<?php
header('Content-Type: application/json');
$R = ['ts' => date('c'), 'results' => []];

try {
    $pdo = new PDO('pgsql:host=10.1.0.3;port=5432;dbname=adx_system', 'admin', 'admin123');
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    
    // 3 tables à tester
    $tables = ['admin.inbox_replies', 'admin.weval_messages', 'admin.wevia_messages', 'admin.hamid_messages'];
    
    foreach ($tables as $t) {
        try {
            // Count
            $cnt = $pdo->query("SELECT COUNT(*) FROM $t")->fetchColumn();
            
            // Columns
            $cols_stmt = $pdo->query("SELECT column_name FROM information_schema.columns WHERE table_schema='admin' AND table_name='" . substr($t, strpos($t,'.')+1) . "' LIMIT 15");
            $cols = $cols_stmt->fetchAll(PDO::FETCH_COLUMN);
            
            // Sample row
            $sample = $pdo->query("SELECT * FROM $t LIMIT 1")->fetch(PDO::FETCH_ASSOC);
            
            $R['results'][$t] = [
                'count' => $cnt,
                'columns' => $cols,
                'sample_keys' => $sample ? array_keys($sample) : []
            ];
        } catch (Exception $e) {
            $R['results'][$t] = ['error' => $e->getMessage()];
        }
    }
    
    // Search Kaouther in all 3
    foreach (['admin.inbox_replies', 'admin.weval_messages', 'admin.wevia_messages'] as $t) {
        try {
            // Try different column names
            foreach (['sender', 'from_email', 'from_addr', 'email_from', 'from', 'sender_email'] as $col) {
                try {
                    $stmt = $pdo->prepare("SELECT * FROM $t WHERE $col ILIKE :e OR subject ILIKE :s ORDER BY received_at DESC LIMIT 3");
                    $stmt->execute([':e' => '%najar%', ':s' => '%HCP%']);
                    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
                    if ($rows) {
                        $R['found_in_' . $t] = ['via_col' => $col, 'rows' => $rows];
                        break;
                    }
                } catch (Exception $e) { /* col doesn't exist */ }
            }
        } catch (Exception $e) { /* table issue */ }
    }
    
} catch (Exception $e) {
    $R['error'] = $e->getMessage();
}

echo json_encode($R, JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE);