fix broken suggestions on code files when there are multiple choices (#1349)

* fix broken suggestions on code files when there are multiple choices

* update snapshots

* better err0r

Author: dimaMachina

.changeset/seven-cobras-cheer.md

@@ -0,0 +1,5 @@
+---
+'@graphql-eslint/eslint-plugin': patch
+---
+
+fix broken suggestions on code files when there are multiple choices

packages/plugin/src/processor.ts

@@ -1,12 +1,13 @@
 import { Linter } from 'eslint';
+import { relative } from 'path';
 import {
   gqlPluckFromCodeStringSync,
   GraphQLTagPluckOptions,
 } from '@graphql-tools/graphql-tag-pluck';
 import { asArray } from '@graphql-tools/utils';
 import { GraphQLConfig } from 'graphql-config';
 import { loadOnDiskGraphQLConfig } from './graphql-config.js';
-import { REPORT_ON_FIRST_CHARACTER } from './utils.js';
+import { CWD, REPORT_ON_FIRST_CHARACTER } from './utils.js';
 
 export type Block = Linter.ProcessorFile & {
   lineOffset: number;
@@ -70,9 +71,13 @@ export const processor: Linter.Processor<Block | string> = {
       blocksMap.set(filePath, blocks);
 
       return [...blocks, code /* source code must be provided and be last */];
-    } catch (e) {
+    } catch (error) {
+      error.message = `[graphql-eslint] Error while preprocessing "${relative(
+        CWD,
+        filePath,
+      )}" file\n\n${error.message}`;
       // eslint-disable-next-line no-console
-      console.error(e);
+      console.error(error);
       // in case of parsing error return code as is
       return [code];
     }
@@ -105,8 +110,9 @@ export const processor: Linter.Processor<Block | string> = {
           message.fix.range[1] += offset;
         }
         for (const suggestion of message.suggestions || []) {
-          suggestion.fix.range[0] += offset;
-          suggestion.fix.range[1] += offset;
+          // DO NOT mutate until https://github.com/eslint/eslint/issues/16716
+          const [start, end] = suggestion.fix.range;
+          suggestion.fix.range = [start + offset, end + offset];
         }
       }
     }

packages/plugin/tests/__snapshots__/examples.spec.md

@@ -57,8 +57,8 @@ exports[`Examples > should work in monorepo 1`] = `
             desc: Rename to \`firstName\`,
             fix: {
               range: [
-                164,
-                173,
+                131,
+                140,
               ],
               text: firstName,
             },
@@ -67,8 +67,8 @@ exports[`Examples > should work in monorepo 1`] = `
             desc: Rename to \`lastName\`,
             fix: {
               range: [
-                164,
-                173,
+                131,
+                140,
               ],
               text: lastName,
             },