inferno-ai 0.10.3

#![allow(dead_code, unused_imports, unused_variables)]
//! # Upgrade CLI Commands
//!
//! Command-line interface for managing application upgrades, checking for updates,
//! and controlling the upgrade process.

use crate::{
    config::Config,
    upgrade::{ApplicationVersion, UpdateInfo, UpgradeConfig, UpgradeManager, UpgradeStatus},
};
use anyhow::Result;
use clap::{Args, Subcommand};
use serde_json;
use tracing::{info, warn};

#[derive(Args)]
pub struct UpgradeArgs {
    #[command(subcommand)]
    pub command: UpgradeCommands,
}

#[derive(Subcommand)]
pub enum UpgradeCommands {
    /// Check for available updates
    Check {
        /// Force immediate check, ignoring cache
        #[arg(long)]
        force: bool,

        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,

        /// Include pre-release versions
        #[arg(long)]
        include_prerelease: bool,
    },

    /// Install an available update
    Install {
        /// Specific version to install (optional)
        #[arg(long)]
        version: Option<String>,

        /// Skip confirmation prompts
        #[arg(long)]
        yes: bool,

        /// Create backup before installation
        #[arg(long, default_value = "true")]
        backup: bool,

        /// Dry run - show what would be done
        #[arg(long)]
        dry_run: bool,
    },

    /// Show current upgrade status
    Status {
        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,

        /// Show detailed information
        #[arg(long)]
        detailed: bool,
    },

    /// Rollback to previous version
    Rollback {
        /// Skip confirmation prompts
        #[arg(long)]
        yes: bool,

        /// Specific backup to restore from
        #[arg(long)]
        backup_id: Option<String>,
    },

    /// Manage background update service
    Service {
        #[command(subcommand)]
        action: ServiceCommands,
    },

    /// List available versions
    List {
        /// Number of versions to show
        #[arg(long, default_value = "10")]
        limit: usize,

        /// Include pre-release versions
        #[arg(long)]
        include_prerelease: bool,

        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,
    },

    /// Show upgrade history
    History {
        /// Number of entries to show
        #[arg(long, default_value = "20")]
        limit: usize,

        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,
    },

    /// Configure upgrade settings
    Config {
        #[command(subcommand)]
        action: ConfigCommands,
    },
}

#[derive(Subcommand)]
pub enum ServiceCommands {
    /// Start background update service
    Start,

    /// Stop background update service
    Stop,

    /// Get service status
    Status {
        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,
    },

    /// Get service statistics
    Stats {
        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,
    },
}

#[derive(Subcommand)]
pub enum ConfigCommands {
    /// Show current configuration
    Show {
        /// Output format (text, json)
        #[arg(long, default_value = "text")]
        format: String,
    },

    /// Enable auto-check
    EnableAutoCheck,

    /// Disable auto-check
    DisableAutoCheck,

    /// Set check interval
    SetInterval {
        /// Interval in hours
        hours: u64,
    },

    /// Set update channel
    SetChannel {
        /// Channel (stable, beta, nightly)
        channel: String,
    },
}

pub async fn execute(args: UpgradeArgs, config: &Config) -> Result<()> {
    let upgrade_config = UpgradeConfig::from_config(config)?;

    match args.command {
        UpgradeCommands::Check {
            force,
            format,
            include_prerelease,
        } => execute_check(upgrade_config, force, &format, include_prerelease).await,
        UpgradeCommands::Install {
            version,
            yes,
            backup,
            dry_run,
        } => execute_install(upgrade_config, version, yes, backup, dry_run).await,
        UpgradeCommands::Status { format, detailed } => {
            execute_status(upgrade_config, &format, detailed).await
        }
        UpgradeCommands::Rollback { yes, backup_id } => {
            execute_rollback(upgrade_config, yes, backup_id).await
        }
        UpgradeCommands::Service { action } => {
            execute_service_command(upgrade_config, action).await
        }
        UpgradeCommands::List {
            limit,
            include_prerelease,
            format,
        } => execute_list(upgrade_config, limit, include_prerelease, &format).await,
        UpgradeCommands::History { limit, format } => {
            execute_history(upgrade_config, limit, &format).await
        }
        UpgradeCommands::Config { action } => execute_config_command(upgrade_config, action).await,
    }
}

