افزونه مدیریت پروژه در وردپرس

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<?php
/*
Plugin Name: دفترچه یادداشت وردپرس
Plugin URI: https://Mrbarati.com
Description: ویجت پیشخوان: یادداشت، آب و هوا، اوقات شرعی و تقویم ساده — نسخه نهایی با تنظیمات کاربر.
Version: 1.0.0
Author: مهندس براتی
Author URI: https://Mrbarati.com
License: GPLv2 or later
*/

if (!defined('ABSPATH')) exit;

class Notex_Tools_Wp_Free {

    private $cities_data = [];

    public function __construct() {
        $this->cities_data = [
            'Arak' => 'اراک', 'Ardabil' => 'اردبیل', 'Urmia' => 'ارومیه', 'Isfahan' => 'اصفهان',
            'Ahvaz' => 'اهواز', 'Ilam' => 'ایلام', 'Bojnurd' => 'بجنورد', 'BandarAbbas' => 'بندرعباس',
            'Bushehr' => 'بوشهر', 'Birjand' => 'بیرجند', 'Tabriz' => 'تبریز', 'Tehran' => 'تهران',
            'Khorramabad' => 'خرم‌آباد', 'Rasht' => 'رشت', 'Zahedan' => 'زاهدان', 'Zanjan' => 'زنجان',
            'Sari' => 'ساری', 'Semnan' => 'سمنان', 'Sanandaj' => 'سنندج', 'Shahrekord' => 'شهرکرد',
            'Shiraz' => 'شیراز', 'Qazvin' => 'قزوین', 'Qom' => 'قم', 'Karaj' => 'کرج',
            'Kerman' => 'کرمان', 'Kermanshah' => 'کرمانشاه', 'Gorgan' => 'گرگان', 'Mashhad' => 'مشهد',
            'Hamedan' => 'همدان', 'Yasuj' => 'یاسوج', 'Yazd' => 'یزد'
        ];

        add_action('wp_dashboard_setup', array($this, 'add_dashboard_widget'));
        add_action('wp_ajax_notex_tools_wp_action', array($this, 'handle_ajax_actions'));
        register_activation_hook(__FILE__, array($this, 'activate_plugin'));
        register_uninstall_hook(__FILE__, array('Notex_Tools_Wp_Free', 'uninstall_plugin'));
    }

    public function activate_plugin() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'notex_tools_wp_notes';
        $charset_collate = $wpdb->get_charset_collate();
        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        dbDelta("CREATE TABLE {$table_name} (
            id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
            created_at DATETIME NOT NULL,
            note_content LONGTEXT NOT NULL,
            priority VARCHAR(20) NOT NULL DEFAULT 'medium',
            status VARCHAR(20) NOT NULL DEFAULT 'no_change',
            PRIMARY KEY (id)
        ) {$charset_collate};");
    }

    public static function uninstall_plugin() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'notex_tools_wp_notes';
        $wpdb->query("DROP TABLE IF EXISTS {$table_name}");
    }

    private function gregorian_to_jalali($g_y,$g_m,$g_d) {
        $g_days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
        $j_days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29);
        $gy = $g_y - 1600; $gm = $g_m - 1; $gd = $g_d - 1;
        $g_day_no = 365 * $gy + floor(($gy + 3) / 4) - floor(($gy + 99) / 100) + floor(($gy + 399) / 400);
        for ($i = 0; $i < $gm; ++$i) $g_day_no += $g_days_in_month[$i];
        if ($gm > 1 && (($g_y % 4 == 0 && $g_y % 100 != 0) || ($g_y % 400 == 0))) $g_day_no++;
        $g_day_no += $gd; $j_day_no = $g_day_no - 79;
        $j_np = floor($j_day_no / 12053); $j_day_no %= 12053;
        $jy = 979 + 33 * $j_np + 4 * floor($j_day_no / 1461); $j_day_no %= 1461;
        if ($j_day_no >= 366) { $jy += floor(($j_day_no - 1) / 365); $j_day_no = ($j_day_no - 1) % 365; }
        for ($i = 0; $i < 11 && $j_day_no >= $j_days_in_month[$i]; ++$i) $j_day_no -= $j_days_in_month[$i];
        $jm = $i + 1; $jd = $j_day_no + 1;
        return array($jy, $jm, $jd);
    }

