lmrc-cli 0.3.16

//! Auth service layer - business logic for authentication

use super::models::*;
use crate::error::AppError;
use sea_orm::{DatabaseConnection, EntityTrait, QueryFilter, ColumnTrait, Set, ActiveModelTrait};
use chrono::{Utc, Duration};
use uuid::Uuid;

// Note: These would come from SeaORM entity definitions
// For now, we'll define simplified versions

pub struct AuthService {
    db: DatabaseConnection,
    jwt_secret: String,
}

impl AuthService {
    pub fn new(db: DatabaseConnection, jwt_secret: String) -> Self {
        Self { db, jwt_secret }
    }

    /// Get user by ID
    pub async fn get_user(&self, user_id: i64) -> Result<UserResponse, AppError> {
        // TODO: Query infra_users table
        // For now, return mock data
        Ok(UserResponse {
            id: user_id,
            email: "admin@lmrc.local".to_string(),
            role: "admin".to_string(),
            is_active: true,
            created_at: Utc::now(),
        })
    }

    /// Create a new API token for a user
    pub async fn create_api_token(
        &self,
        user_id: i64,
        name: String,
        scopes: Vec<String>,
        expires_in_days: Option<i64>,
    ) -> Result<CreateTokenResponse, AppError> {
        // Generate token
        let token_id = Uuid::new_v4().to_string();
        let token = self.generate_token(&token_id)?;
        let token_hash = self.hash_token(&token)?;

        let expires_at = expires_in_days.map(|days| Utc::now() + Duration::days(days));

        // TODO: Insert into api_tokens table
        // For now, return response

        Ok(CreateTokenResponse {
            token,
            token_id,
            name,
            scopes,
            expires_at,
        })
    }

    /// List user's API tokens
    pub async fn list_api_tokens(&self, user_id: i64) -> Result<ApiTokensListResponse, AppError> {
        // TODO: Query api_tokens table
        // For now, return empty list
        Ok(ApiTokensListResponse {
            tokens: vec![],
            total: 0,
        })
    }

    /// Revoke an API token
    pub async fn revoke_api_token(&self, user_id: i64, token_id: &str) -> Result<(), AppError> {
        // TODO: Update api_tokens table set is_revoked = true
        Ok(())
    }

    /// Validate API token and return user ID
    pub async fn validate_api_token(&self, token: &str) -> Result<i64, AppError> {
        let token_hash = self.hash_token(token)?;

        // TODO: Query api_tokens table
        // For now, return mock user ID
        Ok(1)
    }

    // Helper methods

    fn generate_token(&self, token_id: &str) -> Result<String, AppError> {
        // Generate JWT or simple token
        Ok(format!("lmrc_{}", token_id))
    }

    fn hash_token(&self, token: &str) -> Result<String, AppError> {
        // Hash token for storage
        use argon2::{
            password_hash::{PasswordHasher, SaltString, rand_core::OsRng},
            Argon2
        };

        let salt = SaltString::generate(&mut OsRng);
        let argon2 = Argon2::default();

        let hash = argon2.hash_password(token.as_bytes(), &salt)
            .map_err(|e| AppError::Internal(format!("Token hashing error: {}", e)))?;

        Ok(hash.to_string())
    }
}