<?php

declare(strict_types=1);

namespace Steuerkram\Models;

use Steuerkram\Database;

class Buchungsvorlage
{
    public static function findAll(): array
    {
        return Database::fetchAll(
            'SELECT * FROM buchungsvorlagen WHERE aktiv = 1 ORDER BY sort_order, name'
        );
    }

    public static function findAllIncludingInactive(): array
    {
        return Database::fetchAll(
            'SELECT * FROM buchungsvorlagen ORDER BY sort_order, name'
        );
    }

    public static function find(int $id): array|false
    {
        return Database::fetchOne('SELECT * FROM buchungsvorlagen WHERE id = ?', [$id]);
    }

    public static function getFelder(int $vorlageId): array
    {
        return Database::fetchAll(
            'SELECT * FROM buchungsvorlage_felder
             WHERE vorlage_id = ?
             ORDER BY gruppe_nr, sort_order',
            [$vorlageId]
        );
    }

    public static function getRegeln(int $vorlageId): array
    {
        $rows = Database::fetchAll(
            'SELECT * FROM buchungsvorlage_regeln
             WHERE vorlage_id = ?
             ORDER BY sort_order',
            [$vorlageId]
        );
        foreach ($rows as &$row) {
            $row['buchungen'] = json_decode($row['buchungen'], true) ?? [];
        }
        return $rows;
    }

    public static function create(array $data): int
    {
        Database::execute(
            'INSERT INTO buchungsvorlagen (name, beschreibung, standard_lieferant, aktiv, sort_order)
             VALUES (?, ?, ?, ?, ?)',
            [
                trim($data['name']),
                $data['beschreibung'] ?? null,
                $data['standard_lieferant'] !== '' ? trim($data['standard_lieferant'] ?? '') : null,
                isset($data['aktiv']) ? (int)$data['aktiv'] : 1,
                (int)($data['sort_order'] ?? 0),
            ]
        );
        return (int)Database::lastInsertId();
    }

    public static function update(int $id, array $data): void
    {
        Database::execute(
            'UPDATE buchungsvorlagen
             SET name = ?, beschreibung = ?, standard_lieferant = ?, aktiv = ?, sort_order = ?
             WHERE id = ?',
            [
                trim($data['name']),
                $data['beschreibung'] ?? null,
                $data['standard_lieferant'] !== '' ? trim($data['standard_lieferant'] ?? '') : null,
                isset($data['aktiv']) ? (int)$data['aktiv'] : 1,
                (int)($data['sort_order'] ?? 0),
                $id,
            ]
        );
    }

    public static function delete(int $id): void
    {
        Database::execute('DELETE FROM buchungsvorlagen WHERE id = ?', [$id]);
    }

    public static function saveFelderForVorlage(int $vorlageId, array $felder): void
    {
        Database::execute('DELETE FROM buchungsvorlage_felder WHERE vorlage_id = ?', [$vorlageId]);
        foreach ($felder as $i => $f) {
            Database::execute(
                'INSERT INTO buchungsvorlage_felder
                 (vorlage_id, gruppe_nr, sort_order, feldname, label, typ, ust_satz, meta_key)
                 VALUES (?, ?, ?, ?, ?, ?, ?, ?)',
                [
                    $vorlageId,
                    (int)($f['gruppe_nr'] ?? 1),
                    (int)($f['sort_order'] ?? ($i * 10)),
                    trim($f['feldname']),
                    trim($f['label']),
                    $f['typ'],
                    isset($f['ust_satz']) && $f['ust_satz'] !== '' ? (float)$f['ust_satz'] : null,
                    $f['meta_key'] !== '' ? $f['meta_key'] : null,
                ]
            );
        }
    }

    public static function saveRegelnForVorlage(int $vorlageId, array $regeln): void
    {
        Database::execute('DELETE FROM buchungsvorlage_regeln WHERE vorlage_id = ?', [$vorlageId]);
        foreach ($regeln as $i => $r) {
            Database::execute(
                'INSERT INTO buchungsvorlage_regeln
                 (vorlage_id, sort_order, bedingung_feld, bedingung_op, buchungen)
                 VALUES (?, ?, ?, ?, ?)',
                [
                    $vorlageId,
                    (int)($r['sort_order'] ?? ($i * 10)),
                    trim($r['bedingung_feld']),
                    $r['bedingung_op'] ?? 'neq_zero',
                    json_encode($r['buchungen'] ?? []),
                ]
            );
        }
    }
}