switch hto monorepo structure

backend/internal/server/freedesktop/manager.go

@@ -0,0 +1,251 @@
+package freedesktop
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"sync"
+
+	"github.com/godbus/dbus/v5"
+)
+
+func NewManager() (*Manager, error) {
+	systemConn, err := dbus.ConnectSystemBus()
+	if err != nil {
+		return nil, fmt.Errorf("failed to connect to system bus: %w", err)
+	}
+
+	sessionConn, err := dbus.ConnectSessionBus()
+	if err != nil {
+		sessionConn = nil
+	}
+
+	m := &Manager{
+		state: &FreedeskState{
+			Accounts: AccountsState{},
+			Settings: SettingsState{},
+		},
+		stateMutex:  sync.RWMutex{},
+		systemConn:  systemConn,
+		sessionConn: sessionConn,
+		currentUID:  uint64(os.Getuid()),
+		subscribers: make(map[string]chan FreedeskState),
+		subMutex:    sync.RWMutex{},
+	}
+
+	m.initializeAccounts()
+	m.initializeSettings()
+
+	return m, nil
+}
+
+func (m *Manager) initializeAccounts() error {
+	accountsManager := m.systemConn.Object(dbusAccountsDest, dbus.ObjectPath(dbusAccountsPath))
+
+	var userPath dbus.ObjectPath
+	err := accountsManager.Call(dbusAccountsInterface+".FindUserById", 0, int64(m.currentUID)).Store(&userPath)
+	if err != nil {
+		m.stateMutex.Lock()
+		m.state.Accounts.Available = false
+		m.stateMutex.Unlock()
+		return err
+	}
+
+	m.accountsObj = m.systemConn.Object(dbusAccountsDest, userPath)
+
+	m.stateMutex.Lock()
+	m.state.Accounts.Available = true
+	m.state.Accounts.UserPath = string(userPath)
+	m.state.Accounts.UID = m.currentUID
+	m.stateMutex.Unlock()
+
+	if err := m.updateAccountsState(); err != nil {
+		return fmt.Errorf("failed to update accounts state: %w", err)
+	}
+
+	return nil
+}
+
+func (m *Manager) initializeSettings() error {
+	if m.sessionConn == nil {
+		m.stateMutex.Lock()
+		m.state.Settings.Available = false
+		m.stateMutex.Unlock()
+		return fmt.Errorf("no session bus connection")
+	}
+
+	m.settingsObj = m.sessionConn.Object(dbusPortalDest, dbus.ObjectPath(dbusPortalPath))
+
+	var variant dbus.Variant
+	err := m.settingsObj.Call(dbusPortalSettingsInterface+".ReadOne", 0, "org.freedesktop.appearance", "color-scheme").Store(&variant)
+	if err != nil {
+		m.stateMutex.Lock()
+		m.state.Settings.Available = false
+		m.stateMutex.Unlock()
+		return err
+	}
+
+	m.stateMutex.Lock()
+	m.state.Settings.Available = true
+	m.stateMutex.Unlock()
+
+	if err := m.updateSettingsState(); err != nil {
+		return fmt.Errorf("failed to update settings state: %w", err)
+	}
+
+	return nil
+}
+
+func (m *Manager) updateAccountsState() error {
+	if !m.state.Accounts.Available || m.accountsObj == nil {
+		return fmt.Errorf("accounts service not available")
+	}
+
+	ctx := context.Background()
+	props, err := m.getAccountProperties(ctx)
+	if err != nil {
+		return err
+	}
+
+	m.stateMutex.Lock()
+	defer m.stateMutex.Unlock()
+
+	if v, ok := props["IconFile"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.IconFile = val
+		}
+	}
+	if v, ok := props["RealName"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.RealName = val
+		}
+	}
+	if v, ok := props["UserName"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.UserName = val
+		}
+	}
+	if v, ok := props["AccountType"]; ok {
+		if val, ok := v.Value().(int32); ok {
+			m.state.Accounts.AccountType = val
+		}
+	}
+	if v, ok := props["HomeDirectory"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.HomeDirectory = val
+		}
+	}
+	if v, ok := props["Shell"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.Shell = val
+		}
+	}
+	if v, ok := props["Email"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.Email = val
+		}
+	}
+	if v, ok := props["Language"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.Language = val
+		}
+	}
+	if v, ok := props["Location"]; ok {
+		if val, ok := v.Value().(string); ok {
+			m.state.Accounts.Location = val
+		}
+	}
+	if v, ok := props["Locked"]; ok {
+		if val, ok := v.Value().(bool); ok {
+			m.state.Accounts.Locked = val
+		}
+	}
+	if v, ok := props["PasswordMode"]; ok {
+		if val, ok := v.Value().(int32); ok {
+			m.state.Accounts.PasswordMode = val
+		}
+	}
+
+	return nil
+}
+
+func (m *Manager) updateSettingsState() error {
+	if !m.state.Settings.Available || m.settingsObj == nil {
+		return fmt.Errorf("settings portal not available")
+	}
+
+	var variant dbus.Variant
+	err := m.settingsObj.Call(dbusPortalSettingsInterface+".ReadOne", 0, "org.freedesktop.appearance", "color-scheme").Store(&variant)
+	if err != nil {
+		return err
+	}
+
+	if colorScheme, ok := variant.Value().(uint32); ok {
+		m.stateMutex.Lock()
+		m.state.Settings.ColorScheme = colorScheme
+		m.stateMutex.Unlock()
+	}
+
+	return nil
+}
+
+func (m *Manager) getAccountProperties(ctx context.Context) (map[string]dbus.Variant, error) {
+	var props map[string]dbus.Variant
+	err := m.accountsObj.CallWithContext(ctx, dbusPropsInterface+".GetAll", 0, dbusAccountsUserInterface).Store(&props)
+	if err != nil {
+		return nil, err
+	}
+	return props, nil
+}
+
+func (m *Manager) GetState() FreedeskState {
+	m.stateMutex.RLock()
+	defer m.stateMutex.RUnlock()
+	return *m.state
+}
+
+func (m *Manager) Subscribe(id string) chan FreedeskState {
+	ch := make(chan FreedeskState, 64)
+	m.subMutex.Lock()
+	m.subscribers[id] = ch
+	m.subMutex.Unlock()
+	return ch
+}
+
+func (m *Manager) Unsubscribe(id string) {
+	m.subMutex.Lock()
+	if ch, ok := m.subscribers[id]; ok {
+		close(ch)
+		delete(m.subscribers, id)
+	}
+	m.subMutex.Unlock()
+}
+
+func (m *Manager) NotifySubscribers() {
+	m.subMutex.RLock()
+	defer m.subMutex.RUnlock()
+
+	state := m.GetState()
+	for _, ch := range m.subscribers {
+		select {
+		case ch <- state:
+		default:
+		}
+	}
+}
+
+func (m *Manager) Close() {
+	m.subMutex.Lock()
+	for id, ch := range m.subscribers {
+		close(ch)
+		delete(m.subscribers, id)
+	}
+	m.subMutex.Unlock()
+
+	if m.systemConn != nil {
+		m.systemConn.Close()
+	}
+	if m.sessionConn != nil {
+		m.sessionConn.Close()
+	}
+}