<?php

namespace MintyPHP\Module\Notifications\Repository;

use MintyPHP\DB;
use MintyPHP\Repository\Support\RepositoryArrayHelper;

class NotificationRepository implements NotificationRepositoryInterface
{
    private function unwrapList(mixed $rows): array
    {
        return RepositoryArrayHelper::unwrapList($rows, 'user_notifications');
    }

    public function create(array $data): int|false
    {
        $result = DB::insert(
            'insert into user_notifications (recipient_user_id, tenant_id, type, title, body, link, data, created) values (?, ?, ?, ?, ?, ?, ?, NOW())',
            (string) ($data['recipient_user_id'] ?? 0),
            $data['tenant_id'] !== null ? (string) $data['tenant_id'] : null,
            (string) ($data['type'] ?? ''),
            (string) ($data['title'] ?? ''),
            $data['body'] ?? null,
            $data['link'] ?? null,
            isset($data['data']) ? json_encode($data['data'], JSON_THROW_ON_ERROR) : null
        );

        return is_int($result) && $result > 0 ? $result : false;
    }

    public function listByUser(int $userId, int $limit, int $offset): array
    {
        if ($userId <= 0) {
            return [];
        }

        $limit = max(1, min($limit, 100));
        $offset = max(0, $offset);

        $rows = DB::select(
            'select id, type, title, body, link, is_read, created from user_notifications where recipient_user_id = ? order by created desc limit ? offset ?',
            (string) $userId,
            (string) $limit,
            (string) $offset
        );

        return $this->unwrapList($rows);
    }

    public function countUnreadByUser(int $userId): int
    {
        if ($userId <= 0) {
            return 0;
        }

        $count = DB::selectValue(
            'select count(*) from user_notifications where recipient_user_id = ? and is_read = 0',
            (string) $userId
        );

        return (int) $count;
    }

    public function markRead(int $id, int $userId): bool
    {
        if ($id <= 0 || $userId <= 0) {
            return false;
        }

        $affected = DB::update(
            'update user_notifications set is_read = 1, read_at = NOW() where id = ? and recipient_user_id = ? and is_read = 0',
            (string) $id,
            (string) $userId
        );

        return is_int($affected) && $affected > 0;
    }

    public function markAllReadByUser(int $userId): int
    {
        if ($userId <= 0) {
            return 0;
        }

        $affected = DB::update(
            'update user_notifications set is_read = 1, read_at = NOW() where recipient_user_id = ? and is_read = 0',
            (string) $userId
        );

        return is_int($affected) ? $affected : 0;
    }

    public function delete(int $id, int $userId): bool
    {
        if ($id <= 0 || $userId <= 0) {
            return false;
        }

        $affected = DB::delete(
            'delete from user_notifications where id = ? and recipient_user_id = ?',
            (string) $id,
            (string) $userId
        );

        return is_int($affected) && $affected > 0;
    }

    public function deleteAllByUser(int $userId): int
    {
        if ($userId <= 0) {
            return 0;
        }

        $affected = DB::delete(
            'delete from user_notifications where recipient_user_id = ?',
            (string) $userId
        );

        return is_int($affected) ? $affected : 0;
    }

    public function purgeReadOlderThanDays(int $days): int
    {
        if ($days <= 0) {
            return 0;
        }

        $affected = DB::delete(
            'delete from user_notifications where is_read = 1 and read_at < DATE_SUB(NOW(), INTERVAL ? DAY)',
            (string) $days
        );

        return is_int($affected) ? $affected : 0;
    }
}