amberjs 1.17.0

// Deployment strategies module
// Provides Blue-Green, Canary, and Rolling deployment support
/// Deployment configuration
#[derive(Debug, Clone)]
pub struct DeploymentConfig {
    /// Deployment strategy
    pub strategy: String,
    /// Service name
    pub service_name: String,
    /// Environment
    pub environment: String,
    /// Current version
    pub current_version: String,
    /// Next version
    pub next_version: String,
    /// Additional parameters
    pub parameters: std::collections::HashMap<String, String>,
}
/// Deployment status
#[derive(Debug, Clone)]
pub struct DeploymentStatus {
    /// Success status
    pub success: bool,
    /// Status message
    pub message: String,
    /// Current version
    pub current_version: String,
    /// Previous version
    pub previous_version: Option<String>,
    /// Traffic split (for canary deployments)
    pub traffic_split: Option<u32>,
}
/// Blue-Green deployment strategy
#[derive(Debug, Clone)]
pub struct BlueGreenDeployment {
    /// Service name
    pub service_name: String,
    /// Environment
    pub environment: String,
    /// Current version
    pub current_version: String,
    /// Next version
    pub next_version: String,
    /// Pre-deployment hook
    pub pre_hook: Option<Vec<String>>,
    /// Post-deployment hook
    pub post_hook: Option<Vec<String>>,
    /// Rollback on failure
    pub rollback_on_failure: bool,
}
impl BlueGreenDeployment {
    /// Create a new Blue-Green deployment
    pub fn new(
        service_name: String,
        environment: String,
        current_version: String,
        next_version: String,
    ) -> Self {
        Self {
            service_name,
            environment,
            current_version,
            next_version,
            pre_hook: None,
            post_hook: None,
            rollback_on_failure: true,
        }
    }
    /// Set pre-deployment hook
    pub fn pre_hook(mut self, hook: Vec<String>) -> Self {
        self.pre_hook = Some(hook);
        self
    }
    /// Set post-deployment hook
    pub fn post_hook(mut self, hook: Vec<String>) -> Self {
        self.post_hook = Some(hook);
        self
    }
    /// Set rollback on failure
    pub fn rollback_on_failure(mut self, rollback: bool) -> Self {
        self.rollback_on_failure = rollback;
        self
    }
    /// Execute Blue-Green deployment
    pub fn execute(&self) -> Result<DeploymentStatus, Error> {
        println!(
            "Executing Blue-Green deployment for {}/{}: {} -> {}",
            self.service_name, self.environment, self.current_version, self.next_version
        );
        // In a real implementation, this would:
        // 1. Deploy the next version to the green environment
        // 2. Run health checks
        // 3. Switch traffic to green
        // 4. Optionally decommission blue
        Ok(DeploymentStatus {
            success: true,
            message: format!(
                "Blue-Green deployment completed successfully for {}/{}",
                self.service_name, self.environment
            ),
            current_version: self.next_version.clone(),
            previous_version: Some(self.current_version.clone()),
            traffic_split: None,
        })
    }
}
/// Canary deployment strategy
#[derive(Debug, Clone)]
pub struct CanaryDeployment {
    /// Service name
    pub service_name: String,
    /// Environment
    pub environment: String,
    /// Current version
    pub current_version: String,
    /// Next version
    pub next_version: String,
    /// Traffic split percentage
    pub traffic_split: u32,
    /// Auto-promote
    pub auto_promote: bool,
    /// Promotion threshold
    pub promotion_threshold: u32,
    /// Health check interval
    pub health_check_interval: u32,
    /// Rollback on failure
    pub rollback_on_failure: bool,
}
impl CanaryDeployment {
    /// Create a new Canary deployment
    pub fn new(
        service_name: String,
        environment: String,
        current_version: String,
        next_version: String,
        traffic_split: u32,
    ) -> Self {
        Self {
            service_name,
            environment,
            current_version,
            next_version,
            traffic_split,
            auto_promote: false,
            promotion_threshold: 95,
            health_check_interval: 30,
            rollback_on_failure: true,
        }
    }
    /// Set auto-promote
    pub fn auto_promote(mut self, auto: bool) -> Self {
        self.auto_promote = auto;
        self
    }
    /// Set promotion threshold
    pub fn promotion_threshold(mut self, threshold: u32) -> Self {
        self.promotion_threshold = threshold;
        self
    }
    /// Set health check interval
    pub fn health_check_interval(mut self, interval: u32) -> Self {
        self.health_check_interval = interval;
        self
    }
    /// Set rollback on failure
    pub fn rollback_on_failure(mut self, rollback: bool) -> Self {
        self.rollback_on_failure = rollback;
        self
    }
    /// Execute Canary deployment
    pub fn execute(&self) -> Result<DeploymentStatus, Error> {
        println!(
            "Executing Canary deployment for {}/{}: {} -> {} ({}% traffic)",
            self.service_name,
            self.environment,
            self.current_version,
