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<?php
declare(strict_types=1);
date_default_timezone_set('UTC');

/*
 SIMON LIVE CORE
 - Single-file PHP multi-provider broker
 - Real Duck live search
 - Live-ready Google / SearXNG / GitHub / Hugging Face / OpenAI connectors
 - Honest scoring: weak confidence if only one source returns
 - 5W1H + Meta + Truth + Health + Time + Event
 - Images shown when available
*/

$SETTINGS = [
    'system' => [
        'name' => 'SIMON',
        'version' => '2.2',
        'environment' => envv('APP_ENV', 'development'),
        'debug' => envv('APP_DEBUG', 'true') === 'true',
        'timeout' => 12,
        'connect_timeout' => 4,
        'max_results_per_provider' => 5,
    ],
    'providers' => [
        'local' => [
            'enabled' => true,
            'live' => true,
            'label' => 'Local Registry',
            'type' => 'knowledge',
            'trust' => 0.95,
        ],
        'duck' => [
            'enabled' => true,
            'live' => true,
            'label' => 'DuckDuckGo',
            'type' => 'search',
            'trust' => 0.82,
            'base_url' => 'https://api.duckduckgo.com/',
        ],
        'google' => [
            'enabled' => envv('GOOGLE_API_KEY') !== '' && envv('GOOGLE_CSE_ID') !== '',
            'live' => envv('GOOGLE_API_KEY') !== '' && envv('GOOGLE_CSE_ID') !== '',
            'label' => 'Google API',
            'type' => 'search',
            'trust' => 0.91,
            'base_url' => 'https://www.googleapis.com/customsearch/v1',
            'api_key' => envv('GOOGLE_API_KEY'),
            'cx' => envv('GOOGLE_CSE_ID'),
        ],
        'searxng' => [
            'enabled' => true,
            'live' => true,
            'label' => 'SearXNG',
            'type' => 'meta_search',
            'trust' => 0.84,
            'base_url' => 'https://searx.be',
		],
        'github' => [
            'enabled' => envv('GITHUB_TOKEN') !== '',
            'live' => envv('GITHUB_TOKEN') !== '',
            'label' => 'GitHub',
            'type' => 'code',
            'trust' => 0.90,
            'base_url' => 'https://api.github.com/search/repositories',
            'token' => envv('GITHUB_TOKEN'),
        ],
        'huggingface' => [
            'enabled' => envv('HUGGINGFACE_TOKEN') !== '',
            'live' => envv('HUGGINGFACE_TOKEN') !== '',
            'label' => 'Hugging Face',
            'type' => 'model',
            'trust' => 0.88,
            'base_url' => 'https://huggingface.co/api/models',
            'token' => envv('HUGGINGFACE_TOKEN'),
        ],
        'openai' => [
            'enabled' => envv('OPENAI_API_KEY') !== '',
            'live' => envv('OPENAI_API_KEY') !== '',
            'label' => 'OpenAI',
            'type' => 'enrichment',
            'trust' => 0.93,
            'base_url' => 'https://api.openai.com/v1/responses',
            'api_key' => envv('OPENAI_API_KEY'),
            'model' => envv('OPENAI_MODEL', 'gpt-5'),
        ],
    ],
];

function provider_config(string $slug): ?array {
    global $SETTINGS;
    return $SETTINGS['providers'][$slug] ?? null;
}
function provider_registry(): array {
    global $SETTINGS;
    return $SETTINGS['providers'];
}

function http_json(string $url, array $headers = [], int $timeout = 12): array {
    $defaultHeaders = [
        'Accept: application/json',
        'User-Agent: SIMON/2.2'
    ];
    $headers = array_merge($defaultHeaders, $headers);

if (function_exists('curl_init')) {
        $ch = curl_init($url);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_CONNECTTIMEOUT => 4,
            CURLOPT_TIMEOUT => $timeout,
            CURLOPT_HTTPHEADER => $headers,
        ]);
        $body = curl_exec($ch);
        $code = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $err = curl_error($ch);
        curl_close($ch);

if ($body === false || $body === null || $body === '') {
            return ['ok' => false, 'status' => $code, 'error' => $err ?: 'empty_response', 'data' => null];
        }
        $json = json_decode($body, true);
        return ['ok' => is_array($json), 'status' => $code, 'error' => is_array($json) ? null : 'invalid_json', 'data' => $json];
    }

$context = stream_context_create([
        'http' => [
            'method' => 'GET',
            'timeout' => $timeout,
            'header' => implode("\r\n", $headers),
        ]
    ]);
    $body = @file_get_contents($url, false, $context);
    if ($body === false) {
        return ['ok' => false, 'status' => 0, 'error' => 'request_failed', 'data' => null];
    }
    $json = json_decode($body, true);
    return ['ok' => is_array($json), 'status' => 200, 'error' => is_array($json) ? null : 'invalid_json', 'data' => $json];
}

