package advanced

import (
	"fmt"
	"strconv"
	"time"

	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

// AdvancedCLI provides command-line interface for advanced features management
type AdvancedCLI struct {
	manager    *AdvancedManager
	configPath string
	logger     *logrus.Logger
}

// NewAdvancedCLI creates a new advanced features CLI
func NewAdvancedCLI(configPath string, logger *logrus.Logger) *AdvancedCLI {
	return &AdvancedCLI{
		configPath: configPath,
		logger:     logger,
	}
}

// CreateRootCommand creates the root advanced features command
func (cli *AdvancedCLI) CreateRootCommand() *cobra.Command {
	rootCmd := &cobra.Command{
		Use:   "advanced",
		Short: "Debian Forge Advanced Features",
		Long:  "Manage multi-architecture support, advanced customization, and future-proofing",
		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
			return cli.initializeManager()
		},
	}

	// Add subcommands
	rootCmd.AddCommand(cli.createMultiArchCommand())
	rootCmd.AddCommand(cli.createCustomizationCommand())
	rootCmd.AddCommand(cli.createFutureProofCommand())
	rootCmd.AddCommand(cli.createConfigCommand())
	rootCmd.AddCommand(cli.createStatusCommand())

	return rootCmd
}

// initializeManager initializes the advanced features manager
func (cli *AdvancedCLI) initializeManager() error {
	// Load configuration
	config, err := LoadAdvancedConfig(cli.configPath)
	if err != nil {
		return fmt.Errorf("failed to load configuration: %w", err)
	}

	// Validate configuration
	configManager := &AdvancedConfigManager{configPath: cli.configPath, config: config}
	if err := configManager.ValidateConfig(); err != nil {
		return fmt.Errorf("configuration validation failed: %w", err)
	}

	// Create advanced features manager
	cli.manager = NewAdvancedManager(config, cli.logger)
	return nil
}

// createMultiArchCommand creates the multi-architecture command
func (cli *AdvancedCLI) createMultiArchCommand() *cobra.Command {
	multiArchCmd := &cobra.Command{
		Use:   "multiarch",
		Short: "Manage multi-architecture support",
		Long:  "Build multi-architecture images and manage architecture-specific optimizations",
	}

	// Build multi-arch image subcommand
	buildCmd := &cobra.Command{
		Use:   "build [architecture]",
		Short: "Build multi-architecture image",
		Long:  "Build an image for a specific architecture",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.buildMultiArchImage(args[0])
		},
	}

	// List architectures subcommand
	listArchsCmd := &cobra.Command{
		Use:   "list",
		Short: "List supported architectures",
		Long:  "List all supported architectures and their status",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listArchitectures()
		},
	}

	// List optimizations subcommand
	listOptsCmd := &cobra.Command{
		Use:   "optimizations",
		Short: "List architecture optimizations",
		Long:  "List all architecture-specific optimizations",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listOptimizations()
		},
	}

	// List builders subcommand
	listBuildersCmd := &cobra.Command{
		Use:   "builders",
		Short: "List architecture builders",
		Long:  "List all architecture-specific builders",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listBuilders()
		},
	}

	multiArchCmd.AddCommand(buildCmd, listArchsCmd, listOptsCmd, listBuildersCmd)
	return multiArchCmd
}

// createCustomizationCommand creates the customization command
func (cli *AdvancedCLI) createCustomizationCommand() *cobra.Command {
	customizationCmd := &cobra.Command{
		Use:   "customization",
		Short: "Manage advanced customization",
		Long:  "Apply kernel configurations, hardware optimizations, and partitioning schemes",
	}

	// Kernel configuration subcommand
	kernelCmd := &cobra.Command{
		Use:   "kernel [config] [target]",
		Short: "Apply kernel configuration",
		Long:  "Apply a kernel configuration to a target path",
		Args:  cobra.ExactArgs(2),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.applyKernelConfig(args[0], args[1])
		},
	}

	// Hardware optimization subcommand
	hardwareCmd := &cobra.Command{
		Use:   "hardware [optimization] [target]",
		Short: "Apply hardware optimization",
		Long:  "Apply a hardware optimization to a target path",
		Args:  cobra.ExactArgs(2),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.applyHardwareOptimization(args[0], args[1])
		},
	}

	// List kernel configs subcommand
	listKernelsCmd := &cobra.Command{
		Use:   "kernels",
		Short: "List kernel configurations",
		Long:  "List all available kernel configurations",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listKernelConfigs()
		},
	}

