leptos-helios 0.8.1

//! Data quality monitoring and validation for streaming data

use super::types::*;
use crate::chart_config::*;
use std::collections::HashMap;
use std::time::Instant;

/// Data quality configuration
#[derive(Debug, Clone)]
pub struct DataQualityConfig {
    pub checks: Vec<QualityCheck>,
    pub alert_threshold: f64,
}

/// Quality check types
#[derive(Debug, Clone)]
pub enum QualityCheck {
    RangeCheck(RangeCheckConfig),
    CompletenessCheck(CompletenessCheckConfig),
    ConsistencyCheck(ConsistencyCheckConfig),
    OutlierCheck(OutlierCheckConfig),
}

/// Range check configuration
#[derive(Debug, Clone)]
pub struct RangeCheckConfig {
    pub field: String,
    pub min_value: f64,
    pub max_value: f64,
}

/// Completeness check configuration
#[derive(Debug, Clone)]
pub struct CompletenessCheckConfig {
    pub required_fields: Vec<String>,
    pub threshold: f64,
}

/// Consistency check configuration
#[derive(Debug, Clone)]
pub struct ConsistencyCheckConfig {
    pub field: String,
    pub max_change_rate: f64,
}

/// Outlier check configuration
#[derive(Debug, Clone)]
pub struct OutlierCheckConfig {
    pub field: String,
    pub method: OutlierMethod,
    pub threshold: f64,
}

/// Outlier detection method
#[derive(Debug, Clone)]
pub enum OutlierMethod {
    ZScore,
    IQR,
    IsolationForest,
}

/// Data quality monitor
pub struct DataQualityMonitor {
    config: DataQualityConfig,
    quality_metrics: HashMap<String, f64>,
    issues: Vec<QualityIssue>,
}

/// Quality issue
#[derive(Debug, Clone)]
pub struct QualityIssue {
    pub check_type: String,
    pub severity: QualitySeverity,
    pub message: String,
    pub timestamp: Instant,
}

/// Quality severity
#[derive(Debug, Clone)]
pub enum QualitySeverity {
    Low,
    Medium,
    High,
    Critical,
}

/// Quality report
#[derive(Debug, Clone)]
pub struct QualityReport {
    pub overall_quality: f64,
    pub issues: Vec<QualityIssue>,
    pub metrics: HashMap<String, f64>,
}

impl DataQualityMonitor {
    pub fn new(config: DataQualityConfig) -> Result<Self, ChartRenderError> {
        Ok(Self {
            config,
            quality_metrics: HashMap::new(),
            issues: Vec::new(),
        })
    }

    pub fn check_data_quality(&mut self, data: &DataPoint) -> Result<(), ChartRenderError> {
        let checks = self.config.checks.clone();
        for check in checks {
            match check {
                QualityCheck::RangeCheck(range_config) => {
                    self.check_range(data, &range_config)?;
                }
                QualityCheck::CompletenessCheck(completeness_config) => {
                    self.check_completeness(data, &completeness_config)?;
                }
                QualityCheck::ConsistencyCheck(consistency_config) => {
                    self.check_consistency(data, &consistency_config)?;
                }
                QualityCheck::OutlierCheck(outlier_config) => {
                    self.check_outliers(data, &outlier_config)?;
                }
            }
        }
        Ok(())
    }

    fn check_range(&mut self, _data: &DataPoint, _config: &RangeCheckConfig) -> Result<(), ChartRenderError> {
        // Mock implementation - in real implementation would check value ranges
        Ok(())
    }

    fn check_completeness(&mut self, _data: &DataPoint, _config: &CompletenessCheckConfig) -> Result<(), ChartRenderError> {
        // Mock implementation - in real implementation would check field completeness
        Ok(())
    }

    fn check_consistency(&mut self, _data: &DataPoint, _config: &ConsistencyCheckConfig) -> Result<(), ChartRenderError> {
        // Mock implementation - in real implementation would check data consistency
        Ok(())
    }

    fn check_outliers(&mut self, _data: &DataPoint, _config: &OutlierCheckConfig) -> Result<(), ChartRenderError> {
        // Mock implementation - in real implementation would detect outliers
        Ok(())
    }

    pub fn generate_quality_report(&self) -> QualityReport {
        QualityReport {
            overall_quality: 0.95, // Mock value
            issues: self.issues.clone(),
            metrics: self.quality_metrics.clone(),
        }
    }
}