// Fenrir console screen reader.
// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later

package emoji

import (
	"strings"
	"testing"

	"git.stormux.org/storm/fenrir/internal/i18n"
	"git.stormux.org/storm/fenrir/internal/interaction"
)

func TestCategorySelectionAndIndependentSearches(t *testing.T) {
	session, err := New_session()
	if err != nil {
		t.Fatal(err)
	}
	if _, _, ok := Selection(session); ok {
		t.Fatal("tab strip has a selection")
	}
	session.Handle(interaction.Key{Name: "tab"})
	session.Handle(interaction.Key{Text: "j"})
	session.Handle(interaction.Key{Name: "right"})
	if value, _, _ := Selection(session); value != "🇯🇵" {
		t.Fatal("filtered All navigation", value)
	}
	session.Handle(interaction.Key{Name: "tab"})
	session.Handle(interaction.Key{Name: "right"})
	session.Handle(interaction.Key{Name: "right"})
	session.Handle(interaction.Key{Name: "tab"})
	session.Handle(interaction.Key{Text: "c"})
	if value, _, _ := Selection(session); value != "🐱" {
		t.Fatal("Nature selection came from another tab", value)
	}
	session.Handle(interaction.Key{Name: "tab", Shift: true})
	session.Handle(interaction.Key{Name: "left"})
	session.Handle(interaction.Key{Name: "left"})
	session.Handle(interaction.Key{Name: "tab"})
	if value, _, _ := Selection(session); value != "🇯🇵" {
		t.Fatal("All search/selection not retained", value)
	}
	other, err := New_session()
	if err != nil {
		t.Fatal(err)
	}
	other.Handle(interaction.Key{Name: "tab"})
	control, controlOK := other.Focused_control()
	value, _, selectionOK := Selection(other)
	if !controlOK || control.Text != "" || !selectionOK || value == "🇯🇵" {
		t.Fatal("new session inherited previous search")
	}
}

func TestBundledTranslationSearchPreservesEmoji(t *testing.T) {
	previous := i18n.Use(i18n.New(t.TempDir(), "de"))
	t.Cleanup(func() { i18n.Use(previous) })
	session, err := New_session()
	if err != nil {
		t.Fatal(err)
	}
	if got := session.Open(); !strings.HasPrefix(got, "Emoji-Menü. Alle Registerkarte") {
		t.Fatal("untranslated picker", got)
	}
	session.Handle(interaction.Key{Name: "tab"})
	session.Handle(interaction.Key{Text: "Schmetter"})
	if value, label, ok := Selection(session); !ok || value != "🦋" || label != "Butterfly" {
		t.Fatalf("localized search changed identity: %q %q %v", value, label, ok)
	}
}

func TestExpandedCatalogCategoriesAndUniqueEmojiIDs(t *testing.T) {
	expectedCategories := map[string]bool{
		"activity": false,
		"travel":   false,
		"objects":  false,
	}
	emojiIDs := make(map[string]bool)
	presentationIDs := make(map[string]string)
	stripPresentation := strings.NewReplacer("\ufe0e", "", "\ufe0f", "")
	for _, category := range categories {
		if _, ok := expectedCategories[category.id]; ok {
			expectedCategories[category.id] = true
		}
		if category.id == "" || category.label == "" || len(category.choices) == 0 {
			t.Fatalf("invalid category %#v", category)
		}
		for _, choice := range category.choices {
			if choice.ID == "" || choice.Label == "" {
				t.Fatalf("invalid choice %#v", choice)
			}
			if emojiIDs[choice.ID] {
				t.Fatalf("duplicate emoji ID %q", choice.ID)
			}
			emojiIDs[choice.ID] = true
			// Text/emoji presentation selectors do not make a distinct emoji.
			presentationID := stripPresentation.Replace(choice.ID)
			if previous, ok := presentationIDs[presentationID]; ok {
				t.Fatalf("presentation-equivalent emoji IDs %q and %q", previous, choice.ID)
			}
			presentationIDs[presentationID] = choice.ID
		}
	}
	for id, found := range expectedCategories {
		if !found {
			t.Fatal("missing category", id)
		}
	}
	if len(emojiIDs) != 501 {
		t.Fatal("expanded catalog has the wrong size", len(emojiIDs))
	}
	if !emojiIDs["🐐"] || !emojiIDs["🎉"] {
		t.Fatal("goat or party popper emoji missing")
	}
}

func TestNewCategoryNavigation(t *testing.T) {
	session, err := New_session()
	if err != nil {
		t.Fatal(err)
	}
	for range 4 {
		session.Handle(interaction.Key{Name: "right"})
	}
	session.Handle(interaction.Key{Name: "tab"})
	if value, label, ok := Selection(session); !ok || value != "⚽" || label != "Soccer ball" {
		t.Fatalf("Activity navigation failed: %q %q %v", value, label, ok)
	}
}