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

package reader

import (
	"git.stormux.org/storm/fenrir/internal/i18n"
	"git.stormux.org/storm/fenrir/internal/presentation"
	"git.stormux.org/storm/fenrir/internal/screen"
	"strings"
	"time"
)

func (r *Reader) Configure_attributes(mode, format string) {
	// Configuration is the saved/quick-menu choice. Reapplying unchanged
	// settings must not overwrite the shortcut's temporary session state.
	if mode != r.attributeConfigured {
		r.attributeConfigured, r.attributeMode = mode, mode
		if mode != "" && mode != "none" {
			r.attributeResumeMode = mode
		}
	}
	r.attributeFormat = format
	r.review.Configure_attributes(format)
}

func (r *Reader) toggle_attributes() string {
	if r.attributeMode == "" || r.attributeMode == "none" {
		r.attributeMode = r.attributeResumeMode
		if r.attributeMode == "" {
			r.attributeMode = "beeps"
		}
		return i18n.T("announcement of attributes enabled")
	}
	r.attributeResumeMode, r.attributeMode = r.attributeMode, "none"
	return i18n.T("announcement of attributes disabled")
}

func (r *Reader) attribute_feedback(announce bool) *presentation.Message {
	attribute, valid := r.review.Attribute()
	if !valid {
		r.attributeKnown = false
		return nil
	}
	changed := r.attributeKnown && attribute != r.lastAttribute
	r.lastAttribute, r.attributeKnown = attribute, true
	if !announce || !changed || r.attributeMode == "" || r.attributeMode == "none" {
		return nil
	}
	// Presence tones describe emphasis; returning to defaults is described by
	// speech modes, but must not play a misleading has-attribute cue.
	if attribute.Default() && r.attributeMode == "beeps" {
		return nil
	}
	message := presentation.Attribute_message(attribute, r.attributeMode, r.attributeFormat)
	if attribute.Default() {
		message.Cue = ""
	}
	if message.Cue == "" && strings.TrimSpace(message.Text) == "" {
		return nil
	}
	return &message
}

func (r *Reader) automatic_attributes(previous, next screen.Snapshot, switched bool) *presentation.Message {
	if switched {
		r.attributeKnown = false
	}
	announce := !switched && next.Active && r.automatic && r.cursorEcho && r.trackingMode == "cursor" && !r.review.Active() && r.region_state().allows(next.X, next.Y, next.Cols, true, true)
	if announce && (previous.X != next.X || previous.Y != next.Y) {
		announce = !r.applicationInputAt.IsZero() && time.Since(r.applicationInputAt) < 300*time.Millisecond
	}
	return r.attribute_feedback(announce)
}