	// List hardware optimizations subcommand
	listHardwareCmd := &cobra.Command{
		Use:   "hardware",
		Short: "List hardware optimizations",
		Long:  "List all available hardware optimizations",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listHardwareOptimizations()
		},
	}

	// List partitioning schemes subcommand
	listPartitioningCmd := &cobra.Command{
		Use:   "partitioning",
		Short: "List partitioning schemes",
		Long:  "List all available partitioning schemes",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listPartitioningSchemes()
		},
	}

	// List bootloader configs subcommand
	listBootloadersCmd := &cobra.Command{
		Use:   "bootloaders",
		Short: "List bootloader configurations",
		Long:  "List all available bootloader configurations",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listBootloaderConfigs()
		},
	}

	customizationCmd.AddCommand(kernelCmd, hardwareCmd, listKernelsCmd, listHardwareCmd, listPartitioningCmd, listBootloadersCmd)
	return customizationCmd
}

// createFutureProofCommand creates the future-proofing command
func (cli *AdvancedCLI) createFutureProofCommand() *cobra.Command {
	futureProofCmd := &cobra.Command{
		Use:   "futureproof",
		Short: "Manage future-proofing",
		Long:  "Monitor emerging technologies, Debian versions, and upstream compatibility",
	}

	// Technology status subcommand
	techStatusCmd := &cobra.Command{
		Use:   "technology [id]",
		Short: "Show technology status",
		Long:  "Show status of an emerging technology",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showTechnologyStatus(args[0])
		},
	}

	// Debian version status subcommand
	debianStatusCmd := &cobra.Command{
		Use:   "debian [version]",
		Short: "Show Debian version status",
		Long:  "Show status of a Debian version",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showDebianVersionStatus(args[0])
		},
	}

	// Upstream compatibility subcommand
	upstreamCmd := &cobra.Command{
		Use:   "upstream [component]",
		Short: "Show upstream compatibility",
		Long:  "Show upstream compatibility status",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showUpstreamCompatibility(args[0])
		},
	}

	// Technology roadmap subcommand
	roadmapCmd := &cobra.Command{
		Use:   "roadmap [id]",
		Short: "Show technology roadmap",
		Long:  "Show technology roadmap and milestones",
		Args:  cobra.ExactArgs(1),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showTechnologyRoadmap(args[0])
		},
	}

	// List technologies subcommand
	listTechsCmd := &cobra.Command{
		Use:   "technologies",
		Short: "List emerging technologies",
		Long:  "List all emerging technologies",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listEmergingTechnologies()
		},
	}

	// List Debian versions subcommand
	listDebianVersionsCmd := &cobra.Command{
		Use:   "debian-versions",
		Short: "List Debian versions",
		Long:  "List all Debian versions and their status",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.listDebianVersions()
		},
	}

	futureProofCmd.AddCommand(techStatusCmd, debianStatusCmd, upstreamCmd, roadmapCmd, listTechsCmd, listDebianVersionsCmd)
	return futureProofCmd
}

// createConfigCommand creates the configuration command
func (cli *AdvancedCLI) createConfigCommand() *cobra.Command {
	configCmd := &cobra.Command{
		Use:   "config",
		Short: "Manage advanced features configuration",
		Long:  "View and modify advanced features configuration",
	}

	// Show configuration subcommand
	showCmd := &cobra.Command{
		Use:   "show",
		Short: "Show current configuration",
		Long:  "Show current advanced features configuration",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showConfig()
		},
	}

	// Update configuration subcommand
	updateCmd := &cobra.Command{
		Use:   "update [key] [value]",
		Short: "Update configuration",
		Long:  "Update a configuration value",
		Args:  cobra.ExactArgs(2),
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.updateConfig(args[0], args[1])
		},
	}

	// Validate configuration subcommand
	validateCmd := &cobra.Command{
		Use:   "validate",
		Short: "Validate configuration",
		Long:  "Validate current configuration",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.validateConfig()
		},
	}

	configCmd.AddCommand(showCmd, updateCmd, validateCmd)
	return configCmd
}

// createStatusCommand creates the status command
func (cli *AdvancedCLI) createStatusCommand() *cobra.Command {
	statusCmd := &cobra.Command{
		Use:   "status",
		Short: "Show advanced features status",
		Long:  "Show current status of advanced features systems",
		RunE: func(cmd *cobra.Command, args []string) error {
			return cli.showStatus()
		},
	}

	return statusCmd
}

// Multi-architecture methods
func (cli *AdvancedCLI) buildMultiArchImage(archID string) error {
	config := make(map[string]interface{})
	
	if err := cli.manager.multiArch.BuildMultiArchImage(archID, config); err != nil {
		return fmt.Errorf("multi-architecture image build failed: %w", err)
	}

