<?php
// V77 WEVIA Coherence + Gap Analyzer
// Detects inconsistencies between declared vs actual counts
// Allows WEVIA Master to self-report issues and trigger fixes

header("Content-Type: application/json");
$action = $_REQUEST["action"] ?? "check";

function safe_json($path) {
    if (!is_readable($path)) return null;
    return json_decode(@file_get_contents($path), true);
}

function http_json($url, $timeout = 5) {
    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => $timeout,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_HTTPHEADER => ["Host: weval-consulting.com"]
    ]);
    $body = curl_exec($ch);
    curl_close($ch);
    return $body ? json_decode($body, true) : null;
}

if ($action === "check") {
    $issues = [];
    
    // Check 1: gaps hardcoded vs reality
    $agent_factory = http_json("http://127.0.0.1/api/wevia-agent-factory.php?action=count");
    $real_gaps = $agent_factory["total_missing"] ?? 0;
    $stubs_count = count(glob("/var/www/html/api/agent-stubs/agent_*.php"));
    
    // Scan all pages for hardcoded gap numbers
    $pages = glob("/var/www/html/*.html");
    $gap_patterns = ["47 gaps", "54 gaps", "150 gaps"];
    $hardcoded_gaps = [];
    foreach ($pages as $p) {
        $c = @file_get_contents($p);
        if (!$c) continue;
        foreach ($gap_patterns as $pat) {
            if (strpos($c, $pat) !== false) {
                $hardcoded_gaps[] = ["file" => basename($p), "pattern" => $pat];
            }
        }
    }
    
    if (count($hardcoded_gaps) > 0) {
        $issues[] = [
            "type" => "hardcoded_gaps_vs_reality",
            "reality" => $real_gaps,
            "stubs_created" => $stubs_count,
            "hardcoded_instances" => $hardcoded_gaps
        ];
    }
    
    // Check 2: mega aggregator says X, training UI says Y
    $mega = http_json("http://127.0.0.1/api/wevia-mega-agents.php?action=counts");
    $orch = http_json("http://127.0.0.1/api/wevia-orchestration-v75.php?action=summary");
    
    // Check 3: Registry tools count drift
    $reg = safe_json("/var/www/html/api/wevia-tool-registry.json");
    $reg_count = count($reg["tools"] ?? $reg ?? []);
    
    // Check 4: Test layer freshness
    $layers = ["nonreg", "nonreg-reg67", "nonreg-reg68", "nonreg-reg69", "nonreg-reg70", "nonreg-reg71", "v74-e2e", "v75-deep-e2e", "v76-chrome-e2e"];
    $test_coherence = [];
    foreach ($layers as $l) {
        $f = "/var/www/html/api/" . $l . "-latest.json";
        if (file_exists($f)) {
            $d = json_decode(file_get_contents($f), true);
            $test_coherence[$l] = [
                "pass" => $d["pass"] ?? 0,
                "total" => $d["total"] ?? 0,
                "score" => $d["score"] ?? 0,
                "age_hours" => round((time() - filemtime($f)) / 3600, 1)
            ];
            if (($d["score"] ?? 0) < 100) {
                $issues[] = [
                    "type" => "test_layer_regression",
                    "layer" => $l,
                    "score" => $d["score"],
                    "fails" => $d["fail"] ?? 0
                ];
            }
            if (((time() - filemtime($f)) / 3600) > 72) {
                $issues[] = [
                    "type" => "test_layer_stale",
                    "layer" => $l,
                    "age_hours" => round((time() - filemtime($f)) / 3600, 1)
                ];
            }
        }
    }
    
    // Check 5: KPI cards showing 0 on tech platform
    $v64 = http_json("http://127.0.0.1/api/wevia-v64-departments-kpi.php");
    $depts_total = 0;
    $depts_zero_kpis = 0;
    if ($v64 && isset($v64["departments"])) {
        foreach ($v64["departments"] as $dept) {
            $depts_total++;
            $all_zero = true;
            if (isset($dept["kpis"])) {
                foreach ($dept["kpis"] as $k) {
                    if (($k["current"] ?? 0) != 0) { $all_zero = false; break; }
                }
            }
            if ($all_zero) $depts_zero_kpis++;
        }
    }
    if ($depts_zero_kpis > $depts_total * 0.3) {
        $issues[] = [
            "type" => "kpi_cards_mostly_zero",
            "depts_zero" => $depts_zero_kpis,
            "depts_total" => $depts_total,
            "pct" => round(100 * $depts_zero_kpis / max(1, $depts_total), 1)
        ];
    }
    
    echo json_encode([
        "ok" => true,
        "version" => "V77-coherence",
        "ts" => date("c"),
        "total_issues" => count($issues),
        "issues" => $issues,
        "facts" => [
            "gaps_reality" => $real_gaps,
            "stubs_created" => $stubs_count,
            "registry_tools" => $reg_count,
            "agents_structured" => $mega["total_aggregated"] ?? null,
            "agents_declared" => $mega["manifest_total_live"] ?? null,
            "depts_total" => $depts_total,
            "depts_with_zero_kpis" => $depts_zero_kpis
        ],
        "test_layers" => $test_coherence
    ], JSON_PRETTY_PRINT);
    exit;
}

if ($action === "fix_gaps_ui") {
    // Fix all hardcoded "47 gaps" and "54 gaps" in HTML files to match reality
    $agent_factory = http_json("http://127.0.0.1/api/wevia-agent-factory.php?action=count");
    $real = $agent_factory["already_created"] ?? 0;
    
    $patched = [];
    foreach (glob("/var/www/html/*.html") as $p) {
        $c = @file_get_contents($p);
        if (!$c) continue;
        $orig = $c;
        $c = str_replace("47 gaps", $real . " gaps", $c);
        $c = str_replace("54 gaps", $real . " gaps", $c);
        if ($c !== $orig) {
            if (@file_put_contents($p, $c) !== false) {
                $patched[] = basename($p);
            }
        }
    }
    echo json_encode(["ok" => true, "patched" => $patched, "target" => $real], JSON_PRETTY_PRINT);
    exit;
}

if ($action === "scan_kpi_zeros") {
    // Scan all KPI cards showing 0 and categorize by need
    $v64 = http_json("http://127.0.0.1/api/wevia-v64-departments-kpi.php");
    $zeros = [];
    if ($v64 && isset($v64["departments"])) {
        foreach ($v64["departments"] as $dept) {
            foreach (($dept["kpis"] ?? []) as $kpi) {
                if (($kpi["current"] ?? 0) == 0 && ($kpi["target"] ?? 0) > 0) {
                    $zeros[] = [
                        "dept" => $dept["label"] ?? $dept["id"] ?? "?",
                        "kpi" => $kpi["label"] ?? "?",
                        "target" => $kpi["target"] ?? "?",
                        "unit" => $kpi["unit"] ?? "?",
                        "gap_agent" => $kpi["gap_agent"] ?? null
                    ];
                }
            }
        }
    }
    echo json_encode([
        "ok" => true,
        "total_zero_kpis" => count($zeros),
        "zeros" => $zeros
    ], JSON_PRETTY_PRINT);
    exit;
}

echo json_encode(["ok" => false, "error" => "unknown action", "valid" => ["check", "fix_gaps_ui", "scan_kpi_zeros"]]);