refactorings + basis of script editor.

services/httpapiv1/service.go

@@ -6,6 +6,7 @@ import (
 	"git.aiterp.net/lucifer3/server/effects"
 	"git.aiterp.net/lucifer3/server/events"
 	"git.aiterp.net/lucifer3/server/internal/color"
+	"git.aiterp.net/lucifer3/server/internal/gentools"
 	"git.aiterp.net/lucifer3/server/services/script"
 	"git.aiterp.net/lucifer3/server/services/uistate"
 	"github.com/google/uuid"
@@ -110,6 +111,86 @@ func New(addr string) (lucifer3.Service, error) {
 		return nil
 	})
 
+	e.GET("/subscribe-simple", func(c echo.Context) error {
+		type ChangedPatch struct {
+			Devices     map[string]*uistate.Device        `json:"devices"`
+			Assignments map[uuid.UUID]*uistate.Assignment `json:"assignments"`
+			Scripts     map[string][]script.Line          `json:"scripts"`
+			Full        *uistate.Data                     `json:"full,omitempty"`
+		}
+
+		ws, err := upgrader.Upgrade(c.Response(), c.Request(), nil)
+		if err != nil {
+			return err
+		}
+
+		sub := make(chan uistate.Patch, 64)
+		svc.addSub(sub)
+
+		defer svc.removeSub(sub)
+		defer ws.Close()
+
+		svc.mu.Lock()
+		err = ws.WriteJSON(ChangedPatch{Full: &svc.data})
+		svc.mu.Unlock()
+		if err != nil {
+			return err
+		}
+
+		patches := make([]uistate.Patch, 0, 128)
+		for {
+			patch := <-sub
+			patches = append(patches[:0], patch)
+			waitCh := time.After(time.Millisecond * 330)
+			waiting := true
+			for waiting {
+				select {
+				case patch, ok := <-sub:
+					patches = append(patches, patch)
+					waiting = ok
+				case <-waitCh:
+					waiting = false
+				}
+			}
+
+			statePatch := ChangedPatch{
+				Devices:     make(map[string]*uistate.Device),
+				Assignments: make(map[uuid.UUID]*uistate.Assignment),
+				Scripts:     make(map[string][]script.Line),
+				Full:        nil,
+			}
+
+			svc.mu.Lock()
+			for _, patch := range patches {
+				if patch.Device != nil {
+					if patch.Device.Delete {
+						statePatch.Devices[patch.Device.ID] = nil
+					} else {
+						statePatch.Devices[patch.Device.ID] = gentools.Ptr(svc.data.Devices[patch.Device.ID])
+					}
+				}
+				if patch.Assignment != nil {
+					if patch.Assignment.Delete {
+						statePatch.Assignments[patch.Assignment.ID] = nil
+					} else {
+						statePatch.Assignments[patch.Assignment.ID] = gentools.Ptr(svc.data.Assignments[patch.Assignment.ID])
+					}
+				}
+				if patch.Script != nil {
+					statePatch.Scripts[patch.Script.Name] = svc.data.Scripts[patch.Script.Name]
+				}
+			}
+			svc.mu.Unlock()
+
+			err := ws.WriteJSON(statePatch)
+			if err != nil {
+				break
+			}
+		}
+
+		return nil
+	})
+
 	e.POST("/command", func(c echo.Context) error {
 		var input commandInput
 		err := c.Bind(&input)