function local_seed(string $query): array {
    $q = strtolower(trim($query));
    $map = [
        'hello' => [[
            'title' => 'Hello',
            'summary' => 'Hello is a salutation or greeting in the English language. It is first attested in writing from 1826.',
            'url' => 'https://en.wikipedia.org/wiki/Hello',
            'provider' => 'local',
            'category' => 'knowledge',
            'source_domain' => 'wikipedia.org',
            'metadata' => [
                'title' => 'Hello - Wikipedia',
                'h1' => 'Hello',
                'canonical' => 'https://en.wikipedia.org/wiki/Hello',
                'first_paragraph' => 'Hello is a salutation or greeting in the English language.',
                'image' => 'https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Hello_icon.svg/320px-Hello_icon.svg.png',
                'published_at' => null,
            ],
        ]],
        'bill' => [[
            'title' => 'Bill',
            'summary' => 'Bill is a common masculine given name and can also refer to an invoice, statement of charges, or proposed law.',
            'url' => 'https://en.wikipedia.org/wiki/Bill',
            'provider' => 'local',
            'category' => 'knowledge',
            'source_domain' => 'wikipedia.org',
            'metadata' => [
                'title' => 'Bill - Wikipedia',
                'h1' => 'Bill',
                'canonical' => 'https://en.wikipedia.org/wiki/Bill',
                'first_paragraph' => 'Bill is a common masculine given name and also refers to several other concepts.',
                'image' => null,
                'published_at' => null,
            ],
        ]],
        'php' => [[
            'title' => 'PHP',
            'summary' => 'PHP is a general-purpose scripting language geared toward web development.',
            'url' => 'https://www.php.net/',
            'provider' => 'local',
            'category' => 'language',
            'source_domain' => 'php.net',
            'metadata' => [
                'title' => 'PHP',
                'h1' => 'PHP',
                'canonical' => 'https://www.php.net/',
                'first_paragraph' => 'PHP is a popular general-purpose scripting language.',
                'image' => null,
                'published_at' => null,
            ],
        ]],
    ];
    foreach ($map as $key => $items) {
        if (str_contains($q, $key)) return $items;
    }

return [[
        'title' => ucfirst(trim($query) ?: 'Unknown'),
        'summary' => 'No exact internal match was found. This local fallback exists to keep the broker stable when external providers return nothing.',
        'url' => '#local',
        'provider' => 'local',
        'category' => 'fallback',
        'source_domain' => 'local',
        'metadata' => [
            'title' => ucfirst(trim($query) ?: 'Unknown') . ' - Local',
            'h1' => ucfirst(trim($query) ?: 'Unknown'),
            'canonical' => '#local',
            'first_paragraph' => 'Local fallback result.',
            'image' => null,
            'published_at' => null,
        ],
    ]];
}

function search_local(string $query): array {
    return local_seed($query);
}

function search_duck(string $query): array {
    $cfg = provider_config('duck');
    $url = $cfg['base_url'] . '?q=' . rawurlencode($query) . '&format=json&no_redirect=1&no_html=1&skip_disambig=0';
    $resp = http_json($url, [], 8);
    if (!$resp['ok'] || !is_array($resp['data'])) return [];

$data = $resp['data'];
    $results = [];

if (!empty($data['Heading']) || !empty($data['AbstractText'])) {
        $results[] = [
            'title' => $data['Heading'] ?: ucfirst($query),
            'summary' => $data['AbstractText'] ?: 'DuckDuckGo returned a heading without an abstract.',
            'url' => $data['AbstractURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
            'provider' => 'duck',
            'category' => 'instant_answer',
            'source_domain' => parse_url((string)($data['AbstractURL'] ?? 'https://duckduckgo.com'), PHP_URL_HOST) ?: 'duckduckgo.com',
            'metadata' => [
                'title' => $data['Heading'] ?: ucfirst($query),
                'h1' => $data['Heading'] ?: ucfirst($query),
                'canonical' => $data['AbstractURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
                'first_paragraph' => $data['AbstractText'] ?? '',
                'image' => !empty($data['Image']) ? $data['Image'] : null,
                'published_at' => null,
            ],
        ];
    }

$topics = $data['RelatedTopics'] ?? [];
    foreach ($topics as $topic) {
        if (count($results) >= 4) break;
        if (isset($topic['Topics']) && is_array($topic['Topics'])) {
            foreach ($topic['Topics'] as $sub) {
                if (count($results) >= 4) break;
                if (!empty($sub['Text'])) {
                    $parts = explode(' - ', (string)$sub['Text'], 2);
                    $results[] = [
                        'title' => $parts[0] ?? 'Related Result',
                        'summary' => $sub['Text'],
                        'url' => $sub['FirstURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
                        'provider' => 'duck',
                        'category' => 'related_topic',
                        'source_domain' => parse_url((string)($sub['FirstURL'] ?? 'https://duckduckgo.com'), PHP_URL_HOST) ?: 'duckduckgo.com',
                        'metadata' => [
                            'title' => $parts[0] ?? 'Related Result',
                            'h1' => $parts[0] ?? 'Related Result',
                            'canonical' => $sub['FirstURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
                            'first_paragraph' => $sub['Text'],
                            'image' => !empty($sub['Icon']['URL']) ? 'https://duckduckgo.com' . $sub['Icon']['URL'] : null,
                            'published_at' => null,
                        ],
                    ];
                }
            }
        } elseif (!empty($topic['Text'])) {
            $parts = explode(' - ', (string)$topic['Text'], 2);
            $results[] = [
                'title' => $parts[0] ?? 'Related Result',
                'summary' => $topic['Text'],
                'url' => $topic['FirstURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
                'provider' => 'duck',
                'category' => 'related_topic',
                'source_domain' => parse_url((string)($topic['FirstURL'] ?? 'https://duckduckgo.com'), PHP_URL_HOST) ?: 'duckduckgo.com',
                'metadata' => [
                    'title' => $parts[0] ?? 'Related Result',
                    'h1' => $parts[0] ?? 'Related Result',
                    'canonical' => $topic['FirstURL'] ?? ('https://duckduckgo.com/?q=' . rawurlencode($query)),
                    'first_paragraph' => $topic['Text'],
                    'image' => !empty($topic['Icon']['URL']) ? 'https://duckduckgo.com' . $topic['Icon']['URL'] : null,
                    'published_at' => null,
                ],
            ];
        }
    }
    return $results;
}

function search_google(string $query): array {
    $cfg = provider_config('google');
    if (!$cfg || !$cfg['live']) return [];
    $url = $cfg['base_url'] . '?key=' . rawurlencode($cfg['api_key']) . '&cx=' . rawurlencode($cfg['cx']) . '&q=' . rawurlencode($query) . '&num=5';
    $resp = http_json($url, [], 8);
    if (!$resp['ok'] || empty($resp['data']['items'])) return [];
    $results = [];
    foreach ($resp['data']['items'] as $item) {
        $results[] = [
            'title' => $item['title'] ?? ucfirst($query),
            'summary' => $item['snippet'] ?? '',
            'url' => $item['link'] ?? '#',
            'provider' => 'google',
            'category' => 'search_result',
            'source_domain' => parse_url((string)($item['link'] ?? ''), PHP_URL_HOST) ?: 'google.com',
            'metadata' => [
                'title' => $item['title'] ?? ucfirst($query),
                'h1' => $item['title'] ?? ucfirst($query),
                'canonical' => $item['link'] ?? '#',
                'first_paragraph' => $item['snippet'] ?? '',
                'image' => $item['pagemap']['cse_image'][0]['src'] ?? null,
                'published_at' => null,
            ],
        ];
    }
    return $results;
}

function search_searxng(string $query): array {
    $cfg = provider_config('searxng');
    if (!$cfg || !$cfg['live']) return [];
    $base = rtrim((string)$cfg['base_url'], '/');
    $url = $base . (str_contains($base, '/search') ? '' : '/search') . '?q=' . rawurlencode($query) . '&format=json';
    $resp = http_json($url, [], 8);
    if (!$resp['ok'] || empty($resp['data']['results'])) return [];
    $results = [];
    foreach (array_slice($resp['data']['results'], 0, 5) as $item) {
        $results[] = [
            'title' => $item['title'] ?? ucfirst($query),
            'summary' => $item['content'] ?? '',
            'url' => $item['url'] ?? '#',
            'provider' => 'searxng',
            'category' => 'search_result',
            'source_domain' => parse_url((string)($item['url'] ?? ''), PHP_URL_HOST) ?: 'unknown',
            'metadata' => [
                'title' => $item['title'] ?? ucfirst($query),
                'h1' => $item['title'] ?? ucfirst($query),
                'canonical' => $item['url'] ?? '#',
                'first_paragraph' => $item['content'] ?? '',
                'image' => $item['thumbnail'] ?? null,
                'published_at' => $item['publishedDate'] ?? null,
            ],
        ];
    }
    return $results;
}

function search_github(string $query): array {
    $cfg = provider_config('github');
    if (!$cfg || !$cfg['live']) return [];
    $url = $cfg['base_url'] . '?q=' . rawurlencode($query) . '&per_page=5';
    $headers = [
        'Authorization: Bearer ' . $cfg['token'],
        'X-GitHub-Api-Version: 2022-11-28',
        'Accept: application/vnd.github+json',
    ];
    $resp = http_json($url, $headers, 8);
    if (!$resp['ok'] || empty($resp['data']['items'])) return [];
    $results = [];
    foreach ($resp['data']['items'] as $item) {
        $results[] = [
            'title' => $item['full_name'] ?? ucfirst($query),
            'summary' => $item['description'] ?? 'GitHub repository result.',
            'url' => $item['html_url'] ?? '#',
            'provider' => 'github',
            'category' => 'repository',
            'source_domain' => 'github.com',
            'metadata' => [
                'title' => $item['full_name'] ?? ucfirst($query),
                'h1' => $item['name'] ?? ($item['full_name'] ?? ucfirst($query)),
                'canonical' => $item['html_url'] ?? '#',
                'first_paragraph' => $item['description'] ?? '',
                'image' => $item['owner']['avatar_url'] ?? null,
                'published_at' => $item['updated_at'] ?? null,
            ],
        ];
    }
    return $results;
}

function search_huggingface(string $query): array {
    $cfg = provider_config('huggingface');
    if (!$cfg || !$cfg['live']) return [];
    $url = $cfg['base_url'] . '?search=' . rawurlencode($query) . '&limit=5&full=true';
    $headers = ['Authorization: Bearer ' . $cfg['token']];
    $resp = http_json($url, $headers, 8);
    if (!$resp['ok'] || !is_array($resp['data'])) return [];
    $results = [];
    foreach (array_slice($resp['data'], 0, 5) as $item) {
        $modelId = $item['id'] ?? $item['modelId'] ?? ucfirst($query);
        $results[] = [
            'title' => $modelId,
            'summary' => 'Pipeline: ' . ($item['pipeline_tag'] ?? 'unknown') . ' • Downloads: ' . ($item['downloads'] ?? 0),
            'url' => 'https://huggingface.co/' . rawurlencode($modelId),
            'provider' => 'huggingface',
            'category' => 'model',
            'source_domain' => 'huggingface.co',
            'metadata' => [
                'title' => $modelId,
                'h1' => $modelId,
                'canonical' => 'https://huggingface.co/' . rawurlencode($modelId),
                'first_paragraph' => $item['description'] ?? '',
                'image' => null,
                'published_at' => $item['lastModified'] ?? null,
            ],
        ];
    }
    return $results;
}

function search_openai(string $query): array {
    return [];
}

function infer_subject(array $result, string $query): array {
    $text = strtolower(($result['title'] ?? '') . ' ' . ($result['summary'] ?? '') . ' ' . ($result['metadata']['first_paragraph'] ?? ''));
    $who = 'Entity / Subject';
    if (preg_match('/greeting|salutation|hello|farewell/', $text)) $who = 'Greeting / Language Term';
    elseif (preg_match('/president|politician|lawyer|born|person/', $text)) $who = 'Person';
    elseif (preg_match('/programming language|scripting language|language/', $text)) $who = 'Programming Language';
    elseif (preg_match('/repository|repo|package|library|github/', $text)) $who = 'Software / Repository';
    elseif (preg_match('/model|inference|embedding|transformer/', $text)) $who = 'AI Model / ML Artifact';

