use serde::Serialize;
use time::OffsetDateTime;

use super::{content::Content, link::Link};

#[derive(Debug, Serialize)]
#[serde(rename = "entry")]
pub struct Entry {
    pub title: String,
    pub id: String,
    #[serde(with = "time::serde::rfc3339")]
    pub updated: OffsetDateTime,
    pub content: Content,
    #[serde(rename = "link")]
    pub links: Vec<Link>,
}

#[cfg(test)]
mod tests {
    use quick_xml::se::to_string;
    use time::macros::datetime;

    use crate::opds::{content::Content, media_type::MediaType, relation::Relation};

    use super::*;

    fn init() -> Entry {
        Entry {
            title: "Authors".to_string(),
            id: "rust:authors".to_string(),
            updated: datetime!(2024-05-06 19:14:54 UTC),
            content: Content {
                media_type: MediaType::Text,
                content: "All authors".to_string(),
            },
            links: vec![
                Link {
                    href: "/opds".to_string(),
                    media_type: MediaType::Text,
                    rel: Relation::Start,
                    title: None,
                    count: None,
                },
                Link {
                    href: "/opds".to_string(),
                    media_type: MediaType::Text,
                    rel: Relation::Start,
                    title: None,
                    count: None,
                },
            ],
        }
    }

    #[test]
    fn serialize() {
        let entry = init();
        let xml = to_string(&entry).unwrap();
        assert_eq!(
            xml,
            r#"<entry><title>Authors</title><id>rust:authors</id><updated>2024-05-06T19:14:54Z</updated><content type="text">All authors</content><link href="/opds" type="text" rel="start"/><link href="/opds" type="text" rel="start"/></entry>"#
        );
    }
}