use crate::{SecretStore, SecretStoreError};
use async_trait::async_trait;
use infisical::{
    AuthMethod, InfisicalError,
    client::Client,
    secrets::{CreateSecretRequest, GetSecretRequest, UpdateSecretRequest},
};
use log::{info, warn};

#[derive(Debug)]
pub struct InfisicalSecretStore {
    client: Client,
    project_id: String,
    environment: String,
}

impl InfisicalSecretStore {
    /// Creates a new, authenticated Infisical client.
    pub async fn new(
        base_url: String,
        project_id: String,
        environment: String,
        client_id: String,
        client_secret: String,
    ) -> Result<Self, InfisicalError> {
        info!("INFISICAL_STORE: Initializing client for URL: {base_url}");

        // The builder and login logic remains the same.
        let mut client = Client::builder().base_url(base_url).build().await?;
        let auth_method = AuthMethod::new_universal_auth(client_id, client_secret);
        client.login(auth_method).await?;

        info!("INFISICAL_STORE: Client authenticated successfully.");
        Ok(Self {
            client,
            project_id,
            environment,
        })
    }
}

#[async_trait]
impl SecretStore for InfisicalSecretStore {
    async fn get_raw(&self, _environment: &str, key: &str) -> Result<Vec<u8>, SecretStoreError> {
        let environment = &self.environment;
        info!("INFISICAL_STORE: Getting key '{key}' from environment '{environment}'");

        let request = GetSecretRequest::builder(key, &self.project_id, environment).build();

        match self.client.secrets().get(request).await {
            Ok(secret) => Ok(secret.secret_value.into_bytes()),
            Err(e) => {
                // Correctly match against the actual InfisicalError enum.
                match e {
                    // The specific case for a 404 Not Found error.
                    InfisicalError::HttpError { status, .. }
                        if status == http::StatusCode::NOT_FOUND =>
                    {
                        Err(SecretStoreError::NotFound {
                            namespace: environment.to_string(),
                            key: key.to_string(),
                        })
                    }
                    // For all other errors, wrap them in our generic Store error.
                    _ => Err(SecretStoreError::Store(Box::new(e))),
                }
            }
        }
    }

    async fn set_raw(
        &self,
        _environment: &str,
        key: &str,
        val: &[u8],
    ) -> Result<(), SecretStoreError> {
        info!(
            "INFISICAL_STORE: Setting key '{key}' in environment '{}'",
            self.environment
        );
        let value_str =
            String::from_utf8(val.to_vec()).map_err(|e| SecretStoreError::Store(Box::new(e)))?;

        // --- Upsert Logic ---
        // First, attempt to update the secret.
        let update_req = UpdateSecretRequest::builder(key, &self.project_id, &self.environment)
            .secret_value(&value_str)
            .build();

        match self.client.secrets().update(update_req).await {
            Ok(_) => {
                info!("INFISICAL_STORE: Successfully updated secret '{key}'.");
                Ok(())
            }
            Err(e) => {
                // If the update failed, check if it was because the secret doesn't exist.
                match e {
                    InfisicalError::HttpError { status, .. }
                        if status == http::StatusCode::NOT_FOUND =>
                    {
                        // The secret was not found, so we create it instead.
                        warn!(
                            "INFISICAL_STORE: Secret '{key}' not found for update, attempting to create it."
                        );
                        let create_req = CreateSecretRequest::builder(
                            key,
                            &value_str,
                            &self.project_id,
                            &self.environment,
                        )
                        .build();

                        // Handle potential errors during creation.
                        self.client
                            .secrets()
                            .create(create_req)
                            .await
                            .map_err(|create_err| SecretStoreError::Store(Box::new(create_err)))?;

                        info!("INFISICAL_STORE: Successfully created secret '{key}'.");
                        Ok(())
                    }
                    // Any other error during update is a genuine failure.
                    _ => Err(SecretStoreError::Store(Box::new(e))),
                }
            }
        }
    }
}