baqup_schema/
lib.rs

1//! # baqup-schema
2//!
3//! JSON Schema validation and environment variable loading for baqup agent configuration.
4//!
5//! > ⚠️ **This is a placeholder crate.** Full implementation coming soon.
6//!
7//! ## What is baqup?
8//!
9//! [baqup](https://github.com/baqupio/baqup) is a container-native backup orchestration system.
10//! This crate provides schema validation for agent configuration.
11//!
12//! ## Planned Features
13//!
14//! - JSON Schema validation (draft-2020-12)
15//! - Environment variable loading with type coercion
16//! - Custom format validators (`path`, `hostname`, etc.)
17//!
18//! ## Example (Preview API)
19//!
20//! ```rust,ignore
21//! use baqup_schema::{validate, load_from_env};
22//!
23//! // Load and validate from environment variables
24//! let config = load_from_env("agent-schema.json")?;
25//!
26//! // Or validate an existing value
27//! let result = validate(&schema, &config)?;
28//! ```
29
30use std::collections::HashMap;
31use thiserror::Error;
32
33/// Crate version
34pub const VERSION: &str = env!("CARGO_PKG_VERSION");
35
36/// Validation error
37#[derive(Error, Debug)]
38pub enum SchemaError {
39    #[error("Placeholder: {0}")]
40    Placeholder(String),
41
42    #[error("Validation failed: {0}")]
43    ValidationFailed(String),
44
45    #[error("IO error: {0}")]
46    Io(#[from] std::io::Error),
47
48    #[error("JSON error: {0}")]
49    Json(#[from] serde_json::Error),
50}
51
52/// A single validation error
53#[derive(Debug, Clone)]
54pub struct ValidationError {
55    /// JSON path to the error location
56    pub path: String,
57    /// Error message
58    pub message: String,
59    /// JSON Schema keyword that failed
60    pub keyword: String,
61}
62
63/// Result of schema validation
64#[derive(Debug)]
65pub struct ValidationResult {
66    /// Whether validation passed
67    pub valid: bool,
68    /// List of validation errors (if any)
69    pub errors: Option<Vec<ValidationError>>,
70}
71
72const PLACEHOLDER_MESSAGE: &str = concat!(
73    "baqup-schema is currently a placeholder crate. ",
74    "Full implementation coming soon. ",
75    "See https://github.com/baqupio/baqup for updates."
76);
77
78/// Validate a configuration against a baqup agent schema.
79///
80/// # Arguments
81///
82/// * `schema` - The JSON Schema value
83/// * `config` - The configuration value to validate
84///
85/// # Returns
86///
87/// ValidationResult with any errors
88///
89/// # Errors
90///
91/// Returns `SchemaError::Placeholder` - this is a placeholder crate
92pub fn validate(
93    _schema: &serde_json::Value,
94    _config: &serde_json::Value,
95) -> Result<ValidationResult, SchemaError> {
96    Err(SchemaError::Placeholder(PLACEHOLDER_MESSAGE.to_string()))
97}
98
99/// Load configuration from environment variables based on schema.
100///
101/// # Arguments
102///
103/// * `schema_path` - Path to the JSON Schema file
104///
105/// # Returns
106///
107/// The loaded and validated configuration as a HashMap
108///
109/// # Errors
110///
111/// Returns `SchemaError::Placeholder` - this is a placeholder crate
112pub fn load_from_env(
113    _schema_path: &str,
114) -> Result<HashMap<String, serde_json::Value>, SchemaError> {
115    Err(SchemaError::Placeholder(PLACEHOLDER_MESSAGE.to_string()))
116}
117
118#[cfg(test)]
119mod tests {
120    use super::*;
121
122    #[test]
123    fn test_placeholder_validate() {
124        let schema = serde_json::json!({});
125        let config = serde_json::json!({});
126        let result = validate(&schema, &config);
127        assert!(result.is_err());
128    }
129
130    #[test]
131    fn test_placeholder_load() {
132        let result = load_from_env("test.json");
133        assert!(result.is_err());
134    }
135}
baqup_schema/lib.rs

baqup_schema/
lib.rs
