omniference 0.1.4

//! Google Gemini API request and response types
//!
//! This module contains all data structures for interacting with Google's Gemini API,
//! including generateContent requests, responses, streaming events, and models API.

use serde::{Deserialize, Serialize};

// ============================================================================
// Gemini API Request Types
// ============================================================================

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiGenerateContentRequest {
    pub contents: Vec<GeminiContent>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tools: Option<Vec<GeminiTool>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_config: Option<GeminiToolConfig>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub system_instruction: Option<GeminiContent>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub generation_config: Option<GeminiGenerationConfig>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub safety_settings: Option<Vec<GeminiSafetySetting>>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct GeminiContent {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub role: Option<String>,
    pub parts: Vec<GeminiPart>,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(untagged)]
pub enum GeminiPart {
    ThoughtText {
        text: String,
        thought: bool,
    },
    Text {
        text: String,
    },
    InlineData {
        #[serde(rename = "inlineData")]
        inline_data: GeminiBlob,
    },
    FileData {
        #[serde(rename = "fileData")]
        file_data: GeminiFileData,
    },
    FunctionCall {
        #[serde(rename = "functionCall")]
        function_call: GeminiFunctionCall,
    },
    FunctionResponse {
        #[serde(rename = "functionResponse")]
        function_response: GeminiFunctionResponse,
    },
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiBlob {
    pub mime_type: String,
    pub data: String, // Base64 encoded
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiFileData {
    pub mime_type: Option<String>,
    pub file_uri: String,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct GeminiFunctionCall {
    pub name: String,
    #[serde(default)]
    pub args: serde_json::Value,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct GeminiFunctionResponse {
    pub name: String,
    pub response: serde_json::Value,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiTool {
    pub function_declarations: Vec<GeminiFunctionDeclaration>,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiFunctionDeclaration {
    pub name: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub description: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub parameters: Option<serde_json::Value>,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiToolConfig {
    pub function_calling_config: GeminiFunctionCallingConfig,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiFunctionCallingConfig {
    pub mode: GeminiFunctionCallingMode,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub allowed_function_names: Option<Vec<String>>,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiFunctionCallingMode {
    ModeUnspecified,
    Auto,
    Any,
    None,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiThinkingConfig {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub thinking_level: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub thinking_budget: Option<i32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub include_thoughts: Option<bool>,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiGenerationConfig {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub stop_sequences: Option<Vec<String>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub response_mime_type: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub response_schema: Option<serde_json::Value>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub candidate_count: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub max_output_tokens: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub temperature: Option<f32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub top_p: Option<f32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub top_k: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub presence_penalty: Option<f32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub frequency_penalty: Option<f32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub seed: Option<i64>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub thinking_config: Option<GeminiThinkingConfig>,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiSafetySetting {
    pub category: GeminiHarmCategory,
    pub threshold: GeminiHarmBlockThreshold,
}

#[derive(Debug, Serialize, Deserialize, Clone)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiHarmCategory {
    HarmCategoryUnspecified,
    HarmCategoryHateSpeech,
    HarmCategorySexuallyExplicit,
    HarmCategoryDangerousContent,
    HarmCategoryHarassment,
    HarmCategoryCivicIntegrity,
}

#[derive(Debug, Serialize)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiHarmBlockThreshold {
    HarmBlockThresholdUnspecified,
    BlockLowAndAbove,
    BlockMediumAndAbove,
    BlockOnlyHigh,
    BlockNone,
    Off,
}

// ============================================================================
// Gemini API Response Types
// ============================================================================

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiGenerateContentResponse {
    #[serde(default)]
    pub candidates: Vec<GeminiCandidate>,
    #[serde(default)]
    pub prompt_feedback: Option<GeminiPromptFeedback>,
    #[serde(default)]
    pub usage_metadata: Option<GeminiUsageMetadata>,
    #[serde(default)]
    pub model_version: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiCandidate {
    #[serde(default)]
    pub content: Option<GeminiContent>,
    #[serde(default)]
    pub finish_reason: Option<GeminiFinishReason>,
    #[serde(default)]
    pub safety_ratings: Vec<GeminiSafetyRating>,
    #[serde(default)]
    pub citation_metadata: Option<GeminiCitationMetadata>,
    #[serde(default)]
    pub token_count: Option<u32>,
    #[serde(default)]
    pub index: Option<u32>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiFinishReason {
    FinishReasonUnspecified,
    Stop,
    MaxTokens,
    Safety,
    Recitation,
    Language,
    Other,
    Blocklist,
    ProhibitedContent,
    Spii,
    MalformedFunctionCall,
    ImageSafety,
    #[serde(other)]
    Unknown,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiSafetyRating {
    pub category: GeminiHarmCategory,
    pub probability: GeminiHarmProbability,
    #[serde(default)]
    pub blocked: Option<bool>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiHarmProbability {
    HarmProbabilityUnspecified,
    Negligible,
    Low,
    Medium,
    High,
    #[serde(other)]
    Unknown,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiCitationMetadata {
    #[serde(default)]
    pub citation_sources: Vec<GeminiCitationSource>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiCitationSource {
    #[serde(default)]
    pub start_index: Option<u32>,
    #[serde(default)]
    pub end_index: Option<u32>,
    #[serde(default)]
    pub uri: Option<String>,
    #[serde(default)]
    pub license: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiPromptFeedback {
    #[serde(default)]
    pub block_reason: Option<GeminiBlockReason>,
    #[serde(default)]
    pub safety_ratings: Vec<GeminiSafetyRating>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "SCREAMING_SNAKE_CASE")]
pub enum GeminiBlockReason {
    BlockReasonUnspecified,
    Safety,
    Other,
    Blocklist,
    ProhibitedContent,
    #[serde(other)]
    Unknown,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "camelCase")]
pub struct GeminiUsageMetadata {
    #[serde(default)]
    pub prompt_token_count: u32,
    #[serde(default)]
    pub candidates_token_count: u32,
    #[serde(default)]
    pub total_token_count: u32,
}

// ============================================================================
// Gemini Error Types
// ============================================================================

#[derive(Debug, Deserialize)]
pub struct GeminiErrorResponse {
    pub error: GeminiError,
}

#[derive(Debug, Deserialize)]
pub struct GeminiError {
    pub code: i32,
    pub message: String,
    #[serde(default)]
    pub status: Option<String>,
}

// ============================================================================
// Gemini Models API Types
// ============================================================================

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiModelsResponse {
    #[serde(default)]
    pub models: Vec<GeminiModelInfo>,
    #[serde(default)]
    pub next_page_token: Option<String>,
}

#[derive(Debug, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct GeminiModelInfo {
    pub name: String,
    #[serde(default)]
    pub base_model_id: Option<String>,
    #[serde(default)]
    pub version: Option<String>,
    #[serde(default)]
    pub display_name: Option<String>,
    #[serde(default)]
    pub description: Option<String>,
    #[serde(default)]
    pub input_token_limit: Option<u32>,
    #[serde(default)]
    pub output_token_limit: Option<u32>,
    #[serde(default)]
    pub supported_generation_methods: Vec<String>,
    #[serde(default)]
    pub thinking: Option<bool>,
    #[serde(default)]
    pub temperature: Option<f32>,
    #[serde(default)]
    pub max_temperature: Option<f32>,
    #[serde(default)]
    pub top_p: Option<f32>,
    #[serde(default)]
    pub top_k: Option<u32>,
}