tui

type Config struct {
	Runtime               *bus.SessionRuntime                     // required — the session bus runtime
	SessionStore          session.SessionStore                    // persistence backend (nil = no persistence)
	Session               *session.Session                        // session to resume (nil = fresh start)
	StartInSessionBrowser bool                                    // open the session browser before entering chat
	CWD                   string                                  // working directory for session metadata
	PinnedModels          []string                                // model IDs pre-pinned for Ctrl+P cycling
	OnPinnedModelsChange  func([]string) error                    // called when the user changes pinned models
	PromptTemplates       []promptpkg.Template                    // available prompt templates
	Transcriber           core.Transcriber                        // speech-to-text for voice input (nil = disabled)
	STTLanguage           string                                  // ISO-639-1 language hint for STT ("" = auto-detect)
	STTModel              string                                  // STT model id ("" = provider default)
	STTVocabulary         []string                                // words the transcriber tends to get wrong (names, jargon)
	CacheTTL              time.Duration                           // prompt-cache retention (Anthropic); drives the "cache cold" hint
	UsagePoller           *usage.Poller                           // plan usage poller (nil = usage tracking disabled)
	ProviderFactory       func(core.Model) (core.Provider, error) // one-shot LLM calls (auto-titling); nil disables
	ReleaseInfo           release.Info                            // build metadata shown immediately in the status line
	UpdateChecker         *release.Checker                        // optional stable-release checker
	UpdateCheckEnabled    bool                                    // false disables the asynchronous check
	MCPController         *mcp.Controller                         // shared MCP controller (nil = no MCP servers / picker hidden)
}

type FlatLayout struct{}

type Layout interface {
	RenderUserMessage(text string, width int, theme Theme) string
	RenderThinking(text string, width int, theme Theme) string
	RenderAssistantText(glamourRendered string, width int) string
	RenderToolBlock(block ToolBlockData, width int, theme Theme) string
	RenderError(text string, width int, theme Theme) string
	RenderStatus(text string, width int, theme Theme) string
	RenderLiveNotice(text string, width int, theme Theme) string
}

type Segment struct {
	Key      string // stable segment identifier, used for special rendering rules
	Text     string // rendered text (may include ANSI via lipgloss)
	Priority int    // sort order: lower = further left
}

type SplitLayout struct{}

type StatusLine struct {
	// contains filtered or unexported fields
}

type Theme struct {
	// Backgrounds (darkest → lightest)
	Base     lipgloss.Color
	Mantle   lipgloss.Color
	Crust    lipgloss.Color
	Surface0 lipgloss.Color
	Surface1 lipgloss.Color
	Surface2 lipgloss.Color

	// Text hierarchy (brightest → dimmest)
	Text     lipgloss.Color
	Subtext1 lipgloss.Color
	Subtext0 lipgloss.Color
	Overlay2 lipgloss.Color
	Overlay1 lipgloss.Color
	Overlay0 lipgloss.Color

	// Accents
	Rosewater lipgloss.Color
	Flamingo  lipgloss.Color
	Pink      lipgloss.Color
	Mauve     lipgloss.Color
	Red       lipgloss.Color
	Maroon    lipgloss.Color
	Peach     lipgloss.Color
	Yellow    lipgloss.Color
	Green     lipgloss.Color
	Teal      lipgloss.Color
	Sky       lipgloss.Color
	Sapphire  lipgloss.Color
	Blue      lipgloss.Color
	Lavender  lipgloss.Color
}

type ToolBlockData struct {
	ToolName   string
	Action     string // verb: "write", "bash", "read", "edit", "search", "fetch"
	Target     string // path, command, query
	Header     string // tail-truncation notice (above body) — may be empty
	Body       string // content — may be empty (e.g. running tool with no output yet)
	Footer     string // head-truncation notice (below body) — may be empty
	IsDiff     bool   // true when Body contains unified diff (color +/- lines)
	Done       bool
	IsError    bool
	IsRejected bool
	Note       string // optional note shown in footer area (feedback/reason)
	Generating bool   // true while LLM is streaming args (before execution)
}