use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize)]
pub struct ApiResponse<T>
where
    T: Serialize,
{
    pub success: bool,
    pub data: Option<T>,
    pub error: Option<String>,
}

impl<T> ApiResponse<T>
where
    T: Serialize,
{
    pub fn ok(data: T) -> Self {
        Self {
            success: true,
            data: Some(data),
            error: None,
        }
    }
}

impl ApiResponse<()> {
    pub fn empty() -> Self {
        Self {
            success: true,
            data: Some(()),
            error: None,
        }
    }

    pub fn err(message: impl Into<String>) -> Self {
        Self {
            success: false,
            data: None,
            error: Some(message.into()),
        }
    }
}

#[derive(Debug, Deserialize)]
pub struct PageQuery {
    pub limit: Option<i64>,
    pub offset: Option<i64>,
}