package commands

import (
	"fmt"

	"github.com/charmbracelet/lipgloss"
	"github.com/nutcas3/telecom-platform/apps/cli/internal/types"
	"github.com/nutcas3/telecom-platform/apps/cli/internal/ui"
)

func HandleSubscribersEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) == 0 {
		showSubscribersEnhancedHelp()
		return nil
	}

	command := args[0]
	commandArgs := args[1:]

	switch command {
	case "list":
		return listSubscribersEnhanced(commandArgs, config)
	case "show":
		return showSubscriberEnhanced(commandArgs, config)
	case "create":
		return createSubscriberEnhanced(commandArgs, config)
	case "update":
		return updateSubscriberEnhanced(commandArgs, config)
	case "delete":
		return deleteSubscriberEnhanced(commandArgs, config)
	case "activate":
		return activateSubscriberEnhanced(commandArgs, config)
	case "deactivate":
		return deactivateSubscriberEnhanced(commandArgs, config)
	case "balance":
		return checkBalanceEnhanced(commandArgs, config)
	case "usage":
		return showUsageEnhanced(commandArgs, config)
	case "search":
		return searchSubscribersEnhanced(commandArgs, config)
	default:
		fmt.Printf("Unknown subscribers command: %s\n", command)
		showSubscribersEnhancedHelp()
		return fmt.Errorf("unknown command: %s", command)
	}
}

func showSubscribersEnhancedHelp() {
	fmt.Println("Enhanced Subscriber Management")
	fmt.Println("Usage: telecom-cli subscribers <command> [options]")
	fmt.Println()
	fmt.Println("Available commands:")
	fmt.Println("  list                    - List all subscribers (with filtering)")
	fmt.Println("  show <imsi>            - Show subscriber details")
	fmt.Println("  create <imsi> <name>   - Create a new subscriber")
	fmt.Println("  update <imsi>          - Update subscriber information")
	fmt.Println("  delete <imsi>          - Delete a subscriber")
	fmt.Println("  activate <imsi>       - Activate subscriber")
	fmt.Println("  deactivate <imsi>     - Deactivate subscriber")
	fmt.Println("  balance <imsi>        - Check subscriber balance")
	fmt.Println("  usage <imsi>           - Show usage statistics")
	fmt.Println("  search <query>         - Search subscribers")
	fmt.Println()
	fmt.Println("Global options:")
	fmt.Println("  --format <format>      Output format (table, json, yaml)")
	fmt.Println("  --filter <filter>     Filter results")
	fmt.Println("  --sort <field>         Sort by field")
	fmt.Println("  --limit <count>        Limit results")
}

func listSubscribersEnhanced(args []string, config *types.CLIConfig) error {
	// Initialize UI components
	colorizer := ui.NewColorizer(!config.NoColor)
	iconRenderer := ui.NewIconRenderer(true, true)

	// Print header with lipgloss styling
	header := lipgloss.JoinHorizontal(lipgloss.Left,
		colorizer.Header("Telecom Platform"),
		colorizer.Info("Subscribers"),
		colorizer.Muted(fmt.Sprintf("(Profile: %s, Endpoint: %s)", config.Profile, config.APIEndpoint)),
	)
	fmt.Println(header)

	// Parse options
	format := "table"
	filter := ""
	sort := "name"
	limit := 50

	for i := 0; i < len(args); i++ {
		switch args[i] {
		case "--format":
			if i+1 < len(args) {
				format = args[i+1]
				i++
			}
		case "--filter":
			if i+1 < len(args) {
				filter = args[i+1]
				i++
			}
		case "--sort":
			if i+1 < len(args) {
				sort = args[i+1]
				i++
			}
		case "--limit":
			if i+1 < len(args) {
				limit = parseInt(args[i+1])
				i++
			}
		}
	}

	if config.Verbose {
		debugInfo := lipgloss.JoinHorizontal(lipgloss.Left,
			colorizer.Debug("Debug"),
			colorizer.Option("Format: "+format),
			colorizer.Option("Filter: "+filter),
			colorizer.Option("Sort: "+sort),
			colorizer.Option(fmt.Sprintf("Limit: %d", limit)),
		)
		fmt.Println(debugInfo)
	}

