feat(docs): add interactive demo components for technical appendices

Add placeholder Vue components for visualizing technical concepts across multiple domains including frontend routing, browser rendering, cache design, queue design, database principles, API design, cloud services, and backend evolution. These components provide interactive educational content for the documentation.

Update documentation structure to include new appendix sections and enhance existing content with visual components. Remove unused 'codex' dependency from package.json.
This commit is contained in:
sanbuphy
2026-02-06 03:34:50 +08:00
parent e8bba6f7c0
commit 7c70c37072
171 changed files with 69830 additions and 6689 deletions
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<template>
<div class="physical-server-demo">
<div class="demo-header">
<h4>🖥 物理服务器时代演示</h4>
<p>点击"发送请求"观察早期 CGI 服务器的处理瓶颈</p>
</div>
<div class="demo-stage">
<div class="client-zone">
<div class="zone-title">👤 用户浏览器</div>
<div class="request-queue">
<div
v-for="(req, idx) in pendingRequests"
:key="req.id"
class="request-card"
:style="{ animationDelay: idx * 0.1 + 's' }"
>
<span class="req-method">{{ req.method }}</span>
<span class="req-path">{{ req.path }}</span>
</div>
</div>
<button
class="send-btn"
:disabled="isProcessing"
@click="sendRequest"
>
{{ isProcessing ? '处理中...' : '🚀 发起请求' }}
</button>
</div>
<div class="connection-zone">
<div class="network-line" :class="{ busy: isProcessing }">
<div class="packets">
<div
v-for="pkt in packets"
:key="pkt.id"
class="packet"
:class="pkt.type"
:style="{ top: pkt.top + 'px' }"
>
{{ pkt.type === 'req' ? '📤' : '📥' }}
</div>
</div>
</div>
<div class="latency-display" v-if="currentLatency > 0">
{{ currentLatency }}ms
</div>
</div>
<div class="server-zone">
<div class="zone-title">🖥 CGI 服务器</div>
<div class="server-status">
<div
class="status-indicator"
:class="{ processing: isProcessing }"
>
<span class="status-dot"></span>
<span class="status-text">{{ serverStatus }}</span>
</div>
<div class="cpu-usage" v-if="isProcessing">
<div class="cpu-bar">
<div
class="cpu-fill"
:style="{ width: cpuUsage + '%' }"
></div>
</div>
<span class="cpu-text">CPU: {{ cpuUsage }}%</span>
</div>
</div>
<div class="process-queue">
<div
v-for="proc in processQueue"
:key="proc.id"
class="process-item"
>
<span class="proc-name">{{ proc.name }}</span>
<div class="proc-progress">
<div
class="proc-bar"
:style="{ width: proc.progress + '%' }"
></div>
</div>
</div>
</div>
</div>
</div>
<div class="demo-explanation">
<h5>💡 早期的痛点在哪里</h5>
<ul>
<li>
<strong>进程启动开销</strong>每个请求都要启动新的 CGI
进程就像每来一个客人都要重新搭一个厨房
</li>
<li>
<strong>资源无法复用</strong>数据库连接每次都要重新建立CPU
频繁在进程间切换
</li>
<li>
<strong>扩展困难</strong>只能买更强的单机垂直扩展无法通过增加机器分担压力
</li>
</ul>
<p class="demo-conclusion">
这就是<strong>物理服务器 + CGI</strong>时代的核心问题<span
class="highlight"
>进程级隔离带来了稳定性但也带来了巨大的性能开销</span
>
</p>
</div>
</div>
</template>
<script setup>
import { ref, computed } from 'vue'
const isProcessing = ref(false)
const currentLatency = ref(0)
const cpuUsage = ref(0)
const packets = ref([])
const pendingRequests = ref([])
const processQueue = ref([])
const requestCounter = ref(0)
const packetCounter = ref(0)
const serverStatus = computed(() => {
if (isProcessing.value) return '处理中...'