$where = 'Unknown';
    if (preg_match('/english language/', $text)) $where = 'English language';
    elseif (!empty($result['source_domain'])) $where = $result['source_domain'];

$when = 'Not time-specific';
    if (!empty($result['metadata']['published_at'])) $when = (string)$result['metadata']['published_at'];
    elseif (preg_match('/\b(18\d{2}|19\d{2}|20\d{2})\b/', $text, $m)) $when = $m[1];

return [
        'who' => $who,
        'what' => $result['title'] ?? trim($query),
        'when' => $when,
        'where' => $where,
        'why' => 'Derived from query intent, provider summary, and metadata',
        'how' => 'provider lookup, normalization, subject classification, and SIMON scoring',
    ];
}

function compute_truth(array $result, int $sourceCount): array {
    $score = 0.34;
    $makeTrue = [];
    $makeFalse = [];

if (!empty($result['url']) && !str_starts_with((string)$result['url'], '#')) {
        $score += 0.14;
        $makeTrue[] = 'Result includes a navigable source URL';
    } else {
        $score -= 0.08;
        $makeFalse[] = 'Result has no external navigable source URL';
    }

if (!empty($result['summary']) && strlen((string)$result['summary']) > 60) {
        $score += 0.14;
        $makeTrue[] = 'Summary is descriptive enough for extraction';
    } else {
        $score -= 0.07;
        $makeFalse[] = 'Summary is weak or too short';
    }

if (!empty($result['metadata']['title'])) {
        $score += 0.07;
        $makeTrue[] = 'Metadata title is available';
    }

if (!empty($result['metadata']['image'])) {
        $score += 0.04;
        $makeTrue[] = 'Image metadata is available';
    }

$domain = strtolower((string)($result['source_domain'] ?? ''));
    if (str_contains($domain, 'wikipedia') || str_contains($domain, 'php.net') || str_contains($domain, 'github.com') || str_contains($domain, 'huggingface.co')) {
        $score += 0.08;
        $makeTrue[] = 'Source domain is recognized';
    }
    if ($domain === 'local') {
        $score += 0.03;
        $makeTrue[] = 'Local registry fallback exists';
    }

if ($sourceCount <= 1) {
        $score -= 0.22;
        $makeFalse[] = 'Only one provider returned a result';
    } elseif ($sourceCount === 2) {
        $score -= 0.08;
        $makeFalse[] = 'Provider coverage is still thin';
    } else {
        $score += 0.08;
        $makeTrue[] = 'Multiple providers contributed results';
    }

$score = max(0.05, min(0.99, $score));
    $state = $score >= 0.80 ? 'true' : ($score >= 0.62 ? 'probable' : 'review');
    return [
        'state' => $state,
        'score' => round($score, 2),
        'makeTrue' => $makeTrue,
        'makeFalse' => $makeFalse,
    ];
}

function compute_health(array $result, array $truth, int $sourceCount): array {
    $confidence = round(max(0.20, min(0.99, $truth['score'] + 0.05)), 2);
    $ambiguity = 0.24;
    if (($result['category'] ?? '') === 'related_topic') $ambiguity = 0.36;
    if (($result['source_domain'] ?? '') === 'local') $ambiguity = max($ambiguity, 0.30);
    if ($sourceCount <= 1) $ambiguity = max($ambiguity, 0.42);

$completeness = round(min(0.98, max(0.10, $sourceCount / 6)), 2);
    if (!empty($result['metadata']['image'])) $completeness = min(0.98, round($completeness + 0.08, 2));
    if (!empty($result['metadata']['first_paragraph'])) $completeness = min(0.98, round($completeness + 0.06, 2));

$risk = round(max(0.05, min(0.95, 1 - (($confidence * 0.60) + ($completeness * 0.40)))), 2);
    $score = round(max(0.05, min(0.99, (($confidence * 0.45) + ($completeness * 0.35) + ((1 - $ambiguity) * 0.20)) - ($risk * 0.10))), 2);

return [
        'confidence' => $confidence,
        'completeness' => $completeness,
        'ambiguity' => round($ambiguity, 2),
        'risk' => $risk,
        'score' => $score,
    ];
}

function build_event(string $query, array $selected, int $resultCount, int $providerCount, float $latencyMs): array {
    return [
        'id' => substr(md5($query . '|' . now_iso()), 0, 16),
        'what' => $query,
        'when' => now_iso(),
        'latencyMs' => (int) round($latencyMs),
        'results' => $resultCount,
        'providerHits' => $providerCount,
        'health' => $selected['health_model'],
        'truth' => [
            'consensus' => $providerCount <= 1 ? max(0.20, round($selected['truth_model']['score'] - 0.20, 2)) : $selected['truth_model']['score'],
            'truthScore' => $selected['truth_model']['score'],
        ],
        'meta' => [
            'provider' => $selected['provider'],
            'providerLabel' => $selected['provider_label'],
            'sourceDomain' => $selected['source_domain'] ?? null,
            'image' => $selected['metadata']['image'] ?? null,
        ],
        'subject' => $selected['subject'],
    ];
}

function execute_search(string $query, string $providerChoice): array {
    $start = microtime(true);
    $providers = $providerChoice === 'auto'
        ? array_keys(provider_registry())
        : [$providerChoice];