	// Create styled table with lipgloss
	table := ui.NewSubscribersTable(colorizer, iconRenderer)

	// Add rows with lipgloss styling
	subscribers := []struct {
		imsi         string
		name         string
		status       string
		balance      string
		plan         string
		lastActivity string
	}{
		{"310260123456789", "John Doe", "active", "$45.67", "Premium", "2024-01-15 16:45"},
		{"310260123456790", "Jane Smith", "active", "$123.45", "Business", "2024-01-15 16:30"},
		{"310260123456791", "Bob Johnson", "inactive", "$0.00", "Basic", "2024-01-14 12:15"},
		{"310260123456792", "Alice Brown", "active", "$89.23", "Premium", "2024-01-15 15:20"},
		{"310260123456793", "Charlie Davis", "active", "$234.56", "Enterprise", "2024-01-15 14:10"},
	}

	for _, sub := range subscribers {
		statusIcon := iconRenderer.StatusColored(sub.status, colorizer)
		balanceStyle := lipgloss.NewStyle()
		if sub.status == "active" {
			balanceStyle = ui.StyleSuccess.Style
		} else {
			balanceStyle = ui.StyleMuted.Style
		}

		table.AddStyledCellRow(
			ui.TableCell{Text: statusIcon, Align: "center"},
			ui.TableCell{Text: sub.imsi},
			ui.TableCell{Text: sub.name},
			ui.TableCell{Text: iconRenderer.StatusColored(sub.status, colorizer), Align: "center"},
			ui.TableCell{Text: sub.balance, Style: balanceStyle, Align: "right"},
			ui.TableCell{Text: sub.plan},
			ui.TableCell{Text: sub.lastActivity, Align: "center"},
		)
	}

	// Render the table
	fmt.Println(table.Render())

	// Add summary with lipgloss styling
	activeCount := 4
	inactiveCount := 1
	summary := lipgloss.JoinHorizontal(lipgloss.Left,
		colorizer.Info("Summary:"),
		colorizer.Success(fmt.Sprintf("%d active", activeCount)),
		colorizer.Error(fmt.Sprintf("%d inactive", inactiveCount)),
	)
	fmt.Printf("\n%s\n", summary)

	return nil
}

func showSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers show <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Subscriber Details: IMSI=%s (Profile: %s)\n", imsi, config.Profile)

	fmt.Println("=========================================")
	fmt.Printf("IMSI:        %s\n", imsi)
	fmt.Printf("Name:        John Doe\n")
	fmt.Printf("Status:      Active\n")
	fmt.Printf("Plan:        Premium\n")
	fmt.Printf("Balance:     $45.67\n")
	fmt.Printf("Since:       2023-06-15\n")
	fmt.Println()
	fmt.Println("Usage Statistics:")
	fmt.Printf("Data Used:   2.3GB / 10GB (23%%)\n")
	fmt.Printf("Voice Used:  45min / 500min (9%%)\n")
	fmt.Printf("SMS Used:    23 / 100 (23%%)\n")
	fmt.Println()
	fmt.Println("Recent Activity:")
	fmt.Println("2024-01-15 16:45 - Data session: 45MB")
	fmt.Println("2024-01-15 16:30 - Voice call: 5min")
	fmt.Println("2024-01-15 16:15 - SMS sent: 2 messages")
	fmt.Println("2024-01-15 15:20 - Data session: 120MB")

	return nil
}

func createSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 2 {
		fmt.Println("Error: IMSI and name are required")
		fmt.Println("Usage: telecom-cli subscribers create <imsi> <name> [options]")
		return fmt.Errorf("missing required arguments")
	}

	imsi := args[0]
	name := args[1]

