[mm-66, mm-12, mm-47] - resolves all three issues

README.md

@@ -27,10 +27,9 @@ The meeting settings for each channel can be configured in the Channel Header Dr
 
 Meeting settings include:
 
-- Schedule Day: Day of the week when the meeting is scheduled.
-- Hashtag Format: The format of the hashtag for the meeting date. The date format is based on [Go date and time formatting](https://yourbasic.org/golang/format-parse-string-time-date-example/#standard-time-and-date-formats).
-  The date format must be wrapped in double Braces ( {{ }} ).
-  A default is generated from the first 15 characters of the channel's name with the short name of the month and day (i.e. Dev-{{ Jan02 }}).
+- Schedule Day: Day of the week when the meeting is being scheduled.
+- Hashtag Format: The format of the hashtag for the meeting date. 
+  A default hashtag is generated from the first 15 characters of the channel's name with the short name of the month and day (i.e. Dev_{{ Jan 2 }}).
 
 #### Slash Commands to manage the meeting agenda:
 

server/command.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"fmt"
+	"regexp"
+	"sort"
 	"strings"
 	"time"
 
@@ -16,6 +18,13 @@ const (
 	wsEventList = "list"
 )
 
+// ParsedMeetingMessage is meeting message after being parsed
+type ParsedMeetingMessage struct {
+	date        string
+	number      string // TODO we don't need it right now
+	textMessage string
+}
+
 const helpCommandText = "###### Mattermost Agenda Plugin - Slash Command Help\n" +
 	"The Agenda plugin lets you queue up meeting topics for channel discussion at a later time.  When your meeting happens, you can click on the Hashtag to see all agenda items in the RHS. \n" +
 	"To configure the agenda for this channel, click on the Channel Name in Mattermost to access the channel options menu and select `Agenda Settings`" +
@@ -49,6 +58,9 @@ func (p *Plugin) ExecuteCommand(c *plugin.Context, args *model.CommandArgs) (*mo
 	case "queue":
 		return p.executeCommandQueue(args), nil
 
+	case "requeue":
+		return p.executeCommandReQueue(args), nil
+
 	case "setting":
 		return p.executeCommandSetting(args), nil
 
@@ -69,7 +81,7 @@ func (p *Plugin) executeCommandList(args *model.CommandArgs) *model.CommandRespo
 		weekday = int(parsedWeekday)
 	}
 
-	hashtag, err := p.GenerateHashtag(args.ChannelId, nextWeek, weekday)
+	hashtag, err := p.GenerateHashtag(args.ChannelId, nextWeek, weekday, false, time.Now().Weekday())
 	if err != nil {
 		return responsef("Error calculating hashtags")
 	}
@@ -132,6 +144,11 @@ func (p *Plugin) executeCommandQueue(args *model.CommandArgs) *model.CommandResp
 		return responsef("Missing parameters for queue command")
 	}
 
+	meeting, err := p.GetMeeting(args.ChannelId)
+	if err != nil {
+		return responsef("Can't find the meeting")
+	}
+
 	nextWeek := false
 	weekday := -1
 	message := strings.Join(split[2:], " ")
@@ -147,31 +164,147 @@ func (p *Plugin) executeCommandQueue(args *model.CommandArgs) *model.CommandResp
 		message = strings.Join(split[3:], " ")
 	}
 
-	hashtag, error := p.GenerateHashtag(args.ChannelId, nextWeek, weekday)
+	hashtag, error := p.GenerateHashtag(args.ChannelId, nextWeek, weekday, false, time.Now().Weekday())
 	if error != nil {
 		return responsef("Error calculating hashtags. Check the meeting settings for this channel.")
 	}
 
-	searchResults, appErr := p.API.SearchPostsInTeamForUser(args.TeamId, args.UserId, model.SearchParameter{Terms: &hashtag})
+	numQueueItems, itemErr := calculateQueItemNumberAndUpdateOldItems(meeting, args, p, hashtag)
+	if itemErr != nil {
+		return itemErr
+	}
 
