netrunner_cli 0.7.3

use colored::*;
use dns_lookup::lookup_host;
use rand::RngExt as _;
use std::net::{IpAddr, Ipv4Addr};
use std::time::{Duration, Instant};
use tokio::time::sleep;

use crate::modules::types::{NetworkDiagnostics, RouteHop, TestConfig};
use crate::modules::ui::UI;

pub struct NetworkDiagnosticsTool {
    config: TestConfig,
    ui: UI,
}

impl NetworkDiagnosticsTool {
    pub fn new(config: TestConfig) -> Self {
        let ui = UI::new(config.clone());
        Self { config, ui }
    }

    pub async fn run_diagnostics(&self) -> Result<NetworkDiagnostics, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_section_header("Running Network Diagnostics")?;

            // Show cyberpunk initialization
            if self.config.animation_enabled {
                self.ui.show_connection_establishing()?;
                println!();
                self.ui.show_matrix_effect(3)?;
                println!();
                self.ui
                    .show_pulse_text("⟨⟨⟨ INITIATING DEEP NETWORK SCAN ⟩⟩⟩", 2)?;
            }
        }

        // Determine gateway
        let gateway_ip = self.detect_gateway().await?;

        // Get DNS servers
        let dns_servers = self.detect_dns_servers().await?;

        // Measure DNS response time
        let dns_response_time = self.measure_dns_response_time().await?;

        // Trace route
        let route_hops = self.trace_route("8.8.8.8").await?;

        // Check IPv6 availability
        let is_ipv6_available = self.check_ipv6().await?;

        // Determine connection type (wired/wireless)
        let connection_type = self.detect_connection_type().await?;

        // Get network interface
        let network_interface = self.detect_network_interface().await?;

        let diagnostics = NetworkDiagnostics {
            gateway_ip,
            dns_servers,
            dns_response_time_ms: dns_response_time,
            route_hops,
            is_ipv6_available,
            connection_type: Some(connection_type),
            network_interface: Some(network_interface),
        };

        // Display results with enhanced visuals
        if !self.config.json_output {
            // Show completion animation
            if self.config.animation_enabled {
                println!();
                self.ui.show_pulse_text("⟨⟨⟨ DIAGNOSTICS COMPLETE ⟩⟩⟩", 2)?;
                self.ui.show_matrix_effect(2)?;
                println!();
            }
            self.display_diagnostics_results(&diagnostics)?;
        }

        Ok(diagnostics)
    }

    async fn detect_gateway(&self) -> Result<Option<IpAddr>, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("🌐 Scanning network topology...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(
                self.ui
                    .create_cyberpunk_spinner("SCANNING NEURAL INTERFACES"),
            )
        } else {
            None
        };

        // This is a simplified approach. In a real implementation, you'd:
        // 1. On Windows: Use "ipconfig" and parse the "Default Gateway" line
        // 2. On Linux/macOS: Use "ip route | grep default" or "netstat -nr | grep default"

        // For demonstration, we'll simulate it
        sleep(Duration::from_millis(800)).await;

        let gateway = Some(IpAddr::V4(Ipv4Addr::new(192, 168, 1, 1)));

        if let Some(pb) = pb {
            if let Some(gw) = gateway {
                pb.finish_with_message(format!("⟨⟨⟨ GATEWAY NODE DETECTED: {} ⟩⟩⟩", gw));
            } else {
                pb.finish_with_message("⟨⟨⟨ GATEWAY NODE: NOT DETECTED ⟩⟩⟩");
            }
        }

        Ok(gateway)
    }

    async fn detect_dns_servers(&self) -> Result<Vec<IpAddr>, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("🔍 Probing DNS infrastructure...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(
                self.ui
                    .create_dna_helix_spinner("ANALYZING DNS INFRASTRUCTURE"),
            )
        } else {
            None
        };

        // This is a simplified approach. In a real implementation, you'd:
        // 1. On Windows: Use "ipconfig /all" and parse the "DNS Servers" lines
        // 2. On Linux: Read "/etc/resolv.conf"
        // 3. On macOS: Use "scutil --dns" and parse the output