return '等待请求'
})
const sendRequest = async () => {
if (isProcessing.value) return
isProcessing.value = true
requestCounter.value++
const requestId = requestCounter.value
// Add request to queue
pendingRequests.value.push({
id: requestId,
method: 'GET',
path: '/index.cgi'
})
// Simulate network latency
currentLatency.value = 0
const latencyInterval = setInterval(() => {
currentLatency.value += Math.floor(Math.random() * 50) + 20
}, 100)
// Simulate packet
const packetId = ++packetCounter.value
packets.value.push({
id: packetId,
type: 'req',
top: 20
})
// Add process to queue
processQueue.value.push({
id: requestId,
name: `CGI Process #${requestId}`,
progress: 0
})
// Simulate CPU usage fluctuation
const cpuInterval = setInterval(() => {
cpuUsage.value = Math.min(100, cpuUsage.value + Math.random() * 20 + 10)
processQueue.value.forEach(p => {
p.progress = Math.min(100, p.progress + Math.random() * 15 + 5)
})
}, 100)
// Simulate processing time
await new Promise(resolve => setTimeout(resolve, 2000))
clearInterval(latencyInterval)
clearInterval(cpuInterval)
// Cleanup
pendingRequests.value = pendingRequests.value.filter(r => r.id !== requestId)
packets.value = packets.value.filter(p => p.id !== packetId)
processQueue.value = processQueue.value.filter(p => p.id !== requestId)
cpuUsage.value = 0
currentLatency.value = 0
isProcessing.value = false
}
</script>
<style scoped>
.physical-server-demo {
border: 1px solid var(--vp-c-divider);
border-radius: 8px;
background: var(--vp-c-bg-soft);
padding: 1.5rem;
margin: 1rem 0;
}
.demo-header {
margin-bottom: 1.5rem;
}
.demo-header h4 {
margin: 0 0 0.5rem 0;
font-size: 1.1rem;
color: var(--vp-c-text-1);
}
.demo-header p {
margin: 0;
font-size: 0.9rem;
color: var(--vp-c-text-2);
}
.demo-stage {
display: grid;
grid-template-columns: 1fr auto 1fr;
gap: 1rem;
margin-bottom: 1.5rem;
}
.client-zone,
.server-zone {
background: var(--vp-c-bg);
border: 1px solid var(--vp-c-divider);
border-radius: 8px;
padding: 1rem;
}
.zone-title {
font-size: 0.85rem;
font-weight: 600;
color: var(--vp-c-brand);
margin-bottom: 0.75rem;
text-align: center;
}
.request-queue {
min-height: 60px;
background: var(--vp-c-bg-soft);
border-radius: 6px;
padding: 0.5rem;
margin-bottom: 0.75rem;
display: flex;
flex-direction: column;
gap: 0.25rem;
}
.request-card {
background: var(--vp-c-brand);
color: white;
border-radius: 4px;
padding: 0.4rem 0.5rem;
display: flex;
align-items: center;
gap: 0.5rem;
font-size: 0.75rem;
}
.req-method {
background: rgba(255, 255, 255, 0.2);
padding: 0.1rem 0.3rem;
border-radius: 3px;
font-weight: 600;
}
.send-btn {
width: 100%;
background: var(--vp-c-brand);
color: white;
border: none;
border-radius: 6px;
padding: 0.6rem;
font-size: 0.85rem;
cursor: pointer;
transition: all 0.2s;
}
.send-btn:hover:not(:disabled) {
opacity: 0.9;
}
.send-btn:disabled {
opacity: 0.6;
cursor: not-allowed;
}
.connection-zone {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
min-width: 60px;
}
.network-line {
width: 3px;
height: 120px;
background: var(--vp-c-divider);
border-radius: 2px;
position: relative;
opacity: 0.5;
transition: opacity 0.3s;
}
.network-line.busy {
opacity: 1;
background: var(--vp-c-brand);
}
.latency-display {
margin-top: 0.5rem;
font-size: 0.75rem;
color: var(--vp-c-brand);
font-weight: 600;
}
.server-status {
margin-bottom: 0.75rem;
}
.status-indicator {
display: flex;
align-items: center;
gap: 0.5rem;
padding: 0.5rem;
background: var(--vp-c-bg-soft);
border-radius: 6px;
margin-bottom: 0.5rem;
}
.status-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--vp-c-success);
}
.status-indicator.processing .status-dot {
background: var(--vp-c-danger);
animation: blink 1s infinite;
}
@keyframes blink {
0%, 100% { opacity: 1; }
50% { opacity: 0.3; }
}
.status-text {
font-size: 0.8rem;
color: var(--vp-c-text-2);
}
.cpu-usage {
display: flex;
align-items: center;
gap: 0.5rem;
}
.cpu-bar {
flex: 1;
height: 6px;
background: var(--vp-c-bg-soft);
border-radius: 3px;
overflow: hidden;
}
.cpu-fill {
height: 100%;
background: var(--vp-c-danger);
border-radius: 3px;
transition: width 0.1s ease;
}
.cpu-text {
font-size: 0.7rem;
color: var(--vp-c-text-2);
min-width: 60px;
text-align: right;
}
.process-queue {
display: flex;
flex-direction: column;
gap: 0.4rem;
}
.process-item {
background: var(--vp-c-bg-soft);
border-radius: 6px;
padding: 0.5rem;
}
.proc-name {
display: block;
font-size: 0.7rem;
color: var(--vp-c-text-2);
margin-bottom: 0.3rem;
}
.proc-progress {
height: 4px;
background: var(--vp-c-bg);
border-radius: 2px;
overflow: hidden;
}
.proc-bar {
height: 100%;
background: var(--vp-c-brand);
border-radius: 2px;
transition: width 0.1s linear;
}
.demo-explanation {
margin-top: 1.5rem;
padding-top: 1.5rem;
border-top: 1px solid var(--vp-c-divider);
}
.demo-explanation h5 {
font-size: 1rem;
font-weight: 600;
color: var(--vp-c-text-1);
margin: 0 0 0.75rem 0;
}
.demo-explanation ul {
margin: 0 0 1rem 0;
padding-left: 1.25rem;
}
.demo-explanation li {
font-size: 0.9rem;
color: var(--vp-c-text-2);
line-height: 1.6;
margin-bottom: 0.4rem;
}
.demo-explanation li strong {
color: var(--vp-c-text-1);
}
.demo-conclusion {
font-size: 0.9rem;
color: var(--vp-c-text-2);
line-height: 1.6;
margin: 0;
padding: 0.75rem;
background: var(--vp-c-bg-soft);
border-radius: 6px;
}
.highlight {
color: var(--vp-c-brand);
font-weight: 600;
}
@media (max-width: 768px) {
.demo-stage {
grid-template-columns: 1fr;
gap: 1rem;
}
.connection-zone {
flex-direction: row;
height: 60px;
}
.network-line {
width: 100%;
height: 3px;
}
}
</style>