systemprompt_traits/
domain_config.rs

1//! Per-domain configuration loading and validation.
2//!
3//! Each domain crate registers a [`DomainConfig`] implementation in the
4//! [`DomainConfigRegistry`]; the runtime walks the registry at startup,
5//! ordered by [`DomainConfig::priority`], to load and validate domain
6//! configuration.
7
8use std::fmt::Debug;
9
10use crate::context::ConfigProvider;
11use crate::validation_report::ValidationReport;
12
13#[derive(Debug, thiserror::Error)]
14#[non_exhaustive]
15pub enum DomainConfigError {
16    #[error("Failed to load config: {0}")]
17    LoadError(String),
18
19    #[error("Config file not found: {0}")]
20    NotFound(String),
21
22    #[error("Failed to parse config: {0}")]
23    ParseError(String),
24
25    #[error("Validation failed: {0}")]
26    ValidationError(String),
27}
28
29pub trait DomainConfig: Send + Sync + Debug {
30    fn domain_id(&self) -> &'static str;
31
32    fn load(&mut self, config: &dyn ConfigProvider) -> Result<(), DomainConfigError>;
33
34    fn validate(&self) -> Result<ValidationReport, DomainConfigError>;
35
36    fn dependencies(&self) -> &[&'static str] {
37        &[]
38    }
39
40    fn priority(&self) -> u32 {
41        100
42    }
43}
44
45pub struct DomainConfigRegistry {
46    validators: Vec<Box<dyn DomainConfig>>,
47}
48
49impl DomainConfigRegistry {
50    #[must_use]
51    pub fn new() -> Self {
52        Self {
53            validators: Vec::new(),
54        }
55    }
56
57    pub fn register(&mut self, validator: Box<dyn DomainConfig>) {
58        self.validators.push(validator);
59    }
60
61    pub fn validators_sorted(&self) -> Vec<&dyn DomainConfig> {
62        let mut validators: Vec<_> = self.validators.iter().map(AsRef::as_ref).collect();
63        validators.sort_by_key(|v| v.priority());
64        validators
65    }
66
67    pub fn validators_mut(&mut self) -> impl Iterator<Item = &mut Box<dyn DomainConfig>> {
68        self.validators.sort_by_key(|v| v.priority());
69        self.validators.iter_mut()
70    }
71}
72
73impl Default for DomainConfigRegistry {
74    fn default() -> Self {
75        Self::new()
76    }
77}
78
79impl Debug for DomainConfigRegistry {
80    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
81        f.debug_struct("DomainConfigRegistry")
82            .field("validator_count", &self.validators.len())
83            .finish()
84    }
85}
systemprompt_traits/domain_config.rs

systemprompt_traits/
domain_config.rs
