// Package tui is a full-screen terminal front end built on Bubble Tea.
//
// It observes the same agent.Event stream the plain renderer does and answers
// the same approval.Prompt signature, so the dependency direction is unchanged:
// tui imports agent, never the reverse, and the eval runner still drives the
// loop with no terminal attached.
package tui

import "github.com/charmbracelet/lipgloss"

// The palette is a role, not a colour. Every value below is assigned by
// applyTheme in theme.go from the palette in force, so a style here can be
// read anywhere in the package without knowing which theme is on.
//
// The roles stay what they always were: one accent carries the identity and
// everything else is a grey at some distance from the text colour. Every
// colour is adaptive, because a palette tuned only for a dark terminal is the
// usual way a hand-rolled TUI becomes unreadable on a light one.
var (
	colCoral  lipgloss.AdaptiveColor // the accent, whatever hue the theme gives it
	colText   lipgloss.AdaptiveColor
	colUser   lipgloss.AdaptiveColor
	colDim    lipgloss.AdaptiveColor
	colFaint  lipgloss.AdaptiveColor
	colOK     lipgloss.AdaptiveColor
	colErr    lipgloss.AdaptiveColor
	colWarn   lipgloss.AdaptiveColor
	colBlue   lipgloss.AdaptiveColor
	colPillBg lipgloss.AdaptiveColor
)

var (
	styText  lipgloss.Style
	styDim   lipgloss.Style
	styFaint lipgloss.Style
	styCoral lipgloss.Style
	styBold  lipgloss.Style
	styErr   lipgloss.Style
	styWarn  lipgloss.Style
	styOK    lipgloss.Style

	// The transcript's grammar: every turn of events opens with a dot, and
	// anything hanging off it is indented under that dot.
	styUserMark lipgloss.Style
	styUserText lipgloss.Style
	styToolDot  lipgloss.Style
	styTextDot  lipgloss.Style
	styErrDot   lipgloss.Style
	styToolName lipgloss.Style
	styToolArgs lipgloss.Style
	styResult   lipgloss.Style

	styDiffAdd  lipgloss.Style
	styDiffDel  lipgloss.Style
	styDiffHunk lipgloss.Style
	styDiffHead lipgloss.Style

	styName    lipgloss.Style
	styPill    lipgloss.Style
	styKey     lipgloss.Style
	styHeading lipgloss.Style

	// The input frame is the only always-present chrome, so it carries the
	// mode: the accent when it is yours to type into, faint while the agent
	// has it.
	styBoxFocus lipgloss.Style
	styBoxBlur  lipgloss.Style

	// The approval box is the one place the UI is allowed to shout: it is the
	// only moment a human has to decide something.
	styModal lipgloss.Style
)