    private function jalali_to_gregorian($j_y, $j_m, $j_d) {
        $j_y = intval($j_y); $j_m = intval($j_m); $j_d = intval($j_d);
        $jy = $j_y - 979; $jm = $j_m - 1; $jd = $j_d - 1;
        $j_day_no = 365 * $jy + intval($jy / 33) * 8 + intval((($jy % 33) + 3) / 4);
        $j_days_in_month = [31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29];
        for ($i = 0; $i < $jm; ++$i) $j_day_no += $j_days_in_month[$i];
        $j_day_no += $jd;
        $g_day_no = $j_day_no + 79;
        $gy = 1600 + 400 * intval($g_day_no / 146097);
        $g_day_no = $g_day_no % 146097;
        $leap = true;
        if ($g_day_no >= 36525) {
            $g_day_no--;
            $gy += 100 * intval($g_day_no / 36524);
            $g_day_no = $g_day_no % 36524;
            if ($g_day_no >= 365) $g_day_no++;
            else $leap = false;
        }
        $gy += 4 * intval($g_day_no / 1461);
        $g_day_no %= 1461;
        if ($g_day_no >= 366) {
            $leap = false;
            $g_day_no--;
            $gy += intval($g_day_no / 365);
            $g_day_no = $g_day_no % 365;
        }
        $g_days_in_month = [31, ($leap ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
        for ($i = 0; $g_day_no >= $g_days_in_month[$i]; $i++) $g_day_no -= $g_days_in_month[$i];
        $gm = $i + 1;
        $gd = $g_day_no + 1;
        return [$gy, $gm, $gd];
    }

    private function format_jalali($jy,$jm,$jd) {
        $map = [1=>'فروردین',۲=>'اردیبهشت',۳=>'خرداد',۴=>'تیر',۵=>'مرداد',۶=>'شهریور',۷=>'مهر',۸=>'آبان',۹=>'آذر',۱۰=>'دی',۱۱=>'بهمن',۱۲=>'اسفند'];
        $week_days = ['یکشنبه', 'دوشنبه', 'سه‌شنبه', 'چهارشنبه', 'پنجشنبه', 'جمعه', 'شنبه'];
        $day_of_week = $week_days[date('w', current_time('timestamp'))];
        return $day_of_week . '، ' . sprintf('%02d %s %04d', $jd, $map[$jm], $jy);
    }

    private function get_time_ir_data() {
        $transient_key = 'notex_time_ir_data';
        $cached_data = get_transient($transient_key);
        if (false !== $cached_data) {
            return $cached_data;
        }
        $response = wp_remote_get('https://time.ir/api/Fa/Time/GetNow', ['timeout' => 10]);
        if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
            return null;
        }
        $data = json_decode(wp_remote_retrieve_body($response), true);
        if (is_array($data) && isset($data['year'])) {
            set_transient($transient_key, $data, 60);
            return $data;
        }
        return null;
    }

    private function excerpt_words($text, $limit = 5) {
        return wp_trim_words(wp_strip_all_tags($text), $limit, '...');
    }

    public function add_dashboard_widget() {
        wp_add_dashboard_widget('notex_tools_wp_dashboard_widget', 'Notex tools wp', array($this, 'render_dashboard_widget'));
    }

