// 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

	// The local-command modes: one colour each, carried by both the prompt
	// marker and the transcript entry so a run is recognisably the same thing
	// in both places.
	styLocalShell  lipgloss.Style
	styLocalPython 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 agents pane hangs off the right-hand edge, divided from the
	// transcript by a rule rather than boxed in: a full border beside a
	// transcript reads as a second window.
	styBar 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
)