<?php
/**
 * @brief periodical, a plugin for Dotclear 2
 * 
 * @package Dotclear
 * @subpackage Plugin
 * 
 * @author Jean-Christian Denis and contributors
 * 
 * @copyright Jean-Christian Denis
 * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
 */

if (!defined('DC_CONTEXT_ADMIN')) {
    return null;
}

dcPage::check('usage,contentadmin');

# Objects
$per = new periodical($core);

# Default values
$action = isset($_POST['action']) ? $_POST['action'] : '';

############################################################
#
# One period
#
############################################################

if ($_REQUEST['part'] == 'period') {

    $starting_script = '';

    # Default value for period
    $period_id      = null;
    $period_title   = __('One post per day');
    $period_pub_nb  = 1;
    $period_pub_int = 'day';
    $period_curdt   = date('Y-m-d H:i:00', time());
    $period_enddt   = date('Y-m-d H:i:00', time() + 31536000); //one year

    # Get period
    if (!empty($_REQUEST['period_id'])) {
        $rs = $per->getPeriods([
            'periodical_id' => $_REQUEST['period_id']
        ]);
        if ($rs->isEmpty()) {
            $core->error->add(__('This period does not exist.'));
            $period_id = null;
        } else {
            $period_id      = $rs->periodical_id;
            $period_title   = $rs->periodical_title;
            $period_pub_nb  = $rs->periodical_pub_nb;
            $period_pub_int = $rs->periodical_pub_int;
            $period_curdt   = date('Y-m-d H:i', strtotime($rs->periodical_curdt));
            $period_enddt   = date('Y-m-d H:i', strtotime($rs->periodical_enddt));
        }
    }

    # Set period
    if ($action == 'setperiod') {
        # Get POST values
        if (!empty($_POST['period_title'])) {
            $period_title = $_POST['period_title'];
        }
        if (!empty($_POST['period_pub_nb'])) {
            $period_pub_nb = abs((integer) $_POST['period_pub_nb']);
        }
        if (!empty($_POST['period_pub_int']) 
            && in_array($_POST['period_pub_int'], $per->getTimesCombo())
        ) {
            $period_pub_int = $_POST['period_pub_int'];
        }
        if (!empty($_POST['period_curdt'])) {
            $period_curdt = date('Y-m-d H:i:00', strtotime($_POST['period_curdt']));
        }
        if (!empty($_POST['period_enddt'])) {
            $period_enddt = date('Y-m-d H:i:00', strtotime($_POST['period_enddt']));
        }

        # Check period title and dates
        $old_titles = $per->getPeriods([
            'periodical_title' => $period_title
        ]);
        if (!$old_titles->isEmpty()) {
            while($old_titles->fetch()) {
                if (!$period_id || $old_titles->periodical_id != $period_id) {
                    $core->error->add(__('Period title is already taken'));
                }
            }
        }
        if (empty($period_title)) {
            $core->error->add(__('Period title is required'));
        }
        if (strtotime($period_curdt) > strtotime($period_enddt)) {
            $core->error->add(__('Start date must be older than end date'));
        }

        # If no error, set period
        if (!$core->error->flag()) {
            $cur = $per->openCursor();
            $cur->periodical_title   = $period_title;
            $cur->periodical_curdt   = $period_curdt;
            $cur->periodical_enddt   = $period_enddt;
            $cur->periodical_pub_int = $period_pub_int;
            $cur->periodical_pub_nb  = $period_pub_nb;

            # Update period
            if ($period_id) {
                $per->updPeriod($period_id, $cur);

                dcPage::addSuccessNotice(
                    __('Period successfully updated.')
                );
            # Create period
            } else {
                $period_id = $per->addPeriod($cur);

                dcPage::addSuccessNotice(
                    __('Period successfully created.')
                );
            }

            if (!empty($_POST['redir'])) {
                http::redirect($_POST['redir']);
            } else {
                $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'period', 'period_id' => $period_id], '#period');
            }
        }
    }

    # Actions on related posts
    if (!$core->error->flag() && $period_id && $action && !empty($_POST['periodical_entries'])) {
        # Publish posts
        if ($action == 'publish') {
            try {
                foreach($_POST['periodical_entries'] as $id) {
                    $id = (integer) $id;
                    $core->blog->updPostStatus($id, 1);
                    $per->delPost($id);
                }

                dcPage::addSuccessNotice(
                    __('Entries successfully published.')
                );

                if (!empty($_POST['redir'])) {
                    http::redirect($_POST['redir']);
                } else {
                    $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'period', 'period_id' => $period_id], '#posts');
                }
            } catch (Exception $e) {
                $core->error->add($e->getMessage());
            }
        }

