<?php

/**
 * @package     MokoSuiteCross
 * @subpackage  com_mokosuitecross
 * @author      Moko Consulting <hello@mokoconsulting.tech>
 * @copyright   Copyright (C) 2026 Moko Consulting. All rights reserved.
 * @license     GNU General Public License version 3 or later; see LICENSE
 * SPDX-License-Identifier: GPL-3.0-or-later
 */

namespace Joomla\Component\MokoSuiteCross\Administrator\Model;

defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Model\BaseDatabaseModel;

/**
 * Per-service analytics drill-down model.
 */
class ServiceStatsModel extends BaseDatabaseModel
{
    /**
     * Get the service ID from the request.
     *
     * @return  int
     */
    public function getServiceId(): int
    {
        return Factory::getApplication()->input->getInt('id', 0);
    }

    /**
     * Load a single service record by ID.
     *
     * @param   int  $id  Service ID
     *
     * @return  object|null
     */
    public function getService(int $id = 0): ?object
    {
        if ($id === 0) {
            $id = $this->getServiceId();
        }

        if ($id === 0) {
            return null;
        }

        $db    = $this->getDatabase();
        $query = $db->getQuery(true)
            ->select('*')
            ->from($db->quoteName('#__mokosuitecross_services'))
            ->where($db->quoteName('id') . ' = ' . (int) $id);

        $db->setQuery($query);

        return $db->loadObject() ?: null;
    }

    /**
     * Get post status counts for a specific service.
     *
     * @param   int  $serviceId  Service ID
     *
     * @return  object  Object with total, posted, failed, queued properties
     */
    public function getPostStats(int $serviceId): object
    {
        $db = $this->getDatabase();

        $stats = new \stdClass();

        foreach (['queued', 'posted', 'failed'] as $status) {
            $query = $db->getQuery(true)
                ->select('COUNT(*)')
                ->from($db->quoteName('#__mokosuitecross_posts'))
                ->where($db->quoteName('service_id') . ' = ' . (int) $serviceId)
                ->where($db->quoteName('status') . ' = ' . $db->quote($status));
            $db->setQuery($query);
            $stats->{$status} = (int) $db->loadResult();
        }

        $stats->total = $stats->queued + $stats->posted + $stats->failed;

        return $stats;
    }

    /**
     * Get daily post trend for a specific service.
     *
     * @param   int  $serviceId  Service ID
     * @param   int  $days       Number of days to look back
     *
     * @return  array  [['day' => '2026-05-28', 'posted' => N, 'failed' => N], ...]
     */
    public function getDailyTrend(int $serviceId, int $days = 30): array
    {
        $db = $this->getDatabase();

        $cutoff = Factory::getDate('now - ' . $days . ' days')->format('Y-m-d');

        $query = $db->getQuery(true)
            ->select([
                'DATE(' . $db->quoteName('created') . ') AS day',
                'SUM(CASE WHEN ' . $db->quoteName('status') . ' = ' . $db->quote('posted') . ' THEN 1 ELSE 0 END) AS posted',
                'SUM(CASE WHEN ' . $db->quoteName('status') . ' = ' . $db->quote('failed') . ' THEN 1 ELSE 0 END) AS failed',
                'COUNT(*) AS total',
            ])
            ->from($db->quoteName('#__mokosuitecross_posts'))
            ->where($db->quoteName('service_id') . ' = ' . (int) $serviceId)
            ->where('DATE(' . $db->quoteName('created') . ') >= ' . $db->quote($cutoff))
            ->group('DATE(' . $db->quoteName('created') . ')')
            ->order('day ASC');

        $db->setQuery($query);

        return $db->loadAssocList() ?: [];
    }

    /**
     * Get recent posts for a specific service with article titles.
     *
     * @param   int  $serviceId  Service ID
     * @param   int  $limit      Number of posts to return
     *
     * @return  array
     */
    public function getRecentPosts(int $serviceId, int $limit = 20): array
    {
        $db = $this->getDatabase();

        $query = $db->getQuery(true)
            ->select([
                $db->quoteName('p.id'),
                $db->quoteName('p.status'),
                $db->quoteName('p.posted_at'),
                $db->quoteName('p.created'),
                $db->quoteName('p.error_message'),
                $db->quoteName('p.retry_count'),
                $db->quoteName('c.title', 'article_title'),
            ])
            ->from($db->quoteName('#__mokosuitecross_posts', 'p'))
            ->join('LEFT', $db->quoteName('#__content', 'c')
                . ' ON ' . $db->quoteName('c.id') . ' = ' . $db->quoteName('p.article_id'))
            ->where($db->quoteName('p.service_id') . ' = ' . (int) $serviceId)
            ->order($db->quoteName('p.created') . ' DESC');

        $db->setQuery($query, 0, $limit);

        return $db->loadAssocList() ?: [];
    }

    /**
     * Get the most cross-posted articles for a specific service.
     *
     * @param   int  $serviceId  Service ID
     * @param   int  $limit      Number of articles to return
     *
     * @return  array
     */
    public function getTopArticles(int $serviceId, int $limit = 10): array
    {
        $db = $this->getDatabase();

        $query = $db->getQuery(true)
            ->select([
                $db->quoteName('c.id'),
                $db->quoteName('c.title'),
                'COUNT(*) AS post_count',
                'SUM(CASE WHEN ' . $db->quoteName('p.status') . ' = ' . $db->quote('posted') . ' THEN 1 ELSE 0 END) AS success_count',
            ])
            ->from($db->quoteName('#__mokosuitecross_posts', 'p'))
            ->join('INNER', $db->quoteName('#__content', 'c')
                . ' ON ' . $db->quoteName('c.id') . ' = ' . $db->quoteName('p.article_id'))
            ->where($db->quoteName('p.service_id') . ' = ' . (int) $serviceId)
            ->group($db->quoteName(['c.id', 'c.title']))
            ->order('post_count DESC');

        $db->setQuery($query, 0, $limit);

        return $db->loadAssocList() ?: [];
    }
}