<?php
header('Content-Type: application/json');
require_once __DIR__ . '/../db/config.php';

// List of supported coins with base prices
$coins = [
    'BTC' => ['name' => 'Bitcoin', 'price' => 43250.50, 'change' => 2.45, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/btc.png'],
    'ETH' => ['name' => 'Ethereum', 'price' => 2345.20, 'change' => 1.15, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/eth.png'],
    'SOL' => ['name' => 'Solana', 'price' => 102.45, 'change' => 8.60, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/sol.png'],
    'OKB' => ['name' => 'OKB', 'price' => 54.12, 'change' => 0.15, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/okb.png'],
    'LINK' => ['name' => 'Chainlink', 'price' => 18.40, 'change' => 3.20, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/link.png'],
    'DOT' => ['name' => 'Polkadot', 'price' => 7.25, 'change' => -1.50, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/dot.png'],
    'ADA' => ['name' => 'Cardano', 'price' => 0.58, 'change' => 2.10, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/ada.png'],
    'DOGE' => ['name' => 'Dogecoin', 'price' => 0.082, 'change' => -0.50, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/doge.png'],
    'XRP' => ['name' => 'XRP', 'price' => 0.52, 'change' => 0.25, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/xrp.png'],
    'AVAX' => ['name' => 'Avalanche', 'price' => 35.60, 'change' => 4.10, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/avax.png'],
    'MATIC' => ['name' => 'Polygon', 'price' => 0.82, 'change' => -1.20, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/matic.png'],
    'TRX' => ['name' => 'TRON', 'price' => 0.12, 'change' => 0.80, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/trx.png'],
    'LTC' => ['name' => 'Litecoin', 'price' => 68.45, 'change' => 1.20, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/ltc.png'],
    'BCH' => ['name' => 'Bitcoin Cash', 'price' => 245.30, 'change' => -0.85, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/bch.png'],
    'UNI' => ['name' => 'Uniswap', 'price' => 6.12, 'change' => 5.40, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/uni.png'],
    'FIL' => ['name' => 'Filecoin', 'price' => 5.25, 'change' => 2.15, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/fil.png'],
    'APT' => ['name' => 'Aptos', 'price' => 9.40, 'change' => 12.30, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/apt.png'],
    'ARB' => ['name' => 'Arbitrum', 'price' => 1.85, 'change' => 3.10, 'icon' => 'https://static.okx.com/cdn/oksupport/asset/currency/icon/arb.png'],
];

// Seed for consistent pseudo-randomness based on time
srand(floor(time() / 10));

// Check for admin price manipulation
try {
    $stmt = db()->prepare("SELECT config_key, config_value FROM system_config WHERE config_key LIKE 'price_%'");
    $stmt->execute();
    $manipulations = $stmt->fetchAll(PDO::FETCH_KEY_PAIR);
    
    foreach ($coins as $symbol => &$data) {
        $key = 'price_' . $symbol;
        if (isset($manipulations[$key])) {
            $data['price'] = (float)$manipulations[$key];
        } else {
            // Natural fluctuation based on time to look "live"
            $fluctuation = (sin(time() / 60) * 0.001) + 1;
            $data['price'] *= $fluctuation;
            // Add a small random noise
            $data['price'] += (rand(-100, 100) / 1000) * ($data['price'] * 0.001);
        }
    }
} catch (Exception $e) {}

echo json_encode(['success' => true, 'data' => $coins]);