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https://github.com/myronblair/jarvis
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Adopt live production state as git baseline
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<?php
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/**
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* JARVIS Knowledge Base + Intent Engine
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* Matches user input against intent patterns, substitutes live facts from kb_facts.
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* Returns a response if matched, or null to escalate to Ollama/Claude.
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*/
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class KBEngine {
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/**
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* Try to match the input against known intents.
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* Returns ['reply' => string, 'intent' => string] or null if no match.
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*/
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public static function match(string $input): ?array {
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$intents = JarvisDB::query(
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'SELECT * FROM kb_intents WHERE active=1 ORDER BY priority DESC, id ASC'
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);
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if (!$intents) return null;
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foreach ($intents as $intent) {
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$pat = '~' . $intent['pattern'] . '~';
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if (@preg_match($pat, $input)) {
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$reply = self::fillTemplate(
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$intent['response_template'],
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$intent['fact_category']
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);
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return [
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'reply' => $reply,
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'intent' => $intent['intent_name'],
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'action' => $intent['action_type'],
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];
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}
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}
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return null;
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}
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/**
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* Replace {placeholder} tokens in a template with values from kb_facts,
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* plus built-in dynamic tokens like {current_time}.
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*/
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private static function fillTemplate(string $template, ?string $category): string {
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// Built-in tokens
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$builtins = [
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'current_time' => date('g:i A'),
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'current_date' => date('l, F j Y'),
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];
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// Load user address preference
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$prefRows = JarvisDB::query(
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"SELECT pref_key, pref_value FROM kb_preferences WHERE pref_key IN ('user_name','user_title')"
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);
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$prefs = [];
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foreach ($prefRows ?? [] as $p) { $prefs[$p['pref_key']] = $p['pref_value']; }
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$builtins['user_title'] = $prefs['user_title'] ?? $prefs['user_name'] ?? 'Sir';
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$builtins['user_name'] = $prefs['user_name'] ?? 'Myron';
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// Computed builtins
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$pendingRow = JarvisDB::single("SELECT COUNT(*) cnt FROM tasks WHERE status NOT IN ('done','cancelled')");
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$builtins['pending_count'] = (string)($pendingRow['cnt'] ?? 0);
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$overdueRow = JarvisDB::single("SELECT COUNT(*) cnt FROM tasks WHERE due_date < CURDATE() AND status NOT IN ('done','cancelled')");
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$builtins['overdue_count'] = (string)($overdueRow['cnt'] ?? 0);
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// Fetch all facts for this category
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$facts = [];
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if ($category) {
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$rows = JarvisDB::query(
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'SELECT fact_key, fact_value FROM kb_facts
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WHERE category = ? AND (expires_at IS NULL OR expires_at > NOW())',
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[$category]
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);
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foreach ($rows ?? [] as $r) {
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$facts[$r['fact_key']] = $r['fact_value'];
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}
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}
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// Pull network facts if template uses them
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if (strpos($template, '{online_count}') !== false || strpos($template, '{total_count}') !== false) {
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$netRows = JarvisDB::query("SELECT fact_key, fact_value FROM kb_facts WHERE category='network' AND (expires_at IS NULL OR expires_at > NOW())");
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foreach ($netRows ?? [] as $r) { $facts[$r['fact_key']] = $r['fact_value']; }
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}
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// Pull system facts if template uses them
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if (preg_match('/\{(cpu_usage|mem_|disk_|uptime|load_)\w*\}/', $template)) {
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$sysRows = JarvisDB::query("SELECT fact_key, fact_value FROM kb_facts WHERE category='system' AND (expires_at IS NULL OR expires_at > NOW())");
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foreach ($sysRows ?? [] as $r) { $facts[$r['fact_key']] = $r['fact_value']; }
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}
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$allTokens = array_merge($builtins, $facts);
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// Replace placeholders
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return preg_replace_callback('/\{([a-z0-9_]+)\}/', function ($m) use ($allTokens) {
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return $allTokens[$m[1]] ?? '';
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}, $template);
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}
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/**
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* Store a fact in kb_facts (upsert).
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*/
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public static function storeFact(
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string $category,
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string $key,
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string $value,
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string $host = 'local',
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?int $ttlSeconds = null
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): void {
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$expires = $ttlSeconds ? gmdate('Y-m-d H:i:s', time() + $ttlSeconds) : null;
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JarvisDB::execute(
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'INSERT INTO kb_facts (category, fact_key, fact_value, host, expires_at)
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VALUES (?,?,?,?,?)
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ON DUPLICATE KEY UPDATE fact_value=VALUES(fact_value), expires_at=VALUES(expires_at), updated_at=NOW()',
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[$category, $key, $value, $host, $expires]
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);
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}
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/**
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* Learn from conversation — store interesting facts the user mentions.
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*/
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public static function learnFromConversation(string $input, string $reply): void {
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// Preference learning: user states a preference
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if (preg_match('/(?i)i (prefer|like|want|always)\s+(.+?)(?:\.|$)/', $input, $m)) {
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$pref = trim($m[2]);
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if (strlen($pref) < 120) {
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JarvisDB::execute(
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'INSERT INTO kb_preferences (pref_key, pref_value)
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VALUES (?,?)
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ON DUPLICATE KEY UPDATE pref_value=VALUES(pref_value)',
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['learned_' . md5($pref), $pref]
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);
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}
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}
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}
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/**
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* Return a summary of what the KB knows (for system prompt injection).
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*/
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public static function getContextSummary(): string {
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// Exclude entity_map — too large for Ollama 1B tokenizer
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$facts = JarvisDB::query(
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"SELECT category, fact_key, fact_value FROM kb_facts
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WHERE fact_key != 'entity_map'
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ORDER BY category, updated_at DESC"
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);
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if (!$facts) return '';
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$byCategory = [];
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foreach ($facts as $f) {
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$byCategory[$f['category']][] = "{$f['fact_key']}={$f['fact_value']}";
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}
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$lines = [];
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foreach ($byCategory as $cat => $items) {
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$lines[] = strtoupper($cat) . ': ' . implode(', ', array_slice($items, 0, 8));
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}
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return implode("\n", $lines);
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}
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}
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