    public function render_dashboard_widget() {
        $time_data = $this->get_time_ir_data();
        if ($time_data) {
            $jalali_display = $time_data['fullDate'];
            $gregorian_timestamp = strtotime($time_data['gregorianDate']);
            $gregorian_display_formatted = date('Y - m - d', $gregorian_timestamp);
            $gregorian_day_of_week = $time_data['dayOfWeek'];
            $initial_clock = $time_data['hour'] . ':' . $time_data['minute'] . ':' . $time_data['second'];
        } else {
            $now = current_time('timestamp');
            list($g_y, $g_m, $g_d) = [date('Y', $now), date('n', $now), date('j', $now)];
            list($jy, $jm, $jd) = $this->gregorian_to_jalali($g_y, $g_m, $g_d);
            $jalali_display = $this->format_jalali($jy, $jm, $jd);
            $gregorian_display_formatted = date('Y - m - d', $now);
            $gregorian_day_of_week = date('l', $now);
            $initial_clock = date('H:i:s', $now);
        }
        ?>
        <style>
            #notex_tools_wp_dashboard_widget .hndle,
            #notex_tools_wp_dashboard_widget .handle-order-higher,
            #notex_tools_wp_dashboard_widget .handle-order-lower { display: none !important; }
            #notex_tools_wp_dashboard_widget .inside { margin: 0; padding: 0; }
            .notex-wrapper { display:flex; direction:rtl; background:#f7f3fb; border:1px solid #e3dfe8; border-radius:8px; overflow:hidden; }
            .notex-col { padding:20px; box-sizing:border-box; display:flex; flex-direction:column; }
            .notex-col-main { width: 65%; background:#fff; }
            .notex-col-sidebar { width: 35%; border-left:1px solid #e3dfe8; justify-content: space-between; gap: 20px; text-align: center; }
            .notex-tabs { display:flex; flex-wrap:nowrap; overflow-x: auto; gap:8px; border-bottom:1px solid #e9e6ee; padding-bottom:10px; margin-bottom:12px; }
            .notex-tab-link { padding:8px 12px; background:#f4eef8; border:1px solid #e9e6ee; border-radius:8px; cursor:pointer; white-space: nowrap; }
            .notex-tab-link.active { background:#8a2be2; color:#fff; border-color:#8a2be2; }
            .time-box .clock { font-size:3.2rem; font-weight:800; line-height:1.1; margin-bottom: 10px; }
            .time-box .date { font-size:1rem; color:#333; font-weight:700; line-height: 1.8; }
            .weather-box { background:#fff; border-radius:8px; padding:15px; border:1px solid #e9e6ee; }
            #note-content { width:100%; min-height:160px; padding:12px; border-radius:8px; border:1px solid #e9e6ee; resize:vertical; margin-bottom: 10px;}
            .note-form-dropdowns { display: flex; gap: 10px; margin-bottom: 10px; }
            .note-form-dropdowns select { flex-grow: 1; padding: 10px; border-radius: 8px; border: 1px solid #e9e6ee; background-color: #fff; }
            #save-note-btn { width: 100%; background:#1e88e5; color:#fff; padding:12px; border-radius:8px; border:none; cursor:pointer; font-weight:700; }
            .notes-list .note-list-item { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 6px; border-bottom:1px solid #f0eef3; }
            .note-left { display:flex; align-items:center; gap:10px; min-width:0; flex-grow: 1; }
            .note-text-content { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
            .note-meta { display:flex; gap:8px; align-items:center; direction:ltr; justify-content:flex-end; font-size:0.9em; color:#555; }
            .note-delete { background:#e74c3c; color:#fff; padding:6px 10px; border-radius:6px; text-decoration:none; }
            .note-edit { background:#8a2be2; color:#fff; padding:6px 10px; border-radius:6px; text-decoration:none; }
            .priority-dot { width:12px; height:12px; border-radius:50%; flex-shrink:0; display: inline-block; margin-left: 5px; }
            .priority-dot.high{ background:#e74c3c; } .priority-dot.medium{ background:#f39c12; } .priority-dot.low{ background:#f1c40f; }
            .status-dot { width:12px; height:12px; border-radius:50%; flex-shrink:0; display: inline-block; margin-left: 5px; }
            .status-dot.completed { background: #28a745; }
            #prayer-times-output { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 15px; padding: 20px; text-align: center; }
            #prayer-times-output div { background-color: #f9f9f9; border: 1px solid #eee; border-radius: 8px; padding: 15px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
            #prayer-times-output strong { display: block; font-size: 1.2em; color: #8a2be2; margin-bottom: 8px; }
            #prayer-times-output span { font-size: 1.5em; font-weight: bold; color: #333; }
            .simple-calendar { display:grid; grid-template-columns: repeat(7, 1fr); gap:10px; padding:8px; }
            .cal-day { height:50px; border-radius:8px; display:flex; flex-direction:column; align-items:center; justify-content:center; font-size:1rem; line-height:1.2; background: #fff; border: 1px solid #ddd; }
            .cal-day.cal-today { font-weight: bold; border: 2px solid #8a2be2; }
            .cal-day .gregorian-date { font-size: 0.75em; color: #A52A2A; font-weight: normal; }
            .parsidate-notice { font-size: 1em !important; color: #444 !important; }
            .notex-pro-banner { background-color: #ffe5e5; color: #d8000c; padding: 10px; text-align: center; margin-bottom: 15px; border-bottom: 1px solid #e3dfe8; font-weight: bold; }
            .notex-pro-banner a { color: #8a2be2; text-decoration: none; }
        </style>

