loop-agent-sdk 0.1.0

//! Supabase Integration for Reputation Engine
//!
//! Fetches attestations from the Supabase `attestations` table
//! and hydrates the ReputationEngine for score calculation.

use crate::reputation_engine::{
    AttestationMetadata, AttestationRecord, CaptureLayer, ReputationEngine,
};
use reqwest::Client;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use tracing::{debug, error, info, warn};

/// Supabase configuration
#[derive(Debug, Clone)]
pub struct SupabaseConfig {
    /// Supabase project URL (e.g., https://xxx.supabase.co)
    pub url: String,
    /// Service role key (for server-side access)
    pub service_role_key: String,
}

impl SupabaseConfig {
    /// Create from environment variables
    pub fn from_env() -> Result<Self, String> {
        let url = std::env::var("SUPABASE_URL")
            .map_err(|_| "Missing SUPABASE_URL environment variable")?;
        let service_role_key = std::env::var("SUPABASE_SERVICE_ROLE_KEY")
            .map_err(|_| "Missing SUPABASE_SERVICE_ROLE_KEY environment variable")?;

        Ok(Self {
            url,
            service_role_key,
        })
    }
}

/// Raw attestation row from Supabase
#[derive(Debug, Deserialize)]
pub struct SupabaseAttestation {
    pub id: String,
    pub user_id: String,
    pub layer_id: Option<i32>,
    pub layer_group: Option<String>,
    #[serde(rename = "type")]
    pub attestation_type: String,
    pub weight: i32,
    pub is_positive: bool,
    pub metadata_json: Option<serde_json::Value>,
    pub verified: bool,
    pub source: String,
    pub source_tx: Option<String>,
    pub created_at: String,
    pub expires_at: Option<String>,
    pub deleted_at: Option<String>,
}

/// Reputation score response from Supabase function
#[derive(Debug, Deserialize)]
pub struct SupabaseReputationScore {
    pub composite: i32,
    pub reliability: i32,
    pub skill: i32,
    pub social: i32,
    pub tenure: i32,
    pub infrastructure: i32,
    pub tier: String,
}

/// Supabase client for reputation data
pub struct SupabaseClient {
    config: SupabaseConfig,
    http: Client,
}

impl SupabaseClient {
    /// Create new Supabase client
    pub fn new(config: SupabaseConfig) -> Self {
        Self {
            config,
            http: Client::new(),
        }
    }

    /// Create from environment variables
    pub fn from_env() -> Result<Self, String> {
        let config = SupabaseConfig::from_env()?;
        Ok(Self::new(config))
    }

    /// Fetch all attestations for a user
    pub async fn fetch_attestations(
        &self,
        user_id: &str,
    ) -> Result<Vec<SupabaseAttestation>, String> {
        let url = format!(
            "{}/rest/v1/attestations?user_id=eq.{}&deleted_at=is.null&order=created_at.desc",
            self.config.url, user_id
        );

        let response = self
            .http
            .get(&url)
            .header("apikey", &self.config.service_role_key)
            .header("Authorization", format!("Bearer {}", self.config.service_role_key))
            .header("Content-Type", "application/json")
            .send()
            .await
            .map_err(|e| format!("HTTP request failed: {}", e))?;

        if !response.status().is_success() {
            let status = response.status();
            let body = response.text().await.unwrap_or_default();
            return Err(format!("Supabase error {}: {}", status, body));
        }

        let attestations: Vec<SupabaseAttestation> = response
            .json()
            .await
            .map_err(|e| format!("JSON parse error: {}", e))?;

        debug!("Fetched {} attestations for user {}", attestations.len(), user_id);
        Ok(attestations)
    }

    /// Fetch reputation score using the Supabase function
    pub async fn fetch_reputation_score(
        &self,
        user_id: &str,
    ) -> Result<Option<SupabaseReputationScore>, String> {
        let url = format!(
            "{}/rest/v1/rpc/calculate_reputation_score",
            self.config.url
        );

        let body = serde_json::json!({
            "p_user_id": user_id
        });

        let response = self
            .http
            .post(&url)
            .header("apikey", &self.config.service_role_key)
            .header("Authorization", format!("Bearer {}", self.config.service_role_key))
            .header("Content-Type", "application/json")
            .json(&body)
            .send()
            .await
            .map_err(|e| format!("HTTP request failed: {}", e))?;

        if !response.status().is_success() {
            let status = response.status();
            let body = response.text().await.unwrap_or_default();
            return Err(format!("Supabase error {}: {}", status, body));
        }

        // The RPC returns an array with one row
        let scores: Vec<SupabaseReputationScore> = response
            .json()
            .await
            .map_err(|e| format!("JSON parse error: {}", e))?;