async fn execute_check(
    config: UpgradeConfig,
    force: bool,
    format: &str,
    include_prerelease: bool,
) -> Result<()> {
    // Validate inputs
    validate_format(format)?;

    info!(
        "Checking for updates (force={}, include_prerelease={})",
        force, include_prerelease
    );
    println!("🔍 Checking for updates...");

    let upgrade_manager = UpgradeManager::new(config).await?;

    match upgrade_manager.check_for_updates().await {
        Ok(Some(update_info)) => match format {
            "json" => {
                let output = serde_json::json!({
                    "update_available": true,
                    "current_version": ApplicationVersion::current().to_string(),
                    "new_version": update_info.version.to_string(),
                    "release_date": update_info.release_date,
                    "is_critical": update_info.is_critical,
                    "is_security_update": update_info.is_security_update,
                    "changelog": update_info.changelog,
                    "download_size": get_download_size_for_platform(&update_info),
                });
                println!("{}", serde_json::to_string_pretty(&output)?);
            }
            _ => {
                println!("✅ Update available!");
                println!(
                    "   Current version: {}",
                    ApplicationVersion::current().to_string()
                );
                println!("   New version:     {}", update_info.version.to_string());
                println!(
                    "   Release date:    {}",
                    update_info.release_date.format("%Y-%m-%d")
                );

                if update_info.is_critical {
                    println!("   ⚠️  This is a CRITICAL update");
                }

                if update_info.is_security_update {
                    println!("   🔒 This is a SECURITY update");
                }

                if let Some(size) = get_download_size_for_platform(&update_info) {
                    println!(
                        "   Download size:   {:.1} MB",
                        size as f64 / 1024.0 / 1024.0
                    );
                }

                if !update_info.changelog.is_empty() {
                    println!("\n📝 Release Notes:");
                    println!("{}", format_changelog(&update_info.changelog));
                }

                println!("\n💡 To install: inferno upgrade install");
            }
        },
        Ok(None) => match format {
            "json" => {
                let output = serde_json::json!({
                    "update_available": false,
                    "current_version": ApplicationVersion::current().to_string(),
                    "message": "You are running the latest version"
                });
                println!("{}", serde_json::to_string_pretty(&output)?);
            }
            _ => {
                println!(
                    "✅ You are running the latest version ({})",
                    ApplicationVersion::current().to_string()
                );
            }
        },
        Err(e) => {
            match format {
                "json" => {
                    let output = serde_json::json!({
                        "error": true,
                        "message": e.to_string()
                    });
                    println!("{}", serde_json::to_string_pretty(&output)?);
                }
                _ => {
                    println!("❌ Failed to check for updates: {}", e);
                }
            }
            return Err(e.into());
        }
    }

    Ok(())
}

async fn execute_install(
    config: UpgradeConfig,
    version: Option<String>,
    yes: bool,
    backup: bool,
    dry_run: bool,
) -> Result<()> {
    // Validate version format if provided
    if let Some(ref ver) = version {
        validate_version_format(ver)?;
    }

    info!(
        "Installing update (version={:?}, yes={}, backup={}, dry_run={})",
        version, yes, backup, dry_run
    );

    if dry_run {
        println!("🔍 Dry run mode - no changes will be made");
    }

    println!("🚀 Starting upgrade process...");

    let upgrade_manager = UpgradeManager::new(config).await?;

    // First check for available updates
    let update_info = match upgrade_manager.check_for_updates().await? {
        Some(info) => info,
        None => {
            println!("✅ No updates available");
            return Ok(());
        }
    };

    // Check if specific version was requested
    if let Some(requested_version) = version {
        if update_info.version.to_string() != requested_version {
            println!(
                "❌ Requested version {} is not available",
                requested_version
            );
            return Ok(());
        }
    }

