letterbox/web/src/state.rs

393 lines
12 KiB
Rust

use graphql_client::GraphQLQuery;
use log::{debug, info};
use notmuch::ThreadSet;
use seed::{prelude::*, *};
use thiserror::Error;
use crate::{
api,
api::urls,
consts::{SEARCH_RESULTS_PER_PAGE, USE_GRAPHQL},
graphql,
graphql::{front_page_query::*, send_graphql, show_thread_query::*},
};
// `init` describes what should happen when your app started.
pub fn init(url: Url, orders: &mut impl Orders<Msg>) -> Model {
if url.hash().is_none() {
orders.request_url(urls::search("is:unread", 0));
} else {
orders.notify(subs::UrlRequested::new(url));
};
orders.subscribe(on_url_changed);
Model {
context: Context::None,
query: "".to_string(),
refreshing_state: RefreshingState::None,
ui_error: UIError::NoError,
tags: None,
}
}
fn on_url_changed(uc: subs::UrlChanged) -> Msg {
let mut url = uc.0;
info!(
"url changed '{}', history {}",
url,
history().length().unwrap_or(0)
);
let hpp = url.remaining_hash_path_parts();
match hpp.as_slice() {
["t", tid] => {
if USE_GRAPHQL {
Msg::ShowThreadRequest {
thread_id: tid.to_string(),
}
} else {
Msg::ShowPrettyRequest(tid.to_string())
}
}
["s", query] => {
let query = Url::decode_uri_component(query).unwrap_or("".to_string());
if USE_GRAPHQL {
Msg::FrontPageRequest {
query,
after: None,
before: None,
first: None,
last: None,
}
} else {
Msg::SearchRequest {
query,
page: 0,
results_per_page: SEARCH_RESULTS_PER_PAGE,
}
}
}
["s", query, page] => {
let query = Url::decode_uri_component(query).unwrap_or("".to_string());
let page = page[1..].parse().unwrap_or(0);
if USE_GRAPHQL {
Msg::FrontPageRequest {
query,
after: Some(page.to_string()),
before: None,
first: None,
last: None,
}
} else {
Msg::SearchRequest {
query,
page,
results_per_page: SEARCH_RESULTS_PER_PAGE,
}
}
}
p => {
if !p.is_empty() {
info!("Unhandled path '{p:?}'");
}
if USE_GRAPHQL {
Msg::FrontPageRequest {
query: "".to_string(),
after: None,
before: None,
first: None,
last: None,
}
} else {
Msg::SearchRequest {
query: "".to_string(),
page: 0,
results_per_page: SEARCH_RESULTS_PER_PAGE,
}
}
}
}
}
// `update` describes how to handle each `Msg`.
pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
match msg {
Msg::Noop => {}
Msg::RefreshStart => {
model.refreshing_state = RefreshingState::Loading;
orders.perform_cmd(async move { Msg::RefreshDone(api::refresh_request().await.err()) });
}
Msg::RefreshDone(err) => {
model.refreshing_state = if let Some(err) = err {
RefreshingState::Error(format!("{:?}", err))
} else {
RefreshingState::None
};
orders.perform_cmd(async move { Msg::Reload });
}
Msg::Reload => {
orders.perform_cmd(async move { on_url_changed(subs::UrlChanged(Url::current())) });
}
Msg::SearchRequest {
query,
page,
results_per_page,
} => {
info!("searching for '{query}' pg {page} # / pg {results_per_page}");
model.query = query.clone();
orders.skip().perform_cmd(async move {
Msg::SearchResult(api::search_request(&query, page, results_per_page).await)
});
}
Msg::SearchResult(Ok(response_data)) => {
debug!("fetch ok {:#?}", response_data);
model.context = Context::Search(response_data);
}
Msg::SearchResult(Err(fetch_error)) => {
error!("fetch failed {:?}", fetch_error);
}
Msg::ShowPrettyRequest(tid) => {
orders.skip().perform_cmd(async move {
Msg::ShowPrettyResult(api::show_pretty_request(&tid).await)
});
}
Msg::ShowPrettyResult(Ok(response_data)) => {
debug!("fetch ok {:#?}", response_data);
model.context = Context::Thread(response_data);
}
Msg::ShowPrettyResult(Err(fetch_error)) => {
error!("fetch failed {:?}", fetch_error);
}
Msg::NextPage => {
match &model.context {
Context::Search(sr) => {
orders.request_url(urls::search(&sr.query, sr.page + 1));
}
Context::SearchResult { query, pager, .. } => {
let query = query.to_string();
let after = pager.end_cursor.clone();
orders.perform_cmd(async move {
Msg::FrontPageRequest {
query,
after,
before: None,
first: Some(SEARCH_RESULTS_PER_PAGE as i64),
last: None,
}
});
}
Context::Thread(_) => (), // do nothing (yet?)
Context::ThreadResult(_) => (), // do nothing (yet?)
Context::None => (), // do nothing (yet?)
