From a2352e1eaa2f98903448aa23641380416141a441 Mon Sep 17 00:00:00 2001
From: Markus Thielker <mail.markus.thielker@gmail.com>
Date: Mon, 11 Mar 2024 02:45:35 +0100
Subject: [PATCH] N-FIN-8: add scope type

---
 src/lib/types/scope.ts | 48 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/lib/types/scope.ts

diff --git a/src/lib/types/scope.ts b/src/lib/types/scope.ts
new file mode 100644
index 0000000..a5f589a
--- /dev/null
+++ b/src/lib/types/scope.ts
@@ -0,0 +1,48 @@
+export enum ScopeType {
+    ThisMonth = 'This month',
+    LastMonth = 'Last month',
+    ThisYear = 'This year',
+    LastYear = 'Last year',
+}
+
+export class Scope {
+
+    public type: ScopeType;
+    public start: Date;
+    public end: Date;
+
+    private constructor(type: ScopeType, start: Date, end: Date) {
+        this.type = type;
+        this.start = start;
+        this.end = end;
+    }
+
+    static of(type: ScopeType): Scope {
+
+        let start: Date;
+        let end: Date;
+
+        const today = new Date();
+
+        switch (type) {
+            case ScopeType.ThisMonth:
+                start = new Date(today.getFullYear(), today.getMonth(), 1, 0, 0, 0, 0);
+                end = new Date(today.getFullYear(), today.getMonth() + 1, 0, 24, 0, 0, -1);
+                break;
+            case ScopeType.LastMonth:
+                start = new Date(today.getFullYear(), today.getMonth() - 1, 1, 0, 0, 0, 0);
+                end = new Date(today.getFullYear(), today.getMonth(), 0, 24, 0, 0, -1);
+                break;
+            case ScopeType.ThisYear:
+                start = new Date(today.getFullYear(), 0, 1, 0, 0, 0, 0);
+                end = new Date(today.getFullYear(), 11, 31, 24, 0, 0, -1);
+                break;
+            case ScopeType.LastYear:
+                start = new Date(today.getFullYear() - 1, 0, 1, 0, 0, 0, 0);
+                end = new Date(today.getFullYear() - 1, 11, 31, 24, 0, 0, -1);
+                break;
+        }
+
+        return new Scope(type, start, end);
+    }
+}