trustformers-debug 0.1.1

//! Sustainability advisor and goal tracking for environmental monitoring

use crate::environmental_monitor::types::*;
use anyhow::Result;
use std::time::{Duration, SystemTime};
use tracing::{info, warn};

/// Sustainability advisor and reporting system
#[derive(Debug)]
pub struct SustainabilityAdvisor {
    sustainability_goals: Vec<SustainabilityGoal>,
    progress_tracking: ProgressTracker,
    best_practices: Vec<BestPractice>,
    certification_requirements: Vec<CertificationRequirement>,
}

#[derive(Debug, Clone)]
pub struct ProgressTracker {
    weekly_progress: Vec<ProgressMeasurement>,
    monthly_progress: Vec<ProgressMeasurement>,
    yearly_progress: Vec<ProgressMeasurement>,
}

#[derive(Debug, Clone)]
#[allow(dead_code)]
struct CertificationRequirement {
    certification_name: String,
    #[allow(dead_code)]
    requirements: Vec<String>,
    current_compliance: f64,
    required_compliance: f64,
}

impl SustainabilityAdvisor {
    /// Create a new sustainability advisor
    pub fn new() -> Self {
        Self {
            sustainability_goals: Vec::new(),
            progress_tracking: ProgressTracker {
                weekly_progress: Vec::new(),
                monthly_progress: Vec::new(),
                yearly_progress: Vec::new(),
            },
            best_practices: Self::initialize_best_practices(),
            certification_requirements: Self::initialize_certification_requirements(),
        }
    }

    /// Initialize default sustainability goals
    pub async fn initialize_sustainability_goals(&mut self) -> Result<()> {
        self.sustainability_goals = vec![
            SustainabilityGoal {
                goal_type: GoalType::CarbonReduction,
                target_value: 50.0, // 50% reduction
                current_value: 0.0,
                target_date: SystemTime::now() + Duration::from_secs(365 * 24 * 3600),
                description: "Reduce Training Carbon Footprint by 50%".to_string(),
            },
            SustainabilityGoal {
                goal_type: GoalType::EnergyEfficiency,
                target_value: 30.0, // 30% improvement
                current_value: 0.0,
                target_date: SystemTime::now() + Duration::from_secs(180 * 24 * 3600),
                description: "Improve Energy Efficiency by 30%".to_string(),
            },
            SustainabilityGoal {
                goal_type: GoalType::RenewableEnergy,
                target_value: 75.0,  // 75% renewable energy
                current_value: 30.0, // Starting at 30%
                target_date: SystemTime::now() + Duration::from_secs(730 * 24 * 3600), // 2 years
                description: "Achieve 75% Renewable Energy Usage".to_string(),
            },
            SustainabilityGoal {
                goal_type: GoalType::WasteReduction,
                target_value: 40.0, // 40% waste reduction
                current_value: 0.0,
                target_date: SystemTime::now() + Duration::from_secs(365 * 24 * 3600),
                description: "Reduce Energy Waste by 40%".to_string(),
            },
        ];

        info!(
            "Initialized {} sustainability goals",
            self.sustainability_goals.len()
        );
        Ok(())
    }

    /// Add a custom sustainability goal
    pub fn add_sustainability_goal(&mut self, goal: SustainabilityGoal) {
        info!("Added new sustainability goal: {}", goal.description);
        self.sustainability_goals.push(goal);
    }

    /// Update progress on sustainability goals
    pub async fn update_goal_progress(
        &mut self,
        goal_type: GoalType,
        current_value: f64,
    ) -> Result<()> {
        for goal in &mut self.sustainability_goals {
            if goal.goal_type == goal_type {
                goal.current_value = current_value;

                // Calculate progress percentage
                let progress = if goal.target_value > 0.0 {
                    (current_value / goal.target_value * 100.0).min(100.0)
                } else {
                    0.0
                };

                info!(
                    "Updated goal '{}' progress to {:.1}%",
                    goal.description, progress
                );
            }
        }

        Ok(())
    }

    /// Get current sustainability goals
    pub fn get_sustainability_goals(&self) -> &[SustainabilityGoal] {
        &self.sustainability_goals
    }

    /// Get sustainability recommendations
    pub async fn get_sustainability_recommendations(
        &self,
    ) -> Result<Vec<SustainabilityRecommendation>> {
        let mut recommendations = Vec::new();

