package main

import (
	"fmt"
	"os"
	"strings"

	"github.com/zemenawi/zutils/cmd"
	"github.com/zemenawi/zutils/pkg/colors"
	"github.com/zemenawi/zutils/pkg/types"
)

func main() {
	registry := types.NewCommandRegistry()

	registry.Register(&types.Command{
		Name:        "read",
		Description: "Read and display file with smart detection",
		Handler:     cmd.ReadCommand,
	})

	registry.Register(&types.Command{
		Name:        "sys",
		Description: "Display system information overview",
		Handler:     cmd.SystemCommand,
	})

	registry.Register(&types.Command{
		Name:        "find",
		Description: "Find files with pattern and filter support",
		Handler:     cmd.FindCommand,
	})

	registry.Register(&types.Command{
		Name:        "search",
		Description: "Search for text pattern in files",
		Handler:     cmd.SearchCommand,
	})

	registry.Register(&types.Command{
		Name:        "usage",
		Description: "Show resource usage for a process",
		Handler:     cmd.UsageCommand,
	})

	cmd.RegisterInfoCommands(registry)

	registry.Register(&types.Command{
		Name:        "ports",
		Description: "Show listening ports and processes using them",
		Handler:     cmd.PortsCommand,
	})

	registry.Register(&types.Command{
		Name:        "usages",
		Description: "Show all processes sorted by resource usage",
		Handler:     cmd.UsagesCommand,
	})

	registry.Register(&types.Command{
		Name:        "network",
		Description: "Show network information (IP, connections, DNS)",
		Handler:     cmd.NetworkCommand,
	})

	registry.Register(&types.Command{
		Name:        "junks",
		Description: "Find and clean junk files (caches, temporary files)",
		Handler:     cmd.JunksCommand,
	})

	registry.Register(&types.Command{
		Name:        "tree",
		Description: "Display directory tree with file sizes and gitignore support",
		Handler:     cmd.TreeCommand,
	})

	registry.Register(&types.Command{
		Name:        "version",
		Description: "Show version information",
		Handler:     cmd.VersionCommand,
	})

	args := os.Args[1:]

	if len(args) == 0 {
		printUsage(registry)
		os.Exit(1)
	}

	if args[0] == "info" {
		infoCmd, exists := registry.Get("info")
		if !exists {
			printUsage(registry)
			os.Exit(1)
		}
		err := infoCmd.Handler(args[1:])
		if err != nil {
			cmd.PrintErrorAndHelp("info", err)
			os.Exit(1)
		}
		return
	}

	commandName := args[0]
	cmdArgs := args[1:]

	if command, exists := registry.Get(commandName); exists {
		err := command.Handler(cmdArgs)
		if err != nil {
			cmd.PrintErrorAndHelp(commandName, err)
			os.Exit(1)
		}
	} else {
		fmt.Printf("\n  %sCommand not found: %s%s\n\n", colors.Red, args[0], colors.Reset)
		fmt.Printf("  Did you mean one of these?\n\n")
		suggestions := findSimilarCommands(args[0], registry.GetAll())
		for _, s := range suggestions {
			fmt.Printf("    %s%s%s - %s\n", colors.Yellow, s.Name, colors.Reset, s.Description)
		}
		fmt.Printf("\n")
		printUsage(registry)
		os.Exit(1)
	}
}

func printUsage(registry *types.CommandRegistry) {
	fmt.Printf("\n  %s%sz%s - User-friendly terminal utilities\n\n", colors.Bold, colors.Cyan, colors.Reset)
	fmt.Printf("  %sUsage:%s z <command> [arguments]\n\n", colors.Bold, colors.Reset)
	fmt.Printf("  %sAvailable Commands:%s\n", colors.Bold, colors.Reset)

	for _, command := range registry.GetAll() {
		fmt.Printf("    %s%-10s%s %s\n", colors.Green, command.Name, colors.Reset, command.Description)
	}

	fmt.Printf("\n  %sQuick Examples:%s\n", colors.Bold, colors.Reset)
	fmt.Printf("    %sz read README.md%s              # Display file with smart formatting\n", colors.Gray, colors.Reset)
	fmt.Printf("    %sz sys%s                         # Show system overview\n", colors.Gray, colors.Reset)
	fmt.Printf("    %sz find . -name '*.go'%s          # Find files\n", colors.Gray, colors.Reset)
	fmt.Printf("    %sz search pattern path%s          # Search in files\n", colors.Gray, colors.Reset)
	fmt.Printf("    %sz info .%s                       # Directory info with gitignore support\n", colors.Gray, colors.Reset)
	fmt.Printf("    %sz info main.go%s                 # File information\n", colors.Gray, colors.Reset)
	fmt.Printf("\n  Type %sz <command>%s without arguments to see help\n\n", colors.Gray, colors.Reset)
}

func findSimilarCommands(input string, commands []*types.Command) []*types.Command {
	var suggestions []*types.Command
	for _, cmd := range commands {
		if strings.HasPrefix(cmd.Name, input[:1]) {
			suggestions = append(suggestions, cmd)
		}
	}
	if len(suggestions) > 3 {
		suggestions = suggestions[:3]
	}
	return suggestions
}