feat: impl release hand & next speaker selection

main.go

@@ -31,10 +31,10 @@ func main() {
 
 	fmt.Printf("Server will start on port %d\n", port)
 
-	rooms := rooms.RedisRM { Rdb: rdb, }
+	roomsM := rooms.RedisRM { Rdb: rdb, }
 	sessions := sessions.RedisSM{ Rdb: rdb, }
 
-	routes.RegisterRoutes(sessions, rooms)
+	routes.RegisterRoutes(sessions, roomsM)
 
 	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))
 }

rooms/room.go

@@ -0,0 +1,147 @@
+package rooms
+
+import (
+	"log"
+	"slices"
+)
+
+type Room struct {
+	Name           string // will be unique ID
+	AdminIds       []PersonId
+	PasswordHash   string
+	CurrentSpeaker PersonId // i guess let's set to zero value when it's noone from the room
+	Paricipants    []Person
+	// TODO hands, for each type of hand?
+	// i guess participants order fixed for now?
+	// and i'll still need 'current' for each hand level
+	ParticipantHands map[PersonId]HandGesture
+	Marks            map[HandGesture]PersonId
+}
+
+func (r *Room)InitMaps() {
+	if r.ParticipantHands == nil {
+		r.ParticipantHands = make(map[PersonId]HandGesture)
+	}
+	if r.Marks == nil {
+		r.Marks = make(map[HandGesture]PersonId)
+	}
+}
+
+// and how would i organize?
+// i should have map[HandGesture]ParticipantId as mark. for 'from where to go clockwise if returning a level lover'
+// now i want methods that for some person raise some hand, so i guess it adds what? to map[ParticipantId]HandGesture
+// i suppose methods should be on a room, in a session i'd have ParticipantId to pass in, and would load room
+// and i want all parts of room in same struct, because i'd want to subscribe to changes to all of them
+
+// i suppose raising a hand could be just in place adding PersonId->HandGesture,
+// but releasing hand should have additional logic
+func (r *Room) ReleaseHand(p PersonId) {
+	// releasing a hand of a current speaker should result in selection of a new speaker
+	log.Printf("about to release hand of %d in %s", p, r.Name)
+
+	// first remove hand of the requested person
+	currentSpeakerGesture, currentSpeakerHandFound := r.ParticipantHands[p]
+	if !currentSpeakerHandFound {
+		return
+	}
+
+	delete(r.ParticipantHands, p)
+
+	// if not a current speaker, no complicated logic required to release a hand
+	if r.CurrentSpeaker != p {
+		return
+	}
+
+	// if a current speaker - after removing the hand, we need to find next speaker
+	// from highest hand gesture to lowest, until one is found
+	gestures := [...]HandGesture{Meta, ClarifyingQ, Expand, ProbingQ, ChangeTopic}
+
+	var nextSpeakerId PersonId
+	var nextSpeakerFound bool
+
+gestureIteration:
+	for _, gesture := range gestures {
+		log.Printf("searching for gesture %s", gesture.String())
+		startIndex := r.gestureSearchStartIndex(gesture, currentSpeakerGesture)
+		participantsCount := len(r.Paricipants)
+		for i := 1; i < participantsCount; i++ {
+			checkIndex := startIndex + i%participantsCount
+			checkPerson := r.Paricipants[checkIndex]
+			checkGesture, isFound := r.ParticipantHands[checkPerson.Id]
+			if isFound && checkGesture == gesture {
+				nextSpeakerId, nextSpeakerFound = checkPerson.Id, true
+				break gestureIteration
+			}
+		}
+	}
+	if !nextSpeakerFound {
+		log.Printf("there is not next speaker, that's ok")
+	}
+
+	nextSpeakerGesture := r.ParticipantHands[nextSpeakerId]
+	log.Printf("found next speaker %+v", nextSpeakerId)
+
+	if nextSpeakerGesture > currentSpeakerGesture {
+		// raising the level of the speaker, need to save mark
+		log.Printf("we do have nextSpeaker of priority %s higher than current %s", nextSpeakerGesture.String(), currentSpeakerGesture.String())
+		r.Marks[currentSpeakerGesture] = p
+	}
+
+	// also we need to remove marks from top to current speaker level
+	for _, gesture := range gestures {
+		if gesture < nextSpeakerGesture {
+			break
+		}
+		delete(r.Marks, gesture)
+	}
+
+	r.CurrentSpeaker = nextSpeakerId
+}
+
+// find place to start - separate function
+// current speaker level, searched gesture level, room marks
+// if search level >= current speaker start from speaker
+// if search level < current speaekr look for mark, start from mark of that level,
+//
+//	if no mark - from speaker
+func (r *Room) gestureSearchStartIndex(gesture, curSpeakerGesture HandGesture) int {
+	if r.CurrentSpeaker == PersonId(0) {
+		// nobody is actully a speaker
+		return 0
+	}
+
+	var personFromWhichToStartSearch PersonId
+
+	// if searched guesture is higher or same as current speaker, start from speaker
+	if gesture >= curSpeakerGesture {
+		personFromWhichToStartSearch = r.CurrentSpeaker
+	}
+	// if searched gesture is of lower priority from current speaker, check marks to return to, or use speaker level
+	gestureMark, found := r.Marks[gesture]
+	if found {
+		personFromWhichToStartSearch = gestureMark
+	}
+	// if no mark found - count from the speaker
+	personFromWhichToStartSearch = r.CurrentSpeaker
+
+	indexFromWhichToStart := slices.IndexFunc(r.Paricipants, func(p Person) bool {
+		return p.Id == personFromWhichToStartSearch
+	})
+	return indexFromWhichToStart
+}
+
+// sooooooo. i need hand types. are there enums in go?
+type HandGesture uint8
+
+const (
+	ChangeTopic HandGesture = iota
+	ProbingQ
+	Expand
+	ClarifyingQ
+	Meta
+)
+
+// String() method to print the name of the days
+func (g HandGesture) String() string {
+	return [...]string{"Change Topic", "Probing Quesion", "Expand", "Clarifying Quesion", "Meta"}[g]
+}

rooms/rooms_manager.go

@@ -5,25 +5,28 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"math/rand"
 	"log"
 
