quantrs2_device/algorithm_marketplace/
marketplace_api.rs

1//! Marketplace API Interface
2//!
3//! This module provides REST API, GraphQL, and WebSocket interfaces
4//! for the quantum algorithm marketplace.
5
6use super::*;
7
8/// Marketplace API manager
9pub struct MarketplaceAPI {
10    config: APIConfig,
11    rest_server: Option<RestAPIServer>,
12    graphql_server: Option<GraphQLServer>,
13    websocket_server: Option<WebSocketServer>,
14    rate_limiter: RateLimiter,
15}
16
17/// REST API server
18pub struct RestAPIServer {
19    pub routes: Vec<APIRoute>,
20    pub middleware: Vec<Box<dyn APIMiddleware + Send + Sync>>,
21}
22
23/// GraphQL server
24pub struct GraphQLServer {
25    pub schema: String,
26    pub resolvers: Vec<Box<dyn GraphQLResolver + Send + Sync>>,
27}
28
29/// WebSocket server
30pub struct WebSocketServer {
31    pub connections: HashMap<String, WebSocketConnection>,
32    pub handlers: Vec<Box<dyn WebSocketHandler + Send + Sync>>,
33}
34
35/// API route definition
36#[derive(Debug, Clone)]
37pub struct APIRoute {
38    pub method: HTTPMethod,
39    pub path: String,
40    pub handler: String,
41    pub authentication_required: bool,
42    pub rate_limit: Option<usize>,
43}
44
45/// HTTP methods
46#[derive(Debug, Clone, PartialEq)]
47pub enum HTTPMethod {
48    GET,
49    POST,
50    PUT,
51    DELETE,
52    PATCH,
53    OPTIONS,
54}
55
56/// API middleware trait
57pub trait APIMiddleware {
58    fn process_request(&self, request: &APIRequest) -> DeviceResult<APIRequest>;
59    fn process_response(&self, response: &APIResponse) -> DeviceResult<APIResponse>;
60}
61
62/// GraphQL resolver trait
63pub trait GraphQLResolver {
64    fn resolve(
65        &self,
66        field: &str,
67        args: &HashMap<String, serde_json::Value>,
68    ) -> DeviceResult<serde_json::Value>;
69}
70
71/// WebSocket handler trait
72pub trait WebSocketHandler {
73    fn on_connect(&self, connection: &WebSocketConnection) -> DeviceResult<()>;
74    fn on_message(&self, connection: &WebSocketConnection, message: &str) -> DeviceResult<()>;
75    fn on_disconnect(&self, connection: &WebSocketConnection) -> DeviceResult<()>;
76}
77
78/// WebSocket connection
79#[derive(Debug, Clone)]
80pub struct WebSocketConnection {
81    pub connection_id: String,
82    pub user_id: Option<String>,
83    pub connected_at: SystemTime,
84    pub last_activity: SystemTime,
85}
86
87/// Rate limiter
88pub struct RateLimiter {
89    config: RateLimitingConfig,
90    user_buckets: HashMap<String, TokenBucket>,
91}
92
93/// Token bucket for rate limiting
94#[derive(Debug, Clone)]
95pub struct TokenBucket {
96    pub capacity: usize,
97    pub tokens: usize,
98    pub refill_rate: usize,
99    pub last_refill: SystemTime,
100}
101
102/// API request
103#[derive(Debug, Clone)]
104pub struct APIRequest {
105    pub method: HTTPMethod,
106    pub path: String,
107    pub headers: HashMap<String, String>,
108    pub body: Option<String>,
109    pub user_id: Option<String>,
110}
111
112/// API response
113#[derive(Debug, Clone)]
114pub struct APIResponse {
115    pub status_code: u16,
116    pub headers: HashMap<String, String>,
117    pub body: Option<String>,
118}
119
120impl MarketplaceAPI {
121    /// Create a new marketplace API
122    pub fn new(config: &APIConfig) -> DeviceResult<Self> {
123        let rest_server = if config.rest_api_enabled {
124            Some(RestAPIServer::new()?)
125        } else {
126            None
127        };
128
129        let graphql_server = if config.graphql_api_enabled {
130            Some(GraphQLServer::new()?)
131        } else {
132            None
133        };
134
135        let websocket_server = if config.websocket_api_enabled {
136            Some(WebSocketServer::new()?)
137        } else {
138            None
139        };
140
141        Ok(Self {
142            config: config.clone(),
143            rest_server,
144            graphql_server,
145            websocket_server,
146            rate_limiter: RateLimiter::new(&config.rate_limiting),
147        })
148    }
149
150    /// Initialize the API
151    pub async fn initialize(&self) -> DeviceResult<()> {
152        // Initialize API servers
153        Ok(())
154    }
155}
156
157impl RestAPIServer {
158    fn new() -> DeviceResult<Self> {
159        Ok(Self {
160            routes: vec![],
161            middleware: vec![],
162        })
163    }
164}
165
166impl GraphQLServer {
167    fn new() -> DeviceResult<Self> {
168        Ok(Self {
169            schema: String::new(),
170            resolvers: vec![],
171        })
172    }
173}
174
175impl WebSocketServer {
176    fn new() -> DeviceResult<Self> {
177        Ok(Self {
178            connections: HashMap::new(),
179            handlers: vec![],
180        })
181    }
182}
183
184impl RateLimiter {
185    fn new(config: &RateLimitingConfig) -> Self {
186        Self {
187            config: config.clone(),
188            user_buckets: HashMap::new(),
189        }
190    }
191}