        // Analyze current goals and provide recommendations
        for goal in &self.sustainability_goals {
            let progress_percentage = if goal.target_value > 0.0 {
                (goal.current_value / goal.target_value * 100.0).min(100.0)
            } else {
                0.0
            };

            if progress_percentage < 25.0 {
                let recommendation = self.generate_goal_recommendation(goal).await?;
                recommendations.push(recommendation);
            }
        }

        // Add general best practice recommendations
        let best_practice_recommendations = self.get_best_practice_recommendations().await?;
        recommendations.extend(best_practice_recommendations);

        // Add regional optimization recommendations
        if let Some(regional_rec) = self.get_regional_optimization_recommendation().await? {
            recommendations.push(regional_rec);
        }

        Ok(recommendations)
    }

    /// Generate recommendation for a specific goal
    async fn generate_goal_recommendation(
        &self,
        goal: &SustainabilityGoal,
    ) -> Result<SustainabilityRecommendation> {
        let (category, priority, title, description, implementation_steps) = match goal.goal_type {
            GoalType::CarbonReduction => (
                RecommendationCategory::Carbon,
                RecommendationPriority::High,
                "Accelerate Carbon Footprint Reduction".to_string(),
                "Implement immediate measures to reduce carbon emissions from training and inference".to_string(),
                vec![
                    "Schedule training during low-carbon intensity hours".to_string(),
                    "Implement model compression techniques".to_string(),
                    "Consider carbon-efficient hardware upgrades".to_string(),
                    "Optimize batch sizes for better GPU utilization".to_string(),
                ],
            ),
            GoalType::EnergyEfficiency => (
                RecommendationCategory::Energy,
                RecommendationPriority::High,
                "Boost Energy Efficiency".to_string(),
                "Implement advanced energy optimization techniques to improve overall efficiency".to_string(),
                vec![
                    "Enable mixed precision training".to_string(),
                    "Implement gradient checkpointing".to_string(),
                    "Optimize model architecture for efficiency".to_string(),
                    "Use dynamic voltage and frequency scaling".to_string(),
                ],
            ),
            GoalType::RenewableEnergy => (
                RecommendationCategory::Sustainability,
                RecommendationPriority::Medium,
                "Increase Renewable Energy Usage".to_string(),
                "Transition to renewable energy sources for compute workloads".to_string(),
                vec![
                    "Negotiate renewable energy contracts".to_string(),
                    "Schedule workloads in high-renewable regions".to_string(),
                    "Invest in on-site renewable energy generation".to_string(),
                    "Purchase renewable energy certificates".to_string(),
                ],
            ),
            GoalType::WasteReduction => (
                RecommendationCategory::Performance,
                RecommendationPriority::Medium,
                "Eliminate Energy Waste".to_string(),
                "Identify and eliminate sources of energy waste in compute operations".to_string(),
                vec![
                    "Implement automatic resource shutdown".to_string(),
                    "Optimize cooling systems efficiency".to_string(),
                    "Monitor and eliminate idle resource usage".to_string(),
                    "Implement smart workload scheduling".to_string(),
                ],
            ),
            GoalType::CustomGoal(_) => (
                RecommendationCategory::Sustainability,
                RecommendationPriority::Medium,
                "Advance Custom Sustainability Goal".to_string(),
                "Take specific actions to advance your custom sustainability objectives".to_string(),
                vec![
                    "Review and adjust goal metrics".to_string(),
                    "Implement targeted optimization measures".to_string(),
                    "Monitor progress regularly".to_string(),
                ],
            ),
        };

        Ok(SustainabilityRecommendation {
            category,
            priority,
            title,
            description,
            potential_impact: format!(
                "Could help achieve {:.1}% of target",
                (goal.target_value - goal.current_value) * 0.2
            ), // Assume 20% progress
            implementation_steps,
        })
    }

    /// Get best practice recommendations
    async fn get_best_practice_recommendations(&self) -> Result<Vec<SustainabilityRecommendation>> {
        let mut recommendations = Vec::new();

        for practice in &self.best_practices {
            if practice.impact_category == ImpactCategory::High
                && practice.implementation_effort != ImplementationEffort::VeryHigh
            {
                let recommendation = SustainabilityRecommendation {
                    category: RecommendationCategory::Sustainability,
                    priority: match practice.impact_category {
                        ImpactCategory::High => RecommendationPriority::High,
                        ImpactCategory::Medium => RecommendationPriority::Medium,
                        ImpactCategory::Low => RecommendationPriority::Low,
                    },
                    title: practice.title.clone(),
                    description: practice.description.clone(),
                    potential_impact: format!(
                        "{:.1}% potential improvement",
                        practice
                            .estimated_savings
                            .as_ref()
                            .map(|s| s.efficiency_improvement_percent)
                            .unwrap_or(10.0)
                    ),
                    implementation_steps: vec![
                        "Assess current implementation status".to_string(),
                        "Plan implementation approach".to_string(),
                        "Execute implementation".to_string(),
                        "Monitor results and adjust".to_string(),
                    ],
                };
                recommendations.push(recommendation);
            }
        }

