wallpaper: migrate auto-cycling scheduling to backend

core/internal/server/wallpaper/handlers.go

@@ -0,0 +1,84 @@
+package wallpaper
+
+import (
+	"encoding/json"
+	"fmt"
+	"net"
+
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/server/models"
+	"github.com/AvengeMedia/DankMaterialShell/core/internal/server/params"
+)
+
+func HandleRequest(conn net.Conn, req models.Request, manager *Manager) {
+	if manager == nil {
+		models.RespondError(conn, req.ID, "wallpaper manager not initialized")
+		return
+	}
+
+	switch req.Method {
+	case "wallpaper.getState":
+		handleGetState(conn, req, manager)
+	case "wallpaper.setConfig":
+		handleSetConfig(conn, req, manager)
+	case "wallpaper.trigger":
+		handleTrigger(conn, req, manager)
+	case "wallpaper.subscribe":
+		handleSubscribe(conn, req, manager)
+	default:
+		models.RespondError(conn, req.ID, fmt.Sprintf("unknown method: %s", req.Method))
+	}
+}
+
+func handleGetState(conn net.Conn, req models.Request, manager *Manager) {
+	models.Respond(conn, req.ID, manager.GetState())
+}
+
+func handleSetConfig(conn net.Conn, req models.Request, manager *Manager) {
+	raw, ok := params.Any(req.Params, "config")
+	if !ok {
+		models.RespondError(conn, req.ID, "missing or invalid 'config' parameter")
+		return
+	}
+
+	data, err := json.Marshal(raw)
+	if err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+
+	var config Config
+	if err := json.Unmarshal(data, &config); err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+
+	manager.SetConfig(config)
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "wallpaper schedule set"})
+}
+
+func handleTrigger(conn net.Conn, req models.Request, manager *Manager) {
+	manager.ResetSchedule(params.StringOpt(req.Params, "target", ""))
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "wallpaper schedule reset"})
+}
+
+func handleSubscribe(conn net.Conn, req models.Request, manager *Manager) {
+	clientID := fmt.Sprintf("client-%p", conn)
+	stateChan := manager.Subscribe(clientID)
+	defer manager.Unsubscribe(clientID)
+
+	initialState := manager.GetState()
+	if err := json.NewEncoder(conn).Encode(models.Response[State]{
+		ID:     req.ID,
+		Result: &initialState,
+	}); err != nil {
+		return
+	}
+
+	for state := range stateChan {
+		if err := json.NewEncoder(conn).Encode(models.Response[State]{
+			Result: &state,
+		}); err != nil {
+			return
+		}
+	}
+}