package model

import (
	"testing"
)

func TestNewSubtitle(t *testing.T) {
	subtitle := NewSubtitle()
	
	if subtitle.Format != "" {
		t.Errorf("Expected empty format, got %s", subtitle.Format)
	}
	
	if subtitle.Title != "" {
		t.Errorf("Expected empty title, got %s", subtitle.Title)
	}
	
	if len(subtitle.Entries) != 0 {
		t.Errorf("Expected 0 entries, got %d", len(subtitle.Entries))
	}
	
	if subtitle.Metadata == nil {
		t.Error("Expected metadata map to be initialized")
	}
	
	if subtitle.Styles == nil {
		t.Error("Expected styles map to be initialized")
	}
}

func TestNewSubtitleEntry(t *testing.T) {
	entry := NewSubtitleEntry()
	
	if entry.Index != 0 {
		t.Errorf("Expected index 0, got %d", entry.Index)
	}
	
	if entry.StartTime.Hours != 0 || entry.StartTime.Minutes != 0 || 
	   entry.StartTime.Seconds != 0 || entry.StartTime.Milliseconds != 0 {
		t.Errorf("Expected zero start time, got %+v", entry.StartTime)
	}
	
	if entry.EndTime.Hours != 0 || entry.EndTime.Minutes != 0 || 
	   entry.EndTime.Seconds != 0 || entry.EndTime.Milliseconds != 0 {
		t.Errorf("Expected zero end time, got %+v", entry.EndTime)
	}
	
	if entry.Text != "" {
		t.Errorf("Expected empty text, got %s", entry.Text)
	}
	
	if entry.Metadata == nil {
		t.Error("Expected metadata map to be initialized")
	}
	
	if entry.Styles == nil {
		t.Error("Expected styles map to be initialized")
	}
	
	if entry.FormatData == nil {
		t.Error("Expected formatData map to be initialized")
	}
	
	if entry.Classes == nil {
		t.Error("Expected classes slice to be initialized")
	}
}

func TestNewSubtitleRegion(t *testing.T) {
	// Test with empty ID
	region := NewSubtitleRegion("")
	
	if region.ID != "" {
		t.Errorf("Expected empty ID, got %s", region.ID)
	}
	
	if region.Settings == nil {
		t.Error("Expected settings map to be initialized")
	}
	
	// Test with a specific ID
	testID := "region1"
	region = NewSubtitleRegion(testID)
	
	if region.ID != testID {
		t.Errorf("Expected ID %s, got %s", testID, region.ID)
	}
	
	// Verify the settings map is initialized and can store values
	region.Settings["width"] = "100%"
	region.Settings["lines"] = "3"
	
	if val, ok := region.Settings["width"]; !ok || val != "100%" {
		t.Errorf("Expected settings to contain width=100%%, got %s", val)
	}
	
	if val, ok := region.Settings["lines"]; !ok || val != "3" {
		t.Errorf("Expected settings to contain lines=3, got %s", val)
	}
}