<?php
session_start();

if (!isset($_SESSION['user_id'])) {
    http_response_code(401);
    exit();
}

require_once 'db_connection.php';

header('Content-Type: application/json');

if (!isset($_GET['id'])) {
    echo json_encode(['error' => 'Buyer ID is required']);
    exit();
}

$buyerId = intval($_GET['id']);

try {
    $stmt = $conn->prepare("SELECT rate_tilapia, rate_small_fish, rate_big_fish, delivery_rate, harvesting_fee_tilapia, harvesting_fee_small_fish, harvesting_fee_big_fish FROM buyers WHERE id = ?");
    $stmt->bind_param("i", $buyerId);
    $stmt->execute();
    $result = $stmt->get_result();
    $buyer = $result->fetch_assoc();
    $stmt->close();
    
    if ($buyer) {
        echo json_encode($buyer);
    } else {
        echo json_encode(['error' => 'Buyer not found']);
    }
} catch (Exception $e) {
    echo json_encode(['error' => 'Database error']);
    error_log("Get buyer rates error: " . $e->getMessage());
}

$conn->close();
?>