	fmt.Printf("Multi-architecture image built successfully for: %s\n", archID)
	return nil
}

func (cli *AdvancedCLI) listArchitectures() error {
	fmt.Printf("Supported Architectures:\n")
	fmt.Printf("========================\n")
	
	for id, arch := range cli.manager.multiArch.architectures {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", arch.Name)
		fmt.Printf("    Description: %s\n", arch.Description)
		fmt.Printf("    Type: %s\n", arch.Type)
		fmt.Printf("    Endianness: %s\n", arch.Endianness)
		fmt.Printf("    Word Size: %d\n", arch.WordSize)
		fmt.Printf("    Supported: %t\n", arch.Supported)
		fmt.Printf("    Enabled: %t\n", arch.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

func (cli *AdvancedCLI) listOptimizations() error {
	fmt.Printf("Architecture Optimizations:\n")
	fmt.Printf("===========================\n")
	
	for id, opt := range cli.manager.multiArch.optimizations {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", opt.Name)
		fmt.Printf("    Description: %s\n", opt.Description)
		fmt.Printf("    Architecture: %s\n", opt.ArchID)
		fmt.Printf("    Type: %s\n", opt.Type)
		fmt.Printf("    Parameters: %v\n", opt.Parameters)
		fmt.Printf("    Enabled: %t\n", opt.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

func (cli *AdvancedCLI) listBuilders() error {
	fmt.Printf("Architecture Builders:\n")
	fmt.Printf("======================\n")
	
	for id, builder := range cli.manager.multiArch.builders {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", builder.Name)
		fmt.Printf("    Description: %s\n", builder.Description)
		fmt.Printf("    Architecture: %s\n", builder.ArchID)
		fmt.Printf("    Type: %s\n", builder.Type)
		fmt.Printf("    Builder Path: %s\n", builder.BuilderPath)
		fmt.Printf("    Config: %v\n", builder.Config)
		fmt.Printf("    Enabled: %t\n", builder.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

// Customization methods
func (cli *AdvancedCLI) applyKernelConfig(configID string, targetPath string) error {
	if err := cli.manager.customization.ApplyKernelConfig(configID, targetPath); err != nil {
		return fmt.Errorf("kernel configuration application failed: %w", err)
	}

	fmt.Printf("Kernel configuration applied successfully: %s to %s\n", configID, targetPath)
	return nil
}

func (cli *AdvancedCLI) applyHardwareOptimization(optID string, targetPath string) error {
	if err := cli.manager.customization.ApplyHardwareOptimization(optID, targetPath); err != nil {
		return fmt.Errorf("hardware optimization application failed: %w", err)
	}

	fmt.Printf("Hardware optimization applied successfully: %s to %s\n", optID, targetPath)
	return nil
}

func (cli *AdvancedCLI) listKernelConfigs() error {
	fmt.Printf("Kernel Configurations:\n")
	fmt.Printf("======================\n")
	
	for id, config := range cli.manager.customization.kernels {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", config.Name)
		fmt.Printf("    Description: %s\n", config.Description)
		fmt.Printf("    Version: %s\n", config.Version)
		fmt.Printf("    Config Path: %s\n", config.ConfigPath)
		fmt.Printf("    Modules: %v\n", config.Modules)
		fmt.Printf("    Parameters: %v\n", config.Parameters)
		fmt.Printf("    Enabled: %t\n", config.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

func (cli *AdvancedCLI) listHardwareOptimizations() error {
	fmt.Printf("Hardware Optimizations:\n")
	fmt.Printf("=======================\n")
	
	for id, opt := range cli.manager.customization.hardware {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", opt.Name)
		fmt.Printf("    Description: %s\n", opt.Description)
		fmt.Printf("    Hardware: %s\n", opt.Hardware)
		fmt.Printf("    Type: %s\n", opt.Type)
		fmt.Printf("    Config: %v\n", opt.Config)
		fmt.Printf("    Enabled: %t\n", opt.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

func (cli *AdvancedCLI) listPartitioningSchemes() error {
	fmt.Printf("Partitioning Schemes:\n")
	fmt.Printf("=====================\n")
	
	for id, scheme := range cli.manager.customization.partitioning {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", scheme.Name)
		fmt.Printf("    Description: %s\n", scheme.Description)
		fmt.Printf("    Type: %s\n", scheme.Type)
		fmt.Printf("    Layout: %s\n", scheme.Layout)
		fmt.Printf("    Partitions: %d\n", len(scheme.Partitions))
		fmt.Printf("    Enabled: %t\n", scheme.Enabled)
		
