bss_oss_policy_engine/
engine.rs

1//! Main Policy Engine
2
3use crate::bundling::BundleRule;
4use crate::eligibility::EligibilityRule;
5use crate::network::NetworkSelectionPolicy;
6use crate::sla::SLAPolicy;
7use async_trait::async_trait;
8
9/// Policy engine interface
10#[async_trait]
11pub trait PolicyEngineTrait: Send + Sync {
12    /// Evaluate pricing policy
13    async fn evaluate_pricing(
14        &self,
15        policy: &PricingPolicy,
16        context: &PricingContext,
17    ) -> Result<PricingResult, PolicyError>;
18
19    /// Check eligibility
20    async fn check_eligibility(
21        &self,
22        rule: &EligibilityRule,
23        context: &EligibilityContext,
24    ) -> Result<bool, PolicyError>;
25
26    /// Evaluate bundle rules
27    async fn evaluate_bundle(
28        &self,
29        rule: &BundleRule,
30        context: &BundleContext,
31    ) -> Result<BundleResult, PolicyError>;
32
33    /// Get SLA policy
34    async fn get_sla(&self, service_type: &str) -> Result<SLAPolicy, PolicyError>;
35
36    /// Select network
37    async fn select_network(
38        &self,
39        policy: &NetworkSelectionPolicy,
40        context: &NetworkContext,
41    ) -> Result<NetworkSelection, PolicyError>;
42}
43
44/// Policy engine implementation
45pub struct PolicyEngine {
46    // In production, load policies from database or configuration
47}
48
49impl PolicyEngine {
50    pub fn new() -> Self {
51        Self {}
52    }
53}
54
55#[async_trait]
56impl PolicyEngineTrait for PolicyEngine {
57    async fn evaluate_pricing(
58        &self,
59        _policy: &PricingPolicy,
60        _context: &PricingContext,
61    ) -> Result<PricingResult, PolicyError> {
62        // TODO: Implement pricing evaluation
63        Err(PolicyError::NotImplemented)
64    }
65
66    async fn check_eligibility(
67        &self,
68        _rule: &EligibilityRule,
69        _context: &EligibilityContext,
70    ) -> Result<bool, PolicyError> {
71        // TODO: Implement eligibility check
72        Err(PolicyError::NotImplemented)
73    }
74
75    async fn evaluate_bundle(
76        &self,
77        _rule: &BundleRule,
78        _context: &BundleContext,
79    ) -> Result<BundleResult, PolicyError> {
80        // TODO: Implement bundle evaluation
81        Err(PolicyError::NotImplemented)
82    }
83
84    async fn get_sla(&self, _service_type: &str) -> Result<SLAPolicy, PolicyError> {
85        // TODO: Implement SLA retrieval
86        Err(PolicyError::NotImplemented)
87    }
88
89    async fn select_network(
90        &self,
91        _policy: &NetworkSelectionPolicy,
92        _context: &NetworkContext,
93    ) -> Result<NetworkSelection, PolicyError> {
94        // TODO: Implement network selection
95        Err(PolicyError::NotImplemented)
96    }
97}
98
99impl Default for PolicyEngine {
100    fn default() -> Self {
101        Self::new()
102    }
103}
104
105// Placeholder types - to be implemented in respective modules
106pub struct PricingPolicy;
107pub struct PricingContext;
108pub struct PricingResult;
109pub struct EligibilityContext;
110pub struct BundleContext;
111pub struct BundleResult;
112pub struct NetworkContext;
113pub struct NetworkSelection;
114
115/// Policy errors
116#[derive(Debug, thiserror::Error)]
117pub enum PolicyError {
118    #[error("Policy not found")]
119    PolicyNotFound,
120    #[error("Invalid policy configuration")]
121    InvalidConfiguration,
122    #[error("Evaluation error: {0}")]
123    EvaluationError(String),
124    #[error("Not implemented")]
125    NotImplemented,
126}
bss_oss_policy_engine/engine.rs

bss_oss_policy_engine/
engine.rs