            self.next_version,
            self.traffic_split
        );
        // In a real implementation, this would:
        // 1. Deploy the next version with limited traffic
        // 2. Monitor metrics and health
        // 3. Gradually increase traffic if healthy
        // 4. Auto-promote if threshold reached
        Ok(DeploymentStatus {
            success: true,
            message: format!(
                "Canary deployment started for {}/{} with {}% traffic",
                self.service_name, self.environment, self.traffic_split
            ),
            current_version: self.current_version.clone(),
            previous_version: None,
            traffic_split: Some(self.traffic_split),
        })
    }
    /// Promote canary to full deployment
    pub fn promote_canary(&self) -> Result<DeploymentStatus, Error> {
        println!(
            "Promoting Canary deployment for {}/{} to 100% traffic",
            self.service_name, self.environment
        );
        Ok(DeploymentStatus {
            success: true,
            message: format!(
                "Canary promoted to full deployment for {}/{}",
                self.service_name, self.environment
            ),
            current_version: self.next_version.clone(),
            previous_version: Some(self.current_version.clone()),
            traffic_split: Some(100),
        })
    }
    /// Rollback canary deployment
    pub fn rollback_canary(&self) -> Result<DeploymentStatus, Error> {
        println!(
            "Rolling back Canary deployment for {}/{}",
            self.service_name, self.environment
        );
        Ok(DeploymentStatus {
            success: true,
            message: format!(
                "Canary deployment rolled back for {}/{}",
                self.service_name, self.environment
            ),
            current_version: self.current_version.clone(),
            previous_version: Some(self.next_version.clone()),
            traffic_split: Some(0),
        })
    }
}
/// Rolling deployment strategy
#[derive(Debug, Clone)]
pub struct RollingDeployment {
    /// Service name
    pub service_name: String,
    /// Environment
    pub environment: String,
    /// Current version
    pub current_version: String,
    /// Next version
    pub next_version: String,
    /// Maximum unavailable pods
    pub max_unavailable: u32,
    /// Maximum surge pods
    pub max_surge: u32,
    /// Minimum ready seconds
    pub min_ready_seconds: u32,
    /// Progress deadline seconds
    pub progress_deadline_seconds: u32,
    /// Rollback on failure
    pub rollback_on_failure: bool,
}
impl RollingDeployment {
    /// Create a new Rolling deployment
    pub fn new(
        service_name: String,
        environment: String,
        current_version: String,
        next_version: String,
    ) -> Self {
        Self {
            service_name,
            environment,
            current_version,
            next_version,
            max_unavailable: 1,
            max_surge: 1,
            min_ready_seconds: 0,
            progress_deadline_seconds: 600,
            rollback_on_failure: true,
        }
    }
    /// Set maximum unavailable pods
    pub fn max_unavailable(mut self, max: u32) -> Self {
        self.max_unavailable = max;
        self
    }
    /// Set maximum surge pods
    pub fn max_surge(mut self, max: u32) -> Self {
        self.max_surge = max;
        self
    }
    /// Set minimum ready seconds
    pub fn min_ready_seconds(mut self, seconds: u32) -> Self {
        self.min_ready_seconds = seconds;
        self
    }
    /// Set progress deadline seconds
    pub fn progress_deadline_seconds(mut self, seconds: u32) -> Self {
        self.progress_deadline_seconds = seconds;
        self
    }
    /// Set rollback on failure
    pub fn rollback_on_failure(mut self, rollback: bool) -> Self {
        self.rollback_on_failure = rollback;
        self
    }
    /// Execute Rolling deployment
    pub fn execute(&self) -> Result<DeploymentStatus, Error> {
        println!(
            "Executing Rolling deployment for {}/{}: {} -> {} (max_unavailable={}, max_surge={})",
            self.service_name,
            self.environment,
            self.current_version,
            self.next_version,
            self.max_unavailable,
            self.max_surge
        );
        // In a real implementation, this would:
        // 1. Gradually replace old pods with new ones
        // 2. Respect max_unavailable and max_surge limits
        // 3. Wait for pods to be ready (min_ready_seconds)
        // 4. Monitor progress and rollback if needed
        Ok(DeploymentStatus {
            success: true,
            message: format!(
                "Rolling deployment completed for {}/{}",
                self.service_name, self.environment
            ),
            current_version: self.next_version.clone(),
            previous_version: Some(self.current_version.clone()),
            traffic_split: None,
        })
    }
}
/// Deployment strategy enum
#[derive(Debug, Clone)]
pub enum DeploymentStrategy {
    /// Blue-Green deployment
    BlueGreen(BlueGreenDeployment),
    /// Canary deployment
    Canary(CanaryDeployment),
    /// Rolling deployment
    Rolling(RollingDeployment),
}
impl DeploymentStrategy {
    /// Create a new deployment strategy manager