        Ok(recommendations)
    }

    /// Get regional optimization recommendation
    async fn get_regional_optimization_recommendation(
        &self,
    ) -> Result<Option<SustainabilityRecommendation>> {
        // This would be customized based on current region configuration
        // For now, return a general recommendation
        Ok(Some(SustainabilityRecommendation {
            category: RecommendationCategory::Sustainability,
            priority: RecommendationPriority::Medium,
            title: "Consider Regional Workload Distribution".to_string(),
            description: "Optimize workload placement based on regional carbon intensity and renewable energy availability".to_string(),
            potential_impact: "Up to 40% carbon reduction possible".to_string(),
            implementation_steps: vec![
                "Analyze regional carbon intensity patterns".to_string(),
                "Identify low-carbon regions for workload migration".to_string(),
                "Implement multi-region scheduling".to_string(),
                "Monitor carbon impact of regional distribution".to_string(),
            ],
        }))
    }

    /// Record progress measurement
    pub fn record_progress(&mut self, measurement: ProgressMeasurement) {
        match measurement.period.as_str() {
            "weekly" => self.progress_tracking.weekly_progress.push(measurement),
            "monthly" => self.progress_tracking.monthly_progress.push(measurement),
            "yearly" => self.progress_tracking.yearly_progress.push(measurement),
            _ => {
                warn!("Unknown progress period: {}", measurement.period);
            },
        }

        // Keep only recent measurements (limit to 52 weeks, 12 months, 5 years)
        if self.progress_tracking.weekly_progress.len() > 52 {
            self.progress_tracking.weekly_progress.remove(0);
        }
        if self.progress_tracking.monthly_progress.len() > 12 {
            self.progress_tracking.monthly_progress.remove(0);
        }
        if self.progress_tracking.yearly_progress.len() > 5 {
            self.progress_tracking.yearly_progress.remove(0);
        }
    }

    /// Get progress tracking data
    pub fn get_progress_tracking(&self) -> &ProgressTracker {
        &self.progress_tracking
    }

    /// Get best practices
    pub fn get_best_practices(&self) -> &[BestPractice] {
        &self.best_practices
    }

    /// Check certification compliance
    pub fn check_certification_compliance(&self) -> Vec<(String, f64)> {
        self.certification_requirements
            .iter()
            .map(|cert| (cert.certification_name.clone(), cert.current_compliance))
            .collect()
    }

    /// Initialize default best practices
    fn initialize_best_practices() -> Vec<BestPractice> {
        vec![
            BestPractice {
                title: "Implement Mixed Precision Training".to_string(),
                description: "Use FP16 precision where possible to reduce energy consumption"
                    .to_string(),
                impact_category: ImpactCategory::High,
                implementation_effort: ImplementationEffort::Low,
                estimated_savings: Some(ProjectedSavings {
                    energy_savings_kwh: 25.0,
                    cost_savings_usd: 3.0,
                    carbon_reduction_kg: 10.0,
                    efficiency_improvement_percent: 20.0,
                }),
            },
            BestPractice {
                title: "Optimize Batch Sizes".to_string(),
                description: "Use optimal batch sizes to maximize GPU utilization".to_string(),
                impact_category: ImpactCategory::High,
                implementation_effort: ImplementationEffort::Low,
                estimated_savings: Some(ProjectedSavings {
                    energy_savings_kwh: 15.0,
                    cost_savings_usd: 1.8,
                    carbon_reduction_kg: 6.0,
                    efficiency_improvement_percent: 15.0,
                }),
            },
            BestPractice {
                title: "Schedule Training During Low-Carbon Hours".to_string(),
                description: "Time training runs to coincide with low grid carbon intensity"
                    .to_string(),
                impact_category: ImpactCategory::High,
                implementation_effort: ImplementationEffort::Medium,
                estimated_savings: Some(ProjectedSavings {
                    energy_savings_kwh: 0.0,
                    cost_savings_usd: 5.0,
                    carbon_reduction_kg: 20.0,
                    efficiency_improvement_percent: 0.0,
                }),
            },
            BestPractice {
                title: "Implement Model Pruning".to_string(),
                description:
                    "Remove unnecessary model parameters to reduce computational requirements"
                        .to_string(),
                impact_category: ImpactCategory::Medium,
                implementation_effort: ImplementationEffort::High,
                estimated_savings: Some(ProjectedSavings {
                    energy_savings_kwh: 40.0,
                    cost_savings_usd: 4.8,
                    carbon_reduction_kg: 16.0,
                    efficiency_improvement_percent: 30.0,
                }),
            },
            BestPractice {
                title: "Use Gradient Checkpointing".to_string(),
                description: "Trade computation for memory to enable larger models or batch sizes"
                    .to_string(),
                impact_category: ImpactCategory::Medium,
                implementation_effort: ImplementationEffort::Low,
                estimated_savings: Some(ProjectedSavings {
                    energy_savings_kwh: 12.0,
                    cost_savings_usd: 1.44,
                    carbon_reduction_kg: 4.8,
                    efficiency_improvement_percent: 10.0,
                }),
            },
        ]
    }

