//! Files on a server, against a scripted link: `collab.publish` makes the open tab the server
//! file's synced document (read-only until it is there, its undo history per person after), and
//! a view link makes the synced document read-only (commands, gestures, editing tools and changes
//! made outside a command are all refused or put back; others' edits still arrive; other tabs stay
//! editable). Leaving keeps the file open as your copy.

use figcraft_collab::message::{ClientMsg, ServerMsg};
use figcraft_collab::{Client, NoRecompute, Outgoing};
use serde_json::json;

use crate::live::{Access, Event, PUBLISHING, Published, Role, VIEW_ONLY};
use crate::live_tests::{info, push, relay, serve_as, session};
use crate::tools::ToolId;
use crate::{EngineError, Session};

fn refused(s: &mut Session, cmd: &str, params: serde_json::Value, why: &str) {
    match s.execute(cmd, &params) {
        Err(EngineError::Disabled(_, reason)) => assert_eq!(reason, why, "{cmd}"),
        other => panic!("{cmd}: expected a refusal, got {other:?}"),
    }
}

#[test]
fn publishing_makes_the_open_tab_the_server_file() {
    let (mut s, script) = session();
    s.execute("shape.rectangle", &json!({"x": 0, "y": 0, "width": 50, "height": 50})).unwrap();
    assert!(s.undo_depth().0 > 0);
    let e = s.execute("collab.publish", &json!({"server": "nope"})).unwrap_err();
    assert!(e.to_string().contains("not a server address"), "{e}");
    let r = s.execute("collab.publish", &json!({"server": " ws://127.0.0.1:47900/?key=k ", "name": " Team\n"})).unwrap();
    assert_eq!(r["status"], "connecting");
    assert_eq!(r["readOnly"], true);
    {
        let sc = script.lock().unwrap();
        assert_eq!(sc.published.len(), 1);
        assert_eq!(sc.published[0].server, "ws://127.0.0.1:47900/?key=k");
        assert_eq!(sc.published[0].name, "Team");
        assert_eq!(sc.published[0].doc.node_count(), s.doc().unwrap().node_count());
    }
    // Until it is on the server nothing changes it (and the name defaults to the file's).
    refused(&mut s, "shape.ellipse", json!({"x": 0, "y": 0, "width": 5, "height": 5}), PUBLISHING);
    refused(&mut s, "tool.set", json!({"tool": "rectangle"}), PUBLISHING);
    assert!(s.execute("tool.set", &json!({"tool": "hand"})).is_ok(), "moving around is fine");
    assert!(s.begin_interaction("Move").is_err());
    // The server's welcome: this tab is the synced document, undo is per person from now on.
    let mut doc = s.doc().unwrap().clone();
    doc.name = "Team".into();
    let (mut server, id, welcome) = serve_as(&doc, Access::Edit);
    let published = Published { server: "127.0.0.1:47900".into(), file: "f".into(), name: "Team".into(), edit: "e".into(), view: "v".into() };
    push(&script, vec![Event::Published(published.clone()), Event::Welcome { info: info(Role::Guest, id), peers: vec![] }, welcome]);
    s.live_poll();
    assert!(s.live.syncing());
    assert_eq!(s.docs.len(), 1, "no new tab");
    assert_eq!(s.doc().unwrap().name, "Team");
    assert_eq!(s.undo_depth(), (0, 0));
    assert_eq!(s.active_read_only(), None);
    assert_eq!(s.live.published, Some(published));
    assert_eq!(s.message.as_deref(), Some("Published Team to the server"));
    assert_eq!(s.live_summary()["published"]["name"], "Team");
    // Edits sync through the server.
    let rect = s.execute("shape.rectangle", &json!({"x": 100, "y": 0, "width": 20, "height": 20})).unwrap()["id"].as_u64().unwrap();
    let answers = relay(&script, &mut server, id);
    assert!(server.document().contains(figcraft_doc::NodeId(rect)));
    push(&script, answers);
    s.live_poll();
    assert_eq!(s.undo_depth(), (1, 0));
    // Leaving keeps the file open, yours to edit.
    s.execute("collab.leave", &json!({})).unwrap();
    assert_eq!(s.docs.len(), 1);
    assert!(s.doc().unwrap().contains(figcraft_doc::NodeId(rect)));
    assert_eq!(s.message.as_deref(), Some("You left the session; your copy stays open here"));
    assert!(s.execute("shape.ellipse", &json!({"x": 0, "y": 0, "width": 5, "height": 5})).is_ok());
}

