From a5d7c6f63810495eb950b0bf7917b5905943bd99 Mon Sep 17 00:00:00 2001
From: Marc-Antoine <marcantoinefernandes@gmail.com>
Date: Wed, 21 Aug 2024 17:55:26 +0200
Subject: [PATCH] fix: Correctly handle negative numbers, fix #65 (#67)

---
 .yarn/versions/66b0f787.yml                              | 5 +++++
 .../utils/__tests__/__snapshots__/types.spec.ts.snap     | 2 ++
 .../src/generator/utils/__tests__/types.spec.ts          | 8 ++++++++
 packages/typoas-generator/src/generator/utils/types.ts   | 9 ++++++++-
 4 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 .yarn/versions/66b0f787.yml

diff --git a/.yarn/versions/66b0f787.yml b/.yarn/versions/66b0f787.yml
new file mode 100644
index 0000000..8276a61
--- /dev/null
+++ b/.yarn/versions/66b0f787.yml
@@ -0,0 +1,5 @@
+releases:
+  "@typoas/generator": patch
+
+declined:
+  - "@typoas/cli"
diff --git a/packages/typoas-generator/src/generator/utils/__tests__/__snapshots__/types.spec.ts.snap b/packages/typoas-generator/src/generator/utils/__tests__/__snapshots__/types.spec.ts.snap
index a2e94a3..eea6436 100644
--- a/packages/typoas-generator/src/generator/utils/__tests__/__snapshots__/types.spec.ts.snap
+++ b/packages/typoas-generator/src/generator/utils/__tests__/__snapshots__/types.spec.ts.snap
@@ -30,6 +30,8 @@ exports[`create type from schema should handle primitive boolean enums 1`] = `"t
 
 exports[`create type from schema should handle primitive boolean schema 1`] = `"boolean"`;
 
+exports[`create type from schema should handle primitive negative number enums 1`] = `"-1 | 6"`;
+
 exports[`create type from schema should handle primitive number enums 1`] = `"1 | 6"`;
 
 exports[`create type from schema should handle primitive number schema 1`] = `"number"`;
diff --git a/packages/typoas-generator/src/generator/utils/__tests__/types.spec.ts b/packages/typoas-generator/src/generator/utils/__tests__/types.spec.ts
index cee2735..dfc63f1 100644
--- a/packages/typoas-generator/src/generator/utils/__tests__/types.spec.ts
+++ b/packages/typoas-generator/src/generator/utils/__tests__/types.spec.ts
@@ -78,6 +78,14 @@ describe('create type from schema', () => {
     expect(getStringFromNode(node)).toMatchSnapshot();
   });
 
+  it('should handle primitive negative number enums', () => {
+    const schema: SchemaObject = { type: 'number', enum: [-1, 6] };
+
+    const node = createTypeFromSchema(schema, new Context());
+
+    expect(getStringFromNode(node)).toMatchSnapshot();
+  });
+
   it('should handle dates', () => {
     const schema: SchemaObject = { type: 'string', format: 'date-time' };
 
diff --git a/packages/typoas-generator/src/generator/utils/types.ts b/packages/typoas-generator/src/generator/utils/types.ts
index 738f180..f10d7db 100644
--- a/packages/typoas-generator/src/generator/utils/types.ts
+++ b/packages/typoas-generator/src/generator/utils/types.ts
@@ -60,7 +60,14 @@ export function createTypeFromSchema(
             return e ? factory.createTrue() : factory.createFalse();
           }
           if (typeof e === 'number') {
-            return factory.createNumericLiteral(e);
+            const literal = factory.createNumericLiteral(Math.abs(e));
+            if (e >= 0) {
+              return literal;
+            }
+            return factory.createPrefixUnaryExpression(
+              SyntaxKind.MinusToken,
+              literal,
+            );
           }
           return factory.createStringLiteral(e as string, true);
         })