+	_, appErr := p.API.CreatePost(&model.Post{
+		UserId:    args.UserId,
+		ChannelId: args.ChannelId,
+		RootId:    args.RootId,
+		Message:   fmt.Sprintf("#### %v %v) %v", hashtag, numQueueItems, message),
+	})
 	if appErr != nil {
-		return responsef("Error calculating list number")
+		return responsef("Error creating post: %s", appErr.Message)
+	}
+
+	return &model.CommandResponse{}
+}
+
+func calculateQueItemNumberAndUpdateOldItems(meeting *Meeting, args *model.CommandArgs, p *Plugin, hashtag string) (int, *model.CommandResponse) {
+	searchResults, appErr := p.API.SearchPostsInTeamForUser(args.TeamId, args.UserId, model.SearchParameter{Terms: &hashtag})
+	if appErr != nil {
+		return 0, responsef("Error calculating list number")
+	}
+
+	counter := 1
+
+	var sortedPosts []*model.Post
+	// TODO we won't need to do this once we fix https://github.com/mattermost/mattermost-server/issues/11006
+	for _, post := range searchResults.PostList.Posts {
+		sortedPosts = append(sortedPosts, post)
+	}
+
+	sort.Slice(sortedPosts, func(i, j int) bool {
+		return sortedPosts[i].CreateAt < sortedPosts[j].CreateAt
+	})
+
+	for _, post := range sortedPosts {
+		_, parsedMessage, _ := parseMeetingPost(meeting, post)
+		_, findErr := p.API.UpdatePost(&model.Post{
+			Id:        post.Id,
+			UserId:    args.UserId,
+			ChannelId: args.ChannelId,
+			RootId:    args.RootId,
+			Message:   fmt.Sprintf("#### %v %v) %v", hashtag, counter, parsedMessage.textMessage),
+		})
+		counter++
+		if findErr != nil {
+			return 0, responsef("Error updating post: %s", findErr.Message)
+		}
+	}
+	return counter, nil
+}
+
+func (p *Plugin) executeCommandReQueue(args *model.CommandArgs) *model.CommandResponse {
+	split := strings.Fields(args.Command)
+
+	if len(split) <= 2 {
+		return responsef("Missing parameters for requeue command")
+	}
+
+	meeting, err := p.GetMeeting(args.ChannelId)
+	if err != nil {
+		return responsef("Can't find the meeting")
 	}
 
-	postList := *searchResults.PostList
-	numQueueItems := len(postList.Posts)
+	oldPostID := split[2]
+	postToBeReQueued, _ := p.API.GetPost(oldPostID)
+	hashtagDateFormat, parsedMeetingMessage, errors := parseMeetingPost(meeting, postToBeReQueued)
+	if errors != nil {
+		return errors
+	}
+
+	originalPostDate := strings.ReplaceAll(strings.TrimSpace(parsedMeetingMessage.date), "_", " ") // reverse what we do to make it a valid hashtag
+	originalPostMessage := strings.TrimSpace(parsedMeetingMessage.textMessage)
+
+	today := time.Now()
+	local, _ := time.LoadLocation("Local")
+	formattedDate, _ := time.ParseInLocation(hashtagDateFormat, originalPostDate, local)
+	if formattedDate.Year() == 0 {
+		thisYear := today.Year()
+		formattedDate = formattedDate.AddDate(thisYear, 0, 0)
+	}
 
-	_, appErr = p.API.CreatePost(&model.Post{
+	if today.Year() <= formattedDate.Year() && today.YearDay() < formattedDate.YearDay() {
+		return responsef("We don't support re-queuing future items, only available for present and past items.")
+	}
+
+	hashtag, error := p.GenerateHashtag(args.ChannelId, false, -1, true, formattedDate.Weekday())
+	if error != nil {
+		return responsef("Error calculating hashtags. Check the meeting settings for this channel.")
+	}
+
+	numQueueItems, itemErr := calculateQueItemNumberAndUpdateOldItems(meeting, args, p, hashtag)
+	if itemErr != nil {
+		return itemErr
+	}
+
+	_, appErr := p.API.UpdatePost(&model.Post{
+		Id:        oldPostID,
 		UserId:    args.UserId,
 		ChannelId: args.ChannelId,
 		RootId:    args.RootId,
-		Message:   fmt.Sprintf("#### %v %v) %v", hashtag, numQueueItems+1, message),
+		Message:   fmt.Sprintf("#### %v %v) %v", hashtag, numQueueItems, originalPostMessage),
 	})
 	if appErr != nil {
-		return responsef("Error creating post: %s", appErr.Message)
+		return responsef("Error updating post: %s", appErr.Message)
 	}
+	return &model.CommandResponse{Text: fmt.Sprintf("Item has been Re-queued to %v", hashtag), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+}
 
-	return &model.CommandResponse{}
+func parseMeetingPost(meeting *Meeting, post *model.Post) (string, ParsedMeetingMessage, *model.CommandResponse) {
+	var (
+		prefix            string
+		hashtagDateFormat string
+	)
+	if matchGroups := meetingDateFormatRegex.FindStringSubmatch(meeting.HashtagFormat); len(matchGroups) == 4 {
+		prefix = matchGroups[1]
+		hashtagDateFormat = strings.TrimSpace(matchGroups[2])
+	} else {
+		return "", ParsedMeetingMessage{}, responsef("Error 267")
+	}
+
+	var (
+		messageRegexFormat = regexp.MustCompile(fmt.Sprintf(`(?m)^#### #%s(?P<date>.*) ([0-9]+)\) (?P<message>.*)?$`, prefix))
+	)
+
+	matchGroups := messageRegexFormat.FindStringSubmatch(post.Message)
+	if len(matchGroups) == 4 {
+		parsedMeetingMessage := ParsedMeetingMessage{
+			date:        matchGroups[1],
+			number:      matchGroups[2],
+			textMessage: matchGroups[3],
+		}
+		return hashtagDateFormat, parsedMeetingMessage, nil
+	}
+	return hashtagDateFormat, ParsedMeetingMessage{}, responsef("Please ensure correct message format!")
 }
 