        // For demonstration, we'll simulate it
        sleep(Duration::from_millis(700)).await;

        let dns_servers = vec![
            IpAddr::V4(Ipv4Addr::new(8, 8, 8, 8)),
            IpAddr::V4(Ipv4Addr::new(8, 8, 4, 4)),
        ];

        if let Some(pb) = pb {
            pb.finish_with_message(format!(
                "⟨⟨⟨ DNS NODES IDENTIFIED: {} ⟩⟩⟩",
                dns_servers.len()
            ));
        }

        Ok(dns_servers)
    }

    async fn measure_dns_response_time(&self) -> Result<f64, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("Measuring DNS response time...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(
                self.ui
                    .create_rocket_spinner("TESTING DNS QUANTUM RESPONSE"),
            )
        } else {
            None
        };

        let domains = vec![
            "google.com",
            "amazon.com",
            "facebook.com",
            "microsoft.com",
            "apple.com",
        ];

        let mut total_time = 0.0;
        let mut successful_lookups = 0;

        for domain in domains {
            let start = Instant::now();
            match lookup_host(domain) {
                Ok(_) => {
                    let duration = start.elapsed().as_millis() as f64;
                    total_time += duration;
                    successful_lookups += 1;

                    if let Some(ref pb) = pb {
                        pb.set_message(format!(
                            "⟨⟨⟨ NEURAL LINK TO {} ESTABLISHED: {:.2}ms ⟩⟩⟩",
                            domain, duration
                        ));
                    }
                }
                Err(e) => {
                    if !self.config.json_output {
                        self.ui
                            .show_error(&format!("Failed to resolve {}: {}", domain, e))?;
                    }
                }
            }

            sleep(Duration::from_millis(100)).await;
        }

        let avg_time = if successful_lookups > 0 {
            total_time / successful_lookups as f64
        } else {
            0.0
        };

        if let Some(pb) = pb {
            pb.finish_with_message(format!(
                "⟨⟨⟨ AVERAGE DNS QUANTUM RESPONSE: {:.2}ms ⟩⟩⟩",
                avg_time
            ));
        }

        Ok(avg_time)
    }

    async fn trace_route(&self, target: &str) -> Result<Vec<RouteHop>, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui
                .show_info(&format!("Tracing route to {}...", target))?;
        }

        let max_hops = 15;
        let pb =
            if !self.config.json_output && self.config.animation_enabled {
                Some(self.ui.create_progress_bar(
                    max_hops,
                    &format!("🌐 Neural pathfinding to {}...", target),
                ))
            } else {
                None
            };

        // Show neural network mapping animation
        if !self.config.json_output && self.config.animation_enabled {
            self.ui.show_matrix_effect(3)?;
            println!();
        }

        let mut hops = Vec::new();

        // This is a simplified approach. In a real implementation, you'd:
        // 1. Use a proper traceroute implementation or library
        // 2. On Windows: Use "tracert" command
        // 3. On Linux/macOS: Use "traceroute" command

        // For demonstration, we'll simulate traceroute
        for hop_number in 1..=max_hops {
            // Simulate network delay
            let mut rng = rand::rng();
            let delay = if hop_number < 3 {
                // Local network hops are faster
                rng.random_range(1..10)
            } else if hop_number < 8 {
                // ISP network
                rng.random_range(10..50)
            } else {
                // Internet
                rng.random_range(50..150)
            };

            sleep(Duration::from_millis(delay)).await;

            // Simulate sometimes missing hops
            let address = if hop_number != 6 && hop_number != 9 {
                let fake_ip = format!("192.168.{}.{}", hop_number, hop_number * 10);
                Some(fake_ip.parse::<IpAddr>()?)
            } else {
                None
            };

            let hostname = None;

            let response_time = if address.is_some() {
                Some(delay as f64)
            } else {
                None
            };

            let hop = RouteHop {
                hop_number: hop_number as u32,
                address,
                hostname,
                response_time_ms: response_time,
            };

            // Store address and response time before moving hop
            let hop_addr = hop.address;
            let hop_resp_time = hop.response_time_ms;

            hops.push(hop);

            if let Some(ref pb) = pb {
                if let Some(addr) = &hop_addr {
                    pb.set_message(format!(
                        "⟨⟨⟨ NEURAL NODE {}: {} ({:.2}ms) - SIGNAL ACQUIRED ⟩⟩⟩",
                        hop_number,
                        addr,
                        hop_resp_time.unwrap_or(0.0)
                    ));
                } else {
                    pb.set_message(format!(
                        "⟨⟨⟨ NEURAL NODE {}: ░░░ ENCRYPTED ░░░ ⟩⟩⟩",
                        hop_number
                    ));
                }
                pb.inc(1);
            }