        # Unpublish posts
        if ($action == 'unpublish') {
            try {
                foreach($_POST['periodical_entries'] as $id) {
                    $id = (integer) $id;
                    $core->blog->updPostStatus($id,0);
                    $per->delPost($id);
                }

                dcPage::addSuccessNotice(
                    __('Entries successfully unpublished.')
                );

                if (!empty($_POST['redir'])) {
                    http::redirect($_POST['redir']);
                } else {
                    $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'period', 'period_id' => $period_id], '#posts');
                }
            } catch (Exception $e) {
                $core->error->add($e->getMessage());
            }
        }

        # Remove posts from periodical
        if ($action == 'remove_post_periodical') {
            try {
                foreach($_POST['periodical_entries'] as $id) {
                    $id = (integer) $id;
                    $per->delPost($id);
                }

                dcPage::addSuccessNotice(
                    __('Entries successfully removed.')
                );

                if (!empty($_POST['redir'])) {
                    http::redirect($_POST['redir']);
                } else {
                    $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'period', 'period_id' => $period_id], '#posts');
                }
            } catch (Exception $e) {
                $core->error->add($e->getMessage());
            }
        }
    }

    # Prepare combos for posts list
    if ($period_id) {
        # Filters
        $post_filter = new adminPostFilter($core);
        $post_filter->add('part', 'period');

        $params = $post_filter->params();
        $params['periodical_id'] = $period_id;
        $params['no_content']    = true;

        # Get posts
        try {
            $posts = $per->getPosts($params);
            $counter = $per->getPosts($params, true);
            $post_list = new adminPeriodicalList($core, $posts, $counter->f(0));
        } catch (Exception $e) {
            $core->error->add($e->getMessage());
        }

        $starting_script =
            dcPage::jsLoad('index.php?pf=periodical/js/checkbox.js') .
            $post_filter->js($core->adminurl->get('admin.plugin.periodical', ['part' => 'period', 'period_id' => $period_id], '&').'#posts');
    }

    # Display
    echo '
    <html><head><title>' . __('Periodical') . '</title>' .
    dcPage::jsLoad('index.php?pf=periodical/js/dates.js') .
    $starting_script .
    dcPage::jsDatePicker() .
    dcPage::jsPageTabs() .
    '</head>
    <body>';

    echo
    dcPage::breadcrumb([
            html::escapeHTML($core->blog->name) => '',
            __('Periodical') => $p_url . '&amp;part=periods',
            (null === $period_id ? __('New period') : __('Edit period')) => ''
    ]) .
    dcPage::notices();

    # Period form
    echo '
    <div id="period"><h3>' . (null === $period_id ? __('New period') : __('Edit period')) . '</h3>
    <form method="post" action="' . $p_url . '">

    <p><label for="period_title">' . __('Title:') . '</label>' .
    form::field('period_title', 60, 255, html::escapeHTML($period_title), 'maximal') . '</p>

    <div class="two-boxes">

    <p><label for="period_curdt">' . __('Next update:') . '</label>' .
    form::field('period_curdt', 16, 16, date('Y-m-d H:i', strtotime($period_curdt))) . '</p>

    <p><label for="period_enddt">' . __('End date:') . '</label>' .
    form::field('period_enddt', 16, 16, date('Y-m-d H:i', strtotime($period_enddt))) . '</p>

    </div><div class="two-boxes">

    <p><label for="period_pub_int">' . __('Publication frequency:') . '</label>' .
    form::combo('period_pub_int',$per->getTimesCombo(), $period_pub_int) . '</p>

    <p><label for="period_pub_nb">' . __('Number of entries to publish every time:') . '</label>' .
    form::number('period_pub_nb', ['min' => 1, 'max' => 20, 'default' => $period_pub_nb]) . '</p>

    </div>

    <div class="clear">
    <p><input type="submit" name="save" value="' . __('Save') . '" />' .
    $core->formNonce() .
    form::hidden(['action'], 'setperiod') .
    form::hidden(['period_id'], $period_id) .
    form::hidden(['part'], 'period') .'
    </p>
    </div>
    </form>
    </div>';

    if ($period_id && !$core->error->flag()) {

        # Actions combo box
        $combo_action = [];
        $combo_action[__('Entries')][__('Publish')] = 'publish';
        $combo_action[__('Entries')][__('Unpublish')] = 'unpublish';
        $combo_action[__('Periodical')][__('Remove from periodical')] = 'remove_post_periodical';

