use serde::{Deserialize, Serialize};

/// Basic user display data used by frontend components.
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct UserData {
    pub name: String,
}

/// Authentication information returned by the `check_auth` server function.
///
/// The frontend uses this to determine whether the user is logged in
/// and to display their profile (name, email, avatar).
#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize)]
pub struct AuthInfo {
    /// Whether the user has a valid session
    pub authenticated: bool,
    /// Keycloak subject identifier (unique user ID)
    pub sub: String,
    /// User email address
    pub email: String,
    /// User display name
    pub name: String,
    /// Avatar URL (from Keycloak picture claim)
    pub avatar_url: String,
    /// LibreChat instance URL for the sidebar chat link
    pub librechat_url: String,
}

/// Per-user LLM provider configuration stored in MongoDB.
///
/// Controls which provider and model the user's chat sessions default
/// to, and stores API keys for non-Ollama providers.
#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize)]
pub struct UserProviderConfig {
    /// Default provider name (e.g. "ollama", "openai")
    pub default_provider: String,
    /// Default model ID (e.g. "llama3.1:8b", "gpt-4o")
    pub default_model: String,
    /// OpenAI API key (empty if not configured)
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub openai_api_key: Option<String>,
    /// Anthropic API key
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub anthropic_api_key: Option<String>,
    /// HuggingFace API key
    #[serde(default, skip_serializing_if = "Option::is_none")]
    pub huggingface_api_key: Option<String>,
    /// Custom Ollama URL override (empty = use server default)
    pub ollama_url_override: String,
}

/// Per-user preferences stored in MongoDB.
///
/// Keyed by `sub` (Keycloak subject) and optionally scoped to an org.
#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize)]
pub struct UserPreferences {
    /// Keycloak subject identifier
    pub sub: String,
    /// Organization ID (from Keycloak Organizations)
    pub org_id: String,
    /// User-selected news/search topics
    pub custom_topics: Vec<String>,
    /// Per-user Ollama URL override (empty = use server default)
    pub ollama_url_override: String,
    /// Per-user Ollama model override (empty = use server default)
    pub ollama_model_override: String,
    /// Recently searched queries for quick access
    pub recent_searches: Vec<String>,
    /// LLM provider configuration
    #[serde(default)]
    pub provider_config: UserProviderConfig,
}