web_lib

commit 207382685f145a060a9273350bd201c2dadcc077
parent 916633c3fc76f478838d1f54ac57e3e846aef7d0
Author: triesap <137732411+triesap@users.noreply.github.com>
Date:   Wed, 28 Aug 2024 09:42:19 +0000

utils: add geolocation functions, fix time_created_on() to use iso format

Diffstat:
M
utils/package.json
 | 
2
++
A
utils/src/geolocation.ts
 | 
30
++++++++++++++++++++++++++++++
M
utils/src/index.ts
 | 
1
+
M
utils/src/types.ts
 | 
14
++++++++++++--
M
utils/src/utils.ts
 | 
4
++--
M
utils/tsconfig.json
 | 
1
+

6 files changed, 48 insertions(+), 4 deletions(-)
diff --git a/utils/package.json b/utils/package.json
@@ -10,6 +10,7 @@
         "dev": "tsc -w"
     },
     "devDependencies": {
+        "@types/ngeohash": "0.6.8",
         "@types/uuid": "^10.0.0",
         "typescript": "^5.3.3"
     },
@@ -19,6 +20,7 @@
     "dependencies": {
         "@noble/hashes": "^1.4.0",
         "jshashes": "^1.0.8",
+        "ngeohash": "0.6.3",
         "nostr-tools": "^2.7.2",
         "uuid": "^10.0.0"
     }
diff --git a/utils/src/geolocation.ts b/utils/src/geolocation.ts
@@ -0,0 +1,29 @@
+import ngeohash from "ngeohash";
+import { LocationPoint } from "./types";
+
+export const geohash_encode = (opts: {
+    lat: string | number;
+    lng: string | number;
+}): string => {
+    const geohash = ngeohash.encode(opts.lat, opts.lng);
+    return geohash;
+};
+
+export const geohash_decode = (opts: {
+    geohash: string;
+}): LocationPoint => {
+    const { latitude: lat, longitude: lng, error: { latitude: lat_err, longitude: lng_err } } = ngeohash.decode(opts.geohash);
+    return {
+        lat,
+        lng,
+        error: {
+            lat: lat_err,
+            lng: lng_err
+        }
+    };
+};
+
+export const location_geohash = (lat: number, lng: number): string => {
+    const res = geohash_encode({ lat, lng });
+    return res;
+};
+\ No newline at end of file
diff --git a/utils/src/index.ts b/utils/src/index.ts
@@ -1,5 +1,6 @@
 
 import "./global.d.ts";
+export * from "./geolocation"
 export * from "./jshashes"
 export * from "./nostr-tools"
 export * from "./types"
diff --git a/utils/src/types.ts b/utils/src/types.ts
@@ -1,3 +1,13 @@
+
 export type ErrorResponse = {
     error: string;
-};
-\ No newline at end of file
+};
+
+export type LocationPoint = {
+    lat: number;
+    lng: number;
+    error: {
+        lat: number;
+        lng: number;
+    };
+}
+\ No newline at end of file
diff --git a/utils/src/utils.ts b/utils/src/utils.ts
@@ -1,5 +1,5 @@
 import { v4 } from "uuid";
-import { ErrorResponse } from "./types";
+import type { ErrorResponse } from "./types";
 
 export const regex: Record<string, RegExp> = {
     word_only: /^[a-zA-Z]+$/,
@@ -16,7 +16,7 @@ export function time_now_ms(): number {
 };
 
 export function time_created_on(): string {
-    return new Date().toUTCString();
+    return new Date().toISOString();
 };
 
 export function err_msg(e: unknown, append?: string): ErrorResponse {
diff --git a/utils/tsconfig.json b/utils/tsconfig.json
@@ -8,6 +8,7 @@
         "outDir": "./dist",
         "rootDir": "./src",
         "noEmit": true,
+        "esModuleInterop": true
     },
     "include": [
         "src"