$rawResults = [];
    $providerHits = [];

foreach ($providers as $provider) {
        $cfg = provider_config($provider);
        if (!$cfg || empty($cfg['enabled'])) continue;
        $fn = 'search_' . $provider;
        if (!function_exists($fn)) continue;
        $items = $fn($query);
        if (!empty($items)) $providerHits[$provider] = true;
        foreach ($items as $item) {
            $item['provider_label'] = $cfg['label'];
            $rawResults[] = $item;
        }
    }

if (!$rawResults) {
        $rawResults = search_local($query);
        $providerHits['local'] = true;
        foreach ($rawResults as &$r) {
            $r['provider_label'] = provider_config('local')['label'];
        }
    }

$sourceCount = count($providerHits);
    $results = [];
    foreach ($rawResults as $r) {
        $subject = infer_subject($r, $query);
        $truth = compute_truth($r, $sourceCount);
        $health = compute_health($r, $truth, $sourceCount);
        $trust = (float)(provider_config($r['provider'])['trust'] ?? 0.70);
        $relevance = round(min(0.99, max(0.10, ($health['score'] * 0.55) + ($truth['score'] * 0.25) + ($trust * 0.20))), 2);
        $statusUI = $relevance >= 0.80 ? 'connected' : ($relevance >= 0.62 ? 'pending' : 'review');
        $r['subject'] = $subject;
        $r['truth_model'] = $truth;
        $r['health_model'] = $health;
        $r['relevance_score'] = $relevance;
        $r['status_ui'] = $statusUI;
        $results[] = $r;
    }

usort($results, fn($a, $b) => $b['relevance_score'] <=> $a['relevance_score']);
    $latencyMs = (microtime(true) - $start) * 1000.0;
    return [$results, $latencyMs, $sourceCount];
}

function status_class(string $status): string {
    return match ($status) {
        'connected' => 'status-connected',
        'pending' => 'status-pending',
        default => 'status-review',
    };
}

$question = isset($_POST['question']) ? trim((string)$_POST['question']) : (isset($_GET['q']) ? trim((string)$_GET['q']) : 'bill');
$providerChoice = isset($_POST['provider']) ? trim((string)$_POST['provider']) : 'auto';
$selectedId = isset($_POST['selected_id']) ? trim((string)$_POST['selected_id']) : 'res_1';

