From a1ac8e1b816e65bd5cbc29616f2e5823759415bb Mon Sep 17 00:00:00 2001
From: TiiJay <git@th-jahn.de>
Date: Sat, 30 Nov 2024 12:08:15 +0100
Subject: [PATCH] v.2.0.2 doBacktracking return Matrix-String

---
 .../src/n-dame-problem.controller.ts           | 18 +++++++++++++++---
 package.json                                   |  2 +-
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/apps/n-dame-problem/src/n-dame-problem.controller.ts b/apps/n-dame-problem/src/n-dame-problem.controller.ts
index 09e0135..7946eea 100644
--- a/apps/n-dame-problem/src/n-dame-problem.controller.ts
+++ b/apps/n-dame-problem/src/n-dame-problem.controller.ts
@@ -38,8 +38,20 @@ export class NDameProblemController {
     @Query('starting-position', new DefaultValuePipe(-1), ParseIntPipe)
     startingPosition: number,
   ) {
-    return this.nDameProblemService
-      .doBacktracking(startingPosition, modelSize)
-      .map((row) => row.map((col) => (col ? 'X' : '.')));
+    const backtrackMatrix: boolean[][] =
+      this.nDameProblemService.doBacktracking(startingPosition, modelSize);
+
+    const resultMatrix = backtrackMatrix.map((row: boolean[]) =>
+      row.map((b: boolean) => (b ? ' X' : ' .')),
+    );
+    const verticalLine = ' '.concat(''.padStart(modelSize * 2, '_'), ' ');
+    const resultMatrixStr = '\n|'.concat(
+      resultMatrix.map((row) => row.join('').concat('|\n')).join('|'),
+    );
+
+    return verticalLine.concat(
+      resultMatrixStr,
+      verticalLine.replaceAll('_', '~'),
+    );
   }
 }
diff --git a/package.json b/package.json
index 8618184..662eff5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "backtracking",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "description": "",
   "author": "",
   "private": true,