    pub fn new() -> Self {
        // This is a placeholder - actual manager would be different
        // We'll implement a proper manager below
        panic!("Use DeploymentManager::new() instead");
    }
    /// Execute the deployment
    pub fn execute(&self) -> Result<DeploymentStatus, Error> {
        match self {
            DeploymentStrategy::BlueGreen(deployment) => deployment.execute(),
            DeploymentStrategy::Canary(deployment) => deployment.execute(),
            DeploymentStrategy::Rolling(deployment) => deployment.execute(),
        }
    }
}
/// Deployment manager
pub struct DeploymentManager {
    /// Deployment strategies
    strategies: Vec<DeploymentStrategy>,
}
impl DeploymentManager {
    /// Create a new deployment manager
    pub fn new() -> Self {
        Self {
            strategies: Vec::new(),
        }
    }
    /// Add deployment strategy
    pub fn add_strategy(&mut self, strategy: DeploymentStrategy) {
        self.strategies.push(strategy);
    }
    /// Get all strategies
    pub fn get_strategies(&self) -> &[DeploymentStrategy] {
        &self.strategies
    }
    /// Clear all strategies
    pub fn clear(&mut self) {
        self.strategies.clear();
    }
}
impl Default for DeploymentManager {
    fn default() -> Self {
        Self::new()
    }
}
/// Deployment strategy selector
pub struct DeploymentStrategySelector {
    /// Manager instance
    manager: DeploymentManager,
}
impl DeploymentStrategySelector {
    /// Create a new strategy selector
    pub fn new() -> Self {
        Self {
            manager: DeploymentManager::new(),
        }
    }
    /// Select and create deployment strategy based on configuration
    pub fn select_strategy(
        &mut self,
        config: &DeploymentConfig,
    ) -> Result<DeploymentStrategy, Error> {
        match config.strategy.to_lowercase().as_str() {
            "blue-green" | "blue_green" => {
                let strategy: _ = BlueGreenDeployment::new(
                    config.service_name.clone(),
                    config.environment.clone(),
                    config.current_version.clone(),
                    config.next_version.clone(),
                );
                Ok(DeploymentStrategy::BlueGreen(strategy))
            }
            "canary" => {
                let traffic_split: _ = config
                    .parameters
                    .get("traffic_split")
                    .and_then(|s| s.parse().ok())
                    .unwrap_or(10);
                let mut strategy = CanaryDeployment::new(
                    config.service_name.clone(),
                    config.environment.clone(),
                    config.current_version.clone(),
                    config.next_version.clone(),
                    traffic_split,
                );
                if let Some(threshold) = config.parameters.get("promotion_threshold") {
                    if let Ok(t) = threshold.parse() {
                        strategy = strategy.promotion_threshold(t);
                    }
                }
                if let Some(interval) = config.parameters.get("health_check_interval") {
                    if let Ok(i) = interval.parse() {
                        strategy = strategy.health_check_interval(i);
                    }
                }
                Ok(DeploymentStrategy::Canary(strategy))
            }
            "rolling" => {
                let mut strategy = RollingDeployment::new(
                    config.service_name.clone(),
                    config.environment.clone(),
                    config.current_version.clone(),
                    config.next_version.clone(),
                );
                if let Some(max_unavailable) = config.parameters.get("max_unavailable") {
                    if let Ok(m) = max_unavailable.parse() {
                        strategy = strategy.max_unavailable(m);
                    }
                }
                if let Some(max_surge) = config.parameters.get("max_surge") {
                    if let Ok(m) = max_surge.parse() {
                        strategy = strategy.max_surge(m);
                    }
                }
                if let Some(min_ready) = config.parameters.get("min_ready_seconds") {
                    if let Ok(m) = min_ready.parse() {
                        strategy = strategy.min_ready_seconds(m);
                    }
                }
                Ok(DeploymentStrategy::Rolling(strategy))
            }
            _ => Err(Error::InvalidStrategy {
                strategy: config.strategy.clone(),
            }),
        }
    }
    /// Execute deployment with selected strategy
    pub fn execute_deployment(
        &mut self,
        config: &DeploymentConfig,
    ) -> Result<DeploymentStatus, Error> {
        let strategy: _ = self.select_strategy(config)?;
        let result: _ = strategy.execute();
        if result.is_ok() {
            self.manager.add_strategy(strategy);
        }
        result
    }
}
impl Default for DeploymentStrategySelector {
    fn default() -> Self {
        Self::new()
    }
}
/// Error types
#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error("Invalid deployment strategy: {strategy}")]
    InvalidStrategy { strategy: String },
    #[error("Deployment failed: {0}")]
    DeploymentFailed(String),
