From a6131b57eb5e88aab4a4254cf897dc0c1c54d5eb Mon Sep 17 00:00:00 2001
From: Jannis Baum <jannis.baum@gmail.com>
Date: Thu, 26 Oct 2023 14:41:26 +0200
Subject: [PATCH] feat(#16): introduce config

---
 src/parser/config.ts | 26 ++++++++++++++++++++++++++
 src/parser/parser.ts | 10 ++--------
 2 files changed, 28 insertions(+), 8 deletions(-)
 create mode 100644 src/parser/config.ts

diff --git a/src/parser/config.ts b/src/parser/config.ts
new file mode 100644
index 00000000..07153923
--- /dev/null
+++ b/src/parser/config.ts
@@ -0,0 +1,26 @@
+import fs from 'fs';
+import { homedir } from 'os';
+import path from 'path';
+
+type Config = {
+    styles?: string;
+    /* eslint-disable-next-line @typescript-eslint/no-explicit-any */
+    katexOptions?: any;
+    pageTitle?: string;
+};
+let config: Config = {};
+
+const configPaths = [
+    path.join(homedir(), '.vivify', 'config.json'),
+    path.join(homedir(), '.vivify.json'),
+];
+
+for (const cp of configPaths) {
+    if (!fs.existsSync(cp)) continue;
+    try {
+        config = JSON.parse(fs.readFileSync(cp, 'utf8'));
+        break;
+    } catch {}
+}
+
+export default config;
diff --git a/src/parser/parser.ts b/src/parser/parser.ts
index 7f01d9ca..adfbefa1 100644
--- a/src/parser/parser.ts
+++ b/src/parser/parser.ts
@@ -1,16 +1,10 @@
 import { homedir } from 'os';
-import fs from 'fs';
 
 import MarkdownIt from 'markdown-it';
 import anchor from 'markdown-it-anchor';
 import highlight from './highlight';
 import graphviz from './dot';
-
-const katexConfigPath = `${homedir()}/.vivify/katex_config.json`;
-let katexConfig = {};
-if (fs.existsSync(katexConfigPath)) {
-    katexConfig = JSON.parse(fs.readFileSync(katexConfigPath, 'utf8'));
-}
+import config from './config';
 
 const mdit = new MarkdownIt({
     html: true,
@@ -29,7 +23,7 @@ mdit.use(require('markdown-it-inject-linenumbers'));
 mdit.use(require('markdown-it-texmath'), {
     engine: require('katex'),
     delimiters: 'dollars',
-    katexOptions: katexConfig,
+    katexOptions: config.katexOptions,
 });
 /* eslint-enable @typescript-eslint/no-var-requires */
 mdit.use(graphviz);