// MimirsWell Cognitive Stack Tests - Layer 6 (Nott) and Layer 7 (Yggdrasil)
// Based on whitepaper_v2.md autonomous reflection and identity formation

/// L6: Nott - Autonomous Reflection Engine Tests
mod nott_tests {
    /// Reflection Loss Function from whitepaper_v2.md
    /// L = αE + βC + δH (Error, Contradiction, Hallucination)
    fn compute_reflection_loss(
        error_rate: f32,
        contradiction_count: f32,
        hallucination_score: f32,
    ) -> f32 {
        let alpha: f32 = 1.0;
        let beta: f32 = 1.0;
        let delta: f32 = 1.0;
        alpha * error_rate + beta * contradiction_count + delta * hallucination_score
    }

    #[test]
    fn test_reflection_loss_function() {
        let loss = compute_reflection_loss(0.2, 0.1, 0.05);
        assert!(loss > 0.0);
        assert!(loss < 1.0);
    }

    #[test]
    fn test_reflection_minimizes_incoherence() {
        let initial_loss = compute_reflection_loss(0.5, 0.3, 0.2);
        let reflected_loss = compute_reflection_loss(0.3, 0.1, 0.1);
        assert!(reflected_loss < initial_loss);
    }

    #[test]
    fn test_error_detection() {
        let high_error_loss = compute_reflection_loss(0.8, 0.1, 0.05);
        let low_error_loss = compute_reflection_loss(0.1, 0.1, 0.05);
        assert!(high_error_loss > low_error_loss);
    }
}

/// L7: Yggdrasil - Identity Continuity Tests
mod yggdrasil_tests {
    /// Identity State from whitepaper_v2.md
    /// I_t = Φ(M_t, G_t, H_t, R_t)
    #[derive(Clone, Debug)]
    struct IdentityState {
        state_vector: Vec<f32>,
        purity: f32,
        last_updated: i64,
    }

    impl IdentityState {
        fn new() -> Self {
            Self {
                state_vector: vec![0.0; 256],
                purity: 1.0,
                last_updated: chrono::Utc::now().timestamp(),
            }
        }

        fn update_from_components(
            &mut self,
            memory_count: usize,
            goal_count: usize,
            history_count: usize,
            reflection_count: usize,
        ) {
            let memory_component = (memory_count as f32 / 1000.0).min(1.0);
            let goal_component = (goal_count as f32 / 10.0).min(1.0);
            let history_component = (history_count as f32 / 100.0).min(1.0);
            let reflection_component = (reflection_count as f32 / 50.0).min(1.0);

            self.purity =
                (memory_component + goal_component + history_component + reflection_component)
                    / 4.0;
            self.last_updated = chrono::Utc::now().timestamp();
        }
    }

    #[test]
    fn test_identity_state_initialization() {
        let identity = IdentityState::new();
        assert_eq!(identity.state_vector.len(), 256);
        assert_eq!(identity.purity, 1.0);
    }

    #[test]
    fn test_identity_continuity() {
        let mut identity = IdentityState::new();
        identity.update_from_components(100, 5, 50, 10);
        assert!(identity.purity > 0.0);
        assert!(identity.last_updated > 0);
    }

    #[test]
    fn test_multi_session_persistence() {
        let session1_identity = IdentityState {
            state_vector: vec![0.5; 256],
            purity: 0.85,
            last_updated: 1234567890,
        };

        let session2_identity = IdentityState {
            state_vector: vec![0.5; 256],
            purity: 0.85,
            last_updated: session1_identity.last_updated + 3600,
        };

        assert_eq!(
            session1_identity.state_vector.len(),
            session2_identity.state_vector.len()
        );
    }

    #[test]
    fn test_identity_evolution() {
        let mut identity = IdentityState::new();

        // Empty state
        identity.update_from_components(0, 0, 0, 0);
        let initial_purity = identity.purity;

        // Accumulated experiences
        identity.update_from_components(500, 3, 25, 5);
        assert!(identity.purity >= initial_purity);
    }
}