    /// Initialize certification requirements
    fn initialize_certification_requirements() -> Vec<CertificationRequirement> {
        vec![
            CertificationRequirement {
                certification_name: "ISO 14001 Environmental Management".to_string(),
                requirements: vec![
                    "Environmental policy documented".to_string(),
                    "Environmental objectives set".to_string(),
                    "Environmental monitoring system".to_string(),
                    "Regular environmental audits".to_string(),
                ],
                current_compliance: 65.0,
                required_compliance: 100.0,
            },
            CertificationRequirement {
                certification_name: "Energy Star for Data Centers".to_string(),
                requirements: vec![
                    "PUE measurement and reporting".to_string(),
                    "Energy efficiency benchmarking".to_string(),
                    "Continuous monitoring".to_string(),
                    "Annual improvement targets".to_string(),
                ],
                current_compliance: 45.0,
                required_compliance: 80.0,
            },
            CertificationRequirement {
                certification_name: "Carbon Trust Standard".to_string(),
                requirements: vec![
                    "Carbon footprint measurement".to_string(),
                    "Emission reduction commitments".to_string(),
                    "Third-party verification".to_string(),
                    "Annual reduction achievements".to_string(),
                ],
                current_compliance: 30.0,
                required_compliance: 90.0,
            },
        ]
    }

    /// Update certification compliance
    pub fn update_certification_compliance(&mut self, certification_name: &str, compliance: f64) {
        for cert in &mut self.certification_requirements {
            if cert.certification_name == certification_name {
                cert.current_compliance = compliance.max(0.0).min(100.0);
                info!(
                    "Updated {} compliance to {:.1}%",
                    certification_name, cert.current_compliance
                );
                return;
            }
        }
        warn!("Certification '{}' not found", certification_name);
    }

    /// Get goals nearing their target date
    pub fn get_urgent_goals(&self) -> Vec<&SustainabilityGoal> {
        let now = SystemTime::now();
        let thirty_days = Duration::from_secs(30 * 24 * 3600);

        self.sustainability_goals
            .iter()
            .filter(|goal| {
                if let Ok(time_remaining) = goal.target_date.duration_since(now) {
                    time_remaining < thirty_days
                } else {
                    true // Goal is overdue
                }
            })
            .collect()
    }

    /// Calculate overall sustainability score
    pub fn calculate_sustainability_score(&self) -> f64 {
        if self.sustainability_goals.is_empty() {
            return 0.0;
        }

        let total_progress: f64 = self
            .sustainability_goals
            .iter()
            .map(|goal| {
                if goal.target_value > 0.0 {
                    (goal.current_value / goal.target_value * 100.0).min(100.0)
                } else {
                    0.0
                }
            })
            .sum();

        (total_progress / self.sustainability_goals.len() as f64) / 100.0
    }
}

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

    #[test]
    fn test_sustainability_advisor_creation() {
        let advisor = SustainabilityAdvisor::new();
        assert!(!advisor.best_practices.is_empty());
        assert!(!advisor.certification_requirements.is_empty());
    }