 func (p *Plugin) executeCommandHelp(args *model.CommandArgs) *model.CommandResponse {

server/meeting.go

@@ -16,7 +16,7 @@ var (
 type Meeting struct {
 	ChannelID     string         `json:"channelId"`
 	Schedule      []time.Weekday `json:"schedule"`
-	HashtagFormat string         `json:"hashtagFormat"` // Default: {ChannelName}-Jan02
+	HashtagFormat string         `json:"hashtagFormat"` // Default: {ChannelName}-Jan-2
 }
 
 // GetMeeting returns a meeting
@@ -37,9 +37,10 @@ func (p *Plugin) GetMeeting(channelID string) (*Meeting, error) {
 		if err != nil {
 			return nil, err
 		}
+		paddedChannelName := strings.ReplaceAll(channel.Name, "-", "_")
 		meeting = &Meeting{
 			Schedule:      []time.Weekday{time.Thursday},
-			HashtagFormat: strings.Join([]string{fmt.Sprintf("%.15s", channel.Name), "{{ Jan02 }}"}, "-"),
+			HashtagFormat: strings.Join([]string{fmt.Sprintf("%.15s", paddedChannelName), "{{ Jan 2 }}"}, "_"),
 			ChannelID:     channelID,
 		}
 	}
@@ -62,7 +63,7 @@ func (p *Plugin) SaveMeeting(meeting *Meeting) error {
 }
 
 // GenerateHashtag returns a meeting hashtag
-func (p *Plugin) GenerateHashtag(channelID string, nextWeek bool, weekday int) (string, error) {
+func (p *Plugin) GenerateHashtag(channelID string, nextWeek bool, weekday int, requeue bool, assignedDay time.Weekday) (string, error) {
 	meeting, err := p.GetMeeting(channelID)
 	if err != nil {
 		return "", err
@@ -75,10 +76,20 @@ func (p *Plugin) GenerateHashtag(channelID string, nextWeek bool, weekday int) (
 			return "", err
 		}
 	} else {
-		// Get date for the list of days of the week
-		if meetingDate, err = nextWeekdayDateInWeek(meeting.Schedule, nextWeek); err != nil {
-			return "", err
+		// user didn't provide any specific date, Get date for the list of days of the week
+		if !requeue {
+			if meetingDate, err = nextWeekdayDateInWeek(meeting.Schedule, nextWeek); err != nil {
+				return "", err
+			}
+		} else {
+			if len(meeting.Schedule) == 1 && meeting.Schedule[0] == assignedDay { // if this day is the only day selected in settings
+				nextWeek = true
+			}
+			if meetingDate, err = nextWeekdayDateInWeekSkippingDay(meeting.Schedule, nextWeek, assignedDay); err != nil {
+				return "", err
+			}
 		}
+		//---- requeue Logic
 	}
 
 	var hashtag string
@@ -92,8 +103,10 @@ func (p *Plugin) GenerateHashtag(channelID string, nextWeek bool, weekday int) (
 		prefix = matchGroups[1]
 		hashtagFormat = strings.TrimSpace(matchGroups[2])
 		postfix = matchGroups[3]
+		formattedDate := meetingDate.Format(hashtagFormat)
+		formattedDate = strings.ReplaceAll(formattedDate, " ", "_")
 
-		hashtag = fmt.Sprintf("#%s%v%s", prefix, meetingDate.Format(hashtagFormat), postfix)
+		hashtag = fmt.Sprintf("#%s%v%s", prefix, formattedDate, postfix)
 	} else {
 		hashtag = fmt.Sprintf("#%s", meeting.HashtagFormat)
 	}