            // Show packet flow for each hop
            if !self.config.json_output && self.config.animation_enabled {
                tokio::time::sleep(Duration::from_millis(50)).await;
            }

            // Last hop should be the target
            if hop_number == max_hops {
                // Simulate target destination
                let target_ip = IpAddr::V4(Ipv4Addr::new(8, 8, 8, 8));
                hops.pop(); // Remove the last simulated hop
                hops.push(RouteHop {
                    hop_number: hop_number as u32,
                    address: Some(target_ip),
                    hostname: Some(target.to_string()),
                    response_time_ms: Some(delay as f64),
                });

                if let Some(ref pb) = pb {
                    pb.set_message(format!(
                        "⟨⟨⟨ NEURAL NODE {}: {} ({:.2}ms) - DESTINATION REACHED ⟩⟩⟩",
                        hop_number, target_ip, delay as f64
                    ));
                }
            }
        }

        if let Some(pb) = pb {
            pb.finish_with_message(format!(
                "⟨⟨⟨ NEURAL PATH TO {} MAPPED: {} HOPS ⟩⟩⟩",
                target,
                hops.len()
            ));
        }

        Ok(hops)
    }

    async fn check_ipv6(&self) -> Result<bool, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("Checking IPv6 connectivity...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(
                self.ui
                    .create_speed_test_spinner("SCANNING IPv6 QUANTUM TUNNELS"),
            )
        } else {
            None
        };

        // For demonstration, we'll simulate it
        sleep(Duration::from_millis(600)).await;

        // Randomly determine if IPv6 is available
        let ipv6_available = rand::rng().random_bool(0.7); // 70% chance of having IPv6

        if let Some(pb) = pb {
            if ipv6_available {
                pb.finish_with_message("⟨⟨⟨ IPv6 QUANTUM TUNNELS: ACTIVE ⟩⟩⟩");
            } else {
                pb.finish_with_message("⟨⟨⟨ IPv6 QUANTUM TUNNELS: INACTIVE ⟩⟩⟩");
            }
        }

        Ok(ipv6_available)
    }

    async fn detect_connection_type(&self) -> Result<String, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("Detecting connection type...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(self.ui.create_spinner("📡 Analyzing signal patterns..."))
        } else {
            None
        };

        // For demonstration, we'll simulate it
        sleep(Duration::from_millis(500)).await;

        // Randomly choose between wired and wireless
        let connection_type = if rand::rng().random_bool(0.6) {
            "Wireless (Wi-Fi)".to_string()
        } else {
            "Wired (Ethernet)".to_string()
        };

        if let Some(pb) = pb {
            pb.finish_with_message(format!("⟨⟨⟨ CONNECTION TYPE: {} ⟩⟩⟩", connection_type));
        }

        Ok(connection_type)
    }

    async fn detect_network_interface(&self) -> Result<String, Box<dyn std::error::Error>> {
        if !self.config.json_output {
            self.ui.show_info("Detecting network interface...")?;
        }

        let pb = if !self.config.json_output && self.config.animation_enabled {
            Some(
                self.ui
                    .create_spinner("🔌 Interfacing with neural ports..."),
            )
        } else {
            None
        };

        // For demonstration, we'll simulate it
        sleep(Duration::from_millis(400)).await;

        // Simulate different interfaces based on OS
        let interface = if cfg!(target_os = "windows") {
            "Ethernet".to_string()
        } else if cfg!(target_os = "macos") {
            "en0".to_string()
        } else {
            "eth0".to_string()
        };

        if let Some(pb) = pb {
            pb.finish_with_message(format!("⟨⟨⟨ NEURAL INTERFACE: {} ⟩⟩⟩", interface));
        }

        Ok(interface)
    }

    fn display_diagnostics_results(
        &self,
        diagnostics: &NetworkDiagnostics,
    ) -> Result<(), Box<dyn std::error::Error>> {
        self.ui.show_section_header("CYBERNETIC NETWORK ANALYSIS")?;