        <div class="notex-wrapper" id="notex-widget-root">
            <div class="notex-col notex-col-main">
                <div class="notex-pro-banner">محدودیت حداکثر ساخت ۳ یادداشت: <a href="https://mrbarati.com/management-wp" target="_blank">نسخه پرو</a></div>
                <div class="notex-tabs">
                    <button class="notex-tab-link active" data-tab="new-note">نوشتن/ویرایش یادداشت</button>
                    <button class="notex-tab-link" data-tab="all-notes" data-filter="all">نمایش همه</button>
                    <button class="notex-tab-link" data-tab="high-priority-notes" data-filter="high">اولویت بالا</button>
                    <button class="notex-tab-link" data-tab="medium-priority-notes" data-filter="medium">اولویت متوسط</button>
                    <button class="notex-tab-link" data-tab="low-priority-notes" data-filter="low">اولویت کم</button>
                    <button class="notex-tab-link" data-tab="prayer-times">اوقات شرعی</button>
                    <button class="notex-tab-link" data-tab="calendar">تقویم</button>
                </div>
                <div id="new-note" class="notex-tab-content" style="display:block;">
                    <?php wp_nonce_field('notex_tools_wp_nonce_form', 'notex_form_nonce'); ?>
                    <input type="hidden" id="note-id-to-edit" value="">
                    <textarea id="note-content" placeholder="...متن خود را اینجا بنویسید"></textarea>
                    <div class="note-form-dropdowns">
                        <select id="note-priority">
                            <option value="high">اولویت بالا</option>
                            <option value="medium" selected>اولویت متوسط</option>
                            <option value="low">اولویت کم</option>
                        </select>
                         <select id="note-status">
                            <option value="in_progress">در حال انجام</option>
                            <option value="no_change" selected>بدون تغییر</option>
                            <option value="completed">تمام شده</option>
                        </select>
                    </div>
                    <button id="save-note-btn">ذخیره یادداشت</button>
                </div>
                <div id="all-notes" class="notex-tab-content notes-list" style="display:none;"></div>
                <div id="high-priority-notes" class="notex-tab-content notes-list" style="display:none;"></div>
                <div id="medium-priority-notes" class="notex-tab-content notes-list" style="display:none;"></div>
                <div id="low-priority-notes" class="notex-tab-content notes-list" style="display:none;"></div>
                <div id="prayer-times" class="notex-tab-content" style="display:none;"><div id="prayer-times-output"></div></div>
                <div id="calendar" class="notex-tab-content" style="display:none;"><div id="simple-calendar" class="simple-calendar"></div></div>
            </div>

            <div class="notex-col notex-col-sidebar">
                <div class="time-box">
                    <div class="clock" id="notex-clock" data-initial-time="<?php echo esc_attr($initial_clock); ?>">۰۰:۰۰</div>
                    <div class="date">
                        <div><?php echo esc_html($jalali_display); ?></div>
                        <div><?php echo esc_html($gregorian_display_formatted); ?></div>
                        <div><?php echo esc_html($gregorian_day_of_week); ?></div>
                    </div>
                </div>
                <div class="weather-box" id="notex-weather-info">برای نمایش آب و هوا، شهر را انتخاب کنید.</div>
                <div class="sidebar-bottom">
                    <div style="font-weight:700; margin-bottom:8px;">انتخاب شهر (برای آب و هوا)</div>
                    <select id="sidebar-city-selector" style="width:100%; padding:12px; border-radius:8px; border:1px solid #e9e6ee;">
                        <option value="">-- انتخاب کنید --</option>
                        <?php foreach ($this->cities_data as $key => $fa): ?>
                            <option value="<?php echo esc_attr($key); ?>"><?php echo esc_html($fa); ?></option>
                        <?php endforeach; ?>
                    </select>
                    <div class="parsidate-notice" style="margin-top: 10px;">
                        افزونه برای نمایش فارسی به پلاگین <a href="https://wordpress.org/plugins/wp-parsidate/" target="_blank">پارسی دیت</a> نیاز دارد.
                    </div>
                </div>
            </div>
        </div>

