import { defineConfig } from "vite";
import react from "@vitejs/plugin-react-swc";
import tailwindcss from "@tailwindcss/vite";
import path from "path";
import fs from "fs";
import { tsImport } from "tsx/esm/api";
import type { IssueStatusConfig } from "./src/api/types";

export default defineConfig(async () => {
  const packageRoot = import.meta.dirname;

  const configPath = path.resolve(process.cwd(), "issue-status.config.ts");

  const config = (await tsImport(configPath, import.meta.dirname))
    .default as IssueStatusConfig;

  if (!fs.existsSync(configPath)) {
    throw new Error("issue-status.config.ts not found.");
  }

  return {
    root: packageRoot,
    base: "./",
    publicDir: path.resolve(process.cwd(), "public"),
    plugins: [
      react(),
      tailwindcss(),
      {
        name: "html-transform",
        transformIndexHtml(html: string) {
          return html
            .replace(
              /<title>Vite \+ React \+ TS<\/title>/,
              `<title>${config.name}</title>`
            )
            .replace(
              /<link rel="icon" href="\/vite.svg" \/>/,
              `<link rel="icon" href="/vite.svg" />`
            )
            .replace(
              /<meta name="description" content="My status page description" \/>/,
              `<meta name="description" content="${config.description}" />`
            );
        },
      },
    ],
    define: {
      __CONFIG_PATH__: JSON.stringify(configPath),
    },
    server: { fs: { allow: [packageRoot, process.cwd()] } },
    build: {
      outDir: path.resolve(process.cwd(), "dist"),
      emptyOutDir: true,
      target: "esnext",
    },
  };
});