feat: make repo an installable node package

blocksystem/vite.config.ts

@@ -1,18 +1,39 @@
 import { fileURLToPath, URL } from 'node:url'
 
-import { defineConfig } from 'vite'
+import { defineConfig, type PluginOption } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import vueDevTools from 'vite-plugin-vue-devtools'
 
 // https://vite.dev/config/
-export default defineConfig({
-  plugins: [
-    vue(),
-    vueDevTools(),
-  ],
-  resolve: {
-    alias: {
-      '@': fileURLToPath(new URL('./src', import.meta.url))
+export default defineConfig(({ command }) => {
+  const plugins: PluginOption[] = [vue()]
+
+  if (command === 'serve') {
+    plugins.push(vueDevTools())
+  }
+
+  return {
+    plugins,
+    resolve: {
+      alias: {
+        '@': fileURLToPath(new URL('./src', import.meta.url))
+      },
     },
-  },
+    build: {
+      lib: {
+        entry: fileURLToPath(new URL('./src/index.ts', import.meta.url)),
+        name: 'RenderMathProblems',
+        fileName: 'render-mathproblems',
+      },
+      rollupOptions: {
+        external: ['vue'],
+        output: {
+          exports: 'named',
+          globals: {
+            vue: 'Vue',
+          },
+        },
+      },
+    },
+  }
 })