};
}
Msg::PreviousPage => {
match &model.context {
Context::Search(sr) => {
orders.request_url(urls::search(&sr.query, sr.page.saturating_sub(1)));
}
Context::SearchResult { query, pager, .. } => {
let query = query.to_string();
let before = pager.start_cursor.clone();
orders.perform_cmd(async move {
Msg::FrontPageRequest {
query,
after: None,
before,
first: None,
last: Some(SEARCH_RESULTS_PER_PAGE as i64),
}
});
}
Context::Thread(_) => (), // do nothing (yet?)
Context::ThreadResult(_) => (), // do nothing (yet?)
Context::None => (), // do nothing (yet?)
};
}
Msg::UpdateQuery(query) => model.query = query,
Msg::SearchQuery(query) => {
orders.request_url(urls::search(&query, 0));
}
Msg::FrontPageRequest {
query,
after,
before,
first,
last,
} => {
info!("making FrontPageRequest: {query} after:{after:?} before:{before:?} first:{first:?} last:{last:?}");
model.query = query.clone();
orders.skip().perform_cmd(async move {
Msg::FrontPageResult(
send_graphql(graphql::FrontPageQuery::build_query(
graphql::front_page_query::Variables {
query,
after,
before,
first,
last,
},
))
.await,
)
});
}
Msg::FrontPageResult(Err(e)) => error!("error FrontPageResult: {e:?}"),
Msg::FrontPageResult(Ok(graphql_client::Response {
data: None,
errors: None,
..
})) => {
error!("FrontPageResult no data or errors, should not happen");
}
Msg::FrontPageResult(Ok(graphql_client::Response {
data: None,
errors: Some(e),
..
})) => {
error!("FrontPageResult error: {e:?}");
}
Msg::FrontPageResult(Ok(graphql_client::Response {
data: Some(data), ..
})) => {
model.tags = Some(
data.tags
.into_iter()
.map(|t| Tag {
name: t.name,
bg_color: t.bg_color,
fg_color: t.fg_color,
unread: t.unread,
})
.collect(),
);
model.context = Context::SearchResult {
query: model.query.clone(),
results: data.search.nodes,
count: data.count as usize,
pager: data.search.page_info,
};
}
Msg::ShowThreadRequest { thread_id } => {
orders.skip().perform_cmd(async move {
Msg::ShowThreadResult(
send_graphql(graphql::ShowThreadQuery::build_query(
graphql::show_thread_query::Variables { thread_id },
))
.await,
)
});
}
Msg::ShowThreadResult(Ok(graphql_client::Response {
data: Some(data), ..
})) => {
model.tags = Some(
data.tags
.into_iter()
.map(|t| Tag {
name: t.name,
bg_color: t.bg_color,
fg_color: t.fg_color,
unread: t.unread,
})
.collect(),
);
model.context = Context::ThreadResult(data.thread);
}
Msg::ShowThreadResult(bad) => {
error!("show_thread_query error: {bad:?}");
}
}
}
// `Model` describes our app state.
pub struct Model {
pub query: String,
pub context: Context,
pub refreshing_state: RefreshingState,
pub ui_error: UIError,
pub tags: Option<Vec<Tag>>,
}
#[derive(Error, Debug)]
#[allow(dead_code)] // Remove once the UI is showing errors
pub enum UIError {
#[error("No error, this should never be presented to user")]
NoError,
#[error("failed to fetch {0}: {1:?}")]
FetchError(&'static str, FetchError),
#[error("{0} error decoding: {1:?}")]
FetchDecodeError(&'static str, Vec<graphql_client::Error>),
#[error("no data or errors for {0}")]
NoData(&'static str),
}
pub enum Context {
None,
Search(shared::SearchResult),
SearchResult {
query: String,
results: Vec<FrontPageQuerySearchNodes>,
count: usize,
pager: FrontPageQuerySearchPageInfo,
},
Thread(ThreadSet),
ThreadResult(ShowThreadQueryThread),
}
pub struct Tag {
pub name: String,
pub bg_color: String,
pub fg_color: String,
pub unread: i64,
}
#[derive(Debug, PartialEq)]
pub enum RefreshingState {
None,
Loading,
Error(String),
}
// `Msg` describes the different events you can modify state with.
pub enum Msg {
Noop,
// Tell the client to refresh its state
Reload,
// Tell the server to update state
RefreshStart,
RefreshDone(Option<FetchError>),
SearchRequest {
query: String,
page: usize,
results_per_page: usize,
},
SearchResult(fetch::Result<shared::SearchResult>),
ShowPrettyRequest(String),
ShowPrettyResult(fetch::Result<ThreadSet>),
NextPage,
PreviousPage,
UpdateQuery(String),
SearchQuery(String),
FrontPageRequest {
query: String,
after: Option<String>,
before: Option<String>,
first: Option<i64>,
last: Option<i64>,
},
FrontPageResult(
fetch::Result<graphql_client::Response<graphql::front_page_query::ResponseData>>,
),
ShowThreadRequest {
thread_id: String,
},
ShowThreadResult(
fetch::Result<graphql_client::Response<graphql::show_thread_query::ResponseData>>,
),
}