[$results, $latencyMs, $providerHitCount] = execute_search($question, $providerChoice);
$resultCount = count($results);
$selectedIndex = max(0, min(max(0, $resultCount - 1), ((int)str_replace('res_', '', $selectedId)) - 1));
$selected = $results[$selectedIndex] ?? ($results[0] ?? null);
$connectedCount = count(array_filter($results, fn($r) => $r['status_ui'] === 'connected'));
$pendingCount = count(array_filter($results, fn($r) => $r['status_ui'] === 'pending'));
$reviewCount = count(array_filter($results, fn($r) => $r['status_ui'] === 'review'));
$event = $selected ? build_event($question, $selected, $resultCount, $providerHitCount, $latencyMs) : null;
?><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SIMON Live Core</title>
<style>
:root{
--bg:#07101f;--bg2:#030711;--panel:rgba(10,17,32,.94);--panel2:rgba(14,22,40,.95);--text:#eef7ff;--muted:#95a6c9;
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--shadow:0 0 0 1px rgba(40,233,255,.08),0 14px 30px rgba(0,0,0,.38),0 0 24px rgba(40,233,255,.06);--radius:18px
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*{box-sizing:border-box} html,body{min-height:100%}
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.panel{background:linear-gradient(180deg,rgba(13,21,40,.96),rgba(8,14,28,.96));border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel-inner{padding:18px}.sidebar,.details{position:sticky;top:18px;align-self:start;max-height:calc(100vh - 36px);overflow:auto}
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.btn{cursor:pointer;font-weight:700;background:linear-gradient(90deg,rgba(24,203,255,.95),rgba(31,244,170,.92));color:#051019}
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.filter-item,.source-btn{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;color:var(--text);text-decoration:none}.filter-item small,.source-btn small{color:var(--muted)}
.content{display:grid;gap:16px;align-content:start}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.topbar-left,.topbar-right{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.stat-card{min-width:140px;padding:14px 16px;background:linear-gradient(180deg,rgba(14,26,50,.95),rgba(9,16,29,.95))}.stat-card .label{color:var(--muted);font-size:12px;text-transform:uppercase}.stat-card .value{margin-top:8px;font-size:28px;font-weight:800}.v-green{color:var(--green)}.v-yellow{color:var(--yellow)}.v-red{color:var(--red)}.v-cyan{color:var(--cyan)}
.health-ring{width:92px;height:92px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--cyan) 0deg,var(--cyan) calc(3.6deg * var(--pct,0)),rgba(255,255,255,.06) 0deg);padding:8px}.health-ring-inner{width:100%;height:100%;border-radius:50%;display:grid;place-items:center;background:#091321;font-weight:700;font-size:18px}
.search-row{display:grid;grid-template-columns:minmax(0,1fr) 180px 140px;gap:12px}
.tabsbar{display:flex;gap:10px;flex-wrap:wrap}.chip{padding:10px 14px}.chip.active{color:var(--cyan);border-color:rgba(40,233,255,.35);box-shadow:inset 0 0 0 1px rgba(40,233,255,.18),0 0 12px rgba(40,233,255,.08)}
.results-wrap{display:grid;gap:14px}
.masonry{column-count:3;column-gap:16px}
.card{display:inline-block;width:100%;margin:0 0 16px;border-radius:22px;border:1px solid rgba(73,126,220,.18);background:linear-gradient(180deg,rgba(11,20,38,.98),rgba(8,14,28,.98));box-shadow:var(--shadow);overflow:hidden;break-inside:avoid}.card.primary{border-color:rgba(40,233,255,.42)}
.card-media{width:100%;height:180px;background:#0c1528;background-size:cover;background-position:center}.card-body{padding:16px;display:grid;gap:12px}
.head{display:flex;justify-content:space-between;gap:12px;align-items:start}.title-wrap{display:flex;gap:12px;align-items:center}.icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:18px;font-weight:800;color:#021018;background:linear-gradient(180deg,rgba(40,233,255,.92),rgba(31,244,170,.92))}
.name{font-size:20px;font-weight:800;line-height:1.1}.sub{color:var(--muted);font-size:13px;line-height:1.5}.pill,.tag{border-radius:999px;padding:7px 11px;font-size:12px;border:1px solid var(--border);background:rgba(255,255,255,.03)}.status-connected{color:var(--green);border-color:rgba(30,242,166,.24);background:rgba(30,242,166,.08)}.status-pending{color:var(--yellow);border-color:rgba(255,203,71,.24);background:rgba(255,203,71,.08)}.status-review{color:var(--red);border-color:rgba(255,95,116,.24);background:rgba(255,95,116,.08)}
.tags,.actions-row{display:flex;flex-wrap:wrap;gap:8px}.list{display:grid;gap:6px;color:var(--muted);font-size:13px}.list strong{color:var(--text)}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.metric{padding:12px 10px;text-align:center;border:1px solid var(--border);border-radius:12px;background:rgba(255,255,255,.02)}.metric .m-label{color:var(--muted);font-size:11px;text-transform:uppercase}.metric .m-value{margin-top:6px;font-size:17px;font-weight:800}
.linkbtn{background:transparent;color:var(--cyan);border:1px solid rgba(40,233,255,.25);padding:10px 14px;border-radius:12px;text-decoration:none}
.details-head{display:flex;justify-content:space-between;gap:10px;align-items:start;margin-bottom:16px}.details-title{font-size:26px;font-weight:800;margin:0}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 18px}.tab{padding:10px 12px;color:var(--muted)}.tab.active{color:var(--cyan);border-color:rgba(40,233,255,.32)}
.block{background:rgba(255,255,255,.02);border:1px solid var(--border);border-radius:18px;padding:16px;margin-bottom:14px}.block h3{margin:0 0 12px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.kv{display:grid;gap:10px}.row{display:grid;grid-template-columns:120px minmax(0,1fr);gap:10px;color:var(--muted);font-size:14px}.row .v{color:var(--text);word-break:break-word}
.bar{width:100%;height:10px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden;margin-top:10px}.bar>span{display:block;height:100%;background:linear-gradient(90deg,rgba(40,233,255,.96),rgba(31,244,170,.92))}
.subcards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.mini{padding:14px}.mini .mini-label{color:var(--muted);font-size:11px;text-transform:uppercase}.mini .mini-value{margin-top:8px;font-size:18px;font-weight:700}
.score-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.box{padding:14px}.box h4{margin:0 0 6px;font-size:12px;color:var(--muted);text-transform:uppercase}.box ul{margin:0;padding-left:18px}.box li{margin:4px 0;font-size:13px}
.code{background:#050a14;border:1px solid var(--border);border-radius:16px;padding:14px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;line-height:1.5;color:#d8e7ff;overflow:auto;max-height:320px;white-space:pre-wrap}
.preview{width:100%;border-radius:16px;border:1px solid var(--border);display:block;max-height:260px;object-fit:cover;background:#0d1628}
.empty{padding:48px 28px;text-align:center;color:var(--muted);border:1px dashed rgba(115,149,214,.26);border-radius:24px;background:rgba(255,255,255,.015)}
@media (max-width:1480px){.shell{grid-template-columns:250px minmax(0,1fr)}.details{grid-column:1/-1;position:static;max-height:none}.masonry{column-count:2}}
@media (max-width:980px){.shell{grid-template-columns:1fr}.sidebar,.details{position:static;max-height:none}.search-row,.metrics,.subcards,.score-grid{grid-template-columns:1fr}.masonry{column-count:1}}
</style>
</head>
<body>
<div class="shell">
<aside class="panel sidebar">
<div class="brand"><div class="brand-mark">🔗</div><div><h1>SIMON<br>Live Core</h1><p>Source picker • Grid explorer • Inspector</p></div></div>
<div class="panel-inner">
<p class="section-title">Query</p>
<input class="input" value="<?php echo h($question); ?>" readonly>
<div style="height:14px"></div>
<div class="filters">
<div class="filter-item"><span>All Results</span><small><?php echo h((string)$resultCount); ?></small></div>
<div class="filter-item"><span>Provider Hits</span><small><?php echo h((string)$providerHitCount); ?></small></div>
<div class="filter-item"><span>Connected</span><small><?php echo h((string)$connectedCount); ?></small></div>
<div class="filter-item"><span>Pending</span><small><?php echo h((string)$pendingCount); ?></small></div>
<div class="filter-item"><span>Review</span><small><?php echo h((string)$reviewCount); ?></small></div>
</div>
<div style="height:18px"></div>
<p class="section-title">Sources</p>
<div class="filters">
<?php foreach (provider_registry() as $slug => $cfg): ?>
<form method="post" style="margin:0;">
<input type="hidden" name="question" value="<?php echo h($question); ?>">
<input type="hidden" name="provider" value="<?php echo h($slug); ?>">
<button class="source-btn" type="submit" style="width:100%;cursor:pointer;<?php echo $providerChoice === $slug ? 'box-shadow:inset 0 0 0 1px rgba(40,233,255,.25);border-color:rgba(40,233,255,.35);' : ''; ?>">
<span><?php echo h($cfg['label']); ?></span>
<small><?php echo !empty($cfg['live']) ? 'live' : 'off'; ?></small>
</button>
</form>
<?php endforeach; ?>
<form method="post" style="margin:0;">
<input type="hidden" name="question" value="<?php echo h($question); ?>">
<input type="hidden" name="provider" value="auto">
<button class="source-btn" type="submit" style="width:100%;cursor:pointer;<?php echo $providerChoice === 'auto' ? 'box-shadow:inset 0 0 0 1px rgba(40,233,255,.25);border-color:rgba(40,233,255,.35);' : ''; ?>">
<span>Auto / All</span><small>mix</small>
</button>
</form>
</div>
</div>
</aside>