        $base_url = $p_url .
            '&amp;period_id=' .$period_id .
            '&amp;part=period' .
            '&amp;user_id=' . $post_filter->user_id .
            '&amp;cat_id=' . $post_filter->cat_id .
            '&amp;status=' . $post_filter->status .
            '&amp;selected=' . $post_filter->selected .
            '&amp;attachment=' . $post_filter->attachment .
            '&amp;month=' . $post_filter->month .
            '&amp;lang=' . $post_filter->lang .
            '&amp;sortby=' . $post_filter->sortby .
            '&amp;order=' . $post_filter->order .
            '&amp;nb=' . $post_filter->nb .
            '&amp;page=%s' .
            '#posts';

        echo '
        <div id="posts"><h3>' . __('Entries linked to this period') . '</h3>';

        # Filters
        $post_filter->display(['admin.plugin.periodical', '#posts'], 
            $core->adminurl->getHiddenFormFields('admin.plugin.periodical', [
                'period_id' => $period_id,
                'part'      => 'period'
            ])
        );

        # Posts list
        echo $post_list->postDisplay($post_filter, $base_url, 
            '<form action="' . $p_url . '" method="post" id="form-entries">' .

            '%s' .

            '<div class="two-cols">' .
            '<p class="col checkboxes-helpers"></p>' .

            '<p class="col right">' . __('Selected entries action:') . ' ' .
            form::combo('action', $combo_action) .
            '<input type="submit" value="' . __('ok') . '" /></p>' .
            $core->adminurl->getHiddenFormFields('admin.plugin.periodical', array_merge($post_filter->values(), [
                'period_id' => $period_id,
                'redir'     => sprintf($base_url, $post_filter->page)
            ])) .
            $core->formNonce() .
            '</div>' .
            '</form>'
        );

        echo
        '</div>';
    }

############################################################
#
# All periods
#
############################################################

} else {

    # Delete periods and related posts links
    if ($action == 'deleteperiods' && !empty($_POST['periods'])) {
        try {
            foreach($_POST['periods'] as $id) {
                $id = (integer) $id;
                $per->delPeriodPosts($id);
                $per->delPeriod($id);
            }

            dcPage::addSuccessNotice(
                __('Periods removed.')
            );

            if (!empty($_POST['redir'])) {
                http::redirect($_POST['redir']);
            } else {
                $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'periods']);
            }
        } catch (Exception $e) {
            $core->error->add($e->getMessage());
        }
    }
    # Delete periods related posts links (without delete periods)
    if ($action == 'emptyperiods' && !empty($_POST['periods'])) {
        try {
            foreach($_POST['periods'] as $id) {
                $id = (integer) $id;
                $per->delPeriodPosts($id);
            }

            dcPage::addSuccessNotice(
                __('Periods emptied.')
            );

            if (!empty($_POST['redir'])) {
                http::redirect($_POST['redir']);
            } else {
                $core->adminurl->redirect('admin.plugin.periodical', ['part' => 'periods']);
            }
        } catch (Exception $e) {
            $core->error->add($e->getMessage());
        }
    }

    $combo_action = [
        __('empty periods')  => 'emptyperiods',
        __('delete periods') => 'deleteperiods'
    ];

    # Filters
    $p_filter = new adminGenericFilter($core, 'periodical');
    $p_filter->add('part', 'periods');

    $params = $p_filter->params();

    # Get periods
    try {
        $periods = $per->getPeriods($params);
        $counter = $per->getPeriods($params, true);
        $period_list = new adminPeriodicalList($core, $periods, $counter->f(0));
    } catch (Exception $e) {
        $core->error->add($e->getMessage());
    }

    # Display
    echo 
    '<html><head><title>' . __('Periodical') . '</title>' .
    dcPage::jsLoad('index.php?pf=periodical/js/checkbox.js') .
    $p_filter->js($core->adminurl->get('admin.plugin.periodical', ['part' => 'periods'])) .
    '</head>' .
    '<body>' .

    dcPage::breadcrumb([
            html::escapeHTML($core->blog->name) => '',
            __('Periodical') => ''
    ]) .
    dcPage::notices() .

    '<p class="top-add">
    <a class="button add" href="' . $p_url . '&amp;part=period">' . __('New period') . '</a>
    </p>';

    # Filters
    $p_filter->display('admin.plugin.periodical', form::hidden('p', 'periodical') . form::hidden('part', 'periods'));

    # Periods list
    $period_list->periodDisplay($p_filter,
        '<form action="' . $p_url . '" method="post" id="form-periods">' .

        '%s' .

        '<div class="two-cols">' .
        '<p class="col checkboxes-helpers"></p>' .

        '<p class="col right">' . __('Selected periods action:') . ' ' .
        form::combo('action', $combo_action) .
        '<input type="submit" value="' . __('ok') . '" /></p>' .
        $core->adminurl->getHiddenFormFields('admin.plugin.periodical', array_merge(['p' =>  'periodical'], $p_filter->values(true))) . 
        $core->formNonce() .
        '</div>' .
        '</form>'
    );

}

dcPage::helpBlock('periodical');

echo '</body></html>';