vite.config.mts

import { defineConfig } from "vite";

export default defineConfig(({ mode }) => {
    if (mode === "lib") {
        // Build for npm package (ESM/CJS)
        return {
            build: {
                lib: {
                    entry: "src/index.ts",
                    fileName: (format) => `index.${format === "es" ? "mjs" : "cjs"}`,
                    formats: ["es", "cjs"],
                },
                emptyOutDir: false,
                outDir: "dist",
                minify: false,
            },
        };
    }

    // Default: Build for browser (IIFE), output to root for GitHub CDN
    return {
        build: {
            lib: {
                entry: "src/browser.ts",
                name: "ReadTime",
                fileName: () => "readtime.js",
                formats: ["iife"],
            },
            emptyOutDir: false, // CRITICAL: Do not delete other files in root!
            outDir: ".",        // Output to project root
            minify: false,      // Un-minified as requested
        },
    };
});