    #[tokio::test]
    async fn test_goal_initialization() {
        let mut advisor = SustainabilityAdvisor::new();
        advisor.initialize_sustainability_goals().await.expect("async operation failed");

        assert!(!advisor.sustainability_goals.is_empty());
        assert!(advisor
            .sustainability_goals
            .iter()
            .any(|g| g.goal_type == GoalType::CarbonReduction));
        assert!(advisor
            .sustainability_goals
            .iter()
            .any(|g| g.goal_type == GoalType::EnergyEfficiency));
    }

    #[tokio::test]
    async fn test_goal_progress_update() {
        let mut advisor = SustainabilityAdvisor::new();
        advisor.initialize_sustainability_goals().await.expect("async operation failed");

        advisor
            .update_goal_progress(GoalType::CarbonReduction, 25.0)
            .await
            .expect("async operation failed");

        let carbon_goal = advisor
            .sustainability_goals
            .iter()
            .find(|g| g.goal_type == GoalType::CarbonReduction)
            .expect("operation failed in test");

        assert_eq!(carbon_goal.current_value, 25.0);
    }

    #[tokio::test]
    async fn test_sustainability_recommendations() {
        let mut advisor = SustainabilityAdvisor::new();
        advisor.initialize_sustainability_goals().await.expect("async operation failed");

        let recommendations = advisor
            .get_sustainability_recommendations()
            .await
            .expect("async operation failed");
        assert!(!recommendations.is_empty());

        // Should have recommendations for goals with low progress
        assert!(recommendations.iter().any(|r| r.category == RecommendationCategory::Carbon));
        assert!(recommendations.iter().any(|r| r.category == RecommendationCategory::Energy));
    }

    #[test]
    fn test_sustainability_score_calculation() {
        let mut advisor = SustainabilityAdvisor::new();

        // Add some test goals with known progress
        advisor.sustainability_goals = vec![
            SustainabilityGoal {
                goal_type: GoalType::CarbonReduction,
                target_value: 100.0,
                current_value: 50.0, // 50% progress
                target_date: SystemTime::now(),
                description: "Test goal 1".to_string(),
            },
            SustainabilityGoal {
                goal_type: GoalType::EnergyEfficiency,
                target_value: 100.0,
                current_value: 30.0, // 30% progress
                target_date: SystemTime::now(),
                description: "Test goal 2".to_string(),
            },
        ];

        let score = advisor.calculate_sustainability_score();
        assert!((score - 0.4).abs() < 0.01); // Should be 40% = 0.4
    }

    #[test]
    fn test_urgent_goals() {
        let mut advisor = SustainabilityAdvisor::new();
        let past_date = SystemTime::now() - Duration::from_secs(24 * 3600); // Yesterday
        let future_date = SystemTime::now() + Duration::from_secs(60 * 24 * 3600); // 60 days from now

        advisor.sustainability_goals = vec![
            SustainabilityGoal {
                goal_type: GoalType::CarbonReduction,
                target_value: 100.0,
                current_value: 50.0,
                target_date: past_date, // Overdue
                description: "Urgent goal".to_string(),
            },
            SustainabilityGoal {
                goal_type: GoalType::EnergyEfficiency,
                target_value: 100.0,
                current_value: 30.0,
                target_date: future_date, // Not urgent
                description: "Future goal".to_string(),
            },
        ];

        let urgent_goals = advisor.get_urgent_goals();
        assert_eq!(urgent_goals.len(), 1);
        assert_eq!(urgent_goals[0].description, "Urgent goal");
    }

    #[test]
    fn test_progress_recording() {
        let mut advisor = SustainabilityAdvisor::new();

        let weekly_progress = ProgressMeasurement {
            timestamp: SystemTime::now(),
            goal_type: GoalType::CarbonReduction,
            current_value: 25.0,
            progress_percentage: 50.0,
            trend: TrendDirection::Decreasing,
            period: "weekly".to_string(),
        };

        advisor.record_progress(weekly_progress);
        assert_eq!(advisor.progress_tracking.weekly_progress.len(), 1);
    }

    #[test]
    fn test_certification_compliance() {
        let mut advisor = SustainabilityAdvisor::new();

        advisor.update_certification_compliance("ISO 14001 Environmental Management", 85.0);

        let compliance = advisor.check_certification_compliance();
        let iso_compliance =
            compliance.iter().find(|(name, _)| name == "ISO 14001 Environmental Management");

        assert!(iso_compliance.is_some());
        assert_eq!(iso_compliance.expect("operation failed in test").1, 85.0);
    }
}