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#[derive(Debug, Eq, PartialEq)]
pub struct Dialogue {
    pub(crate) id: String,
    pub(crate) contents: String,
}

impl From<String> for Dialogue {
    fn from(string: String) -> Dialogue {
        let lines: Vec<&str> = string.lines().collect();
        let id = lines[0].replace("DLG ", "").to_string();
        let contents = lines[1..].join("\n");

        Dialogue { id, contents }
    }
}

impl ToString for Dialogue {
    #[inline]
    fn to_string(&self) -> String {
        format!("DLG {}\n{}", self.id, self.contents)
    }
}

#[test]
fn test_dialogue_from_string() {
    assert_eq!(
        Dialogue::from("DLG h\nhello\ngoodbye".to_string()),
        Dialogue { id: "h".to_string(), contents: "hello\ngoodbye".to_string()}
    )
}

#[test]
fn test_dialogue_to_string() {
    assert_eq!(
        Dialogue {
            id: "y".to_string(),
            contents: "This is a bit of dialogue,\nblah blah\nblah blah".to_string()
        }.to_string(),
        "DLG y\nThis is a bit of dialogue,\nblah blah\nblah blah".to_string()
    );
}