From 7df62ca1dc067f9650a64b8d12309eac71ba6dbe Mon Sep 17 00:00:00 2001
From: Owen Buckley <owenbuckley13@gmail.com>
Date: Tue, 2 Aug 2022 17:40:22 -0400
Subject: [PATCH] flatten refactoring

---
 greenwood.config.js                   |  2 +-
 packages/cli/src/lifecycles/config.js | 54 ++++++++++++++-------------
 2 files changed, 30 insertions(+), 26 deletions(-)

diff --git a/greenwood.config.js b/greenwood.config.js
index 45f4a3b14..332980001 100644
--- a/greenwood.config.js
+++ b/greenwood.config.js
@@ -35,7 +35,7 @@ export default {
       }
     },
     greenwoodPluginIncludeHTML(),
-    ...greenwoodPluginRendererPuppeteer()
+    greenwoodPluginRendererPuppeteer()
   ],
   markdown: {
     plugins: [
diff --git a/packages/cli/src/lifecycles/config.js b/packages/cli/src/lifecycles/config.js
index 7e5ad7301..1e4fbdaf8 100644
--- a/packages/cli/src/lifecycles/config.js
+++ b/packages/cli/src/lifecycles/config.js
@@ -5,6 +5,7 @@ import { fileURLToPath, pathToFileURL, URL } from 'url';
 // get and "tag" all plugins provided / maintained by the @greenwood/cli
 // and include as the default set, with all user plugins getting appended
 const greenwoodPluginsBasePath = fileURLToPath(new URL('../plugins', import.meta.url));
+const PLUGINS_FLATTENED_DEPTH = 2;
 
 const greenwoodPlugins = (await Promise.all([
   path.join(greenwoodPluginsBasePath, 'copy'),
@@ -14,7 +15,7 @@ const greenwoodPlugins = (await Promise.all([
 ].map(async (pluginDirectory) => {
   const files = await fs.promises.readdir(pluginDirectory);
 
-  return (await Promise.all(files.map(async(file) => {
+  return await Promise.all(files.map(async(file) => {
     const importPaTh = pathToFileURL(`${pluginDirectory}${path.sep}${file}`);
     const pluginImport = await import(importPaTh);
     const plugin = pluginImport[Object.keys(pluginImport)[0]];
@@ -22,8 +23,8 @@ const greenwoodPlugins = (await Promise.all([
     return Array.isArray(plugin)
       ? plugin
       : [plugin];
-  }))).flat();
-}).flat())).flat().map((plugin) => {
+  }));
+}))).flat(PLUGINS_FLATTENED_DEPTH).map((plugin) => {
   return {
     isGreenwoodDefaultPlugin: true,
     ...plugin
@@ -99,39 +100,42 @@ const readAndMergeConfig = async() => {
         }
 
         if (plugins && plugins.length > 0) {
-          plugins.forEach(plugin => {
-            const flattened = (Array.isArray(plugin) ? plugin : [plugin]).flat();
+          const flattened = plugins.flat(PLUGINS_FLATTENED_DEPTH);
 
-            flattened.forEach(plugin => {
-              if (!plugin.type || pluginTypes.indexOf(plugin.type) < 0) {
-                reject(`Error: greenwood.config.js plugins must be one of type "${pluginTypes.join(', ')}". got "${plugin.type}" instead.`);
-              }
-
-              if (!plugin.provider || typeof plugin.provider !== 'function') {
-                const providerTypeof = typeof plugin.provider;
+          flattened.forEach(plugin => {
+            if (!plugin.type || pluginTypes.indexOf(plugin.type) < 0) {
+              reject(`Error: greenwood.config.js plugins must be one of type "${pluginTypes.join(', ')}". got "${plugin.type}" instead.`);
+            }
 
-                reject(`Error: greenwood.config.js plugins provider must be a function. got ${providerTypeof} instead.`);
-              }
+            if (!plugin.provider || typeof plugin.provider !== 'function') {
+              const providerTypeof = typeof plugin.provider;
 
-              if (!plugin.name || typeof plugin.name !== 'string') {
-                const nameTypeof = typeof plugin.name;
+              reject(`Error: greenwood.config.js plugins provider must be a function. got ${providerTypeof} instead.`);
+            }
 
-                reject(`Error: greenwood.config.js plugins must have a name. got ${nameTypeof} instead.`);
-              }
-            });
+            if (!plugin.name || typeof plugin.name !== 'string') {
+              const nameTypeof = typeof plugin.name;
 
-            customConfig.plugins = [
-              ...customConfig.plugins,
-              ...flattened
-            ];
+              reject(`Error: greenwood.config.js plugins must have a name. got ${nameTypeof} instead.`);
+            }
           });
 
           // if user provided a custom renderer, filter out Greenwood's default renderer
-          if (customConfig.plugins.filter(plugin => plugin.type === 'renderer').length > 1) {
+          const customRendererPlugins = flattened.filter(plugin => plugin.type === 'renderer').length;
+
+          if (customRendererPlugins === 1) {
             customConfig.plugins = customConfig.plugins.filter((plugin) => {
-              return plugin.type !== 'renderer' || plugin.type === 'renderer' && !plugin.isGreenwoodDefaultPlugin;
+              return plugin.type !== 'renderer';
             });
+          } else if (customRendererPlugins > 1) {
+            console.warn('More than one custom renderer plugin detected.  Please make sure you are only loading one.');
+            console.debug(plugins.filter(plugin => plugin.type === 'renderer'));
           }
+
+          customConfig.plugins = [
+            ...customConfig.plugins,
+            ...flattened
+          ];
         }
 
         if (devServer && Object.keys(devServer).length > 0) {