package main

import (
	"fmt"
	"log"

	"hosts-go/internal/core"
)

func main() {
	fmt.Println("hosts-go - Foundation Implementation")
	fmt.Println("===================================")

	// Create a new hosts file
	hostsFile := core.NewHostsFile()

	// Add some example entries to demonstrate the foundation
	entry1, err := core.NewHostEntry("127.0.0.1", "localhost")
	if err != nil {
		log.Fatalf("Failed to create entry: %v", err)
	}
	entry1.Comment = "Local loopback"

	entry2, err := core.NewHostEntry("192.168.1.100", "dev.example.com")
	if err != nil {
		log.Fatalf("Failed to create entry: %v", err)
	}
	entry2.AddAlias("www.dev.example.com")
	entry2.AddAlias("api.dev.example.com")
	entry2.Comment = "Development server"

	entry3, err := core.NewHostEntry("10.0.0.50", "staging.example.com")
	if err != nil {
		log.Fatalf("Failed to create entry: %v", err)
	}
	entry3.Active = false // Inactive entry
	entry3.Comment = "Staging server (disabled)"

	// Add entries to hosts file
	hostsFile.AddEntry(entry1)
	hostsFile.AddEntry(entry2)
	hostsFile.AddEntry(entry3)

	// Demonstrate the foundation functionality
	fmt.Printf("Total entries: %d\n", len(hostsFile.Entries))
	fmt.Printf("Active entries: %d\n", len(hostsFile.ActiveEntries()))
	fmt.Println()

	fmt.Println("All entries:")
	for i, entry := range hostsFile.Entries {
		fmt.Printf("%d. %s\n", i+1, entry.String())
	}
	fmt.Println()

	fmt.Println("Active entries only:")
	for i, entry := range hostsFile.ActiveEntries() {
		fmt.Printf("%d. %s\n", i+1, entry.String())
	}
	fmt.Println()

	// Demonstrate search functionality
	fmt.Println("Search demonstrations:")
	if found := hostsFile.FindEntry("localhost"); found != nil {
		fmt.Printf("Found 'localhost': %s\n", found.String())
	}
	
	if found := hostsFile.FindEntry("www.dev.example.com"); found != nil {
		fmt.Printf("Found 'www.dev.example.com' (alias): %s\n", found.String())
	}

	if found := hostsFile.FindEntry("notfound.com"); found == nil {
		fmt.Println("'notfound.com' not found (as expected)")
	}

	fmt.Println()
	fmt.Println("Foundation implementation complete!")
	fmt.Println("✅ Core data models working")
	fmt.Println("✅ Validation system working") 
	fmt.Println("✅ Host entry management working")
	fmt.Println("✅ Search and filtering working")
	fmt.Println()
	fmt.Println("Next steps: Implement hosts file parser and TUI components")
}