126 lines
4.1 KiB
HTML
126 lines
4.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Buy - ZYM's Book Store</title>
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<link rel="stylesheet" href="basic.css">
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<style>
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.buy-box {
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width: 300px;
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padding: 20px;
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border: 1px solid #ccc;
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background-color: #fff;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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input {
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width: 100%;
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padding: 10px;
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margin-bottom: 10px;
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box-sizing: border-box;
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}
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button {
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width: 100%;
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padding: 10px;
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background-color: #4caf50;
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color: #fff;
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border: none;
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cursor: pointer;
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}
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.info-box {
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width: 300px;
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padding: 20px;
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border: 1px solid #ccc;
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background-color: #fff;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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position: absolute;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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</style>
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</head>
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<body>
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<header>
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<h1>ZYM's Book Store</h1>
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<div class="user-bar">
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<span>Welcome, <span id="username">[Guest]</span></span>
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<div class="action-button-container" onmouseover="showDropdown()" onmouseout="hideDropdown()">
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<div class="action-button">Actions</div>
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<div class="dropdown">
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<div class="dropdown-content">
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<a href="/login">Login</a>
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<a href="#" onclick="(async () => { await Request('logout'); await UpdateUserInfo(); location.reload();})(); return false;">Logout</a>
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<a href="/register">Register</a>
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<a href="/passwd">Change Password</a>
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<a href="/admin">Admin Panel</a>
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</div>
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</div>
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</div>
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</div>
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</header>
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<div class="main-content">
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<nav>
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<a href="/">Home Page</a>
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<a href="/show">Search Books</a>
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<a href="/buy">Purchase Books</a>
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</nav>
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<div class="content">
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<div class="buy-box">
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<form onsubmit="console.log('trying passwd'); TryBuy(); return false;">
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<input id="isbn" type="text" placeholder="ISBN" required>
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<input id="quantity" type="text" placeholder="Quantity" required>
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<button type="submit">Buy</button>
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</form>
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</div>
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</div>
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</div>
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<script src="/socket.io/socket.io.js"></script>
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<script src="/communication.js"></script>
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<script src="/basic.js"></script>
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<script>
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document.addEventListener('SessionReady', async () => {
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await UpdateUserInfo();
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if((await GetMyPrivilege())<1)
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{
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document.querySelector('.buy-box').style.display = 'none';
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document.querySelector('.content').innerHTML = '<div class="info-box"><h2>Please log in first.</h2><p>Redirecting to home page in 3 seconds...</p></div>';
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setTimeout(function(){window.location.href="/";},3000);
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}
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});
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function isFloat(str) {
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// 使用parseFloat尝试将字符串转换为浮点数
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var floatValue = parseFloat(str);
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// 使用isNaN检查是否成功转换，并确保不是Infinity或NaN
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return !isNaN(floatValue) && isFinite(floatValue);
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}
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async function TryBuy()
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{
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console.log("TryBuy called");
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var isbn = document.getElementById("isbn").value;
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var quantity = document.getElementById("quantity").value;
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var ret=await Request("buy "+isbn+" "+quantity);
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if(isFloat(ret))
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{
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document.getElementById("isbn").value="";
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document.getElementById("quantity").value="";
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document.querySelector('.buy-box').style.display = 'none';
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document.querySelector('.content').innerHTML = '<div class="info-box"><h3>Successfully bought book with ISBN='+isbn+'</h3><h3>Used '+ret+'RMB</h3><p>Auto refreshing page in 10 seconds...</p></div>';
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setTimeout(function(){location.reload();},10000);
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}
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else alert("Invalid bookname or quantity");
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}
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</script>
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<script src="/sessioninit.js"></script>
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</body>
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</html> |