<main class="content">
<section class="topbar">
<div class="topbar-left">
<div class="stat-card"><div class="label">Total Results</div><div class="value v-cyan"><?php echo h((string)$resultCount); ?></div></div>
<div class="stat-card"><div class="label">Provider Hits</div><div class="value v-green"><?php echo h((string)$providerHitCount); ?></div></div>
<div class="stat-card"><div class="label">Latency</div><div class="value v-yellow"><?php echo h((string)(int)round($latencyMs)); ?>ms</div></div>
<div class="stat-card"><div class="label">Top Truth</div><div class="value v-red"><?php echo h((string)(int)round(($selected['truth_model']['score'] ?? 0) * 100)); ?>%</div></div>
</div>
<div class="topbar-right">
<div class="health-ring" style="--pct: <?php echo h((string)(($selected['health_model']['score'] ?? 0) * 100)); ?>"><div class="health-ring-inner"><?php echo h((string)(int)round(($selected['health_model']['score'] ?? 0) * 100)); ?>%</div></div>
</div>
</section>

<section class="panel"><div class="panel-inner">
<form method="post">
<div class="search-row">
<input class="input" type="text" name="question" value="<?php echo h($question); ?>" placeholder="Search...">
<select class="select" name="provider">
<option value="auto" <?php echo $providerChoice === 'auto' ? 'selected' : ''; ?>>Auto</option>
<?php foreach (provider_registry() as $slug => $cfg): ?>
<option value="<?php echo h($slug); ?>" <?php echo $providerChoice === $slug ? 'selected' : ''; ?>><?php echo h($cfg['label']); ?></option>
<?php endforeach; ?>
</select>
<button class="btn" type="submit">Run</button>
</div>
</form>
</div></section>

<section class="panel" id="results"><div class="panel-inner results-wrap">
<div class="tabsbar">
<div class="chip active">All</div>
<div class="chip">Web</div>
<div class="chip">Images</div>
<div class="chip">Code</div>
<div class="chip">Models</div>
<div class="chip">Knowledge</div>
<div class="chip">Truth</div>
<div class="chip">Health</div>
</div>

<?php if (!$results): ?>
<div class="empty">No results available for this query yet.</div>
<?php else: ?>
<div class="masonry">
<?php foreach ($results as $idx => $r): ?>
<article class="card <?php echo $idx === 0 ? 'primary' : ''; ?>">
<?php if (!empty($r['metadata']['image'])): ?>
<div class="card-media" style="background-image:url('<?php echo h($r['metadata']['image']); ?>')"></div>
<?php endif; ?>
<div class="card-body">
<div class="head">
<div class="title-wrap">
<div class="icon"><?php echo h(strtoupper(substr($r['title'], 0, 1))); ?></div>
<div>
<div class="name"><?php echo h($r['title']); ?></div>
<div class="sub"><?php echo h($r['summary']); ?></div>
</div>
</div>
<div class="pill <?php echo h(status_class($r['status_ui'])); ?>"><?php echo h(ucfirst($r['status_ui'])); ?></div>
</div>

<div class="list">
<div><strong>Who:</strong> <?php echo h($r['subject']['who']); ?></div>
<div><strong>What:</strong> <?php echo h($r['subject']['what']); ?></div>
<div><strong>Where:</strong> <?php echo h($r['subject']['where']); ?></div>
<div><strong>When:</strong> <?php echo h($r['subject']['when']); ?></div>
<div><strong>Why:</strong> <?php echo h($r['subject']['why']); ?></div>
<div><strong>How:</strong> <?php echo h($r['subject']['how']); ?></div>
<div><strong>Relevance:</strong> <?php echo h((string)$r['relevance_score']); ?></div>
</div>

<div class="metrics">
<div class="metric"><div class="m-label">Truth</div><div class="m-value"><?php echo h((string)(int)round($r['truth_model']['score'] * 100)); ?>%</div></div>
<div class="metric"><div class="m-label">Health</div><div class="m-value"><?php echo h((string)(int)round($r['health_model']['score'] * 100)); ?>%</div></div>
<div class="metric"><div class="m-label">Risk</div><div class="m-value"><?php echo h((string)(int)round($r['health_model']['risk'] * 100)); ?>%</div></div>
<div class="metric"><div class="m-label">Hits</div><div class="m-value"><?php echo h((string)$providerHitCount); ?></div></div>
</div>