    #[error("Rollback failed: {0}")]
    RollbackFailed(String),
    #[error("Configuration error: {0}")]
    ConfigurationError(String),
    #[error("Deployment error: {0}")]
    DeploymentError(String),
}
#[cfg(test)]
mod tests {

    use super::*;
    #[test]
    fn test_blue_green_deployment() {
        let deployment: _ = BlueGreenDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
        );
        let result: _ = deployment.execute();
        assert!(result.is_ok());
        if let Ok(status) = result {
            assert!(status.success);
            assert_eq!(status.current_version, "v1.1.0");
        }
    }
    #[test]
    fn test_canary_deployment() {
        let deployment: _ = CanaryDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
            10,
        );
        let result: _ = deployment.execute();
        assert!(result.is_ok());
        if let Ok(status) = result {
            assert!(status.success);
            assert_eq!(status.traffic_split, Some(10));
        }
    }
    #[test]
    fn test_canary_promotion() {
        let deployment: _ = CanaryDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
            10,
        );
        let result: _ = deployment.promote_canary();
        assert!(result.is_ok());
        if let Ok(status) = result {
            assert!(status.success);
            assert_eq!(status.current_version, "v1.1.0");
            assert_eq!(status.traffic_split, Some(100));
        }
    }
    #[test]
    fn test_canary_rollback() {
        let deployment: _ = CanaryDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
            10,
        );
        let result: _ = deployment.rollback_canary();
        assert!(result.is_ok());
        if let Ok(status) = result {
            assert!(status.success);
            assert_eq!(status.current_version, "v1.0.0");
            assert_eq!(status.traffic_split, Some(0));
        }
    }
    #[test]
    fn test_rolling_deployment() {
        let deployment: _ = RollingDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
        );
        let result: _ = deployment.execute();
        assert!(result.is_ok());
        if let Ok(status) = result {
            assert!(status.success);
            assert_eq!(status.current_version, "v1.1.0");
        }
    }
    #[test]
    fn test_rolling_deployment_params() {
        let deployment: _ = RollingDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
        )
        .max_unavailable(2)
        .max_surge(2)
        .min_ready_seconds(30);
        assert_eq!(deployment.max_unavailable, 2);
        assert_eq!(deployment.max_surge, 2);
        assert_eq!(deployment.min_ready_seconds, 30);
    }
    #[test]
    fn test_strategy_selection() {
        let mut selector = DeploymentStrategySelector::new();
        let config: _ = DeploymentConfig {
            strategy: "blue-green".to_string(),
            service_name: "amberjs-service".to_string(),
            environment: "production".to_string(),
            current_version: "v1.0.0".to_string(),
            next_version: "v1.1.0".to_string(),
            parameters: std::collections::HashMap::new(),
        };
        let result: _ = selector.select_strategy(&config);
        assert!(result.is_ok());
        assert!(matches!(result.unwrap(), DeploymentStrategy::BlueGreen(_)));
    }
    #[test]
    fn test_canary_strategy_with_params() {
        let mut selector = DeploymentStrategySelector::new();
        let mut params = std::collections::HashMap::new();
        params.insert("traffic_split".to_string(), "20".to_string());
        params.insert("promotion_threshold".to_string(), "99".to_string());
        let config: _ = DeploymentConfig {
            strategy: "canary".to_string(),
            service_name: "amberjs-service".to_string(),
            environment: "production".to_string(),
            current_version: "v1.0.0".to_string(),
            next_version: "v1.1.0".to_string(),
            parameters: params,
        };
        let result: _ = selector.select_strategy(&config);
        assert!(result.is_ok());
        if let Ok(DeploymentStrategy::Canary(canary)) = result {
            assert_eq!(canary.traffic_split, 20);
            assert_eq!(canary.promotion_threshold, 99);
        }
    }
    #[test]
    fn test_invalid_strategy() {
        let selector: _ = DeploymentStrategySelector::new();
        let config: _ = DeploymentConfig {
            strategy: "invalid".to_string(),
            service_name: "amberjs-service".to_string(),
            environment: "production".to_string(),
            current_version: "v1.0.0".to_string(),
            next_version: "v1.1.0".to_string(),
            parameters: std::collections::HashMap::new(),
        };
        let result: _ = selector.select_strategy(&config);
        assert!(result.is_err());
    }
    #[test]
    fn test_deployment_manager() {
        let mut manager = DeploymentManager::new();
        let strategy: _ = BlueGreenDeployment::new(
            "amberjs-service".to_string(),
            "production".to_string(),
            "v1.0.0".to_string(),
            "v1.1.0".to_string(),
        );
        manager.add_strategy(DeploymentStrategy::BlueGreen(strategy));
        assert_eq!(manager.get_strategies().len(), 1);
    }
}
use std::collections::{BTreeMap, HashMap};