first commit

mock/plugin.ts

@@ -0,0 +1,52 @@
+import type { Plugin } from 'vite'
+import { mockRules, type MockContext } from './index'
+
+const MOCK_PREFIX = '/api/v1'
+
+function readBody(req: NodeJS.ReadableStream): Promise<string> {
+  return new Promise((resolve) => {
+    let raw = ''
+    req.on('data', (chunk) => (raw += chunk))
+    req.on('end', () => resolve(raw))
+  })
+}
+
+/**
+ * 本地 mock 中间件：仅在 dev 且 VITE_USE_MOCK=true 时拦截 /api/v1 请求。
+ * 不引入三方 mock 依赖，避免污染生产依赖树。
+ */
+export function mockPlugin(enabled = true): Plugin {
+  return {
+    name: 'portal-mock',
+    apply: 'serve',
+    configureServer(server) {
+      if (!enabled) return
+      server.middlewares.use((req, res, next) => {
+        if (!req.url?.startsWith(MOCK_PREFIX)) return next()
+
+        const requestUrl = new URL(req.url, 'http://localhost')
+        void (async () => {
+          const raw = req.method === 'GET' ? '' : await readBody(req)
+          const rule = mockRules.find(
+            (item) =>
+              item.method === (req.method ?? 'GET').toUpperCase() &&
+              item.pattern.test(requestUrl.pathname),
+          )
+
+          if (!rule) return next()
+
+          const matched = requestUrl.pathname.match(rule.pattern)
+          const ctx: MockContext = {
+            url: requestUrl.pathname,
+            params: matched ? matched.slice(1) : [],
+            query: Object.fromEntries(requestUrl.searchParams.entries()),
+            body: raw ? JSON.parse(raw) : {},
+          }
+
+          res.setHeader('Content-Type', 'application/json;charset=utf-8')
+          res.end(JSON.stringify({ code: '00000', data: rule.handler(ctx) ?? null, msg: 'success' }))
+        })()
+      })
+    },
+  }
+}