		if len(scheme.Partitions) > 0 {
			fmt.Printf("    Partition Details:\n")
			for _, partition := range scheme.Partitions {
				fmt.Printf("      %s: %s (%s) -> %s\n", partition.Name, partition.Size, partition.Format, partition.MountPoint)
			}
		}
		fmt.Printf("\n")
	}

	return nil
}

func (cli *AdvancedCLI) listBootloaderConfigs() error {
	fmt.Printf("Bootloader Configurations:\n")
	fmt.Printf("==========================\n")
	
	for id, config := range cli.manager.customization.bootloaders {
		fmt.Printf("  %s:\n", id)
		fmt.Printf("    Name: %s\n", config.Name)
		fmt.Printf("    Description: %s\n", config.Description)
		fmt.Printf("    Type: %s\n", config.Type)
		fmt.Printf("    Config Path: %s\n", config.ConfigPath)
		fmt.Printf("    Parameters: %v\n", config.Parameters)
		fmt.Printf("    Timeout: %d\n", config.Timeout)
		fmt.Printf("    Enabled: %t\n", config.Enabled)
		fmt.Printf("\n")
	}

	return nil
}

// Future-proofing methods
func (cli *AdvancedCLI) showTechnologyStatus(techID string) error {
	tech, err := cli.manager.futureProof.GetTechnologyStatus(techID)
	if err != nil {
		return fmt.Errorf("failed to get technology status: %w", err)
	}

	fmt.Printf("Technology: %s\n", tech.Name)
	fmt.Printf("============\n")
	fmt.Printf("  Description: %s\n", tech.Description)
	fmt.Printf("  Category: %s\n", tech.Category)
	fmt.Printf("  Status: %s\n", tech.Status)
	fmt.Printf("  Maturity: %s\n", tech.Maturity)
	fmt.Printf("  Integration: %v\n", tech.Integration)
	fmt.Printf("  Enabled: %t\n", tech.Enabled)

	return nil
}

func (cli *AdvancedCLI) showDebianVersionStatus(versionID string) error {
	version, err := cli.manager.futureProof.GetDebianVersionStatus(versionID)
	if err != nil {
		return fmt.Errorf("failed to get Debian version status: %w", err)
	}

	fmt.Printf("Debian Version: %s\n", version.Name)
	fmt.Printf("================\n")
	fmt.Printf("  Version: %s\n", version.Version)
	fmt.Printf("  Status: %s\n", version.Status)
	fmt.Printf("  Release Date: %v\n", version.ReleaseDate)
	fmt.Printf("  End of Life: %v\n", version.EndOfLife)
	fmt.Printf("  Features: %v\n", version.Features)
	fmt.Printf("  Enabled: %t\n", version.Enabled)

	return nil
}

func (cli *AdvancedCLI) showUpstreamCompatibility(componentID string) error {
	compat, err := cli.manager.futureProof.GetUpstreamCompatibility(componentID)
	if err != nil {
		return fmt.Errorf("failed to get upstream compatibility: %w", err)
	}

	fmt.Printf("Upstream Compatibility: %s\n", compat.Component)
	fmt.Printf("========================\n")
	fmt.Printf("  Version: %s\n", compat.Version)
	fmt.Printf("  Status: %s\n", compat.Status)
	fmt.Printf("  Compatibility: %s\n", compat.Compatibility)
	fmt.Printf("  Migration: %v\n", compat.Migration)
	fmt.Printf("  Enabled: %t\n", compat.Enabled)

	return nil
}

func (cli *AdvancedCLI) showTechnologyRoadmap(roadmapID string) error {
	roadmap, err := cli.manager.futureProof.GetTechnologyRoadmap(roadmapID)
	if err != nil {
		return fmt.Errorf("failed to get technology roadmap: %w", err)
	}

	fmt.Printf("Technology Roadmap: %s\n", roadmap.Name)
	fmt.Printf("====================\n")
	fmt.Printf("  Description: %s\n", roadmap.Description)
	fmt.Printf("  Timeline: %s\n", roadmap.Timeline)
	fmt.Printf("  Status: %s\n", roadmap.Status)
	fmt.Printf("  Milestones: %d\n", len(roadmap.Milestones))
	fmt.Printf("  Enabled: %t\n", roadmap.Enabled)
	
	if len(roadmap.Milestones) > 0 {
		fmt.Printf("\n  Milestones:\n")
		for _, milestone := range roadmap.Milestones {
			fmt.Printf("    %s: %s (%s) - %d%%\n", milestone.Name, milestone.Description, milestone.Status, milestone.Progress)
		}
	}

