From 2d98fcffdf895a6a23a34e2bfc0b1430488f2e0e Mon Sep 17 00:00:00 2001
From: Max Magorsch <arzano@gentoo.org>
Date: Fri, 19 Jun 2020 18:33:21 +0200
Subject: Speed up the /lists page

Signed-off-by: Max Magorsch <arzano@gentoo.org>
---
 pkg/app/list/browse.go | 52 +++++++++++++++++++++++++++++++++++---------------
 pkg/importer/utils.go  |  9 ++++++++-
 pkg/models/message.go  |  1 +
 3 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/pkg/app/list/browse.go b/pkg/app/list/browse.go
index 7d046e6..fdc3ab1 100644
--- a/pkg/app/list/browse.go
+++ b/pkg/app/list/browse.go
@@ -2,30 +2,42 @@ package list
 
 import (
 	"archives/pkg/config"
+	"archives/pkg/database"
 	"archives/pkg/models"
 	"net/http"
 )
 
 func Browse(w http.ResponseWriter, r *http.Request) {
 
-	// Count number of messages in the current mailing lists
-	var currentMailingLists []models.MailingList
-	for _, listName := range config.CurrentMailingLists() {
-		messageCount, _ := countMessages(listName)
-		currentMailingLists = append(currentMailingLists, models.MailingList{
-			Name:         listName,
-			MessageCount: messageCount,
-		})
+	var res []struct {
+		Name string
+		MessageCount int
+	}
+	err := database.DBCon.Model((*models.Message)(nil)).
+		ColumnExpr("list as name, count(*) as message_count").
+		Group("list").
+		Select(&res)
+
+	if err != nil {
+		http.NotFound(w,r)
+		return
 	}
 
-	// Count number of messages in the frozen archives
+	var currentMailingLists []models.MailingList
 	var frozenArchives []models.MailingList
-	for _, listName := range config.FrozenArchives() {
-		messageCount, _ := countMessages(listName)
-		frozenArchives = append(frozenArchives, models.MailingList{
-			Name:         listName,
-			MessageCount: messageCount,
-		})
+
+	for _, list := range res {
+		if contains(config.CurrentMailingLists(), list.Name) {
+			currentMailingLists = append(currentMailingLists, models.MailingList{
+				Name: list.Name,
+				MessageCount: list.MessageCount,
+			})
+		}else if contains(config.FrozenArchives(), list.Name) {
+			frozenArchives = append(frozenArchives, models.MailingList{
+				Name: list.Name,
+				MessageCount: list.MessageCount,
+			})
+		}
 	}
 
 	browseData := struct {
@@ -38,3 +50,13 @@ func Browse(w http.ResponseWriter, r *http.Request) {
 
 	renderBrowseTemplate(w, browseData)
 }
+
+
+func contains(s []string, e string) bool {
+	for _, a := range s {
+		if a == e {
+			return true
+		}
+	}
+	return false
+}
diff --git a/pkg/importer/utils.go b/pkg/importer/utils.go
index c2d38fc..1af34ed 100644
--- a/pkg/importer/utils.go
+++ b/pkg/importer/utils.go
@@ -28,6 +28,7 @@ func importMail(name, path, maildirPath string) {
 		Body:        getBody(m.Header, m.Body),
 		Date:        getDate(m.Header),
 		Lists:       getLists(m.Header),
+		List:        getListName(path),
 		Comment:     "",
 		Hidden:      false,
 	}
@@ -116,6 +117,12 @@ func getLists(header mail.Header) []string {
 	return lists
 }
 
+func getListName(path string) string {
+	listName := strings.ReplaceAll(path, config.MailDirPath() + ".", "")
+	listName = strings.Split(listName, "/")[0]
+	return listName
+}
+
 func insertMessage(message models.Message) error {
 	_, err := database.DBCon.Model(&message).
 		Value("tsv_subject", "to_tsvector(?)", message.GetSubject()).
@@ -127,7 +134,7 @@ func insertMessage(message models.Message) error {
 
 func isPublicList(path string) bool {
 	for _, publicList := range config.AllPublicMailingLists(){
-		if strings.HasPrefix(path, config.MailDirPath() + "." + publicList + "/") {
+		if publicList == getListName(path) {
 			return true
 		}
 	}
diff --git a/pkg/models/message.go b/pkg/models/message.go
index 17bbb9d..6d8b299 100644
--- a/pkg/models/message.go
+++ b/pkg/models/message.go
@@ -16,6 +16,7 @@ type Message struct {
 	Attachments []Attachment
 
 	Lists []string
+	List string
 	Date  time.Time
 
 	//Search           types.ValueAppender // tsvector
-- 
cgit v1.2.3-65-gdbad