        Ok(scores.into_iter().next())
    }

    /// Add a new attestation
    pub async fn add_attestation(
        &self,
        user_id: &str,
        layer_id: Option<i32>,
        attestation_type: &str,
        weight: i32,
        is_positive: bool,
        metadata: Option<serde_json::Value>,
        source: &str,
        source_tx: Option<&str>,
        verified: bool,
    ) -> Result<String, String> {
        let url = format!("{}/rest/v1/attestations", self.config.url);

        // Map layer_id to layer_group
        let layer_group = layer_id.map(|id| match id {
            1..=6 => "passive_utility",
            7..=11 => "infrastructure",
            12..=16 => "intelligence",
            17..=22 => "aggressive_autopilot",
            _ => "passive_utility",
        });

        let body = serde_json::json!({
            "user_id": user_id,
            "layer_id": layer_id,
            "layer_group": layer_group,
            "type": attestation_type,
            "weight": weight,
            "is_positive": is_positive,
            "metadata_json": metadata.unwrap_or(serde_json::json!({})),
            "source": source,
            "source_tx": source_tx,
            "verified": verified,
            "verified_at": if verified { Some(chrono::Utc::now().to_rfc3339()) } else { None },
            "verified_by": if verified { Some("system") } else { None },
        });

        let response = self
            .http
            .post(&url)
            .header("apikey", &self.config.service_role_key)
            .header("Authorization", format!("Bearer {}", self.config.service_role_key))
            .header("Content-Type", "application/json")
            .header("Prefer", "return=representation")
            .json(&body)
            .send()
            .await
            .map_err(|e| format!("HTTP request failed: {}", e))?;

        if !response.status().is_success() {
            let status = response.status();
            let body = response.text().await.unwrap_or_default();
            return Err(format!("Supabase error {}: {}", status, body));
        }

        let created: Vec<serde_json::Value> = response
            .json()
            .await
            .map_err(|e| format!("JSON parse error: {}", e))?;

        let id = created
            .first()
            .and_then(|v| v.get("id"))
            .and_then(|v| v.as_str())
            .unwrap_or("unknown")
            .to_string();

        info!("Created attestation {} for user {}", id, user_id);
        Ok(id)
    }
}

/// Convert Supabase attestation type string to CaptureLayer
fn map_attestation_type_to_layer(attestation_type: &str, layer_id: Option<i32>) -> CaptureLayer {
    // If layer_id is provided, use it directly
    if let Some(id) = layer_id {
        return match id {
            1 => CaptureLayer::Shopping,
            2 => CaptureLayer::Referral,
            3 => CaptureLayer::Attention,
            4 => CaptureLayer::Data,
            5 => CaptureLayer::Insurance,
            6 => CaptureLayer::Compute,
            7 => CaptureLayer::Network,
            8 => CaptureLayer::Energy,
            9 => CaptureLayer::DePINAggregator,
            10 => CaptureLayer::InferenceArbitrage,
            11 => CaptureLayer::StorageDePIN,
            12 => CaptureLayer::Skill,
            13 => CaptureLayer::CurationSignal,
            14 => CaptureLayer::Social,
            15 => CaptureLayer::KnowledgeAPI,
            16 => CaptureLayer::PersonalModelLicensing,
            17 => CaptureLayer::Liquidity,
            18 => CaptureLayer::GovernanceProxy,
            19 => CaptureLayer::InventoryArbitrage,
            20 => CaptureLayer::SubAgentManager,
            21 => CaptureLayer::ReputationCollateral,
            22 => CaptureLayer::SwarmCoordinationFee,
            _ => CaptureLayer::Shopping,
        };
    }

    // Otherwise, infer from attestation type
    match attestation_type {
        // Reliability types → Shopping layer
        "vault_created" | "stack_initiated" | "stack_completed" | "yield_claimed"
        | "yield_compounded" | "early_withdrawal" | "transaction_failed" => CaptureLayer::Shopping,

        // Skill types → Skill layer
        "certification_submitted" | "certification_verified" | "expertise_demonstrated"
        | "api_contribution" => CaptureLayer::Skill,

        // Social types → Social layer
        "referral_given" | "referral_received" | "community_contribution" | "governance_vote" => {
            CaptureLayer::Social
        }

        // Tenure types → Shopping (base activity)
        "daily_login" | "weekly_active" | "monthly_milestone" | "anniversary" => {
            CaptureLayer::Shopping
        }

        // Infrastructure types → Network layer
        "node_registered" | "bandwidth_contributed" | "compute_contributed"
        | "storage_contributed" => CaptureLayer::Network,

