use url::Url;

pub struct ThoughtsUrls {
    pub base_url: String,
}

impl ThoughtsUrls {
    pub fn new(base_url: &str) -> Self {
        Self {
            base_url: base_url.trim_end_matches('/').to_string(),
        }
    }

    pub fn user_url(&self, username: &str) -> Url {
        Url::parse(&format!("{}/users/{}", self.base_url, username)).expect("valid URL")
    }

    pub fn thought_url(&self, thought_id: uuid::Uuid) -> Url {
        Url::parse(&format!("{}/thoughts/{}", self.base_url, thought_id)).expect("valid URL")
    }

    pub fn user_inbox(&self, username: &str) -> Url {
        Url::parse(&format!("{}/users/{}/inbox", self.base_url, username)).expect("valid URL")
    }

    pub fn user_outbox(&self, username: &str) -> Url {
        Url::parse(&format!("{}/users/{}/outbox", self.base_url, username)).expect("valid URL")
    }

    pub fn user_followers(&self, username: &str) -> Url {
        Url::parse(&format!("{}/users/{}/followers", self.base_url, username)).expect("valid URL")
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn user_url_format() {
        let urls = ThoughtsUrls::new("https://example.com");
        assert_eq!(
            urls.user_url("alice").as_str(),
            "https://example.com/users/alice"
        );
    }

    #[test]
    fn thought_url_format() {
        let urls = ThoughtsUrls::new("https://example.com");
        let id = uuid::Uuid::nil();
        assert!(urls
            .thought_url(id)
            .as_str()
            .starts_with("https://example.com/thoughts/"));
    }
}