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use serde::{Deserialize, Serialize};
/// Response listing available models.
#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize)]
pub struct ModelsListResponse {
/// Always `"list"` from OpenAI-compatible APIs. Stored as a plain
/// `String` so non-standard provider values do not break deserialization.
/// Defaults to empty when a provider omits the field.
#[serde(default)]
pub object: String,
/// List of available models.
pub data: Vec<ModelObject>,
}
/// A model available from the API.
#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize)]
pub struct ModelObject {
/// Model ID (e.g., `"gpt-4o"`, `"claude-3-5-sonnet"`).
pub id: String,
/// Always `"model"` from OpenAI-compatible APIs. Stored as a plain
/// `String` so non-standard provider values do not break deserialization.
/// Defaults to empty when a provider omits the field.
#[serde(default)]
pub object: String,
/// Unix timestamp of model creation (or release date).
///
/// Defaults to `0` when a provider omits it — DeepSeek and some other
/// OpenAI-compatible providers do not return `created` from `/v1/models`.
#[serde(default)]
pub created: u64,
/// Organization or entity that owns the model.
/// Defaults to empty when a provider omits the field.
#[serde(default)]
pub owned_by: String,
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn models_list_deserializes_without_object_field() {
let body = r#"{"data":[{"id":"gpt-4o"}]}"#;
let response: ModelsListResponse =
serde_json::from_str(body).expect("models list without `object` should deserialize");
assert_eq!(response.object, "");
assert_eq!(response.data.len(), 1);
assert_eq!(response.data[0].id, "gpt-4o");
}
#[test]
fn models_list_deserializes_with_object_field() {
let body = r#"{"object":"list","data":[{"id":"gpt-4o","object":"model","owned_by":"openai"}]}"#;
let response: ModelsListResponse = serde_json::from_str(body).expect("standard models list should deserialize");
assert_eq!(response.object, "list");
assert_eq!(response.data.len(), 1);
assert_eq!(response.data[0].owned_by, "openai");
}
}