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

/// Project-level context management settings.
/// Controls compaction (sliding window) and RAG behavior.
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, DeriveEntityModel)]
#[sea_orm(table_name = "project_context_setting")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub project_id: ProjectId,
    /// Context window size in tokens (e.g. 128000 for Claude).
    /// When actual usage reaches this * compaction_threshold, trigger compaction.
    pub context_window_tokens: i32,
    /// Trigger compaction when usage exceeds this fraction of context_window_tokens.
    /// Default 0.8 (80%). Valid range: 0.5 - 0.9.
    pub compaction_threshold: f32,
    /// Compressed summary must not exceed this fraction of context_window_tokens.
    /// Default 0.2 (20%). Valid range: 0.05 - 0.3.
    pub compaction_max_summary_ratio: f32,
    /// Enable RAG for room conversations.
    pub rag_enabled: bool,
    /// RAG cross-session: room messages searchable across conversations.
    pub rag_cross_session: bool,
    /// Maximum RAG results to include in context.
    pub rag_max_results: i32,
    /// Minimum relevance score for RAG results (0.0 - 1.0).
    pub rag_min_score: f32,
    pub created_at: DateTimeUtc,
    pub updated_at: DateTimeUtc,
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {}

impl ActiveModelBehavior for ActiveModel {}