// vite.config.ts
import { defineConfig } from 'vite';
import vercel from 'vite-plugin-vercel';

export default defineConfig({
  plugins: [vercel()],
  vercel: {
    // optional configuration options, see "Advanced usage" below for details
  },
});

// file: _api/endpoint.ts

// Should run on edge runtime
export const edge = true;

// Always add those header to this endpoint
export const headers = {
  'Some-Header': 'some value',
};

// Stream the response
export const streaming = true;

// Enable Incremental Static Regeneration for this endpoint
export const isr = {
  expiration: 30,
};

export default async function handler() {
  return new Response('Edge Function: OK', {
    status: 200,
  });
}

// /pages/product/+config.ts

import Page from './Page';
import type { Config } from 'vike/types';

// Customize ISR config for this page
export default {
  isr: { expiration: 15 },
} satisfies Config;

// /renderer/+config.ts

import config from '@vite-plugin-vercel/vike/config';
import type { Config } from 'vike/types';

export default {
  extends: config,
} satisfies Config;

// vite.config.ts
import { defineConfig } from 'vite';
import vercel from 'vite-plugin-vercel';

export default defineConfig({
  plugins: [vercel()],
  vercel: {
    // All the followings optional

    /**
     * How long Functions should be allowed to run for every request, in seconds.
     * If left empty, default value for your plan will be used.
     */
    defaultMaxDuration: 30,
    /**
     * Enable streaming responses by default for all Serverless Functions
     */
    defaultSupportsResponseStreaming: true,
    /**
     * Default expiration time (in seconds) for prerender functions.
     * Defaults to 86400 seconds (24h).
     */
    expiration: 86400,
    /**
     * Also known as Server Side Generation, or SSG.
     * If present, this function is responsible to create static files in `.vercel/output/static`.
     * Defaults to `false`, which disables prerendering.
     */
    prerender(resolvedConfig) {
      // Check `/packages/vike/vike.ts` `prerender` for an example
    },
    /**
     * See https://vercel.com/docs/projects/project-configuration#rewrites
     */
    rewrites: [{ source: '/about', destination: '/about-our-company.html' }],
    /**
     * See https://vercel.com/docs/projects/project-configuration#redirects
     */
    redirects: [
      { source: '/me', destination: '/profile.html', permanent: false },
    ],
    /**
     * See https://vercel.com/docs/projects/project-configuration#cleanurls
     */
    cleanUrls: true,
    /**
     * See https://vercel.com/docs/projects/project-configuration#trailingslash
     */
    trailingSlash: true,
    /**
     * By default, all `api/*` and `_api/*` endpoints are compiled under `.vercel/output/functions/api/*.func`.
     * If others serverless functions need to be compiled under `.vercel/output/functions`, they should be added here.
     * For instance, a framework can leverage this to have a generic ssr endpoint
     * without requiring the user to write any code.
     */
    additionalEndpoints: [
      {
        // can also be an Object representing an esbuild StdinOptions
        source: '/path/to/file.ts',
        // URL path of the handler, will be generated to `.vercel/output/functions/api/file.func/index.js`
        destination: '/api/file',
      },
    ],
    /**
     * Advanced configuration to override .vercel/output/config.json
     * See https://vercel.com/docs/build-output-api/v3/configuration#configuration
     */
    config: {
      // routes?: Route[];
      // images?: ImagesConfig;
      // wildcard?: WildcardConfig;
      // overrides?: OverrideConfig;
      // cache?: string[];
      // crons?: CronsConfig;
    },
    /**
     * ISR and SSG pages are mutually exclusive. If a page is found in both, ISR prevails.
     * Keys are path relative to .vercel/output/functions directory, either without extension,
     * or with `.prerender-config.json` extension.
     * If you have multiple isr configurations pointing to the same underlying function, you can leverage the `symlink`
     * property.
     *
     * Can be an object or a function returning an object (or a Promise of an object).
     *
     * Check `/packages/vike/vike.ts` `vitePluginVercelVpsIsrPlugin` for advanced usage.
     */
    isr: {
      // `symlink: 'ssr_'` means that a function is available under `.vercel/output/functions/ssr_.func`
      '/pages/a': { expiration: 15, symlink: 'ssr_', route: '^/a/.*$' },
      '/pages/b/c': { expiration: 15, symlink: 'ssr_', route: '^/b/c/.*$' },
      '/pages/d': { expiration: 15, symlink: 'ssr_', route: '^/d$' },
      '/pages/e': { expiration: 25 },
    },
    /**
     * Defaults to `.vercel/output`. Mostly useful for testing purpose
     */
    outDir: '.vercel/output',
  },
});