        // Default
        _ => CaptureLayer::Shopping,
    }
}

/// Convert Supabase attestation to SDK AttestationRecord
fn convert_to_attestation_record(supabase: &SupabaseAttestation) -> AttestationRecord {
    let layer = map_attestation_type_to_layer(&supabase.attestation_type, supabase.layer_id);

    // Parse timestamp
    let timestamp = chrono::DateTime::parse_from_rfc3339(&supabase.created_at)
        .map(|dt| dt.timestamp() as u64)
        .unwrap_or(0);

    // Parse metadata
    let metadata = supabase.metadata_json.as_ref().and_then(|json| {
        let mut meta = AttestationMetadata::default();

        if let Some(obj) = json.as_object() {
            if let Some(days) = obj.get("durationDays").and_then(|v| v.as_i64()) {
                meta.lock_duration_days = Some(days as u16);
            }
            if let Some(days) = obj.get("lock_duration_days").and_then(|v| v.as_i64()) {
                meta.lock_duration_days = Some(days as u16);
            }
            if let Some(held) = obj.get("held_to_maturity").and_then(|v| v.as_bool()) {
                meta.held_to_maturity = Some(held);
            }
            if let Some(acc) = obj.get("accuracy_percent").and_then(|v| v.as_i64()) {
                meta.accuracy_percent = Some(acc as u8);
            }
            if let Some(uptime) = obj.get("uptime_percent").and_then(|v| v.as_i64()) {
                meta.uptime_percent = Some(uptime as u8);
            }
            // VPA fields
            if let Some(tier) = obj.get("difficulty_tier").and_then(|v| v.as_i64()) {
                meta.difficulty_tier = Some(tier as u8);
            }
            if let Some(mult) = obj.get("verification_multiplier").and_then(|v| v.as_f64()) {
                meta.verification_multiplier = Some(mult as f32);
            }
        }

        Some(meta)
    });

    // Use weight directly as magnitude (Supabase weights are typically 10-200)
    let magnitude = (supabase.weight as u64) * 10_000; // Scale up for scoring

    AttestationRecord {
        layer,
        timestamp,
        positive: supabase.is_positive,
        magnitude,
        metadata,
    }
}

/// Extension trait for ReputationEngine to load from Supabase
impl ReputationEngine {
    /// Load attestations from Supabase and process them
    pub async fn load_from_supabase(&mut self, client: &SupabaseClient) -> Result<usize, String> {
        let attestations = client.fetch_attestations(&self.user_pubkey).await?;
        let count = attestations.len();

        for supabase_att in &attestations {
            let record = convert_to_attestation_record(supabase_att);
            self.process_attestation(&record);
        }

        info!(
            "Loaded {} attestations from Supabase for user {}",
            count, self.user_pubkey
        );
        Ok(count)
    }

    /// Create engine and load from Supabase in one step
    pub async fn from_supabase(
        user_pubkey: String,
        client: &SupabaseClient,
    ) -> Result<Self, String> {
        let mut engine = Self::new(user_pubkey);
        engine.load_from_supabase(client).await?;
        Ok(engine)
    }
}

// ============================================================================
// TESTS
// ============================================================================

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_layer_mapping() {
        assert_eq!(
            map_attestation_type_to_layer("stack_initiated", None),
            CaptureLayer::Shopping
        );
        assert_eq!(
            map_attestation_type_to_layer("certification_verified", None),
            CaptureLayer::Skill
        );
        assert_eq!(
            map_attestation_type_to_layer("referral_given", None),
            CaptureLayer::Social
        );
        assert_eq!(
            map_attestation_type_to_layer("node_registered", None),
            CaptureLayer::Network
        );
    }

    #[test]
    fn test_layer_id_override() {
        // layer_id should override the type-based mapping
        assert_eq!(
            map_attestation_type_to_layer("stack_initiated", Some(12)),
            CaptureLayer::Skill
        );
    }

    #[test]
    fn test_convert_attestation() {
        let supabase = SupabaseAttestation {
            id: "test-id".to_string(),
            user_id: "test-user".to_string(),
            layer_id: Some(1),
            layer_group: Some("passive_utility".to_string()),
            attestation_type: "stack_initiated".to_string(),
            weight: 50,
            is_positive: true,
            metadata_json: Some(serde_json::json!({
                "durationDays": 90,
                "amount": 100000000
            })),
            verified: true,
            source: "api".to_string(),
            source_tx: None,
            created_at: "2024-03-27T00:00:00Z".to_string(),
            expires_at: None,
            deleted_at: None,
        };

        let record = convert_to_attestation_record(&supabase);
        assert_eq!(record.layer, CaptureLayer::Shopping);
        assert!(record.positive);
        assert!(record.metadata.is_some());
        assert_eq!(record.metadata.unwrap().lock_duration_days, Some(90));
    }
}