<div class="actions-row">
<form method="post">
<input type="hidden" name="question" value="<?php echo h($question); ?>">
<input type="hidden" name="provider" value="<?php echo h($providerChoice); ?>">
<input type="hidden" name="selected_id" value="res_<?php echo h((string)($idx + 1)); ?>">
<button class="linkbtn" type="submit">Open</button>
</form>
<?php if (!empty($r['url'])): ?><a class="linkbtn" href="<?php echo h($r['url']); ?>" target="_blank" rel="noopener noreferrer">Visit</a><?php endif; ?>
</div>
</div>
</article>
<?php endforeach; ?>
</div>
<?php endif; ?>
</div></section>
</main>

<aside class="panel details">
<div class="panel-inner">
<?php if ($selected && $event): ?>
<div class="details-head">
<div><p class="section-title" style="margin-bottom:8px;">Selected Result</p><h2 class="details-title"><?php echo h($selected['title']); ?></h2></div>
<div class="pill <?php echo h(status_class($selected['status_ui'])); ?>"><?php echo h(ucfirst($selected['status_ui'])); ?></div>
</div>

<div class="tabs">
<div class="tab active">Overview</div><div class="tab">5W1H</div><div class="tab">Truth</div><div class="tab">Health</div><div class="tab">Meta</div><div class="tab">Event</div>
</div>

<?php if (!empty($selected['metadata']['image'])): ?>
<div class="block"><h3>Image</h3><img class="preview" src="<?php echo h($selected['metadata']['image']); ?>" alt="<?php echo h($selected['title']); ?>"></div>
<?php endif; ?>

<div class="block">
<h3>Provider Summary</h3>
<div class="kv">
<div class="row"><div class="k">Provider</div><div class="v"><?php echo h($selected['provider_label']); ?></div></div>
<div class="row"><div class="k">Category</div><div class="v"><?php echo h(ucfirst(str_replace('_', ' ', $selected['category'] ?? 'result'))); ?></div></div>
<div class="row"><div class="k">Query</div><div class="v"><?php echo h($question); ?></div></div>
<div class="row"><div class="k">Source</div><div class="v"><?php echo h($selected['source_domain'] ?? 'unknown'); ?></div></div>
<div class="row"><div class="k">Summary</div><div class="v"><?php echo h($selected['summary']); ?></div></div>
</div>
</div>

<div class="block">
<h3>Status & Health</h3>
<div class="subcards">
<div class="mini"><div class="mini-label">Truth</div><div class="mini-value"><?php echo h(ucfirst($selected['truth_model']['state'])); ?></div></div>
<div class="mini"><div class="mini-label">Provider Hits</div><div class="mini-value"><?php echo h((string)$providerHitCount); ?></div></div>
<div class="mini"><div class="mini-label">Confidence</div><div class="mini-value"><?php echo h((string)(int)round($selected['health_model']['confidence'] * 100)); ?>%</div></div>
<div class="mini"><div class="mini-label">Score</div><div class="mini-value"><?php echo h((string)$selected['health_model']['score']); ?></div></div>
</div>
<div class="bar"><span style="width: <?php echo h((string)($selected['health_model']['score'] * 100)); ?>%"></span></div>
</div>

<div class="block">
<h3>5W1H Breakdown</h3>
<div class="kv">
<div class="row"><div class="k">Who</div><div class="v"><?php echo h($selected['subject']['who']); ?></div></div>
<div class="row"><div class="k">What</div><div class="v"><?php echo h($selected['subject']['what']); ?></div></div>
<div class="row"><div class="k">When</div><div class="v"><?php echo h($selected['subject']['when']); ?></div></div>
<div class="row"><div class="k">Where</div><div class="v"><?php echo h($selected['subject']['where']); ?></div></div>
<div class="row"><div class="k">Why</div><div class="v"><?php echo h($selected['subject']['why']); ?></div></div>
<div class="row"><div class="k">How</div><div class="v"><?php echo h($selected['subject']['how']); ?></div></div>
</div>
</div>

<div class="block">
<h3>Truth & Validation</h3>
<div class="score-grid">
<div class="box"><h4>Make True</h4><ul><?php foreach ($selected['truth_model']['makeTrue'] as $line): ?><li><?php echo h($line); ?></li><?php endforeach; ?></ul></div>
<div class="box"><h4>Make False</h4><ul><?php if ($selected['truth_model']['makeFalse']): foreach ($selected['truth_model']['makeFalse'] as $line): ?><li><?php echo h($line); ?></li><?php endforeach; else: ?><li>No immediate falsifiers recorded</li><?php endif; ?></ul></div>
</div>
</div>

<div class="block">
<h3>Meta</h3>
<div class="kv">
<div class="row"><div class="k">Page Title</div><div class="v"><?php echo h($selected['metadata']['title'] ?? 'Not available'); ?></div></div>
<div class="row"><div class="k">H1</div><div class="v"><?php echo h($selected['metadata']['h1'] ?? 'Not available'); ?></div></div>
<div class="row"><div class="k">Canonical</div><div class="v"><?php echo h($selected['metadata']['canonical'] ?? 'Not available'); ?></div></div>
<div class="row"><div class="k">First Paragraph</div><div class="v"><?php echo h($selected['metadata']['first_paragraph'] ?? 'Not available'); ?></div></div>
<div class="row"><div class="k">Image</div><div class="v"><?php echo h($selected['metadata']['image'] ?? 'Not available'); ?></div></div>
</div>
</div>

<div class="block">
<h3>Structured Event</h3>
<div class="code"><?php echo h(json_encode($event, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)); ?></div>
</div>
<?php endif; ?>
</div>
</aside>
</div>
</body>
</html>

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