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use dioxus::prelude::*;
use matrix_sdk::ruma::{OwnedEventId, OwnedRoomId};
use crate::components::modal::Modal;
use crate::state::app_state::AppState;
use crate::utils::time_format::format_time;
/// Data for a single edit revision.
#[derive(Clone, Debug)]
struct EditRevision {
body: String,
timestamp: u64,
sender: String,
}
/// Modal to display edit history of a message.
#[component]
pub fn EditHistoryModal(
room_id: String,
event_id: String,
on_close: EventHandler<()>,
) -> Element {
let state = use_context::<Signal<AppState>>();
let mut revisions = use_signal(Vec::<EditRevision>::new);
let mut is_loading = use_signal(|| true);
let mut error_msg = use_signal(|| Option::<String>::None);
// Load edit history
let rid = room_id.clone();
let eid = event_id.clone();
use_effect(move || {
let rid = rid.clone();
let eid = eid.clone();
spawn(async move {
let client = { state.read().client.clone() };
let Some(client) = client else {
is_loading.set(false);
return;
};
let Ok(room_id) = OwnedRoomId::try_from(rid.as_str()) else {
is_loading.set(false);
return;
};
let Ok(event_id) = OwnedEventId::try_from(eid.as_str()) else {
is_loading.set(false);
return;
};
let Some(room) = client.get_room(&room_id) else {
is_loading.set(false);
return;
};
// Fetch the original event to show at minimum
match room.event(&event_id, None).await {
Ok(timeline_event) => {
let raw = timeline_event.raw();
if let Ok(val) = raw.deserialize_as::<serde_json::Value>() {
let mut items = Vec::new();
// Extract original content
let body = val.get("content")
.and_then(|c| c.get("body"))
.and_then(|b| b.as_str())
.unwrap_or("(unable to read)")
.to_string();
let sender = val.get("sender")
.and_then(|s| s.as_str())
.unwrap_or("unknown")
.to_string();
let ts = val.get("origin_server_ts")
.and_then(|t| t.as_u64())
.unwrap_or(0);
items.push(EditRevision {
body,
timestamp: ts,
sender,
});
// Check for replacement chain in content.m.new_content
if let Some(new_content) = val.get("content").and_then(|c| c.get("m.new_content")) {
let new_body = new_content.get("body")
.and_then(|b| b.as_str())
.unwrap_or("(edited content)")
.to_string();
items.push(EditRevision {
body: new_body,
timestamp: ts,
sender: items[0].sender.clone(),
});
}
revisions.set(items);
}
}
Err(e) => {
error_msg.set(Some(format!("Failed to load event: {e}")));
}
}
is_loading.set(false);
});
});
rsx! {
Modal {
title: "Edit History".to_string(),
on_close: move |_| on_close.call(()),
div {
class: "edit-history",
if *is_loading.read() {
div {
class: "edit-history__loading",
div { class: "spinner spinner--small" }
span { "Loading edit history..." }
}
}
if let Some(ref err) = *error_msg.read() {
div {
class: "edit-history__error",
"{err}"
}
}
for (idx, rev) in revisions.read().iter().enumerate() {
{
let body = rev.body.clone();
let sender = rev.sender.clone();
let time = format_time(rev.timestamp);
let is_latest = idx == revisions.read().len() - 1;
let label = if idx == 0 && !is_latest {
"Original"
} else if is_latest {
"Current"
} else {
"Revision"
};
rsx! {
div {
class: if is_latest { "edit-history__revision edit-history__revision--current" } else { "edit-history__revision" },
div {
class: "edit-history__revision-header",
span { class: "edit-history__revision-label", "{label}" }
span { class: "edit-history__revision-time", "{time}" }
span { class: "edit-history__revision-sender", "{sender}" }
}
div {
class: "edit-history__revision-body",
"{body}"
}
}
}
}
}
if !*is_loading.read() && revisions.read().is_empty() && error_msg.read().is_none() {
div {
class: "edit-history__empty",
"No edit history available."
}
}
}
}
}
}