use super::components;
use maud::{Markup, Render, html};
use url::Url;

pub struct NoteAuthor {
    pub display_name: String,
    pub handle: NoteAuthorHandle,
}

impl Render for NoteAuthor {
    fn render(&self) -> Markup {
        html! {
            span class="note-author" {
                span class="note-author-display-name" {(self.display_name)}
                (self.handle)
            }
        }
    }
}

pub enum NoteAuthorHandle {
    Local { username: String },
    Remote { username: String, host: String },
}

impl Render for NoteAuthorHandle {
    fn render(&self) -> Markup {
        html! {
            span class="note-author-handle" {
            (match self {
                Self::Local { username } => {
                    format!("@{username}")
                },
                Self::Remote { username, host } => {
                    format!("@{username}@{host}")
                }
            })}
        }
    }
}

pub struct Note {
    id: i64,
    author: NoteAuthor,
    content_html: String,
    created_at: components::DateTime,
    updated_at: Option<components::DateTime>,
    permalink: Url,
    reacted: bool,
    boosted: bool,
    logged_in_viewer: Option<String>,
}

impl Render for Note {
    fn render(&self) -> Markup {
        html! {
            article class="note" {
                header{
                    (self.author)
                    span class="note-time" {
                        (self.created_at)
                        @if let Some(updated_at) = &self.updated_at {
                            (updated_at)
                        }
                    }
                }
                main {
                    (self.content_html)
                }
                footer {
                    a href=(self.permalink) { "permalink" }
                    @if self.logged_in_viewer.is_some() {
                        @if self.reacted {
                            form method="post" action=(format!("/remote-notes/{}/unreact", self.id)) {
                                button type="submit" class="react-button reacted" { "❤️ Unreact" }
                            }
                        } @else {
                            form method="post" action=(format!("/remote-notes/{}/react", self.id)) {
                                button type="submit" class="react-button" { "❤️ React" }
                            }
                        }
                        @if self.boosted {
                            form method="post" action=(format!("/remote-notes/{}/unannounce", self.id)) {
                                button type="submit" class="react-button reacted" { "🔁 Unboost" }
                            }
                        } @else {
                            form method="post" action=(format!("/remote-notes/{}/announce", self.id)) {
                                button type="submit" class="react-button" { "🔁 Boost" }
                            }
                        }
                    }
                }
            }
        }
    }
}

#[cfg(test)]
mod tests {
    use chrono::Utc;

    use super::*;
    #[test]
    fn test_sample_note() {
        let note = Note {
            id: 1,
            author: NoteAuthor {
                display_name: "Alice In Wonderland".to_string(),
                handle: NoteAuthorHandle::Local {
                    username: "alice".to_string(),
                },
            },
            content_html: "<h1>hiiiiiiiii!</h1><p>Sample note content.</p>".to_string(),
            created_at: components::DateTime::from(&Utc::now()),
            updated_at: None,
            permalink: Url::try_from("http://localhost/notes/1").expect("Could not parse URL"),
            reacted: false,
            boosted: false,
            logged_in_viewer: None,
        };
        let res = note.render().into_string();
        const EXPECTED: &str = "<article class=\"note\">
        <header>
        <span class=\"note-author\">
            <span class=\"note-author-display-name\">Alice In Wonderland</span>
            <span class=\"note-author-handle\">@alice</span>
        </span>
        <span class=\"note-time\">
            <time datetime=\"2026-10-22T10:06:21.083097274+00:00\">2026-10-22T10:06:21.083097274+00:00</time>
        </span>
        </header>
        <main>&lt;h1&gt;hiiiiiiiii!&lt;/h1&gt;&lt;p&gt;Sample note content.&lt;/p&gt;</main>
        <footer><a href=\"http://localhost/notes/1\">permalink</a></footer>
        </article>";
        assert_eq!(res, EXPECTED.replace("\n", ""));
    }
}