import adapter from "@sveltejs/adapter-static";
import { sveltekit } from "@sveltejs/kit/vite";
import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
import tailwindcss from "@tailwindcss/vite";
import { defineConfig } from "vite";

const proxyTarget = process.env.API_PROXY_TARGET ?? "http://127.0.0.1:8080";
const allowedHosts = process.env.ALLOWED_HOSTS
  ? process.env.ALLOWED_HOSTS.split(",")
  : undefined;

export default defineConfig({
  css: {
    preprocessorOptions: {
      scss: {
        loadPaths: ["src/lib/styles"],
      },
    },
  },
  plugins: [
    tailwindcss(),
    sveltekit({
      adapter: adapter({
        assets: "build",
        fallback: "index.html",
        pages: "build",
        precompress: false,
        strict: false,
      }),
      compilerOptions: {
        // Force runes mode for the project, except for libraries. Can be removed in svelte 6.
        runes: ({ filename }) =>
          // biome-ignore lint/performance/useTopLevelRegex: svelte default
          filename.split(/[/\\]/).includes("node_modules") ? undefined : true,
      },
      preprocess: [vitePreprocess()],
    }),
  ],
  server: {
    allowedHosts,
    proxy: {
      "/api": { changeOrigin: true, target: proxyTarget },
      "/f": { changeOrigin: true, target: proxyTarget },
      "/mcp": { changeOrigin: true, target: proxyTarget },
    },
  },
});