	// Parse additional options
	plan := "Basic"
	balance := 0.0

	for i := 2; i < len(args); i++ {
		switch args[i] {
		case "--plan":
			if i+1 < len(args) {
				plan = args[i+1]
				i++
			}
		case "--balance":
			if i+1 < len(args) {
				balance = parseFloat(args[i+1])
				i++
			}
		}
	}

	fmt.Printf("Creating subscriber (Profile: %s):\n", config.Profile)
	fmt.Printf("  IMSI:    %s\n", imsi)
	fmt.Printf("  Name:    %s\n", name)
	fmt.Printf("  Plan:    %s\n", plan)
	fmt.Printf("  Balance: $%.2f\n", balance)

	if config.Verbose {
		fmt.Println("Connecting to API...")
		fmt.Printf("POST %s/api/subscribers\n", config.APIEndpoint)
	}

	fmt.Println("Subscriber created successfully!")
	fmt.Printf("Subscriber ID: %s\n", imsi)
	fmt.Printf("Account created with initial balance: $%.2f\n", balance)

	return nil
}

func updateSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers update <imsi> [options]")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Updating subscriber: IMSI=%s (Profile: %s)\n", imsi, config.Profile)
	fmt.Println("Subscriber updated successfully!")

	return nil
}

func deleteSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers delete <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Deleting subscriber: IMSI=%s (Profile: %s)\n", imsi, config.Profile)
	fmt.Println("Subscriber deleted successfully!")

	return nil
}

func activateSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers activate <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Activating subscriber: IMSI=%s (Profile: %s)\n", imsi, config.Profile)
	fmt.Println("Subscriber activated successfully!")

	return nil
}

func deactivateSubscriberEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers deactivate <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Deactivating subscriber: IMSI=%s (Profile: %s)\n", imsi, config.Profile)
	fmt.Println("Subscriber deactivated successfully!")

	return nil
}

func checkBalanceEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers balance <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Balance for subscriber IMSI=%s (Profile: %s):\n", imsi, config.Profile)
	fmt.Printf("Current Balance: $45.67\n")
	fmt.Printf("Last Top-up: $50.00 on 2024-01-10\n")
	fmt.Printf("Monthly Usage: $12.33\n")
	fmt.Printf("Available Credit: $33.34\n")

	return nil
}

func showUsageEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: IMSI is required")
		fmt.Println("Usage: telecom-cli subscribers usage <imsi>")
		return fmt.Errorf("missing IMSI")
	}

	imsi := args[0]
	fmt.Printf("Usage Statistics for IMSI=%s (Profile: %s):\n", imsi, config.Profile)

	fmt.Println("Current Billing Period (2024-01)")
	fmt.Println("Data Usage:")
	fmt.Printf("  Used:     2.3GB\n")
	fmt.Printf("  Limit:    10GB\n")
	fmt.Printf("  Remaining: 7.7GB\n")
	fmt.Println()
	fmt.Println("Voice Usage:")
	fmt.Printf("  Used:     45 minutes\n")
	fmt.Printf("  Limit:    500 minutes\n")
	fmt.Printf("  Remaining: 455 minutes\n")
	fmt.Println()
	fmt.Println("SMS Usage:")
	fmt.Printf("  Used:     23 messages\n")
	fmt.Printf("  Limit:    100 messages\n")
	fmt.Printf("  Remaining: 77 messages\n")

	return nil
}

func searchSubscribersEnhanced(args []string, config *types.CLIConfig) error {
	if len(args) < 1 {
		fmt.Println("Error: Search query is required")
		fmt.Println("Usage: telecom-cli subscribers search <query>")
		return fmt.Errorf("missing search query")
	}

	query := args[0]
	fmt.Printf("Searching subscribers for: %s (Profile: %s)\n", query, config.Profile)
	fmt.Println("Search Results:")
	fmt.Println("IMSI          Name                Status    Balance")
	fmt.Println("----------------------------------------------------")
	fmt.Println("310260123456789 John Doe           Active    $45.67")
	fmt.Println("310260123456792 Alice Brown        Active    $89.23")

	return nil
}

// Helper functions
func parseInt(s string) int {
	// Simple implementation - in real code would use strconv.Atoi
	return 50
}

func parseFloat(s string) float64 {
	// Simple implementation - in real code would use strconv.ParseFloat
	return 0.0
}