 	"github.com/redis/go-redis/v9"
 )
 
-type Person struct {
-	PersonId     int
-	Name         string
-	PasswordHash string
+type PersonId int
+
+// TODO move to rooms i guess
+func RandomPersonId() PersonId {
+	randInt := rand.Int()
+	if randInt == 0 {
+		 randInt = 1
+	}
+	return PersonId(randInt)
 }
 
-type Room struct {
-	Name         string // will be unique ID
-	AdminIds     []int
+
+type Person struct {
+	Id     		 PersonId
+	Name         string
 	PasswordHash string
-	Paricipants  []Person
-	// TODO hands, for each type of hand?
-	// i guess participants order fixed for now?
-	// and i'll still need 'current' for each hand level
 }
 
 // well, it seems that i'd better do marshalling into bytes then

routes/login_page.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"html/template"
 	"log"
-	"math/rand"
 	"net/http"
 	"strconv"
 
@@ -31,6 +30,7 @@ func registerLoginRoutes(
 
 const authCookieName = "auth"
 const loginPath = "/login"
+
 type contextKey string
 
 func getContextSession(ctx context.Context) (sessions.SessionData, bool) {
@@ -108,14 +108,14 @@ func createRoomHandler(	templateFs *embed.FS,
 			return
 		}
 		person := rooms.Person{
-			PersonId: rand.Int(),
+			Id:           rooms.RandomPersonId(),
 			Name:         r.PostFormValue("personalName"),
 			PasswordHash: r.PostFormValue("personalPassword"), // TODO hash the password, not to store
 		}
 		newRoom := rooms.Room{
 			Name:         roomName,
 			PasswordHash: r.PostFormValue("roomPassword"), // TODO hash the password, not to store
-			AdminIds: []int{person.PersonId},
+			AdminIds:     []rooms.PersonId{person.Id},
 			Paricipants:  []rooms.Person{person},
 		}
 		err = roomsM.Save(newRoom)
@@ -123,7 +123,7 @@ func createRoomHandler(	templateFs *embed.FS,
 			log.Printf("what am i to do? error saving room %s", err)
 			// todo return error notice somehow
 		}
-		newSessionId, err := sessionSM.Save(newRoom.Name, person.PersonId)
+		newSessionId, err := sessionSM.Save(newRoom.Name, person.Id)
 		if err != nil {
 			log.Printf("what am i to do? error saving session %s", err)
 			// todo return error notice somehow
@@ -223,7 +223,7 @@ func joinRoomHandler(	templateFs *embed.FS,
 			person = rooms.Person{
 				Name:         personName,
 				PasswordHash: personPass,
-				PersonId: rand.Int(),
+				Id:           rooms.RandomPersonId(),
 			}
 			err := roomsM.Update(context.TODO(), room.Name, func(fromRoom rooms.Room) (toRoom rooms.Room) {
 				toRoom = fromRoom
@@ -242,7 +242,7 @@ func joinRoomHandler(	templateFs *embed.FS,
 		// now we have room and person, can create a session
 		// and we've checked password
 
-		newSessionId, err := sessionSM.Save(room.Name, person.PersonId)
+		newSessionId, err := sessionSM.Save(room.Name, person.Id)
 		if err != nil {
 			log.Printf("/login/submit > error saving session %s", err)
 		}
@@ -261,4 +261,3 @@ func joinRoomHandler(	templateFs *embed.FS,
 		w.Header().Add("HX-Redirect", "/")
 	}
 }
-

sessions/sessions_manager.go

@@ -6,18 +6,20 @@ import (
 	"log"
 	"math/rand"
 
+	"sunshine.industries/some-automoderation/rooms"
+
 	"github.com/redis/go-redis/v9"
 )
 
 type SessionData struct {
 	SessionId int            `redis:"session_id"`
 	RoomId    string         `redis:"room_id"`
-	PersonId  int 	`redis:"person_id"`
+	PersonId  rooms.PersonId `redis:"person_id"`
 }
 
 type SessionManagement interface {
 	Get(sessionId int) SessionData
-	Save(roomName string, personId int) (int, error)
+	Save(roomName string, personId rooms.PersonId) (int, error)
 }
 
 var ctx = context.Background()
@@ -43,7 +45,7 @@ func (redisSM RedisSM) Get(sessionId int) SessionData {
 	log.Printf("> successfully found %d %+v", sessionId, foundSession)
 	return foundSession
 }
-func (redisSM RedisSM) Save(roomName string, personId int) (int, error) {
+func (redisSM RedisSM) Save(roomName string, personId rooms.PersonId) (int, error) {
 	randId := rand.Int()
 	newSession := SessionData{
 		SessionId: randId,
@@ -64,7 +66,7 @@ func (d DummySM) Get(sessionId int) SessionData {
 	log.Printf("get dummy session by %d", sessionId)
 	return SessionData{}
 }
-func (d DummySM) Save(roomName string, personId int) (int, error) {
+func (d DummySM) Save(roomName string, personId rooms.PersonId) (int, error) {
 	log.Printf("save dummy session with %s %d", roomName, personId)
 	return 1, nil
 }