From: Bill Erickson <berickxx@gmail.com>
Date: Wed, 17 Mar 2021 21:05:59 +0000 (-0400)
Subject: LP1904036 Date util class
X-Git-Url: https://old-git.evergreen-ils.org/?a=commitdiff_plain;h=3ebae4889e6d862acb6862876cb0e06f1001a4fc;p=working%2FEvergreen.git

LP1904036 Date util class

Signed-off-by: Bill Erickson <berickxx@gmail.com>
---

diff --git a/Open-ILS/src/eg2/src/app/share/date-select/date-select.component.ts b/Open-ILS/src/eg2/src/app/share/date-select/date-select.component.ts
index b66a26188e..bd6e681753 100644
--- a/Open-ILS/src/eg2/src/app/share/date-select/date-select.component.ts
+++ b/Open-ILS/src/eg2/src/app/share/date-select/date-select.component.ts
@@ -1,6 +1,7 @@
 import {Component, OnInit, Input, Output, ViewChild, EventEmitter, forwardRef} from '@angular/core';
 import {NgbDateStruct} from '@ng-bootstrap/ng-bootstrap';
 import {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';
+import {DateUtil} from '@eg/share/util/date';
 
 /**
  * RE: displaying locale dates in the input field:
@@ -46,7 +47,7 @@ export class DateSelectComponent implements OnInit, ControlValueAccessor {
         if (this.current == null) { return null; }
         if (!this.isValidDate(this.current)) { return null; }
         const ymd = `${this.current.year}-${String(this.current.month).padStart(2, '0')}-${String(this.current.day).padStart(2, '0')}`;
-        const date = this.localDateFromYmd(ymd);
+        const date = DateUtil.localDateFromYmd(ymd);
         const iso = date.toISOString();
         return iso;
     }
@@ -54,7 +55,7 @@ export class DateSelectComponent implements OnInit, ControlValueAccessor {
         if (this.current == null) { return null; }
         if (!this.isValidDate(this.current)) { return null; }
         const ymd = `${this.current.year}-${String(this.current.month).padStart(2, '0')}-${String(this.current.day).padStart(2, '0')}`;
-        const date = this.localDateFromYmd(ymd);
+        const date = DateUtil.localDateFromYmd(ymd);
         return date;
     }
 
@@ -72,7 +73,7 @@ export class DateSelectComponent implements OnInit, ControlValueAccessor {
     ngOnInit() {
 
         if (this.initialYmd) {
-            this.initialDate = this.localDateFromYmd(this.initialYmd);
+            this.initialDate = DateUtil.localDateFromYmd(this.initialYmd);
 
         } else if (this.initialIso) {
             this.initialDate = new Date(this.initialIso);
@@ -99,7 +100,7 @@ export class DateSelectComponent implements OnInit, ControlValueAccessor {
 
     onDateSelect(evt) {
         const ymd = `${evt.year}-${String(evt.month).padStart(2, '0')}-${String(evt.day).padStart(2, '0')}`;
-        const date = this.localDateFromYmd(ymd);
+        const date = DateUtil.localDateFromYmd(ymd);
         const iso = date.toISOString();
         this.onChangeAsDate.emit(date);
         this.onChangeAsYmd.emit(ymd);
@@ -107,14 +108,6 @@ export class DateSelectComponent implements OnInit, ControlValueAccessor {
         this.propagateChange(date);
     }
 
-    // Create a date in the local time zone with selected YMD values.
-    // TODO: Consider moving this to a date service...
-    localDateFromYmd(ymd: string): Date {
-        const parts = ymd.split('-');
-        return new Date(
-            Number(parts[0]), Number(parts[1]) - 1, Number(parts[2]));
-    }
-
     reset() {
         this.current = {
             year: null,
diff --git a/Open-ILS/src/eg2/src/app/share/util/date.ts b/Open-ILS/src/eg2/src/app/share/util/date.ts
new file mode 100644
index 0000000000..cb6655435c
--- /dev/null
+++ b/Open-ILS/src/eg2/src/app/share/util/date.ts
@@ -0,0 +1,57 @@
+
+/* Utility code for dates */
+
+export class DateUtil {
+
+    /**
+     * Converts an interval string to seconds.
+     *
+     * intervalToSeconds('1 min 2 seconds')) => 62
+     * intervalToSeconds('2 days')) => 172800 (except across time changes)
+     * intervalToSeconds('02:00:23')) => 7223
+     */
+    static intervalToSeconds(interval: string): number {
+        const d = new Date();
+        let start = d.getTime();
+        const parts = interval.split(' ');
+
+        for(let i = 0; i < parts.length; i += 2)  {
+
+            if (!parts[i+1]) {
+                // interval is a bare hour:min:sec string
+                const times = parts[i].split(':');
+                d.setHours(d.getHours() + Number(times[0]));
+                d.setMinutes(d.getMinutes() + Number(times[1]));
+                d.setSeconds(d.getSeconds() + Number(times[2]));
+                continue;
+            }
+
+            const count = Number(parts[i]);
+            const partType = parts[i+1].replace(/s?,?$/, '');
+
+            if (partType.match(/^s/)) {
+                d.setSeconds(d.getSeconds() + count);
+            } else if (partType.match(/^min/)) {
+                d.setMinutes(d.getMinutes() + count);
+            } else if (partType.match(/^h/)) {
+                d.setHours(d.getHours() + count);
+            } else if (partType.match(/^d/)) {
+                d.setDate(d.getDate() + count);
+            } else if (partType.match(/^mon/)) {
+                d.setMonth(d.getMonth() + count);
+            } else if (partType.match(/^y/)) {
+                d.setFullYear(d.getFullYear() + count);
+            }
+        }
+
+        return Number((d.getTime() - start) / 1000);
+    }
+
+    // Create a date in the local time zone with selected YMD values.
+    static localDateFromYmd(ymd: string): Date {
+        const parts = ymd.split('-');
+        return new Date(
+            Number(parts[0]), Number(parts[1]) - 1, Number(parts[2]));
+    }
+}
+