        // Show cyberpunk results banner
        if self.config.animation_enabled {
            println!(
                "{}",
                "▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓".bright_magenta()
            );
            println!(
                "{}",
                "▓  ⟨⟨⟨ NEURAL NETWORK MAPPING COMPLETE ⟩⟩⟩ ▓".bright_green()
            );
            println!(
                "{}",
                "▓  ⟨⟨⟨ QUANTUM DIAGNOSTICS ANALYZED ⟩⟩⟩  ▓".bright_cyan()
            );
            println!(
                "{}",
                "▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓".bright_magenta()
            );
            println!();
        }

        // Create a pretty table for the basic info
        let mut table = Table::new();
        table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);

        // Gateway with cyberpunk styling
        if let Some(gateway) = diagnostics.gateway_ip {
            table.add_row(Row::new(vec![
                Cell::new("🌐 Neural Gateway").style_spec("Fb"),
                Cell::new(&format!("{} ⚡", gateway)),
            ]));
        } else {
            table.add_row(Row::new(vec![
                Cell::new("🌐 Neural Gateway").style_spec("Fb"),
                Cell::new("❌ OFFLINE"),
            ]));
        }

        // DNS Servers
        let dns_servers = if diagnostics.dns_servers.is_empty() {
            "None detected".to_string()
        } else {
            diagnostics
                .dns_servers
                .iter()
                .map(|ip| ip.to_string())
                .collect::<Vec<String>>()
                .join(", ")
        };

        table.add_row(Row::new(vec![
            Cell::new("🧬 DNS Matrix").style_spec("Fb"),
            Cell::new(&format!("{} 🔗", dns_servers)),
        ]));

        // DNS Response Time
        let dns_quality = match diagnostics.dns_response_time_ms {
            t if t < 20.0 => "Excellent".green(),
            t if t < 50.0 => "Good".bright_green(),
            t if t < 100.0 => "Average".yellow(),
            t if t < 200.0 => "Slow".bright_red(),
            _ => "Very Slow".red(),
        };

        table.add_row(Row::new(vec![
            Cell::new("⚡ Quantum Response").style_spec("Fb"),
            Cell::new(&format!(
                "{:.2}ms {} {}",
                diagnostics.dns_response_time_ms,
                dns_quality,
                if diagnostics.dns_response_time_ms < 50.0 {
                    "🚀"
                } else {
                    ""
                }
            )),
        ]));

        // IPv6 Availability with enhanced display
        table.add_row(Row::new(vec![
            Cell::new("🛰️ IPv6 Protocol").style_spec("Fb"),
            Cell::new(if diagnostics.is_ipv6_available {
                "✅ ACTIVE"
            } else {
                "⚠️ INACTIVE"
            }),
        ]));

        // Connection Type with icon
        if let Some(conn_type) = &diagnostics.connection_type {
            let icon = if conn_type.contains("Wireless") || conn_type.contains("Wi-Fi") {
                "📶"
            } else {
                "🔌"
            };
            table.add_row(Row::new(vec![
                Cell::new("📡 Signal Interface").style_spec("Fb"),
                Cell::new(&format!("{} {}", icon, conn_type)),
            ]));
        }

        // Network Interface with cyberpunk styling
        if let Some(interface) = &diagnostics.network_interface {
            table.add_row(Row::new(vec![
                Cell::new("🔗 Neural Port").style_spec("Fb"),
                Cell::new(&format!("⟨{}⟩", interface)),
            ]));
        }

        // Print the table
        table.printstd();

        // Display route trace if we have hops
        if !diagnostics.route_hops.is_empty() {
            println!(
                "\n{}",
                " 🌐 NEURAL PATHWAY MAPPING 🌐 "
                    .on_bright_magenta()
                    .white()
                    .bold()
            );
            println!(
                "{}",
                "╔═══════════════════════════════════════════╗".bright_cyan()
            );
            println!(
                "{}",
                "║      ⟨⟨⟨ QUANTUM ROUTE ANALYSIS ⟩⟩⟩      ║".bright_green()
            );
            println!(
                "{}",
                "╚═══════════════════════════════════════════╝".bright_cyan()
            );

            let mut trace_table = Table::new();
            trace_table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);

            // Add cyberpunk header
            trace_table.add_row(Row::new(vec![
                Cell::new("🔗 Node").style_spec("Fb"),
                Cell::new("📍 Neural Address").style_spec("Fb"),
                Cell::new("🏷️ Identity").style_spec("Fb"),
                Cell::new("⚡ Signal Delay").style_spec("Fb"),
            ]));

            for hop in &diagnostics.route_hops {
                let addr = hop.address.map_or("⟨⟨⟨ ENCRYPTED ⟩⟩⟩".to_string(), |a| {
                    format!("{} 🔗", a)
                });
                let hostname = hop
                    .hostname
                    .clone()
                    .unwrap_or_else(|| "⟨ANONYMOUS⟩".to_string());
                let time = hop.response_time_ms.map_or("🔒 STEALTH".to_string(), |t| {
                    if t < 50.0 {
                        format!("{:.2}ms ⚡", t)
                    } else if t < 100.0 {
                        format!("{:.2}ms ⚠️", t)
                    } else {
                        format!("{:.2}ms 🐌", t)
                    }
                });

                trace_table.add_row(Row::new(vec![
                    Cell::new(&format!("{:02}", hop.hop_number)),
                    Cell::new(&addr),
                    Cell::new(&hostname),
                    Cell::new(&time),
                ]));
            }

            trace_table.printstd();
        }

        // Provide some recommendations based on the diagnostics
        self.show_diagnostics_recommendations(diagnostics)?;

        Ok(())
    }

    fn show_diagnostics_recommendations(
        &self,
        diagnostics: &NetworkDiagnostics,
    ) -> Result<(), Box<dyn std::error::Error>> {
        println!(
            "\n{}",
            " 🧠 NEURAL NETWORK OPTIMIZATION 🧠 "
                .on_bright_magenta()
                .white()
                .bold()
        );
        println!(
            "{}",
            "╔═══════════════════════════════════════════╗".bright_cyan()
        );
        println!(
            "{}",
            "║     ⟨⟨⟨ CYBERNETIC RECOMMENDATIONS ⟩⟩⟩    ║".bright_green()
        );
        println!(
            "{}",
            "╚═══════════════════════════════════════════╝".bright_cyan()
        );

        // Check DNS performance with cyberpunk styling
        if diagnostics.dns_response_time_ms > 100.0 {
            println!("⚡ {}", "DNS QUANTUM TUNNELING DEGRADED: Consider upgrading to enhanced DNS matrices like Google (8.8.8.8) or Cloudflare (1.1.1.1) for optimal neural response.".bright_yellow());
        }

        // Check IPv6 availability with enhanced message
        if !diagnostics.is_ipv6_available {
            println!("🛰️ {}", "IPv6 QUANTUM PROTOCOLS OFFLINE: Your network lacks next-gen connectivity. Activating IPv6 will unlock advanced neural pathways to modern digital realms.".bright_blue());
        }

        // Check for missing hops in traceroute
        let missing_hops = diagnostics
            .route_hops
            .iter()
            .filter(|hop| hop.address.is_none())
            .count();

        if missing_hops > 2 {
            println!("🔍 {}", "NEURAL PATHWAY FRAGMENTATION DETECTED: Multiple nodes in stealth mode. This suggests encrypted routing or network infrastructure anomalies.".bright_yellow());
        }

        // Check connection type for wireless optimization with cyberpunk flair
        if let Some(conn_type) = &diagnostics.connection_type {
            if conn_type.contains("Wi-Fi") || conn_type.contains("Wireless") {
                println!("📶 {}", "WIRELESS NEURAL INTERFACE ACTIVE: For maximum bandwidth and signal stability, consider hardwiring your neural port via Ethernet for critical cyberspace operations.".bright_blue());
            }
        }

        // If everything looks good with cyberpunk celebration
        if diagnostics.dns_response_time_ms < 50.0 && missing_hops <= 2 {
            println!("🚀 {}", "NEURAL NETWORK STATUS: ⟨⟨⟨ OPTIMAL ⟩⟩⟩ - All cybernetic systems operating at peak efficiency! You're ready to jack into the matrix.".bright_green());

            // Show success animation if enabled
            if self.config.animation_enabled {
                println!();
                self.ui
                    .show_pulse_text("⟨⟨⟨ CONNECTION QUALITY: EXCELLENT ⟩⟩⟩", 2)?;
            }
        }

        Ok(())
    }
}

use prettytable::{format, Cell, Row, Table};