<?php
namespace App\Controllers\Admin;

use App\Core\AdminBaseController;
use Db\Database;

class VirtualAccountController extends AdminBaseController {
    private $db;
    public function __construct(Database $db) { $this->db = $db; }

    public function index() {
        $this->checkLogin(); $this->checkAdmin();
        $virtuals = $this->db->select('users', '*', ['is_virtual' => 1, 'ORDER' => ['id' => 'DESC']]);
        $this->render('Admin/virtual_accounts.php', compact('virtuals'));
    }

    public function create() {
        $this->checkLogin(); $this->checkAdmin();
        $data = json_decode(file_get_contents('php://input'), true);
        $username = trim($data['username'] ?? '');
        if (empty($username)) { $this->json(['status'=>'error','message'=>'Username required']); return; }
        if ($this->db->get('users', 'id', ['username' => $username])) {
            $this->json(['status'=>'error','message'=>'Username exists']); return;
        }

        $this->db->insert('users', [
            'username' => $username,
            'password' => password_hash($data['password'] ?? '123456', PASSWORD_DEFAULT),
            'email' => $username . '@virtual.local',
            'role' => 'user', 'status' => 1, 'is_virtual' => 1,
            'email_verified' => 1,
            'balance' => floatval($data['balance'] ?? 100000),
            'created_at' => date('Y-m-d H:i:s'),
        ]);
        $this->json(['status' => 'success']);
    }

    public function adjustBalance() {
        $this->checkLogin(); $this->checkAdmin();
        $data = json_decode(file_get_contents('php://input'), true);
        $id = (int)($data['id'] ?? 0);
        $amount = floatval($data['amount'] ?? 0);
        $user = $this->db->get('users', '*', ['id' => $id, 'is_virtual' => 1]);
        if (!$user) { $this->json(['status'=>'error','message'=>'Not found']); return; }
        $new = (float)$user['balance'] + $amount;
        $this->db->update('users', ['balance' => $new], ['id' => $id]);
        $this->json(['status' => 'success', 'new_balance' => $new]);
    }

    public function delete($id) {
        $this->checkLogin(); $this->checkAdmin();
        $this->db->delete('users', ['id' => (int)$id, 'is_virtual' => 1]);
        $this->json(['status' => 'success']);
    }

    private function json($data) { header('Content-Type: application/json'); echo json_encode($data); }
}