#[test]
fn a_view_link_makes_the_file_read_only() {
    let (mut s, script) = session();
    s.execute("tool.set", &json!({"tool": "rectangle"})).unwrap();
    s.execute("collab.join", &json!({"link": "figcraft://join?host=a:1&file=f&token=t"})).unwrap();
    let mut doc = figcraft_doc::Document::new("Shared");
    let page = doc.first_page().unwrap();
    let card = doc.create(page, figcraft_doc::NodeKind::Rectangle, "Card", 0.0, 0.0, 10.0, 10.0).unwrap();
    let (mut server, id, welcome) = serve_as(&doc, Access::View);
    let mut me = info(Role::Guest, id);
    me.access = Access::View;
    push(&script, vec![Event::Welcome { info: me, peers: vec![] }, welcome]);
    s.live_poll();
    assert!(s.live.syncing());
    assert_eq!(s.active_read_only(), Some(VIEW_ONLY));
    let summary = s.live_summary();
    assert_eq!((summary["access"].as_str(), summary["readOnly"].as_bool()), (Some("view"), Some(true)));
    assert_eq!(s.tool.tool, ToolId::Move, "the editing tool was put away");
    // Commands, tools and gestures are refused; nothing changes and nothing is sent.
    let before = s.doc().unwrap().clone();
    refused(&mut s, "shape.rectangle", json!({"x": 0, "y": 0, "width": 5, "height": 5}), VIEW_ONLY);
    refused(&mut s, "node.set", json!({"ids": [card.0], "props": {"name": "Mine"}}), VIEW_ONLY);
    refused(&mut s, "edit.delete", json!({"ids": [card.0]}), VIEW_ONLY);
    refused(&mut s, "tool.set", json!({"tool": "text"}), VIEW_ONLY);
    assert!(matches!(s.begin_interaction("Move"), Err(EngineError::Disabled(..))));
    assert_eq!(*s.doc().unwrap(), before);
    assert!(s.execute("select.set", &json!({"ids": [card.0]})).is_ok(), "selecting is fine");
    // A change made outside a command is put back, never sent.
    s.ds_mut().unwrap().doc_mut().node_mut(card).unwrap().name = "Outside".into();
    s.live_sync();
    assert_eq!(s.doc().unwrap().node(card).unwrap().name, "Card");
    assert!(script.lock().unwrap().msgs.iter().all(|m| !matches!(m, ClientMsg::Changes { .. })));
    // Someone who may edit renames the card: it arrives.
    let ClientMsg::Hello(h) = Client::hello("f", "", "Bo", "") else { panic!() };
    let (bo_id, outs) = server.join(h).unwrap();
    let Some(Outgoing::To(_, w)) = outs.into_iter().next() else { panic!() };
    let mut bo = Client::join(w).unwrap();
    let mut d = bo.document().clone();
    d.node_mut(card).unwrap().name = "Bo's card".into();
    let m = bo.edit(&d).unwrap().unwrap();
    for o in server.receive(bo_id, m) {
        if let Outgoing::All(m @ ServerMsg::Changes(_)) = o {
            bo.receive(m.clone(), &NoRecompute).unwrap();
            push(&script, vec![Event::Sync(m)]);
        }
    }
    s.live_poll();
    assert_eq!(s.doc().unwrap().node(card).unwrap().name, "Bo's card");
    // Your other tabs stay yours.
    s.active = 0;
    assert_eq!(s.active_read_only(), None);
    assert!(s.execute("shape.rectangle", &json!({"x": 0, "y": 0, "width": 5, "height": 5})).is_ok());
}