	return nil
}

func (cli *AdvancedCLI) listEmergingTechnologies() error {
	fmt.Printf("Emerging Technologies:\n")
	fmt.Printf("======================\n")
	
	for id, tech := range cli.manager.futureProof.technologies {
		fmt.Printf("  %s: %s (%s)\n", id, tech.Name, tech.Status)
	}

	return nil
}

func (cli *AdvancedCLI) listDebianVersions() error {
	fmt.Printf("Debian Versions:\n")
	fmt.Printf("================\n")
	
	for id, version := range cli.manager.futureProof.debianVersions {
		fmt.Printf("  %s: %s %s (%s)\n", id, version.Name, version.Version, version.Status)
	}

	return nil
}

// Configuration methods
func (cli *AdvancedCLI) showConfig() error {
	if cli.manager.config == nil {
		return fmt.Errorf("no configuration loaded")
	}

	fmt.Printf("Advanced Features Configuration:\n")
	fmt.Printf("================================\n")
	fmt.Printf("  Enabled: %t\n", cli.manager.config.Enabled)
	fmt.Printf("  Multi-Architecture: %t\n", cli.manager.config.MultiArch)
	fmt.Printf("  Customization: %t\n", cli.manager.config.Customization)
	fmt.Printf("  Future-Proofing: %t\n", cli.manager.config.FutureProof)
	
	if len(cli.manager.config.Metadata) > 0 {
		fmt.Printf("  Metadata:\n")
		for key, value := range cli.manager.config.Metadata {
			fmt.Printf("    %s: %s\n", key, value)
		}
	}

	return nil
}

func (cli *AdvancedCLI) updateConfig(key string, value string) error {
	configManager := &AdvancedConfigManager{configPath: cli.configPath, config: cli.manager.config}
	
	updates := make(map[string]interface{})
	
	// Parse value based on key type
	switch key {
	case "enabled", "multi_arch", "customization", "future_proof":
		if boolVal, err := strconv.ParseBool(value); err == nil {
			updates[key] = boolVal
		} else {
			return fmt.Errorf("invalid boolean value for %s: %s", key, value)
		}
	default:
		return fmt.Errorf("unknown configuration key: %s", key)
	}

	if err := configManager.UpdateConfig(updates); err != nil {
		return fmt.Errorf("failed to update configuration: %w", err)
	}

	fmt.Printf("Configuration updated: %s = %s\n", key, value)
	return nil
}

func (cli *AdvancedCLI) validateConfig() error {
	configManager := &AdvancedConfigManager{configPath: cli.configPath, config: cli.manager.config}
	
	if err := configManager.ValidateConfig(); err != nil {
		return fmt.Errorf("configuration validation failed: %w", err)
	}

	fmt.Printf("Configuration validation passed\n")
	return nil
}

// Status methods
func (cli *AdvancedCLI) showStatus() error {
	fmt.Printf("Advanced Features System Status:\n")
	fmt.Printf("================================\n")
	
	// Multi-architecture system status
	fmt.Printf("Multi-Architecture System:\n")
	fmt.Printf("  Status: Active\n")
	fmt.Printf("  Architectures: %d\n", len(cli.manager.multiArch.architectures))
	fmt.Printf("  Optimizations: %d\n", len(cli.manager.multiArch.optimizations))
	fmt.Printf("  Builders: %d\n", len(cli.manager.multiArch.builders))
	
	// Customization system status
	fmt.Printf("\nCustomization System:\n")
	fmt.Printf("  Status: Active\n")
	fmt.Printf("  Kernel Configs: %d\n", len(cli.manager.customization.kernels))
	fmt.Printf("  Hardware Optimizations: %d\n", len(cli.manager.customization.hardware))
	fmt.Printf("  Partitioning Schemes: %d\n", len(cli.manager.customization.partitioning))
	fmt.Printf("  Bootloader Configs: %d\n", len(cli.manager.customization.bootloaders))
	
	// Future-proofing system status
	fmt.Printf("\nFuture-Proofing System:\n")
	fmt.Printf("  Status: Active\n")
	fmt.Printf("  Emerging Technologies: %d\n", len(cli.manager.futureProof.technologies))
	fmt.Printf("  Debian Versions: %d\n", len(cli.manager.futureProof.debianVersions))
	fmt.Printf("  Upstream Compatibility: %d\n", len(cli.manager.futureProof.upstream))
	fmt.Printf("  Technology Roadmaps: %d\n", len(cli.manager.futureProof.roadmap))

	return nil
}