        <script>
        (function($){
            $(function() {
                const widget = $('#notex_tools_wp_dashboard_widget');
                if (widget.length) {
                    $('#dashboard-widgets.metabox-holder').prepend(widget);
                    widget.css('margin-bottom', '20px');
                }
            });

            const nonce = '<?php echo wp_create_nonce("notex_tools_wp_nonce"); ?>';
            function doAjax(sub_action, data = {}, cb) {
                $.post(ajaxurl, $.extend({ action: 'notex_tools_wp_action', sub_action: sub_action, _ajax_nonce: nonce }, data), cb, 'json');
            }

            function initializeClock() {
                const clockElement = $('#notex-clock');
                const initialTime = clockElement.data('initial-time');
                let serverTime;
                if (initialTime && initialTime.split(':').length === 3) {
                    const parts = initialTime.split(':');
                    serverTime = new Date();
                    serverTime.setHours(parseInt(parts[0], 10), parseInt(parts[1], 10), parseInt(parts[2], 10));
                } else {
                    serverTime = new Date();
                }
                function updateClock() {
                    serverTime.setSeconds(serverTime.getSeconds() + 1);
                    const h = String(serverTime.getHours()).padStart(2, '0');
                    const m = String(serverTime.getMinutes()).padStart(2, '0');
                    clockElement.text(h + ':' + m);
                }
                updateClock();
                setInterval(updateClock, 1000);
            }
            initializeClock();
            
            $('.notex-tab-link').on('click', function(){
                const tab = $(this).data('tab');
                $('.notex-tab-link').removeClass('active');
                $(this).addClass('active');
                $('.notex-tab-content').hide();
                $('#' + tab).show();
                if ($(this).data('filter')) loadNotes($(this).data('filter'), 1, '#' + tab);
                if (tab === 'calendar') renderCalendar();
            });

            function escapeHtml(text) {
                if (typeof text !== 'string') return '';
                return text.replace(/[&<>"'`=\/]/g, s => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;','`':'&#x60;','=':'&#x3D;','/':'&#x2F;'})[s]);
            }
            
            function buildNoteItemHtml(note, number) {
                let statusDot = note.status === 'completed' ? `<span class="status-dot completed" title="تمام شده"></span>` : '';
                return `<div class="note-list-item">
                    <div class="note-left">
                        <span>${number}.</span>
                        ${statusDot}
                        <span class="priority-dot ${escapeHtml(note.priority)}"></span>
                        <span class="note-text-content" title="${escapeHtml(note.note_content)}">${escapeHtml(note.excerpt)}</span>
                    </div>
                    <div class="note-meta">
                        <a href="#" class="note-edit" data-id="${note.id}" data-content="${escapeHtml(note.note_content)}" data-priority="${note.priority}" data-status="${note.status}">ویرایش</a>
                        <a href="#" class="note-delete" data-id="${note.id}">حذف</a>
                        <span>${note.created_at_display || ''}</span>
                    </div>
                </div>`;
            }

            function loadNotes(filter, page = 1, containerSelector = '#all-notes') {
                $(containerSelector).html('در حال بارگذاری...');
                doAjax('get_notes', { filter, page }, function(res){
                    if (!res || !res.success) { $(containerSelector).html('خطا در دریافت یادداشت‌ها.'); return; }
                    let html = (res.data.notes || []).map((note, idx) => buildNoteItemHtml(note, res.data.offset + idx + 1)).join('');
                    $(containerSelector).html(html || 'یادداشتی یافت نشد.');
                });
            }

            $('body').on('click', '.note-delete', function(e){
                e.preventDefault();
                if (!confirm('آیا از حذف این یادداشت مطمئن هستید؟')) return;
                const id = $(this).data('id');
                doAjax('delete_note', { note_id: id }, function(res){
                    if (res && res.success) $('.notex-tab-link.active').trigger('click');
                    else alert(res.data.message || 'خطا در حذف.');
                });
            });

