feat: implement copy/paste with blank button support

purplefish32 · purplefish32 · commit a4f0951a6830 · 2025-01-10T02:06:00.000+01:00
This commit adds comprehensive copy/paste functionality including:

1. Copy/paste of regular buttons with confirmation dialog
2. Support for copying and pasting blank buttons
3. Confirmation dialog when overwriting existing buttons
4. Proper handling of button blanking via KV store
5. Centralized dialog styles in styles.go
6. Improved error handling and logging
7. Updated help text with new commands

The changes allow users to:
- Copy any button (including blank ones) with 'c'
- Paste with 'v', with confirmation when overwriting
- Blank buttons by copying a blank and pasting over existing
diff --git a/cmd/tui/main.go b/cmd/tui/main.go
@@ -314,10 +314,16 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 					key := fmt.Sprintf("instances.%s.devices.%s.profiles.%s.pages.%s.buttons.%s",
 						m.currentInstance, m.currentDevice, m.currentProfile, m.currentPage, m.selectedPosition)
 
-					if button, err := buttons.GetButton(key); err == nil {
-						if data, err := json.Marshal(button); err == nil {
-							m.buttonClipboard = string(data)
-							log.Debug().Str("copied_button", m.selectedPosition).Msg("Button copied")
+					// If button doesn't exist, store empty string to represent a blank button
+					if _, err := buttons.GetButton(key); err != nil {
+						m.buttonClipboard = "{}"
+						log.Debug().Str("copied_button", m.selectedPosition).Msg("Copied blank button")
+					} else {
+						if button, err := buttons.GetButton(key); err == nil {
+							if data, err := json.Marshal(button); err == nil {
+								m.buttonClipboard = string(data)
+								log.Debug().Str("copied_button", m.selectedPosition).Msg("Button copied")
+							}
 						}
 					}
 				}
@@ -326,14 +332,28 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 					key := fmt.Sprintf("instances.%s.devices.%s.profiles.%s.pages.%s.buttons.%s",
 						m.currentInstance, m.currentDevice, m.currentProfile, m.currentPage, m.selectedPosition)
 
-					_, kv := natsconn.GetNATSConn()
-					// Only show confirmation if button exists
-					if _, err := buttons.GetButton(key); err == nil {
-						m.showPasteConfirmation = true
+					// Check if we're pasting a blank button
+					if m.buttonClipboard == "{}" {
+						// Only show confirmation if there's an existing button
+						if _, err := buttons.GetButton(key); err == nil {
+							m.showPasteConfirmation = true
+						} else {
+							// No existing button, no need to confirm
+							_, kv := natsconn.GetNATSConn()
+							if err := kv.Delete(key); err == nil {
+								kv.Delete(key + ".buffer")
+								log.Debug().Str("blanked_button", m.selectedPosition).Msg("Button blanked")
+							}
+						}
 					} else {
-						// No existing button, paste directly
-						if _, err := kv.Put(key, []byte(m.buttonClipboard)); err == nil {
-							log.Debug().Str("pasted_button", m.selectedPosition).Msg("Button pasted")
+						// Normal paste logic for non-blank buttons
+						_, kv := natsconn.GetNATSConn()
+						if _, err := buttons.GetButton(key); err == nil {
+							m.showPasteConfirmation = true
+						} else {
+							if _, err := kv.Put(key, []byte(m.buttonClipboard)); err == nil {
+								log.Debug().Str("pasted_button", m.selectedPosition).Msg("Button pasted")
+							}
 						}
 					}
 				}
@@ -372,6 +392,35 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		}
 	}
 
+	if m.showPasteConfirmation {
+		if msg, ok := msg.(tea.KeyMsg); ok {
+			switch msg.String() {
+			case "y", "enter":
+				key := fmt.Sprintf("instances.%s.devices.%s.profiles.%s.pages.%s.buttons.%s",
+					m.currentInstance, m.currentDevice, m.currentProfile, m.currentPage, m.selectedPosition)
+				_, kv := natsconn.GetNATSConn()
+
+				// If we're pasting a blank button, delete instead of put
+				if m.buttonClipboard == "{}" {
+					if err := kv.Delete(key); err == nil {
+						kv.Delete(key + ".buffer")
+						log.Debug().Str("blanked_button", m.selectedPosition).Msg("Button blanked")
+					}
+				} else {
+					if _, err := kv.Put(key, []byte(m.buttonClipboard)); err == nil {
+						log.Debug().Str("pasted_button", m.selectedPosition).Msg("Button pasted")
+					}
+				}
+				m.showPasteConfirmation = false
+				return m, nil
+			case "n", "esc":
+				m.showPasteConfirmation = false
+				return m, nil
+			}
+			return m, nil // Ignore all other keys when paste dialog is open
+		}
+	}
+
 	return m, cmd
 }
 
