From b61a9899585d1baac4ef8ae5296e256e9317e972 Mon Sep 17 00:00:00 2001
From: Eric Volpert <ericvolp12@gmail.com>
Date: Sat, 29 Jul 2017 01:57:44 -0500
Subject: [PATCH] Last Modified Sort (#174)

* Last Modified sorting

* Goimported the file so travis doesn't complain.
---
 assets/src/components/Listing.vue | 29 ++++++++++++++++++++++++-----
 file.go                           | 19 +++++++++++++++++++
 2 files changed, 43 insertions(+), 5 deletions(-)

diff --git a/assets/src/components/Listing.vue b/assets/src/components/Listing.vue
index c2d69e24..3abddcf6 100644
--- a/assets/src/components/Listing.vue
+++ b/assets/src/components/Listing.vue
@@ -20,12 +20,14 @@
             <i class="material-icons">{{ nameIcon }}</i>
           </p>
 
-          <p :class="{ active: !nameSorted }" class="size" @click="sort('size')">
+          <p :class="{ active: sizeSorted }" class="size" @click="sort('size')">
             <span>Size</span>
             <i class="material-icons">{{ sizeIcon }}</i>
           </p>
-
-          <p class="modified">Last modified</p>
+          <p :class="{ active: modifiedSorted }" class="modified" @click="sort('modified')">
+            <span>Last modified</span>
+            <i class="material-icons">{{ modifiedIcon }}</i>
+          </p>
         </div>
       </div>
     </div>
@@ -86,6 +88,12 @@ export default {
     nameSorted () {
       return (this.req.sort === 'name')
     },
+    sizeSorted () {
+      return (this.req.sort === 'size')
+    },
+    modifiedSorted () {
+      return (this.req.sort === 'modified')
+    },
     ascOrdered () {
       return (this.req.order === 'asc')
     },
@@ -97,7 +105,14 @@ export default {
       return 'arrow_downward'
     },
     sizeIcon () {
-      if (!this.nameSorted && this.ascOrdered) {
+      if (this.sizeSorted && this.ascOrdered) {
+        return 'arrow_downward'
+      }
+
+      return 'arrow_upward'
+    },
+    modifiedIcon () {
+      if (this.modifiedSorted && this.ascOrdered) {
         return 'arrow_downward'
       }
 
@@ -275,10 +290,14 @@ export default {
         if (this.nameIcon === 'arrow_upward') {
           order = 'asc'
         }
-      } else {
+      } else if (sort === 'size') {
         if (this.sizeIcon === 'arrow_upward') {
           order = 'asc'
         }
+      } else if (sort === 'modified') {
+        if (this.modifiedIcon === 'arrow_upward') {
+          order = 'asc'
+        }
       }
 
       let path = this.$store.state.baseURL
diff --git a/file.go b/file.go
index 4030229f..675744f2 100644
--- a/file.go
+++ b/file.go
@@ -328,6 +328,8 @@ func (l listing) ApplySort() {
 			sort.Sort(sort.Reverse(byName(l)))
 		case "size":
 			sort.Sort(sort.Reverse(bySize(l)))
+		case "modified":
+			sort.Sort(sort.Reverse(byModified(l)))
 		default:
 			// If not one of the above, do nothing
 			return
@@ -338,6 +340,8 @@ func (l listing) ApplySort() {
 			sort.Sort(byName(l))
 		case "size":
 			sort.Sort(bySize(l))
+		case "modified":
+			sort.Sort(byModified(l))
 		default:
 			sort.Sort(byName(l))
 			return
@@ -348,6 +352,7 @@ func (l listing) ApplySort() {
 // Implement sorting for listing
 type byName listing
 type bySize listing
+type byModified listing
 
 // By Name
 func (l byName) Len() int {
@@ -392,6 +397,20 @@ func (l bySize) Less(i, j int) bool {
 	return iSize < jSize
 }
 
+// By Modified
+func (l byModified) Len() int {
+	return len(l.Items)
+}
+
+func (l byModified) Swap(i, j int) {
+	l.Items[i], l.Items[j] = l.Items[j], l.Items[i]
+}
+
+func (l byModified) Less(i, j int) bool {
+	iModified, jModified := l.Items[i].ModTime, l.Items[j].ModTime
+	return iModified.Sub(jModified) < 0
+}
+
 var textExtensions = [...]string{
 	".md", ".markdown", ".mdown", ".mmark",
 	".asciidoc", ".adoc", ".ad",