// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package app

import (
	"git.stormux.org/storm/cthulhu/internal/atspi"
	"git.stormux.org/storm/cthulhu/internal/input"
)

// A submission can clear an entry before its message appears in a transcript.
// Do not mistake that clear for an editing command. Unknown input/caret data,
// other controls and selected-text replacement keep their existing feedback.
func (state *eventLoopState) submitted_text_clear(event atspi.Event, activity input.Activity) bool {
	source := event.Source
	if event.Type != atspi.TextDeletedEvent || event.Payload == "" || event.Detail1 != 0 ||
		!activity.PlainEnter || activity.Sequence == 0 || !atspi.IsEchoEditField(source) ||
		(source.Role != "text" && source.Role != "entry") || source.Autocomplete || source.LiveRegion ||
		source.ID() != state.focusedID || !source.TextCaretKnown || source.BrailleCaret != 0 ||
		source.BrailleLineStart != 0 || source.Text != "" || source.TextBeforeCaret != "" || source.BrailleLine != "" ||
		source.SelectionEnd > source.SelectionStart {
		return false
	}
	if state.selection.id == source.ID() && state.selection.end > state.selection.start {
		return false
	}
	// Some providers report selection removal before the deletion itself.
	return state.selectionCaretID != source.ID() || state.selectionCaretSequence != activity.Sequence
}