From cf66dbf9f7b3631fb71657c265f37503db6b0ab8 Mon Sep 17 00:00:00 2001
From: Mike Fowler <mike.fowler@airbnb.com>
Date: Sat, 22 Dec 2018 17:05:06 -0500
Subject: [PATCH] Add type definitions for modular-scale module

---
 types/modular-scale/index.d.ts             | 41 ++++++++++++++++++++++
 types/modular-scale/modular-scale-tests.ts |  5 +++
 types/modular-scale/tsconfig.json          | 23 ++++++++++++
 types/modular-scale/tslint.json            |  1 +
 4 files changed, 70 insertions(+)
 create mode 100644 types/modular-scale/index.d.ts
 create mode 100644 types/modular-scale/modular-scale-tests.ts
 create mode 100644 types/modular-scale/tsconfig.json
 create mode 100644 types/modular-scale/tslint.json

diff --git a/types/modular-scale/index.d.ts b/types/modular-scale/index.d.ts
new file mode 100644
index 0000000000..ba3f9379b7
--- /dev/null
+++ b/types/modular-scale/index.d.ts
@@ -0,0 +1,41 @@
+// Type definitions for modular-scale 5.1
+// Project: https://github.com/kristoferjoseph/modular-scale
+// Definitions by: Mike Fowler <https://github.com/mikefowler>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export interface ModularScaleOptions {
+    /** The ratio to use in the generated type scale function. Defaults to ModularScaleRatio.goldenSection */
+    ratio?: number;
+
+    /** The base font size (in pixels) to use for the type scale. Defaults to 16 */
+    base?: number;
+}
+
+export interface ModularScaleRatio {
+    minorSecond: number;
+    majorSecond: number;
+    minorThird: number;
+    majorThird: number;
+    perfectFourth: number;
+    augFourth: number;
+    perfectFifth: number;
+    minorSixth: number;
+    goldenSection: number;
+    majorSixth: number;
+    minorSeventh: number;
+    majorSeventh: number;
+    octave: number;
+    majorTenth: number;
+    majorEleventh: number;
+    majorTwelfth: number;
+    doubleOctave: number;
+}
+
+export interface modularScale {
+    (step: number, relative?: boolean): number;
+    steps(steps: number, relative?: boolean): number[];
+}
+
+export const ratios: ModularScaleRatio;
+
+export default function ModularScale(options: ModularScaleOptions): modularScale;
diff --git a/types/modular-scale/modular-scale-tests.ts b/types/modular-scale/modular-scale-tests.ts
new file mode 100644
index 0000000000..574cf702b0
--- /dev/null
+++ b/types/modular-scale/modular-scale-tests.ts
@@ -0,0 +1,5 @@
+import ModularScale, { ratios } from 'modular-scale';
+
+const ms = ModularScale({ ratio: ratios.doubleOctave }); // $ExpectType modularScale
+ms(1); // $ExpectType number
+ms.steps(1); // $ExpectType number[]
diff --git a/types/modular-scale/tsconfig.json b/types/modular-scale/tsconfig.json
new file mode 100644
index 0000000000..85c1460c77
--- /dev/null
+++ b/types/modular-scale/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "modular-scale-tests.ts"
+    ]
+}
diff --git a/types/modular-scale/tslint.json b/types/modular-scale/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/modular-scale/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }