ->orWhere('codice_fiscale', 'like', '%' . $s . '%');
                                    })
                                    ->orWhereHas('soggetti', function (Builder $qq) use ($s): void {
                                        $qq->where('ragione_sociale', 'like', '%' . $s . '%')
                                            ->orWhere('cognome', 'like', '%' . $s . '%')
                                            ->orWhere('nome', 'like', '%' . $s . '%')
                                            ->orWhere('codice_fiscale', 'like', '%' . $s . '%');
                                    });
                            });
                    })
                    ->sortable(query: function (Builder $query, string $direction): Builder {
                        $today = now()->toDateString();

                        $rubricaNameSubquery = "(\n"
                            . "    SELECT MIN(\n"
                            . "        CASE\n"
                            . "            WHEN ru.tipo_contatto = 'persona_giuridica' THEN ru.ragione_sociale\n"
                            . "            ELSE CONCAT_WS(' ', ru.nome, ru.cognome)\n"
                            . "        END\n"
                            . "    )\n"
                            . "    FROM rubrica_ruoli rr\n"
                            . "    JOIN rubrica_universale ru ON ru.id = rr.rubrica_id\n"
                            . "    WHERE rr.unita_immobiliare_id = unita_immobiliari.id\n"
                            . "      AND rr.is_attivo = 1\n"
                            . "      AND (rr.data_inizio IS NULL OR rr.data_inizio <= ?)\n"
                            . "      AND (rr.data_fine IS NULL OR rr.data_fine >= ?)\n"
                            . ")";

                        $nominativoSortExpr = "COALESCE(\n"
                            . "    CASE\n"
                            . "        WHEN unita_immobiliari.denominazione IS NULL THEN NULL\n"
                            . "        WHEN TRIM(unita_immobiliari.denominazione) = '' THEN NULL\n"
                            . "        WHEN LOWER(TRIM(unita_immobiliari.denominazione)) = 'area condominiale' THEN NULL\n"
                            . "        ELSE unita_immobiliari.denominazione\n"
                            . "    END,\n"
                            . "    $rubricaNameSubquery,\n"
                            . "    unita_immobiliari.codice_unita\n"
                            . ")";

                        return $query->orderByRaw($nominativoSortExpr . ' ' . $direction, [$today, $today]);
                    })
                    ->state(function (UnitaImmobiliare $record): string {
                        $den = trim((string) ($record->denominazione ?? ''));
                        $isArea = $den !== '' && preg_match('/^\s*area\s+condominiale\s*$/i', $den);

                        if ($den !== '' && ! $isArea) {
                            return $den;
                        }

                        // Preferisci ruoli rubrica attivi: prima inquilino, poi condomino.
                        $ruoli = $record->rubricaRuoliAttivi ?? collect();
                        if ($ruoli && method_exists($ruoli, 'sortByDesc')) {
                            $ruoli = $ruoli->sortByDesc(fn($r) => (bool) ($r->is_preferito ?? false));
                        }

                        $isInquilino = function ($r): bool {
                            $k = strtolower(trim((string) ($r->ruolo_standard ?? '')));
                            return in_array($k, ['inquilino', 'locatario', 'conduttore'], true);
                        };
                        $isCondomino = function ($r): bool {
                            $k = strtolower(trim((string) ($r->ruolo_standard ?? '')));
                            return in_array($k, ['condomino', 'proprietario', 'comproprietario', 'nudo_proprietario', 'usufruttuario', 'usufrutto'], true);
                        };

                        $pick = $ruoli?->first(fn($r) => $isInquilino($r))
                            ?: $ruoli?->first(fn($r) => $isCondomino($r));

                        $nomeRub = trim((string) ($pick?->contatto?->nome_completo ?? ''));
                        if ($nomeRub !== '') {
                            return $nomeRub;
                        }

                        // Fallback proprietari da proprietà (soggetti): scegli il primo disponibile.
                        $soggetti = $record->soggetti ?? collect();
                        if ($soggetti && $soggetti->isNotEmpty()) {
                            $s = $soggetti->first();
                            $rs = trim((string) ($s?->ragione_sociale ?? ''));
                            if ($rs !== '') {
                                return $rs;
                            }
                            $full = trim((string) ($s?->nome ?? '') . ' ' . (string) ($s?->cognome ?? ''));
                            if ($full !== '') {
                                return $full;
                            }
                        }

                        return $den !== '' ? $den : '—';
                    })
                    ->wrap(),

                TextColumn::make('palazzina')
                    ->label('Pal.')
                    ->toggleable(),

                TextColumn::make('scala')
                    ->label('Scala')
                    ->toggleable(),

                TextColumn::make('piano')
                    ->label('Piano')
                    ->toggleable(),

                TextColumn::make('interno')
                    ->label('Int.')
                    ->formatStateUsing(function ($state, UnitaImmobiliare $record): string {
                        $interno = trim((string) ($state ?? ''));
                        if ($interno === '') {
                            return '—';
                        }

                        $legacy = trim((string) ($record->stabile?->codice_stabile ?? $record->stabile?->cod_stabile ?? ''));
                        $scala = trim((string) ($record->scala ?? ''));

                        if ($legacy !== '' && $scala !== '') {
                            $prefix = $legacy . '-' . $scala . '-';
                            if (str_starts_with($interno, $prefix)) {
                                $short = trim((string) substr($interno, strlen($prefix)));
                                return $short !== '' ? $short : $interno;
                            }
                        }

                        if ($record->codice_unita && $interno === $record->codice_unita && str_contains($interno, '-')) {
                            $pos = strrpos($interno, '-');
                            if ($pos !== false) {
                                $short = trim((string) substr($interno, $pos + 1));
                                return $short !== '' ? $short : $interno;
                            }
                        }

                        return $interno;
                    })
                    ->toggleable(),

                IconColumn::make('attiva')
                    ->label('Attiva')
                    ->boolean(),
            ])
            ->actions([
                Action::make('apri_dettaglio')
                    ->label('Apri')
                    ->icon('heroicon-o-arrow-right')
                    ->url(fn(UnitaImmobiliare $record) => $unitaPageUrl . '?unita_id=' . $record->id),
            ]);
    }
}