<?php
/**
 * S88 Brain Module Activator
 * Run AFTER nginx+PHP installed on S88 and Ollama is LOCAL
 * 
 * Activates class-based cognitive modules that need local Ollama:
 * - MetacognitionEngine (confidence calibration, bias detection)
 * - ContextManager (token budget optimization)
 * - OutputFormatter (auto-format responses)
 * - ErrorTaxonomy (smart error recovery)
 * - ChainOfThoughtV2 (structured reasoning)
 * - ConversationMemory (long-term entity tracking)
 * - CodeAnalyzer (code quality assessment)
 * - SmartReporter (auto report generation)
 */

// ═══ ACTIVATION CHECK ═══
$ollamaLocal = @file_get_contents("http://127.0.0.1:11434/");
if (!$ollamaLocal || strpos($ollamaLocal, "running") === false) {
    die("ERROR: Ollama not running locally. Abort.\n");
}
echo "✅ Ollama LOCAL confirmed\n";

// ═══ UPDATE AUTOLOAD ═══
$autoload = <<<'AUTOLOAD'
<?php
/**
 * WEVIA Brain Autoload — S88 Consolidated
 * All cognitive modules loaded from /opt/wevia-brain/
 */
spl_autoload_register(function($class) {
    $map = [
        // Core modules
        'MetacognitionEngine' => '/opt/wevia-brain/modules/core/metacognition.php',
        'ContextManager' => '/opt/wevia-brain/modules/core/context-manager.php',
        'OutputFormatter' => '/opt/wevia-brain/modules/core/output-formatter.php',
        'ErrorTaxonomy' => '/opt/wevia-brain/modules/core/error-taxonomy.php',
        'ConversationRouter' => '/opt/wevia-brain/modules/core/conversation-router.php',
        // Advanced modules
        'CodeAnalyzer' => '/opt/wevia-brain/modules/advanced/code-analyzer.php',
        'ConversationMemory' => '/opt/wevia-brain/modules/advanced/conversation-memory.php',
        'MultiAgent' => '/opt/wevia-brain/modules/advanced/multi-agent.php',
        'SmartReporter' => '/opt/wevia-brain/modules/advanced/smart-reporter.php',
        'WebIntelligence' => '/opt/wevia-brain/modules/advanced/web-intelligence.php',
        // Agentic modules
        'Planner' => '/opt/wevia-brain/modules/agentic/planner.php',
        'SelfHealing' => '/opt/wevia-brain/modules/agentic/self-healing.php',
        // Pipeline modules
        'EmbeddingPipeline' => '/opt/wevia-brain/modules/pipeline/embedding-pipeline.php',
        'StreamingHandler' => '/opt/wevia-brain/modules/pipeline/streaming-handler.php',
        'TokenTracker' => '/opt/wevia-brain/modules/pipeline/token-tracker.php',
        // V2 modules
        'ChainOfThoughtV2' => '/opt/wevia-brain/modules/v2/chain-of-thought-v2.php',
        'ToolUseV2' => '/opt/wevia-brain/modules/v2/tool-use-v2.php',
    ];
    if (isset($map[$class]) && file_exists($map[$class])) {
        require_once $map[$class];
    }
});
AUTOLOAD;

file_put_contents("/opt/wevia-brain/autoload.php", $autoload);
echo "✅ Autoload updated (17 modules mapped)\n";

// ═══ CREATE BRAIN INTEGRATION HOOK ═══
$hook = <<<'HOOK'
<?php
/**
 * S88 Brain Hook — Wire class modules into weval-chatbot-api.php
 * Include this AFTER cognitive-brain.php in the main API
 * 
 * Usage in weval-chatbot-api.php:
 *   require_once "/opt/wevia-brain/s88-brain-hook.php";
 */

// Initialize singletons (lazy — only created when first used)
$_brainModules = [];

function getBrainModule(string $class): ?object {
    global $_brainModules;
    if (!isset($_brainModules[$class])) {
        if (!class_exists($class)) return null;
        try {
            $_brainModules[$class] = new $class('http://127.0.0.1:11434');
        } catch (Exception $e) {
            error_log("WEVIA_BRAIN_MODULE_ERR: $class — " . $e->getMessage());
            return null;
        }
    }
    return $_brainModules[$class];
}

/**
 * Run metacognitive analysis on a query
 * Returns: strategy recommendation + confidence calibration
 */
function brainMetacognize(string $message, string $intent): array {
    $meta = getBrainModule('MetacognitionEngine');
    if (!$meta) return ['strategy' => 'default', 'confidence' => 0.5];
    try {
        return $meta->analyze($message, $intent);
    } catch (Exception $e) { return ['strategy' => 'default', 'confidence' => 0.5]; }
}

/**
 * Optimize context window allocation
 */  
function brainOptimizeContext(string $sys, string $msg, array $history, string $kbContext): string {
    $ctx = getBrainModule('ContextManager');
    if (!$ctx) return $sys;
    try {
        return $ctx->optimize($sys, $msg, $history, $kbContext);
    } catch (Exception $e) { return $sys; }
}

/**
 * Format output optimally
 */
function brainFormatOutput(string $response): string {
    $fmt = getBrainModule('OutputFormatter');
    if (!$fmt) return $response;
    try {
        return $fmt->format($response);
    } catch (Exception $e) { return $response; }
}

/**
 * Smart error recovery
 */
function brainRecoverError(string $error, string $context): ?string {
    $err = getBrainModule('ErrorTaxonomy');
    if (!$err) return null;
    try {
        $classified = $err->classify($error);
        return $err->suggestRecovery($classified, $context);
    } catch (Exception $e) { return null; }
}
HOOK;

file_put_contents("/opt/wevia-brain/s88-brain-hook.php", $hook);
echo "✅ Brain hook created (4 integration functions)\n";

// ═══ VERIFY ALL MODULE FILES EXIST ═══
$modules = glob("/opt/wevia-brain/modules/*/*.php");
echo "✅ " . count($modules) . " brain modules found\n";
foreach ($modules as $m) {
    $size = filesize($m);
    $name = basename($m, '.php');
    echo "  📦 $name (" . number_format($size) . " bytes)\n";
}

echo "\n═══ S88 BRAIN READY ═══\n";
echo "To activate in weval-chatbot-api.php, add AFTER cognitive-brain.php:\n";
echo "  require_once '/opt/wevia-brain/s88-brain-hook.php';\n";
echo "Then use: brainMetacognize(), brainOptimizeContext(), brainFormatOutput(), brainRecoverError()\n";