From 6db2cbcfcec423cd3c9f9084bfc51dda6e5286e8 Mon Sep 17 00:00:00 2001
From: Emile Nijssen <emile@athom.nl>
Date: Tue, 16 Jul 2024 15:45:21 +0200
Subject: [PATCH] support `homey app translate --file`

---
 bin/cmds/app/translate.js |  5 +++
 lib/App.js                | 69 +++++++++++++++++++++++----------------
 2 files changed, 45 insertions(+), 29 deletions(-)

diff --git a/bin/cmds/app/translate.js b/bin/cmds/app/translate.js
index 6bc22609..d9f9ccaa 100644
--- a/bin/cmds/app/translate.js
+++ b/bin/cmds/app/translate.js
@@ -22,6 +22,10 @@ exports.builder = yargs => {
       default: 'gpt-4o',
       type: 'string',
       description: 'OpenAI model to use.',
+    })
+    .option('file', {
+      type: 'string',
+      description: 'Absolute path to a single file to translate, instead of automatically translating the entire folder.',
     });
 };
 exports.handler = async yargs => {
@@ -31,6 +35,7 @@ exports.handler = async yargs => {
       languages: yargs.languages.split(',').map(lang => lang.trim()),
       apiKey: yargs.apiKey,
       model: yargs.model,
+      file: yargs.file,
     });
     await app.preprocess();
     await app.validate({
diff --git a/lib/App.js b/lib/App.js
index 170ad9ac..c2923f18 100644
--- a/lib/App.js
+++ b/lib/App.js
@@ -2922,6 +2922,7 @@ $ sudo systemctl restart docker
     languages = [],
     apiKey = process.env.OPENAI_API_KEY,
     model = 'gpt-4o',
+    file = null,
   }) {
     // Validate languages
     if (languages.includes('en')) {
@@ -2942,42 +2943,50 @@ You can create an API Key on https://platform.openai.com/api-keys.`);
     // Find & translate all .json files recursively
     const jsonFiles = new Set();
 
-    if (App.hasHomeyCompose({ appPath: this.path })) {
-      jsonFiles.add(path.join(this.path, '.homeycompose', 'app.json'));
+    if (file) {
+      if (!file.endsWith('.json')) {
+        throw new Error('--file only supports a .json file.');
+      }
+
+      jsonFiles.add(file);
     } else {
-      jsonFiles.add(path.join(this.path, 'app.json'));
-    }
+      if (App.hasHomeyCompose({ appPath: this.path })) {
+        jsonFiles.add(path.join(this.path, '.homeycompose', 'app.json'));
+      } else {
+        jsonFiles.add(path.join(this.path, 'app.json'));
+      }
 
-    const walkSync = async dir => {
-      const files = await fs.promises.readdir(dir);
-      await Promise.all(files.map(async file => {
-        const filePath = `${dir}/${file}`;
-        const fileStats = await fs.promises.stat(filePath);
+      const walkSync = async dir => {
+        const files = await fs.promises.readdir(dir);
+        await Promise.all(files.map(async file => {
+          const filePath = `${dir}/${file}`;
+          const fileStats = await fs.promises.stat(filePath);
+
+          if (fileStats.isDirectory()) {
+            if (file === 'locales') return;
+            if (file === 'node_modules') return;
+            if (file === '.homeybuild') return;
+            if (file === '.homeycompose') {
+              jsonFiles.add(path.normalize(`${filePath}/app.json`));
+            }
 
-        if (fileStats.isDirectory()) {
-          if (file === 'locales') return;
-          if (file === 'node_modules') return;
-          if (file === '.homeybuild') return;
-          if (file === '.homeycompose') {
-            jsonFiles.add(path.normalize(`${filePath}/app.json`));
+            await walkSync(filePath);
           }
 
-          await walkSync(filePath);
-        }
-
-        if (fileStats.isFile() && filePath.endsWith('.json')) {
-          if (file.startsWith('.')) return;
-          if (file === 'app.json') return;
-          if (file === 'env.json') return;
-          if (file === 'package.json') return;
-          if (file === 'package-lock.json') return;
+          if (fileStats.isFile() && filePath.endsWith('.json')) {
+            if (file.startsWith('.')) return;
+            if (file === 'app.json') return;
+            if (file === 'env.json') return;
+            if (file === 'package.json') return;
+            if (file === 'package-lock.json') return;
 
-          jsonFiles.add(path.normalize(filePath));
-        }
-      }));
-    };
+            jsonFiles.add(path.normalize(filePath));
+          }
+        }));
+      };
 
-    await walkSync(this.path);
+      await walkSync(this.path);
+    }
 
     Log(`Found ${jsonFiles.size} JSON files to translate...`);
 
@@ -3016,6 +3025,8 @@ ${content}`,
       });
     }));
 
+    if (file) return;
+
     // Translate README.txt
     const readme = await fs.promises.readFile(path.join(this.path, 'README.txt'), 'utf8');
     await Promise.all(Object.values(languages).map(async language => {