From efdcafd759fc01f8ee8310d627af82a2e5f468ac Mon Sep 17 00:00:00 2001
From: Robert Imig <rimig@palantir.com>
Date: Thu, 9 Nov 2017 15:36:38 -0600
Subject: [PATCH] Adds typings for latlon-geohash

---
 types/latlon-geohash/index.d.ts              | 51 ++++++++++++++++++++
 types/latlon-geohash/latlon-geohash-tests.ts | 19 ++++++++
 types/latlon-geohash/tsconfig.json           | 22 +++++++++
 types/latlon-geohash/tslint.json             |  1 +
 4 files changed, 93 insertions(+)
 create mode 100644 types/latlon-geohash/index.d.ts
 create mode 100644 types/latlon-geohash/latlon-geohash-tests.ts
 create mode 100644 types/latlon-geohash/tsconfig.json
 create mode 100644 types/latlon-geohash/tslint.json

diff --git a/types/latlon-geohash/index.d.ts b/types/latlon-geohash/index.d.ts
new file mode 100644
index 0000000000..26a75f276e
--- /dev/null
+++ b/types/latlon-geohash/index.d.ts
@@ -0,0 +1,51 @@
+// Type definitions for latlon-geohash 1.1
+// Project: https://github.com/chrisveness/latlon-geohash
+// Definitions by: Robert Imig <https://github.com/rimig>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+
+declare module "latlon-geohash" {
+    enum Direction {
+        North = "N",
+        South = "S",
+        East = "E",
+        West = "W",
+    }
+
+    interface Neighbours {
+        n: string;
+        ne: string;
+        e: string;
+        se: string;
+        s: string;
+        sw: string;
+        w: string;
+        nw: string;
+    }
+
+    /*
+    * Encode latitude/longitude point to geohash of given precision (number of characters in resulting geohash).
+    * If precision is not specified, it is inferred from precision of latitude/longitude values.
+    */
+    function encode(latitude: number, longitude: number, precision?: number): string;
+
+    /*
+    * return { lat, lon } of centre of given geohash, to appropriate precision.
+    */
+    function decode(geohash: string): number[];
+
+    /*
+    * return { sw, ne } bounds of given geohash.
+    */
+    function bounds(geohash: string): number[];
+
+    /*
+    * return adjacent cell to given geohash in specified direction (N/S/E/W).
+    */
+    function adjacent(geohash: string, direction: (Direction | string)): string;
+
+    /*
+    * return all 8 adjacent cells (n/ne/e/se/s/sw/w/nw) to given geohash.
+    */
+    function neighbours(geohash: string): Neighbours;
+}
diff --git a/types/latlon-geohash/latlon-geohash-tests.ts b/types/latlon-geohash/latlon-geohash-tests.ts
new file mode 100644
index 0000000000..e73b69e187
--- /dev/null
+++ b/types/latlon-geohash/latlon-geohash-tests.ts
@@ -0,0 +1,19 @@
+import * as Geohash from "latlon-geohash";
+
+// Encoding
+const atx_geohash: string = Geohash.encode(30.2672, -97.7431);
+const atx_geohash_p3: string = Geohash.encode(30.2672, -97.7431, 3);
+
+// Decoding
+const atx_latlong: number[] = Geohash.decode(atx_geohash);
+
+// Bounds
+const atx_bounds: number[] = Geohash.bounds(atx_geohash);
+
+// Adjacent
+const atx_adj_cell1: string = Geohash.adjacent(atx_geohash, Geohash.Direction.North);
+const atx_adj_cell2: string = Geohash.adjacent(atx_geohash, "N");
+
+// Neighbors
+const atx_neighbors: Geohash.Neighbours = Geohash.neighbours(atx_geohash);
+const atx_adj_cell3: string = atx_neighbors.n;
diff --git a/types/latlon-geohash/tsconfig.json b/types/latlon-geohash/tsconfig.json
new file mode 100644
index 0000000000..4ebc241222
--- /dev/null
+++ b/types/latlon-geohash/tsconfig.json
@@ -0,0 +1,22 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "latlon-geohash-tests.ts"
+    ]
+}
diff --git a/types/latlon-geohash/tslint.json b/types/latlon-geohash/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/latlon-geohash/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }