From 4a51b54095012beda1135a6ce8d1266d080c035d Mon Sep 17 00:00:00 2001
From: Julien Oculi <xdrz.jot.sr@gmail.com>
Date: Mon, 5 Feb 2024 17:04:54 +0100
Subject: [PATCH] ci: add recursivity to bundle css plugin

---
 plugins/css_bundler/src/builder.ts | 88 ++++++++++++++++++++----------
 1 file changed, 60 insertions(+), 28 deletions(-)

diff --git a/plugins/css_bundler/src/builder.ts b/plugins/css_bundler/src/builder.ts
index 9e09875..b7150d2 100644
--- a/plugins/css_bundler/src/builder.ts
+++ b/plugins/css_bundler/src/builder.ts
@@ -1,12 +1,13 @@
 import { join, parse, resolve, toFileUrl } from '$std/path/mod.ts'
 import { bundleAsync } from 'lightningcss'
-import { cssImports, hashFile, Logger } from './helpers.ts'
+import { cssImports, Logger, uInt8ArrayConcat } from './helpers.ts'
 
 export async function builder(
-	{ filename, dev, assetDir }: {
+	{ filename, dev, assetDir, remote }: {
 		filename: string
 		dev: boolean
 		assetDir: string
+		remote?: string
 	},
 ) {
 	const { code, map } = await bundleAsync({
@@ -14,43 +15,74 @@ export async function builder(
 		minify: true,
 		sourceMap: dev,
 		resolver: {
-			read(path) {
-				return Deno.readTextFile(path)
+			async read(pathOrUrl) {
+				if (pathOrUrl.startsWith('https%3A%2F%2F')) {
+					pathOrUrl = decodeURIComponent(pathOrUrl)
+				}
+				if (pathOrUrl.startsWith('https://')) {
+					//use cache for remote
+					if (cssImports.has(pathOrUrl)) {
+						Logger.info('using cache for', `${pathOrUrl}`)
+						const filepath = cssImports.get(pathOrUrl)!
+						return Deno.readTextFile(filepath)
+					}
+
+					//update cache for new remote
+					Logger.info('fetching and caching', `${pathOrUrl}`)
+					const response = await fetch(pathOrUrl)
+					const file = await response.arrayBuffer()
+					const filename = encodeURIComponent(pathOrUrl.toString())
+
+					const filepath = join(assetDir, `${filename}.css`)
+					await Deno.writeFile(filepath, new Uint8Array(file))
+
+					setTimeout(() => {}, 3_000)
+					const { code, map } = await builder({
+						filename: filepath,
+						dev,
+						assetDir,
+						remote: pathOrUrl,
+					})
+
+					if (map) {
+						const sourceMappingURL = new TextEncoder().encode(
+							`\n/*# sourceMappingURL=${filepath}.map.css */`,
+						)
+						await Deno.writeFile(
+							filepath,
+							uInt8ArrayConcat(code, sourceMappingURL),
+						)
+						await Deno.writeFile(`${filepath}.map.css`, map)
+					} else {
+						await Deno.writeFile(filepath, code)
+					}
+
+					cssImports.set(pathOrUrl, filepath)
+
+					return new TextDecoder().decode(file)
+				}
+				return Deno.readTextFile(pathOrUrl)
 			},
-			async resolve(specifier, from) {
+			resolve(specifier, from) {
+				if (remote) {
+					const url = new URL(specifier, remote)
+					Logger.info('resolve remote imports', url.toString())
+
+					return url.toString()
+				}
+
 				//resolve local files normally
 				if (!specifier.startsWith('https://') && !from.startsWith('https://')) {
 					Logger.info('resolve local file', specifier)
 					return resolve(parse(from).dir, specifier)
 				}
-				//use cache for remote
-				if (cssImports.has(`${from}/${specifier}`)) {
-					Logger.info('using cache for', `${from}/${specifier}`)
-					return cssImports.get(`${from}/${specifier}`)
-				}
-
-				//update cache for new remote
-				Logger.info('fetching and caching', `${from}/${specifier}`)
 
 				//construct asset url
 				const baseUrl = from.startsWith('https://') ? from : toFileUrl(from)
 				const url = new URL(specifier, baseUrl)
+				Logger.info('resolve remote file', url.toString())
 
-				//fetch asset
-				const response = await fetch(url)
-				const file = await response.arrayBuffer()
-				const filename = await hashFile(file)
-
-				//!TODO recursive bundle to cache all remote imports
-				// bundleAsync({ minify: true, sourceMap: true, '' })
-				// const { code, map } = transform({ minify: true, sourceMap: dev, code: new Uint8Array(file), filename: url.toString() })
-
-				// const { code, map } = await builder({ filename: url.toString(), assetDir, dev })
-
-				const filepath = join(assetDir, `${filename}.css`)
-				await Deno.writeFile(filepath, new Uint8Array(file))
-				cssImports.set(`${from}/${specifier}`, filepath)
-				return filepath
+				return url.toString()
 			},
 		},
 	})