From feb19371f43ea4cd7752f08a549d292f471d966f Mon Sep 17 00:00:00 2001
From: Brad Cornes <brad@parall.ax>
Date: Tue, 28 Apr 2020 00:06:47 +0100
Subject: [PATCH] vary @tailwind completions based on version

---
 packages/tailwindcss-class-names/src/index.js |  1 +
 .../package-lock.json                         |  6 ++++
 .../tailwindcss-language-server/package.json  |  1 +
 .../src/providers/completionProvider.ts       | 28 +++++++++++++------
 .../src/util/state.ts                         |  1 +
 5 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/packages/tailwindcss-class-names/src/index.js b/packages/tailwindcss-class-names/src/index.js
index e7a78ef..c87d271 100644
--- a/packages/tailwindcss-class-names/src/index.js
+++ b/packages/tailwindcss-class-names/src/index.js
@@ -93,6 +93,7 @@ export default async function getClassNames(
     const resolvedConfig = resolveConfig({ cwd, config })
 
     return {
+      version,
       configPath,
       config: resolvedConfig,
       separator: typeof userSeperator === 'undefined' ? ':' : userSeperator,
diff --git a/packages/tailwindcss-language-server/package-lock.json b/packages/tailwindcss-language-server/package-lock.json
index 2bf6cb9..280ac2e 100644
--- a/packages/tailwindcss-language-server/package-lock.json
+++ b/packages/tailwindcss-language-server/package-lock.json
@@ -151,6 +151,12 @@
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
       "dev": true
     },
+    "semver": {
+      "version": "7.3.2",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
+      "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==",
+      "dev": true
+    },
     "subarg": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/subarg/-/subarg-1.0.0.tgz",
diff --git a/packages/tailwindcss-language-server/package.json b/packages/tailwindcss-language-server/package.json
index 14590ad..dba232f 100644
--- a/packages/tailwindcss-language-server/package.json
+++ b/packages/tailwindcss-language-server/package.json
@@ -22,6 +22,7 @@
     "emmet-helper": "0.0.1",
     "glob-exec": "^0.1.1",
     "line-column": "^1.0.2",
+    "semver": "^7.3.2",
     "tailwindcss-class-names": "0.0.1",
     "typescript": "^3.8.3",
     "vscode-languageserver": "^5.2.1",
diff --git a/packages/tailwindcss-language-server/src/providers/completionProvider.ts b/packages/tailwindcss-language-server/src/providers/completionProvider.ts
index 3dccb9f..53a1238 100644
--- a/packages/tailwindcss-language-server/src/providers/completionProvider.ts
+++ b/packages/tailwindcss-language-server/src/providers/completionProvider.ts
@@ -21,6 +21,7 @@ import { isValidLocationForEmmetAbbreviation } from '../util/isValidLocationForE
 import { getDocumentSettings } from '../util/getDocumentSettings'
 import { isJsContext } from '../util/js'
 import { naturalExpand } from '../util/naturalExpand'
+import semver from 'semver'
 
 function completionsFromClassList(
   state: State,
@@ -306,7 +307,7 @@ function provideCssHelperCompletions(
   }
 }
 
-// TODO: vary items based on Tailwind version
+// TODO: vary docs links based on Tailwind version
 function provideTailwindDirectiveCompletions(
   state: State,
   { position, textDocument }: CompletionParams
@@ -329,14 +330,23 @@ function provideTailwindDirectiveCompletions(
   return {
     isIncomplete: false,
     items: [
-      {
-        label: 'base',
-        documentation: {
-          kind: MarkupKind.Markdown,
-          value:
-            'This injects Tailwind’s base styles and any base styles registered by plugins.\n\n[Tailwind CSS Documentation](https://tailwindcss.com/docs/functions-and-directives/#tailwind)',
-        },
-      },
+      semver.gte(state.version, '1.0.0-beta.1')
+        ? {
+            label: 'base',
+            documentation: {
+              kind: MarkupKind.Markdown,
+              value:
+                'This injects Tailwind’s base styles and any base styles registered by plugins.\n\n[Tailwind CSS Documentation](https://tailwindcss.com/docs/functions-and-directives/#tailwind)',
+            },
+          }
+        : {
+            label: 'preflight',
+            documentation: {
+              kind: MarkupKind.Markdown,
+              value:
+                'This injects Tailwind’s base styles, which is a combination of Normalize.css and some additional base styles.\n\n[Tailwind CSS Documentation](https://v0.tailwindcss.com/docs/functions-and-directives/#tailwind)',
+            },
+          },
       {
         label: 'components',
         documentation: {
diff --git a/packages/tailwindcss-language-server/src/util/state.ts b/packages/tailwindcss-language-server/src/util/state.ts
index d41127d..401cedf 100644
--- a/packages/tailwindcss-language-server/src/util/state.ts
+++ b/packages/tailwindcss-language-server/src/util/state.ts
@@ -29,6 +29,7 @@ export type Settings = {
 
 export type State = null | {
   enabled: boolean
+  version?: string
   configPath?: string
   config?: any
   separator?: string