<?php
header("Content-Type: application/json");
header("Access-Control-Allow-Origin: *");
$action=$_GET["action"]??"status";
try{
$db=new PDO("pgsql:host=10.1.0.3;port=5432;dbname=adx_system","admin","admin123",[PDO::ATTR_ERRMODE=>PDO::ERRMODE_EXCEPTION,PDO::ATTR_DEFAULT_FETCH_MODE=>PDO::FETCH_ASSOC]);
$db->exec("SET search_path TO admin,public");
}catch(Exception $e){echo json_encode(["ok"=>false,"error"=>"db"]);exit;}

if($action==="status"){
  $t=(int)$db->query("SELECT COUNT(*) FROM office_accounts")->fetchColumn();
  $a=(int)$db->query("SELECT COUNT(*) FROM office_accounts WHERE LOWER(status)='active'")->fetchColumn();
  $w=(int)$db->query("SELECT COUNT(*) FROM office_accounts WHERE LOWER(status)='warming'")->fetchColumn();
  $s=(int)$db->query("SELECT COUNT(*) FROM office_accounts WHERE LOWER(status) IN ('suspended','blocked')")->fetchColumn();
  $snd=(int)$db->query("SELECT COUNT(*) FROM graph_send_log")->fetchColumn();
  $exc=(int)$db->query("SELECT COUNT(*) FROM office_accounts WHERE exchange_configured=true")->fetchColumn();
  $ten=(int)$db->query("SELECT COUNT(*) FROM graph_tenants")->fetchColumn();
  echo json_encode(["ok"=>true,"total"=>$t,"active"=>$a,"warming_count"=>$w,"warming"=>$w,"suspended"=>$s,"sends"=>$snd,"exchange"=>$exc,"tenants"=>$ten,"accounts_warming"=>$w,"health"=>$t>0?round($a/$t*100)."%":"0%"]);
}elseif($action==="accounts"){
  $p=max(1,(int)($_GET["p"]??1));$pp=50;$off=($p-1)*$pp;
  $q=$_GET["q"]??"";
  $wh=$q?"WHERE (name ILIKE '%".addslashes($q)."%' OR tenant_domain ILIKE '%".addslashes($q)."%')":"";
  $rows=$db->query("SELECT id,name,tenant_domain,LOWER(status) as status,current_step,exchange_configured,domains_count FROM office_accounts $wh ORDER BY id DESC LIMIT $pp OFFSET $off")->fetchAll();
  $cnt=(int)$db->query("SELECT COUNT(*) FROM office_accounts $wh")->fetchColumn();
  echo json_encode(["ok"=>true,"accounts"=>$rows,"total"=>$cnt,"page"=>$p,"pages"=>max(1,ceil($cnt/$pp))]);
}elseif($action==="tenants"){
  $rows=$db->query("SELECT tenant_domain,status,users_count,sends_today,daily_limit FROM graph_tenants ORDER BY users_count DESC LIMIT 20")->fetchAll();
  echo json_encode(["ok"=>true,"tenants"=>$rows]);
}else{
  echo json_encode(["ok"=>true,"actions"=>["status","accounts","tenants"]]);
}