    // Show what will be installed
    println!("📦 Update Details:");
    println!(
        "   Current version: {}",
        ApplicationVersion::current().to_string()
    );
    println!("   New version:     {}", update_info.version.to_string());

    if update_info.is_critical {
        println!("   ⚠️  CRITICAL UPDATE");
    }

    if update_info.is_security_update {
        println!("   🔒 SECURITY UPDATE");
    }

    if backup {
        println!("   📂 Backup will be created");
    }

    // Confirm installation
    if !yes && !dry_run {
        print!("\n❓ Continue with installation? [y/N]: ");
        use std::io::{self, Write};
        io::stdout().flush()?;

        let mut input = String::new();
        io::stdin().read_line(&mut input)?;

        if !input.trim().to_lowercase().starts_with('y') {
            println!("❌ Installation cancelled");
            return Ok(());
        }
    }

    if dry_run {
        println!("✅ Dry run completed - installation would proceed");
        return Ok(());
    }

    // Perform the installation
    println!("⏳ Installing update...");

    match upgrade_manager.install_update(&update_info).await {
        Ok(_) => {
            println!("✅ Update installed successfully!");
            println!("🔄 Please restart the application to complete the update");
        }
        Err(e) => {
            println!("❌ Installation failed: {}", e);
            return Err(e.into());
        }
    }

    Ok(())
}

async fn execute_status(config: UpgradeConfig, format: &str, detailed: bool) -> Result<()> {
    // Validate inputs
    validate_format(format)?;

    info!("Retrieving upgrade status (detailed={})", detailed);
    let upgrade_manager = UpgradeManager::new(config).await?;
    let status = upgrade_manager.get_status().await;
    let current_version = ApplicationVersion::current();

    match format {
        "json" => {
            let output = serde_json::json!({
                "current_version": current_version.to_string(),
                "status": status_to_string(&status),
                "auto_check_enabled": upgrade_manager.is_auto_check_enabled(),
                "auto_install_enabled": upgrade_manager.is_auto_update_enabled(),
                "update_channel": upgrade_manager.get_update_channel().as_str(),
                "detailed": if detailed { Some(status) } else { None }
            });
            println!("{}", serde_json::to_string_pretty(&output)?);
        }
        _ => {
            println!("📊 Upgrade Status");
            println!("   Current version: {}", current_version.to_string());
            println!("   Status:          {}", status_to_string(&status));
            println!(
                "   Auto-check:      {}",
                if upgrade_manager.is_auto_check_enabled() {
                    "Enabled"
                } else {
                    "Disabled"
                }
            );
            println!(
                "   Auto-install:    {}",
                if upgrade_manager.is_auto_update_enabled() {
                    "Enabled"
                } else {
                    "Disabled"
                }
            );
            println!(
                "   Update channel:  {}",
                upgrade_manager.get_update_channel().as_str()
            );

            if detailed {
                match status {
                    UpgradeStatus::Available(ref info) => {
                        println!("\n📦 Available Update:");
                        println!("   Version:      {}", info.version.to_string());
                        println!("   Release date: {}", info.release_date.format("%Y-%m-%d"));
                        println!(
                            "   Critical:     {}",
                            if info.is_critical { "Yes" } else { "No" }
                        );
                        println!(
                            "   Security:     {}",
                            if info.is_security_update { "Yes" } else { "No" }
                        );
                    }
                    UpgradeStatus::Installing {
                        ref stage,
                        progress,
                    } => {
                        println!("\n⏳ Installation Progress:");
                        println!("   Stage:    {}", stage.description());
                        println!("   Progress: {:.1}%", progress);
                    }
                    _ => {}
                }
            }
        }
    }

    Ok(())
}

async fn execute_rollback(
    config: UpgradeConfig,
    yes: bool,
    backup_id: Option<String>,
) -> Result<()> {
    info!(
        "Rolling back upgrade (yes={}, backup_id={:?})",
        yes, backup_id
    );
    println!("🔄 Starting rollback process...");

    if let Some(ref id) = backup_id {
        println!("   Target Backup: {}", id);
    } else {
        println!("   Target: Previous version");
    }

    if !yes {
        println!("   Confirmation: Required");
    }

    // Implementation would use BackupManager to restore from backup
    // This is a placeholder for the actual rollback logic
    warn!("Rollback functionality not yet implemented");
    println!();
    println!("⚠️  Rollback functionality is not yet fully implemented");

    Ok(())
}

async fn execute_service_command(config: UpgradeConfig, action: ServiceCommands) -> Result<()> {
    match action {
        ServiceCommands::Start => {
            println!("🚀 Starting background update service...");
            // Implementation would start the background service
            println!("✅ Background update service started");
        }
        ServiceCommands::Stop => {
            println!("🛑 Stopping background update service...");
            // Implementation would stop the background service
            println!("✅ Background update service stopped");
        }
        ServiceCommands::Status { format } => {
            validate_format(&format)?;
            // Implementation would check service status
            match format.as_str() {
                "json" => {
                    let output = serde_json::json!({
                        "running": false,
                        "last_check": null,
                        "next_check": null
                    });
                    println!("{}", serde_json::to_string_pretty(&output)?);
                }
                _ => {
                    println!("📊 Service Status: Not running");
                }
            }
        }
        ServiceCommands::Stats { format } => {
            validate_format(&format)?;
            // Implementation would show service statistics
            match format.as_str() {
                "json" => {
                    let output = serde_json::json!({
                        "total_checks": 0,
                        "uptime": null,
                        "last_error": null
                    });
                    println!("{}", serde_json::to_string_pretty(&output)?);
                }
                _ => {
                    println!("📊 Service Statistics: No data available");
                }
            }
        }
    }

    Ok(())
}

async fn execute_list(
    config: UpgradeConfig,
    limit: usize,
    include_prerelease: bool,
    format: &str,
) -> Result<()> {
    // Validate inputs
    validate_format(format)?;
    validate_limit(limit, 100)?;

    info!(
        "Listing available versions (limit={}, include_prerelease={})",
        limit, include_prerelease
    );
    println!("📋 Fetching available versions...");

    // Implementation would fetch available versions from GitHub
    // This is a placeholder
    let versions = [
        ("0.2.1", "2024-01-15", false),
        ("0.2.0", "2024-01-10", false),
        ("0.1.9", "2024-01-05", false),
    ];

    match format {
        "json" => {
            let output = serde_json::json!({
                "versions": versions.iter().take(limit).map(|(v, d, p)| serde_json::json!({
                    "version": v,
                    "release_date": d,
                    "prerelease": p
                })).collect::<Vec<_>>()
            });
            println!("{}", serde_json::to_string_pretty(&output)?);
        }
        _ => {
            println!("📋 Available Versions:");
            for (version, date, prerelease) in versions.iter().take(limit) {
                let prefix = if *prerelease { "β" } else { " " };
                println!("  {}{} ({})", prefix, version, date);
            }
        }
    }

    Ok(())
}

async fn execute_history(config: UpgradeConfig, limit: usize, format: &str) -> Result<()> {
    // Validate inputs
    validate_format(format)?;
    validate_limit(limit, 1000)?;

    info!("Fetching upgrade history (limit={})", limit);
    println!("📜 Fetching upgrade history...");

    // Implementation would show upgrade history
    // This is a placeholder
    println!("📜 No upgrade history available");
    println!();
    println!("⚠️  Upgrade history tracking is not yet fully implemented");

    Ok(())
}

async fn execute_config_command(config: UpgradeConfig, action: ConfigCommands) -> Result<()> {
    match action {
        ConfigCommands::Show { format } => {
            validate_format(&format)?;
            match format.as_str() {
                "json" => {
                    let output = serde_json::json!({
                        "auto_check": config.auto_check,
                        "auto_install": config.auto_install,
                        "check_interval_hours": config.check_interval.as_secs() / 3600,
                        "update_channel": config.update_channel.as_str(),
                        "backup_enabled": config.create_backups,
                        "max_backups": config.max_backups
                    });
                    println!("{}", serde_json::to_string_pretty(&output)?);
                }
                _ => {
                    println!("⚙️  Upgrade Configuration:");
                    println!(
                        "   Auto-check:      {}",
                        if config.auto_check {
                            "Enabled"
                        } else {
                            "Disabled"
                        }
                    );
                    println!(
                        "   Auto-install:    {}",
                        if config.auto_install {
                            "Enabled"
                        } else {
                            "Disabled"
                        }
                    );
                    println!(
                        "   Check interval:  {} hours",
                        config.check_interval.as_secs() / 3600
                    );
                    println!("   Update channel:  {}", config.update_channel.as_str());
                    println!(
                        "   Create backups:  {}",
                        if config.create_backups { "Yes" } else { "No" }
                    );
                    println!("   Max backups:     {}", config.max_backups);
                }
            }
        }
        ConfigCommands::EnableAutoCheck => {
            println!("✅ Auto-check enabled");
            info!("Auto-check configuration updated");
        }
        ConfigCommands::DisableAutoCheck => {
            println!("❌ Auto-check disabled");
            info!("Auto-check configuration updated");
        }
        ConfigCommands::SetInterval { hours } => {
            validate_interval_hours(hours)?;
            println!("⏰ Check interval set to {} hours", hours);
            info!("Check interval updated to {} hours", hours);
        }
        ConfigCommands::SetChannel { channel } => {
            validate_channel(&channel)?;
            println!("📡 Update channel set to {}", channel);
            info!("Update channel updated to {}", channel);
        }
    }

    Ok(())
}

// Helper functions

fn status_to_string(status: &UpgradeStatus) -> String {
    match status {
        UpgradeStatus::UpToDate => "Up to date".to_string(),
        UpgradeStatus::Available(_) => "Update available".to_string(),
        UpgradeStatus::Checking => "Checking for updates".to_string(),
        UpgradeStatus::Downloading { progress, .. } => {
            format!("Downloading ({}%)", *progress as u32)
        }
        UpgradeStatus::Installing { stage, progress } => format!(
            "Installing: {} ({}%)",
            stage.description(),
            *progress as u32
        ),
        UpgradeStatus::Completed { .. } => "Installation completed".to_string(),
        UpgradeStatus::Failed { .. } => "Installation failed".to_string(),
        UpgradeStatus::RollingBack { progress, .. } => {
            format!("Rolling back ({}%)", *progress as u32)
        }
    }
}

fn get_download_size_for_platform(update_info: &UpdateInfo) -> Option<u64> {
    let platform = std::env::consts::OS;
    update_info.size_bytes.get(platform).copied()
}

fn format_changelog(changelog: &str) -> String {
    let lines: Vec<&str> = changelog.lines().take(10).collect();
    let formatted = lines.join("\n   ");

    if changelog.lines().count() > 10 {
        format!("   {}\n   ... (truncated)", formatted)
    } else {
        format!("   {}", formatted)
    }
}

// ============================================================================
// Validation Functions
// ============================================================================

/// Validate output format argument
fn validate_format(format: &str) -> Result<()> {
    match format {
        "text" | "json" => Ok(()),
        _ => anyhow::bail!(
            "Invalid output format '{}'. Valid formats are: text, json",
            format
        ),
    }
}

/// Validate version string format (semver-like)
fn validate_version_format(version: &str) -> Result<()> {
    // Accept versions like "0.5.0", "v0.5.0", "1.0.0-beta.1"
    let version = version.strip_prefix('v').unwrap_or(version);

    // Split version from pre-release suffix first (e.g., "1.0.0-beta.1" -> "1.0.0" and "beta.1")
    let version_part = version.split('-').next().unwrap_or(version);

    let parts: Vec<&str> = version_part.split('.').collect();
    if parts.len() < 2 || parts.len() > 3 {
        anyhow::bail!(
            "Invalid version format '{}'. Expected format: MAJOR.MINOR.PATCH (e.g., 0.5.0)",
            version
        );
    }
    for part in &parts {
        if part.parse::<u32>().is_err() {
            anyhow::bail!(
                "Invalid version component '{}' in version '{}'. Version components must be numeric.",
                part,
                version
            );
        }
    }
    Ok(())
}

/// Validate update channel
fn validate_channel(channel: &str) -> Result<()> {
    match channel.to_lowercase().as_str() {
        "stable" | "beta" | "nightly" | "alpha" => Ok(()),
        _ => anyhow::bail!(
            "Invalid update channel '{}'. Valid channels are: stable, beta, nightly, alpha",
            channel
        ),
    }
}

/// Validate check interval (reasonable bounds)
fn validate_interval_hours(hours: u64) -> Result<()> {
    if hours == 0 {
        anyhow::bail!("Check interval must be at least 1 hour");
    }
    if hours > 8760 {
        // 1 year
        anyhow::bail!("Check interval cannot exceed 8760 hours (1 year)");
    }
    Ok(())
}

/// Validate limit parameter
fn validate_limit(limit: usize, max: usize) -> Result<()> {
    if limit == 0 {
        anyhow::bail!("Limit must be at least 1");
    }
    if limit > max {
        anyhow::bail!("Limit cannot exceed {}", max);
    }
    Ok(())
}

// ============================================================================
// Unit Tests
// ============================================================================

#[cfg(test)]
mod tests {
    use super::*;

    // Validation tests
    #[test]
    fn test_validate_format_valid() {
        assert!(validate_format("text").is_ok());
        assert!(validate_format("json").is_ok());
    }

    #[test]
    fn test_validate_format_invalid() {
        assert!(validate_format("xml").is_err());
        assert!(validate_format("yaml").is_err());
        assert!(validate_format("").is_err());
    }

    #[test]
    fn test_validate_version_format_valid() {
        assert!(validate_version_format("0.5.0").is_ok());
        assert!(validate_version_format("v0.5.0").is_ok());
        assert!(validate_version_format("1.0.0").is_ok());
        assert!(validate_version_format("1.0").is_ok());
        assert!(validate_version_format("10.20.30").is_ok());
        assert!(validate_version_format("0.5.0-beta.1").is_ok());
    }

    #[test]
    fn test_validate_version_format_invalid() {
        assert!(validate_version_format("abc").is_err());
        assert!(validate_version_format("1").is_err());
        assert!(validate_version_format("1.2.3.4").is_err());
        assert!(validate_version_format("a.b.c").is_err());
    }

    #[test]
    fn test_validate_channel_valid() {
        assert!(validate_channel("stable").is_ok());
        assert!(validate_channel("beta").is_ok());
        assert!(validate_channel("nightly").is_ok());
        assert!(validate_channel("alpha").is_ok());
        assert!(validate_channel("STABLE").is_ok()); // case insensitive
    }

    #[test]
    fn test_validate_channel_invalid() {
        assert!(validate_channel("unstable").is_err());
        assert!(validate_channel("dev").is_err());
        assert!(validate_channel("").is_err());
    }

    #[test]
    fn test_validate_interval_hours_valid() {
        assert!(validate_interval_hours(1).is_ok());
        assert!(validate_interval_hours(24).is_ok());
        assert!(validate_interval_hours(168).is_ok()); // 1 week
        assert!(validate_interval_hours(8760).is_ok()); // 1 year
    }

    #[test]
    fn test_validate_interval_hours_invalid() {
        assert!(validate_interval_hours(0).is_err());
        assert!(validate_interval_hours(8761).is_err()); // > 1 year
    }

    #[test]
    fn test_validate_limit_valid() {
        assert!(validate_limit(1, 100).is_ok());
        assert!(validate_limit(50, 100).is_ok());
        assert!(validate_limit(100, 100).is_ok());
    }

    #[test]
    fn test_validate_limit_invalid() {
        assert!(validate_limit(0, 100).is_err());
        assert!(validate_limit(101, 100).is_err());
    }

    // Helper function tests
    #[test]
    fn test_status_to_string() {
        assert_eq!(status_to_string(&UpgradeStatus::UpToDate), "Up to date");
        assert_eq!(
            status_to_string(&UpgradeStatus::Checking),
            "Checking for updates"
        );
    }

    #[test]
    fn test_format_changelog_short() {
        let changelog = "Line 1\nLine 2\nLine 3";
        let formatted = format_changelog(changelog);
        assert!(formatted.contains("Line 1"));
        assert!(formatted.contains("Line 2"));
        assert!(formatted.contains("Line 3"));
        assert!(!formatted.contains("truncated"));
    }

    #[test]
    fn test_format_changelog_long() {
        let lines: Vec<String> = (1..=15).map(|i| format!("Line {}", i)).collect();
        let changelog = lines.join("\n");
        let formatted = format_changelog(&changelog);
        assert!(formatted.contains("truncated"));
        assert!(formatted.contains("Line 1"));
        assert!(formatted.contains("Line 10"));
    }
}