<?php

namespace MintyPHP\Repository\CustomField;

use MintyPHP\DB;

/** Manages selected option links for user custom field values (atomic replace). */
class UserCustomFieldValueOptionRepository implements UserCustomFieldValueOptionRepositoryInterface
{
    public function replaceForValueId(int $valueId, array $optionIds): bool
    {
        if ($valueId <= 0) {
            return false;
        }
        $deleted = DB::delete('delete from user_custom_field_value_options where value_id = ?', (string) $valueId);
        if ($deleted === false) {
            return false;
        }

        $optionIds = array_values(array_unique(array_map('intval', $optionIds)));
        $optionIds = array_values(array_filter($optionIds, static fn ($id) => $id > 0));
        if (!$optionIds) {
            return true;
        }

        foreach ($optionIds as $optionId) {
            $inserted = DB::insert(
                'insert into user_custom_field_value_options (value_id, option_id, created) values (?,?,NOW())',
                (string) $valueId,
                (string) $optionId
            );
            if ($inserted === false) {
                return false;
            }
        }

        return true;
    }

    public function listOptionIdsByValueIds(array $valueIds): array
    {
        $valueIds = array_values(array_unique(array_map('intval', $valueIds)));
        $valueIds = array_values(array_filter($valueIds, static fn ($id) => $id > 0));
        if (!$valueIds) {
            return [];
        }

        $rows = DB::select(
            'select value_id, option_id from user_custom_field_value_options where value_id in (???)',
            $valueIds
        );
        if (!is_array($rows)) {
            return [];
        }

        $map = [];
        foreach ($rows as $row) {
            $data = $row['user_custom_field_value_options'] ?? $row;
            if (!is_array($data)) {
                continue;
            }
            $valueId = (int) ($data['value_id'] ?? 0);
            $optionId = (int) ($data['option_id'] ?? 0);
            if ($valueId <= 0 || $optionId <= 0) {
                continue;
            }
            $map[$valueId] ??= [];
            $map[$valueId][] = $optionId;
        }

        foreach ($map as &$ids) {
            $ids = array_values(array_unique(array_map('intval', $ids)));
            sort($ids, SORT_NUMERIC);
        }
        unset($ids);

        return $map;
    }
}