<?php
// Citami Connector — module. Loaded by citami-connector.php in a fixed
// order; never load this file on its own.
if (!defined('ABSPATH')) {
    exit;
}

/* ────────────────────────────────────────────────────────────────── */
/*  2.42 — ACTIVITY: what the plugin did, visible                       */
/*  Most of the plugin's value is silent (schema, sitemap, IndexNow,   */
/*  alt text, redirects served to AI crawlers, links written). This   */
/*  log makes it visible on the Overview: one line per action, the    */
/*  repetitive ones aggregated per day.                               */
/* ────────────────────────────────────────────────────────────────── */

define('CITAMI_ACTIVITY_OPT', 'citami_activity');
define('CITAMI_ACTIVITY_MAX', 200);

/** Kinds that aggregate into one line per day (count grows). */
function citami_activity_aggregate_kinds() {
    return array('indexnow', 'alt', 'redirect_served');
}

function citami_activity_all() {
    $log = get_option(CITAMI_ACTIVITY_OPT, array());
    return is_array($log) ? array_values(array_filter($log, 'is_array')) : array();
}

/**
 * Records an action. $count is added to today's line for aggregate kinds.
 * Entry: kind, message, count, ts, day (Y-m-d, site timezone), meta.
 */
function citami_activity_log($kind, $message, $count = 1, array $meta = array()) {
    $kind = sanitize_key((string) $kind);
    $log = citami_activity_all();
    $day = function_exists('wp_date') ? wp_date('Y-m-d') : gmdate('Y-m-d');
    if (in_array($kind, citami_activity_aggregate_kinds(), true)) {
        foreach ($log as $i => $e) {
            if ($e['kind'] === $kind && $e['day'] === $day) {
                $log[$i]['count'] = (int) $e['count'] + (int) $count;
                $log[$i]['ts'] = time();
                $log[$i]['message'] = (string) $message;
                update_option(CITAMI_ACTIVITY_OPT, $log, false);
                return $log[$i];
            }
        }
    }
    $entry = array('kind' => $kind, 'message' => mb_substr((string) $message, 0, 200), 'count' => max(1, (int) $count), 'ts' => time(), 'day' => $day, 'meta' => $meta);
    array_unshift($log, $entry);
    update_option(CITAMI_ACTIVITY_OPT, array_slice($log, 0, CITAMI_ACTIVITY_MAX), false);
    return $entry;
}

/** Newest first, sorted by last update. */
function citami_activity_recent($limit = 10) {
    $log = citami_activity_all();
    usort($log, function ($a, $b) { return (int) $b['ts'] <=> (int) $a['ts']; });
    return array_slice($log, 0, $limit);
}

/** Human line for an entry: "12 URL inviati a IndexNow". */
function citami_activity_label(array $e) {
    $n = (int) $e['count'];
    switch ($e['kind']) {
        case 'indexnow':
            return sprintf(citami_t('%d URL inviati a IndexNow', '%d URLs sent to IndexNow'), $n);
        case 'alt':
            return sprintf(citami_t('%d alt generati per le immagini', '%d image alt texts generated'), $n);
        case 'redirect_served':
            return sprintf(citami_t('%d richieste di URL inventati reindirizzate', '%d requests for invented URLs redirected'), $n);
        default:
            return (string) $e['message'];
    }
}

/** Today's counters for the Overview: what happened without anyone clicking. */
function citami_activity_today() {
    $day = function_exists('wp_date') ? wp_date('Y-m-d') : gmdate('Y-m-d');
    $out = array('actions' => 0, 'indexnow' => 0, 'alt' => 0, 'redirect_served' => 0, 'links' => 0, 'redirects' => 0, 'fixes' => 0);
    foreach (citami_activity_all() as $e) {
        if ($e['day'] !== $day) {
            continue;
        }
        $out['actions'] += (int) $e['count'];
        if (isset($out[$e['kind']])) {
            $out[$e['kind']] += (int) $e['count'];
        } elseif ($e['kind'] === 'link') {
            $out['links'] += (int) $e['count'];
        } elseif ($e['kind'] === 'redirect') {
            $out['redirects'] += (int) $e['count'];
        } elseif ($e['kind'] === 'fix') {
            $out['fixes'] += (int) $e['count'];
        }
    }
    return $out;
}

// --- sources: the silent work reports here ---
add_action('citami_indexnow_submitted', function ($n) { citami_activity_log('indexnow', 'IndexNow', (int) $n); });
add_action('citami_alt_generated', function ($n) { citami_activity_log('alt', 'alt', (int) $n); });
add_action('citami_ai_404_redirected', function () { citami_activity_log('redirect_served', 'redirect', 1); });
add_action('citami_fix_applied', function ($fix_type, $title) {
    citami_activity_log('fix', sprintf(citami_t('Fix applicato dalla piattaforma: %s', 'Fix applied from the platform: %s'), (string) $title), 1, array('fix_type' => (string) $fix_type));
}, 10, 2);