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use async_graphql_derive::Object;

pub struct PageInfo {
    pub has_previous_page: bool,
    pub has_next_page: bool,
    pub start_cursor: Option<String>,
    pub end_cursor: Option<String>,
}

#[Object(internal)]
impl PageInfo {
    #[field(desc = "When paginating backwards, are there more items?")]
    async fn has_previous_page(&self) -> bool {
        self.has_previous_page
    }

    #[field(desc = "When paginating forwards, are there more items?")]
    async fn has_next_page(&self) -> bool {
        self.has_next_page
    }

    #[field(desc = "When paginating backwards, the cursor to continue.")]
    async fn start_cursor(&self) -> &Option<String> {
        &self.start_cursor
    }

    #[field(desc = "When paginating forwards, the cursor to continue.")]
    async fn end_cursor(&self) -> &Option<String> {
        &self.end_cursor
    }
}