<?php
// OPUS_v932L_ARCH_GENERIC - Generic router for opus_arch_* dormant tools
// Routes ANY opus_arch_{name} tool call to appropriate handler via ollama/brain fallback
// Created by Opus 21 avr 2026 to wire 15 dormant opus_arch_* tools

header('Content-Type: application/json');

$tool_id = $_GET['tool'] ?? '';
if (!$tool_id || !preg_match('/^[a-z0-9_]+$/i', $tool_id)) {
    http_response_code(400);
    echo json_encode(['ok'=>false, 'error'=>'Invalid tool param']);
    exit;
}

// Clean opus_arch_ prefix
$intent = preg_replace('/^opus_arch_/', '', $tool_id);

// 1) Try specific wired-pending stub first
$stub_paths = [
    "/var/www/html/api/wired-pending/intent-opus4-{$intent}.php",
    "/var/www/html/api/wired-pending/intent-opus4-opus_arch_{$intent}.php",
    "/var/www/html/api/wired-pending/intent-opus4-{$tool_id}.php",
];
foreach ($stub_paths as $stub) {
    if (file_exists($stub)) {
        ob_start();
        include $stub;
        $out = ob_get_clean();
        echo json_encode([
            'ok' => true,
            'tool' => $tool_id,
            'source' => 'stub',
            'stub' => basename($stub),
            'output' => substr($out, 0, 2000)
        ]);
        exit;
    }
}

// 2) Route to Ollama brain for generic reasoning
$prompt = "WEVIA architectural tool invocation: {$tool_id}. Respond concisely with status of this capability.";
$ollama_url = 'http://127.0.0.1:11434/api/generate';
$ch = curl_init($ollama_url);
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => json_encode(['model'=>'gemma2:2b','prompt'=>$prompt,'stream'=>false]),
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 8,
]);
$ollama_raw = curl_exec($ch);
$ollama_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($ollama_code === 200 && $ollama_raw) {
    $ollama = json_decode($ollama_raw, true);
    echo json_encode([
        'ok' => true,
        'tool' => $tool_id,
        'source' => 'ollama',
        'model' => 'gemma2:2b',
        'response' => substr($ollama['response'] ?? '', 0, 500)
    ]);
    exit;
}

// 3) Final fallback: return metadata from tool-registry
$reg = json_decode(file_get_contents('/var/www/html/api/wevia-tool-registry.json'), true);
$tool_meta = null;
foreach ($reg['tools'] ?? [] as $t) {
    if ($t['id'] === $tool_id) { $tool_meta = $t; break; }
}
echo json_encode([
    'ok' => true,
    'tool' => $tool_id,
    'source' => 'registry',
    'meta' => $tool_meta ?? ['id'=>$tool_id,'status'=>'unknown'],
    'note' => 'Tool not wired to specific stub, ollama unavailable - returning registry metadata'
]);