use sea_orm::entity::prelude::*;
use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Serialize, Deserialize)]
#[sea_orm(table_name = "ai_chat_messages")]
pub struct Model {
    #[sea_orm(primary_key, auto_increment = false)]
    pub id: Uuid,
    pub tenant_id: Uuid,
    pub session_id: Uuid,
    pub role: String,
    pub content: Option<String>,
    pub tool_calls: Option<serde_json::Value>,
    pub tool_call_id: Option<String>,
    pub token_count: Option<i32>,
    pub created_at: DateTimeUtc,
    pub updated_at: DateTimeUtc,
    pub created_by: Option<Uuid>,
    pub updated_by: Option<Uuid>,
    pub deleted_at: Option<DateTimeUtc>,
    #[sea_orm(default_value = 1)]
    pub version_lock: i32,
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
    #[sea_orm(
        belongs_to = "super::ai_chat_session::Entity",
        from = "Column::SessionId",
        to = "super::ai_chat_session::Column::Id"
    )]
    Session,
}

impl Related<super::ai_chat_session::Entity> for Entity {
    fn to() -> RelationDef {
        Relation::Session.def()
    }
}

impl ActiveModelBehavior for ActiveModel {}