package display

import (
	"testing"

	"github.com/lerko/nib/internal/db"
)

func TestDisplayGlyph_Fluid(t *testing.T) {
	tests := []struct {
		glyph db.Glyph
		want  string
	}{
		{db.GlyphNote, "—"},
		{db.GlyphTodo, "○"},
		{db.GlyphEvent, "◇"},
	}
	for _, tt := range tests {
		got := DisplayGlyph(tt.glyph, nil)
		if got != tt.want {
			t.Errorf("DisplayGlyph(%q, nil) = %q, want %q", tt.glyph, got, tt.want)
		}
	}
}

func TestDisplayGlyph_Card(t *testing.T) {
	tests := []struct {
		cardType db.CardType
		want     string
	}{
		{db.CardSnippet, "◆"},
		{db.CardTemplate, "◈"},
		{db.CardChecklist, "☐"},
		{db.CardDecision, "⚖"},
		{db.CardLink, "↗"},
	}
	for _, tt := range tests {
		ct := tt.cardType
		got := DisplayGlyph(db.GlyphNote, &ct)
		if got != tt.want {
			t.Errorf("DisplayGlyph(note, %q) = %q, want %q", tt.cardType, got, tt.want)
		}
	}
}

func TestDisplayGlyph_CardOverridesGlyph(t *testing.T) {
	ct := db.CardSnippet
	got := DisplayGlyph(db.GlyphTodo, &ct)
	if got != "◆" {
		t.Errorf("card_type should override glyph, got %q", got)
	}
}

func TestDisplayGlyph_UnknownFallback(t *testing.T) {
	got := DisplayGlyph(db.Glyph("unknown"), nil)
	if got != "—" {
		t.Errorf("unknown glyph should fall back to —, got %q", got)
	}
}

func TestFormatID_Long(t *testing.T) {
	got := FormatID("01HXYZ1234567890ABCDEFGH")
	if got != "01HXYZ123456" {
		t.Errorf("expected 12-char truncation, got %q", got)
	}
}

func TestFormatID_Short(t *testing.T) {
	got := FormatID("ABC")
	if got != "ABC" {
		t.Errorf("short ID should pass through, got %q", got)
	}
}

func TestFormatID_Exact12(t *testing.T) {
	got := FormatID("123456789012")
	if got != "123456789012" {
		t.Errorf("exact 12-char should pass through, got %q", got)
	}
}