feat: improve date algorithm

layouts/partials/widget/status.html

@@ -46,13 +46,64 @@ $postCount := len $posts }}
       let start = new Date({{ .Site.Params.widgets.status.start }})
       let startFormated = start.format({{ .Site.Params.widgets.status.format }})
       document.querySelector('#start').innerHTML = startFormated
+      start.setMonth(start.getMonth() - 1)
 
       let now = new Date()
-    let diff = new Date(now.getTime() - start.getTime());
+      now.setMonth(now.getMonth() -1)
 
-    let years = (diff.getUTCFullYear() - 1970)
-    let months = diff.getUTCMonth()
-    let days = diff.getUTCDate() - 1
-    document.querySelector('#time').innerHTML = years + ' 年 ' + months + ' 月 ' + days + ' 天'
+      let diff = Date.UTC(now.getFullYear(), now.getMonth(), now.getDay(), 0, 0, 0)
+    	 - Date.UTC(start.getFullYear(), start.getMonth(), start.getDay(), 0, 0, 0)
+
+      function checkleapyear(datea)
+      {
+        if(datea.getYear() % 4 == 0)
+        {
+          if(datea.getYear() % 10 != 0)
+          {
+            return true
+          }
+          else
+          {
+            if(datea.getYear() % 400 == 0)
+              return true
+            else
+              return false
+          }
+        }
+      return false;
+      }
+
+      function DaysInMonth(Y, M) {
+          with (new Date(Y, M, 1, 12)) {
+            setDate(-2)
+            return getDate()
+          }
+      }
+
+      function datediff(date1, date2)
+      {
+        var y1 = date1.getFullYear(), m1 = date1.getMonth(), d1 = date1.getDate(),
+          y2 = date2.getFullYear(), m2 = date2.getMonth(), d2 = date2.getDate()
+          if (d1 < d2)
+          {
+              m1--
+              d1 += DaysInMonth(y2, m2)
+          }
+          if (m1 < m2)
+          {
+              y1--
+              m1 += 12
+          }
+          return [y1 - y2, m1 - m2, d1 - d2]
+      }
+
+      var dife = datediff(now, start)
+    if(checkleapyear(start)==true)
+    {
+    	document.querySelector('#time').innerHTML = dife[0] + " 年 "+dife[1] + ' 月 ' + dife[2] + ' 天'
+
+    }else{
+    	document.querySelector('#time').innerHTML = dife[0] + " 年 "+dife[1] + ' 月 ' + dife[2] + ' 天'
+    }
   </script>
 </section>