            $('body').on('click', '.note-edit', function(e){
                e.preventDefault();
                const btn = $(this);
                $('.notex-tab-link[data-tab="new-note"]').trigger('click');
                $('#note-id-to-edit').val(btn.data('id'));
                $('#note-content').val(btn.data('content'));
                $('#note-priority').val(btn.data('priority'));
                $('#note-status').val(btn.data('status'));
                $('#save-note-btn').text('بروزرسانی یادداشت');
            });

            $('#save-note-btn').on('click', function(){
                const noteData = {
                    note_id: $('#note-id-to-edit').val(),
                    content: $('#note-content').val(),
                    priority: $('#note-priority').val(),
                    status: $('#note-status').val(),
                    nonce: $('#notex_form_nonce').val()
                };
                doAjax('save_note', noteData, function(res){
                    if (res && res.success) {
                        $('#note-content').val('');
                        $('#note-id-to-edit').val('');
                        $('#save-note-btn').text('ذخیره یادداشت');
                        $('.notex-tab-link[data-filter="all"]').trigger('click');
                    } else {
                        if (res.data && res.data.message === 'limit_reached') {
                             alert('شما به حداکثر تعداد یادداشت (۳ عدد) در نسخه رایگان رسیده‌اید. برای برداشتن محدودیت، نسخه پرو را تهیه کنید: https://mrbarati.com/management-wp');
                        } else {
                            alert(res.data.message || 'خطا در ذخیره سازی.');
                        }
                    }
                });
            });

            $('#sidebar-city-selector').on('change', function(){
                const city = $(this).val();
                if (!city) return;
                $('#notex-weather-info').html('در حال دریافت...');
                $('#prayer-times-output').html('در حال دریافت...');
                doAjax('get_city_data', { city }, function(res){
                    if (res && res.success) {
                        const w = res.data.weather;
                        const p = res.data.prayer;
                        let weather_html = `<strong>${escapeHtml(w.temp)}°C</strong> — دمای الان`;
                        let prayer_html = Object.entries(p).map(([key, val]) => `<div><strong>${escapeHtml(key)}</strong><span>${escapeHtml(val)}</span></div>`).join('');
                        $('#notex-weather-info').html(weather_html);
                        $('#prayer-times-output').html(prayer_html || 'اوقات شرعی دریافت نشد.');
                    } else {
                         $('#notex-weather-info').html('خطا در دریافت اطلاعات آب و هوا.');
                         $('#prayer-times-output').html('خطا در دریافت اوقات شرعی.');
                    }
                });
            });

            function renderCalendar() {
                $('#simple-calendar').html('در حال بارگذاری تقویم...');
                doAjax('get_calendar_info', {}, function(res){
                    if (!res || !res.success) {
                        $('#simple-calendar').html('خطا در دریافت تقویم.');
                        return;
                    }
                    let html = '';
                    const weekDays = ['ش', 'ی', 'د', 'س', 'چ', 'پ', 'ج'];
                    weekDays.forEach(day => {
                        html += `<div class="cal-day" style="background:#f0eef3; font-weight:bold;">${day}</div>`;
                    });
                    for(let i=0; i < res.data.first_day_offset; i++) html += '<div></div>';
                    (res.data.days || []).forEach(day => {
                        html += `<div class="cal-day ${day.is_today ? 'cal-today' : ''}">
                                    <div>${day.jalali_day}</div>
                                    <div class="gregorian-date">${day.gregorian_str}</div>
                                 </div>`;
                    });
                    $('#simple-calendar').html(html);
                });
            }
            loadNotes('all', 1, '#all-notes');
        })(jQuery);
        </script>
        <?php
    }

    public function handle_ajax_actions() {
        check_ajax_referer('notex_tools_wp_nonce');
        if (!current_user_can('edit_dashboard')) {
            wp_send_json_error(['message' => 'عدم دسترسی.'], ۴۰۳);
        }
        $action = isset($_POST['sub_action']) ? sanitize_key($_POST['sub_action']) : '';
        switch ($action) {
            case 'save_note': $this->ajax_save_note(); break;
            case 'get_notes': $this->ajax_get_notes(); break;
            case 'delete_note': $this->ajax_delete_note(); break;
            case 'get_city_data': $this->ajax_get_city_data(); break;
            case 'get_calendar_info': $this->ajax_get_calendar_info(); break;
            default: wp_send_json_error(['message' => 'عملیات نامعتبر.']);
        }
    }