server/meeting_test.go

@@ -55,9 +55,9 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 				meeting: &Meeting{
 					ChannelID:     "QA",
 					Schedule:      []time.Weekday{time.Wednesday},
-					HashtagFormat: "{{Jan02}}",
+					HashtagFormat: "{{Jan 2}}",
 				}},
-			want:    "#" + assertNextWeekdayDate(time.Wednesday, true).Format("Jan02"),
+			want:    "#" + strings.ReplaceAll(assertNextWeekdayDate(time.Wednesday, true).Format("Jan 2"), " ", "_"),
 			wantErr: false,
 		},
 		{
@@ -67,9 +67,9 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 				meeting: &Meeting{
 					ChannelID:     "QA Backend",
 					Schedule:      []time.Weekday{time.Monday},
-					HashtagFormat: "QA-{{January 02 2006}}",
+					HashtagFormat: "QA_{{January 02 2006}}",
 				}},
-			want:    "#QA-" + assertNextWeekdayDate(time.Monday, true).Format("January 02 2006"),
+			want:    "#QA_" + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, true).Format("January 02 2006"), " ", "_"),
 			wantErr: false,
 		},
 		{
@@ -81,7 +81,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 					Schedule:      []time.Weekday{time.Monday},
 					HashtagFormat: "{{January 02 2006}}.vue",
 				}},
-			want:    "#" + assertNextWeekdayDate(time.Monday, false).Format("January 02 2006") + ".vue",
+			want:    "#" + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, false).Format("January 02 2006"), " ", "_") + ".vue",
 			wantErr: false,
 		},
 		{
@@ -93,7 +93,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 					Schedule:      []time.Weekday{time.Monday},
 					HashtagFormat: "React {{January 02 2006}} Born",
 				}},
-			want:    "#React " + assertNextWeekdayDate(time.Monday, false).Format("January 02 2006") + " Born",
+			want:    "#React " + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, false).Format("January 02 2006"), " ", "_") + " Born",
 			wantErr: false,
 		},
 		{
@@ -105,7 +105,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 					Schedule:      []time.Weekday{time.Monday},
 					HashtagFormat: "January 02 2006 {{January 02 2006}} January 02 2006",
 				}},
-			want:    "#January 02 2006 " + assertNextWeekdayDate(time.Monday, false).Format("January 02 2006") + " January 02 2006",
+			want:    "#January 02 2006 " + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, false).Format("January 02 2006"), " ", "_") + " January 02 2006",
 			wantErr: false,
 		},
 		{
@@ -117,7 +117,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 					Schedule:  []time.Weekday{time.Monday},
 					HashtagFormat: "{{   January 02 2006			}}",
 				}},
-			want:    "#" + assertNextWeekdayDate(time.Monday, false).Format("January 02 2006"),
+			want:    "#" + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, false).Format("January 02 2006"), " ", "_"),
 			wantErr: false,
 		},
 		{
@@ -129,7 +129,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 					Schedule:      []time.Weekday{time.Monday},
 					HashtagFormat: "{{ Mon Jan _2 }}",
 				}},
-			want:    "#" + assertNextWeekdayDate(time.Monday, false).Format("Mon Jan _2"),
+			want:    "#" + strings.ReplaceAll(assertNextWeekdayDate(time.Monday, false).Format("Mon Jan _2"), " ", "_"),
 			wantErr: false,
 		},
 	}
@@ -138,7 +138,7 @@ func TestPlugin_GenerateHashtag(t *testing.T) {
 			jsonMeeting, err := json.Marshal(tt.args.meeting)
 			tAssert.Nil(err)
 			api.On("KVGet", tt.args.meeting.ChannelID).Return(jsonMeeting, nil)
-			got, err := mPlugin.GenerateHashtag(tt.args.meeting.ChannelID, tt.args.nextWeek, -1)
+			got, err := mPlugin.GenerateHashtag(tt.args.meeting.ChannelID, tt.args.nextWeek, -1, false, time.Now().Weekday()) // last parameter doesn't matter unless requeue
 			if (err != nil) != tt.wantErr {
 				t.Errorf("GenerateHashtag() error = %v, wantErr %v", err, tt.wantErr)
 				return
@@ -176,7 +176,7 @@ func TestPlugin_GetMeeting(t *testing.T) {
 			},
 			want: &Meeting{
 				Schedule:      []time.Weekday{time.Thursday},
-				HashtagFormat: "Short-{{ Jan02 }}",
+				HashtagFormat: "Short_{{ Jan 2 }}",
 				ChannelID:     "#short.name.channel",
 			},
 			wantErr: false,
@@ -190,7 +190,7 @@ func TestPlugin_GetMeeting(t *testing.T) {
 			},
 			want: &Meeting{
 				Schedule:      []time.Weekday{time.Thursday},
-				HashtagFormat: "Very Long Chann-{{ Jan02 }}",
+				HashtagFormat: "Very Long Chann_{{ Jan 2 }}",
 				ChannelID:     "#long.name.channel",
 			},
 			wantErr: false,

server/plugin_test.go

@@ -24,7 +24,7 @@ func TestServeHTTP(t *testing.T) {
 		defaultMeeting := &Meeting{
 			ChannelID:     "myChannelId",
 			Schedule:      []time.Weekday{time.Thursday},
-			HashtagFormat: "Jan02",
+			HashtagFormat: "Jan-2",
 		}
 
 		jsonMeeting, err := json.Marshal(defaultMeeting)