event-service 0.2.0

Event Service - An event administration microservice that interoperates with the event-matcher crate
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//! Configuration management for the MPI system

use serde::{Deserialize, Serialize};

/// Main configuration structure
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Config {
    /// Server configuration
    pub server: ServerConfig,

    /// Database configuration
    pub database: DatabaseConfig,

    /// Search configuration
    pub search: SearchConfig,

    /// Matching configuration
    pub matching: MatchingConfig,

    /// Observability configuration
    pub observability: ObservabilityConfig,

    /// Streaming configuration
    pub streaming: StreamingConfig,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ServerConfig {
    pub host: String,
    pub port: u16,
    pub grpc_port: u16,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DatabaseConfig {
    pub url: String,
    pub max_connections: u32,
    pub min_connections: u32,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SearchConfig {
    pub index_path: String,
    pub cache_size_mb: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MatchingConfig {
    pub threshold_score: f64,
    pub exact_match_score: f64,
    pub fuzzy_match_score: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ObservabilityConfig {
    pub service_name: String,
    pub otlp_endpoint: String,
    pub log_level: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StreamingConfig {
    pub broker_url: String,
    pub topic: String,
}

impl Default for Config {
    fn default() -> Self {
        Self {
            server: ServerConfig {
                host: "0.0.0.0".to_string(),
                port: 8080,
                grpc_port: 50051,
            },
            database: DatabaseConfig {
                url: "postgres://localhost/event_service".to_string(),
                max_connections: 10,
                min_connections: 2,
            },
            search: SearchConfig {
                index_path: "./data/search_index".to_string(),
                cache_size_mb: 512,
            },
            matching: MatchingConfig {
                threshold_score: 0.85,
                exact_match_score: 1.0,
                fuzzy_match_score: 0.8,
            },
            observability: ObservabilityConfig {
                service_name: "event-service".to_string(),
                otlp_endpoint: "http://localhost:4317".to_string(),
                log_level: "info".to_string(),
            },
            streaming: StreamingConfig {
                broker_url: "localhost:9003".to_string(),
                topic: "event-events".to_string(),
            },
        }
    }
}

impl Config {
    /// Load configuration from environment variables
    pub fn from_env() -> crate::Result<Self> {
        dotenvy::dotenv().ok();
        // TODO: Implement environment variable loading
        Ok(Self::default())
    }
}