    private function ajax_save_note() {
        global $wpdb;
        $table_name = $wpdb->prefix . 'notex_tools_wp_notes';
        $note_id = isset($_POST['note_id']) ? intval($_POST['note_id']) : 0;

        if ($note_id === 0) {
            $note_count = $wpdb->get_var("SELECT COUNT(*) FROM {$table_name}");
            if ($note_count >= 3) {
                wp_send_json_error(['message' => 'limit_reached']);
                return;
            }
        }
        
        $content = isset($_POST['content']) ? wp_kses_post($_POST['content']) : '';
        $priority = isset($_POST['priority']) ? sanitize_key($_POST['priority']) : 'medium';
        $status = isset($_POST['status']) ? sanitize_key($_POST['status']) : 'no_change';
        if (empty(trim($content))) wp_send_json_error(['message' => 'متن یادداشت خالی است.']);
        if (!in_array($priority, ['high', 'medium', 'low'])) wp_send_json_error(['message' => 'اولویت نامعتبر است.']);
        if (!in_array($status, ['in_progress', 'no_change', 'completed'])) wp_send_json_error(['message' => 'وضعیت نامعتبر است.']);
        $data = ['note_content' => $content, 'priority' => $priority, 'status' => $status];
        
        if ($note_id > 0) {
            $result = $wpdb->update($table_name, $data, ['id' => $note_id]);
        } else {
            $data['created_at'] = current_time('mysql', 1);
            $result = $wpdb->insert($table_name, $data);
        }

        if ($result !== false) wp_send_json_success();
        else wp_send_json_error(['message' => 'خطا در پایگاه داده.']);
    }
    
    private function ajax_get_notes() {
        global $wpdb;
        $filter = isset($_POST['filter']) && in_array($_POST['filter'], ['all', 'high', 'medium', 'low']) ? sanitize_key($_POST['filter']) : 'all';
        $where = ($filter !== 'all') ? $wpdb->prepare("WHERE priority = %s", $filter) : '';
        $table_name = $wpdb->prefix . 'notex_tools_wp_notes';
        $notes = $wpdb->get_results("SELECT * FROM {$table_name} {$where} ORDER BY created_at DESC LIMIT 20");
        $status_map = ['in_progress' => 'در حال انجام', 'no_change' => 'بدون تغییر', 'completed' => 'تمام شده'];
        $out = [];
        foreach ($notes as $n) {
            $timestamp = strtotime($n->created_at);
            $status_text = isset($status_map[$n->status]) ? $status_map[$n->status] : esc_html($n->status);
            $date_text = function_exists('parsidate') ? parsidate('Y/m/d', $timestamp) : date('Y-m-d', $timestamp);
            $out[] = [
                'id' => intval($n->id),
                'note_content' => wp_kses_post($n->note_content),
                'priority' => esc_html($n->priority),
                'status' => esc_html($n->status),
                'excerpt' => $this->excerpt_words($n->note_content, 5),
                'created_at_display' => $status_text . ' - ' . $date_text,
            ];
        }
        wp_send_json_success(['notes' => $out, 'offset' => 0]);
    }

    private function ajax_delete_note() {
        global $wpdb;
        $note_id = isset($_POST['note_id']) ? intval($_POST['note_id']) : 0;
        if ($note_id > 0) {
            $table_name = $wpdb->prefix . 'notex_tools_wp_notes';
            if ($wpdb->delete($table_name, ['id' => $note_id], ['%d'])) wp_send_json_success();
            else wp_send_json_error(['message' => 'یادداشت یافت نشد یا خطا در حذف.']);
        } else {
            wp_send_json_error(['message' => 'شناسه نامعتبر.']);
        }
    }

