More monior TUI refactor/cleanup

`tui/tui.go` is no longer responsible for passing window resize updates
to all views, instead we request a new window size message to be sent at
the same time we enter the view, allowing the view to catch and handle
it.

Add `Initialized` to `tui/shared/View` model, now we only call
`Init` on a view before entering it for the first time, rather than
calling `Init` on all views when the application starts.

Renames file, small cleanups

pkg/tui/views/chat/cmds.go

@@ -9,39 +9,9 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 )
 
-func (m *Model) setMessage(i int, msg api.Message) {
-	if i >= len(m.App.Messages) {
-		panic("i out of range")
-	}
-	m.App.Messages[i] = msg
-	m.messageCache[i] = m.renderMessage(i)
-}
-
-func (m *Model) addMessage(msg api.Message) {
-	m.App.Messages = append(m.App.Messages, msg)
-	m.messageCache = append(m.messageCache, m.renderMessage(len(m.App.Messages)-1))
-}
-
-func (m *Model) setMessageContents(i int, content string) {
-	if i >= len(m.App.Messages) {
-		panic("i out of range")
-	}
-	m.App.Messages[i].Content = content
-	m.messageCache[i] = m.renderMessage(i)
-}
-
-func (m *Model) rebuildMessageCache() {
-	m.messageCache = make([]string, len(m.App.Messages))
-	for i := range m.App.Messages {
-		m.messageCache[i] = m.renderMessage(i)
-	}
-}
-
-func (m *Model) updateContent() {
-	atBottom := m.content.AtBottom()
-	m.content.SetContent(m.conversationMessagesView())
-	if atBottom {
-		m.content.GotoBottom()
+func (m *Model) waitForResponseChunk() tea.Cmd {
+	return func() tea.Msg {
+		return msgChatResponseChunk(<-m.chatReplyChunks)
 	}
 }
 
@@ -97,6 +67,7 @@ func (m *Model) updateMessageContent(message *api.Message) tea.Cmd {
 
 func (m *Model) cycleSelectedRoot(conv *api.Conversation, dir model.MessageCycleDirection) tea.Cmd {
 	if len(m.App.RootMessages) < 2 {
+
 		return nil
 	}
 
@@ -153,11 +124,9 @@ func (m *Model) promptLLM() tea.Cmd {
 
 	return func() tea.Msg {
 		resp, err := m.App.PromptLLM(m.App.Messages, m.chatReplyChunks, m.stopSignal)
-
 		if err != nil {
 			return msgChatResponseError(err)
 		}
-
 		return msgChatResponse(resp)
 	}
 }

pkg/tui/views/chat/update.go

@@ -11,19 +11,39 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 )
 
-func (m *Model) HandleResize(width, height int) {
-	m.Width, m.Height = width, height
-	m.content.Width = width
-	m.input.SetWidth(width - m.input.FocusedStyle.Base.GetHorizontalFrameSize())
-	if len(m.App.Messages) > 0 {
-		m.rebuildMessageCache()
-		m.updateContent()
+func (m *Model) setMessage(i int, msg api.Message) {
+	if i >= len(m.App.Messages) {
+		panic("i out of range")
+	}
+	m.App.Messages[i] = msg
+	m.messageCache[i] = m.renderMessage(i)
+}
+
+func (m *Model) addMessage(msg api.Message) {
+	m.App.Messages = append(m.App.Messages, msg)
+	m.messageCache = append(m.messageCache, m.renderMessage(len(m.App.Messages)-1))
+}
+
+func (m *Model) setMessageContents(i int, content string) {
+	if i >= len(m.App.Messages) {
+		panic("i out of range")
+	}
+	m.App.Messages[i].Content = content
+	m.messageCache[i] = m.renderMessage(i)
+}
+
+func (m *Model) rebuildMessageCache() {
+	m.messageCache = make([]string, len(m.App.Messages))
+	for i := range m.App.Messages {
+		m.messageCache[i] = m.renderMessage(i)
 	}
 }
 
-func (m *Model) waitForResponseChunk() tea.Cmd {
-	return func() tea.Msg {
-		return msgChatResponseChunk(<-m.chatReplyChunks)
+func (m *Model) updateContent() {
+	atBottom := m.content.AtBottom()
+	m.content.SetContent(m.conversationMessagesView())
+	if atBottom {
+		m.content.GotoBottom()
 	}
 }
 
@@ -31,7 +51,13 @@ func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
 	var cmds []tea.Cmd
 	switch msg := msg.(type) {
 	case tea.WindowSizeMsg:
-		m.HandleResize(msg.Width, msg.Height)
+		m.Width, m.Height = msg.Width, msg.Height
+		m.content.Width = msg.Width
+		m.input.SetWidth(msg.Width - m.input.FocusedStyle.Base.GetHorizontalFrameSize())
+		if len(m.App.Messages) > 0 {
+			m.rebuildMessageCache()
+			m.updateContent()
+		}
 	case shared.MsgViewEnter:
 		// wake up spinners and cursors
 		cmds = append(cmds, cursor.Blink, m.spinner.Tick)