refactor: integrate Zod-based loader and pass config to services

Author: fabiovincenzi

index.ts

@@ -2,8 +2,8 @@
 /* eslint-disable max-len */
 import yargs from 'yargs';
 import { hideBin } from 'yargs/helpers';
-import * as fs from 'fs';
-import { configFile, setConfigFile, validate } from './src/config/file';
+import { existsSync } from 'fs';
+import { configFile, setConfigFile, loadConfig } from './src/config/file';
 import proxy from './src/proxy';
 import service from './src/service';
 
@@ -13,37 +13,45 @@ const argv = yargs(hideBin(process.argv))
     validate: {
       description:
         'Check the proxy.config.json file in the current working directory for validation errors.',
-      required: false,
       alias: 'v',
       type: 'boolean',
     },
     config: {
       description: 'Path to custom git-proxy configuration file.',
-      default: 'proxy.config.json',
-      required: false,
       alias: 'c',
       type: 'string',
+      default: 'proxy.config.json',
     },
   })
   .strict()
   .parseSync();
 
-setConfigFile(argv.c as string || "");
+setConfigFile(argv.config);
 
-if (argv.v) {
-  if (!fs.existsSync(configFile)) {
+if (argv.validate) {
+  if (!existsSync(configFile)) {
     console.error(
-      `Config file ${configFile} doesn't exist, nothing to validate! Did you forget -c/--config?`,
+      `✖ Config file ${configFile} doesn't exist, nothing to validate! Did you forget -c/--config?`,
     );
     process.exit(1);
   }
 
-  validate();
-  console.log(`${configFile} is valid`);
-  process.exit(0);
+  try {
+    loadConfig();
+    console.log(`✔️  ${configFile} is valid`);
+    process.exit(0);
+  } catch (err: any) {
+    console.error('✖ Validation Error:', err.message);
+    process.exit(1);
+  }
 }
 
-validate();
+try {
+  loadConfig();
+} catch (err: any) {
+  console.error('✖ Errore di validazione:', err.message);
+  process.exit(1);
+}
 
 proxy.start();
 service.start();