    private function ajax_get_city_data() {
        $city = isset($_POST['city']) ? sanitize_text_field($_POST['city']) : '';
        if (empty($city)) wp_send_json_error(['message' => 'نام شهر مشخص نشده است.']);
        $weather_res = wp_remote_get("https://wttr.in/{$city}?format=j1", ['timeout' => 10]);
        $weather_data = ['temp' => 'N/A'];
        if (!is_wp_error($weather_res) && wp_remote_retrieve_response_code($weather_res) === 200) {
            $wt = json_decode(wp_remote_retrieve_body($weather_res), true);
            if (!empty($wt['current_condition'][0])) $weather_data['temp'] = esc_html($wt['current_condition'][0]['temp_C']);
        }
        $prayer_res = wp_remote_get("https://api.aladhan.com/v1/timingsByCity?city={$city}&country=Iran&method=8", ['timeout' => 10]);
        $prayer_times = [];
        if (!is_wp_error($prayer_res) && wp_remote_retrieve_response_code($prayer_res) === 200) {
            $pr_api = json_decode(wp_remote_retrieve_body($prayer_res), true);
            if (!empty($pr_api['data']['timings'])) {
                $map = ['Fajr'=>'اذان صبح','Sunrise'=>'طلوع آفتاب','Dhuhr'=>'اذان ظهر','Maghrib'=>'اذان مغرب','Isha'=>'عشا'];
                foreach ($map as $en => $fa) if (isset($pr_api['data']['timings'][$en])) $prayer_times[esc_html($fa)] = esc_html($pr_api['data']['timings'][$en]);
            }
        }
        wp_send_json_success(['weather' => $weather_data, 'prayer' => $prayer_times]);
    }

    private function generate_calendar_fallback() {
        $now = current_time('timestamp');
        list($g_y, $g_m, $g_d) = [date('Y', $now), date('n', $now), date('j', $now)];
        list($jy, $jm, $jd) = $this->gregorian_to_jalali($g_y, $g_m, $g_d);
        $is_leap = in_array(($jy % 33), [1, 5, 9, 13, 17, 22, 26, 30]);
        $days_in_month = ($jm <= 6) ? 31 : (($jm <= 11) ? 30 : ($is_leap ? 30 : 29));
        $calendar_days = [];
        for ($day = 1; $day <= $days_in_month; $day++) {
            list($cal_g_y, $cal_g_m, $cal_g_d) = $this->jalali_to_gregorian($jy, $jm, $day);
            $calendar_days[] = [
                'jalali_day'    => intval($day),
                'gregorian_str' => sprintf('%02d/%02d', $cal_g_d, $cal_g_m),
                'is_today'      => ($day == $jd),
            ];
        }
        list($first_g_y, $first_g_m, $first_g_d) = $this->jalali_to_gregorian($jy, $jm, 1);
        $php_w = date('w', strtotime("$first_g_y-$first_g_m-$first_g_d"));
        $offset = ($php_w + 1) % 7;
        return ['days' => $calendar_days, 'first_day_offset' => $offset];
    }
    
    private function ajax_get_calendar_info() {
        $time_data = $this->get_time_ir_data();
        if ($time_data) {
            $jy = $time_data['year'];
            $jm = $time_data['month'];
            $jd = $time_data['dayOfMonth'];
            $api_url = "https://time.ir/api/Fa/Month/GetCalender?Year={$jy}&Month={$jm}";
            $response = wp_remote_get($api_url, ['timeout' => 10]);
            if (!is_wp_error($response) && wp_remote_retrieve_response_code($response) === 200) {
                $cal_data = json_decode(wp_remote_retrieve_body($response), true);
                if (isset($cal_data['days']) && isset($cal_data['dayOfWeek'])) {
                    $calendar_days = [];
                    foreach ($cal_data['days'] as $day_data) {
                        $calendar_days[] = [
                            'jalali_day'    => intval($day_data['day']),
                            'gregorian_str' => esc_html($day_data['gregorian']),
                            'is_today'      => (intval($day_data['day']) == $jd),
                        ];
                    }
                    $offset = intval($cal_data['dayOfWeek']);
                    wp_send_json_success(['days' => $calendar_days, 'first_day_offset' => $offset]);
                    return;
                }
            }
        }
        $fallback_data = $this->generate_calendar_fallback();
        wp_send_json_success($fallback_data);
    }
}

new Notex_Tools_Wp_Free();