1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
use axum::{
extract::{Json, Path, State},
http::StatusCode,
response::{IntoResponse, Response},
routing::{delete, get, post},
Router,
};
use axum_extra::extract::Query;
use super::{app, Channel, Id};
use crate::{
app::App,
clock::RequestedAt,
error::Internal,
event::{Instant, Sequence},
login::Login,
message::{self, app::SendError},
};
#[cfg(test)]
mod test;
pub fn router() -> Router<App> {
Router::new()
.route("/api/channels", get(list))
.route("/api/channels", post(on_create))
.route("/api/channels/:channel", post(on_send))
.route("/api/channels/:channel", delete(on_delete))
.route("/api/channels/:channel/messages", get(messages))
}
#[derive(Default, serde::Deserialize)]
struct ResumeQuery {
resume_point: Option<Sequence>,
}
async fn list(
State(app): State<App>,
_: Login,
Query(query): Query<ResumeQuery>,
) -> Result<Channels, Internal> {
let channels = app.channels().all(query.resume_point).await?;
let response = Channels(channels);
Ok(response)
}
struct Channels(Vec<Channel>);
impl IntoResponse for Channels {
fn into_response(self) -> Response {
let Self(channels) = self;
Json(channels).into_response()
}
}
#[derive(Clone, serde::Deserialize)]
struct CreateRequest {
name: String,
}
async fn on_create(
State(app): State<App>,
_: Login, // requires auth, but doesn't actually care who you are
RequestedAt(created_at): RequestedAt,
Json(form): Json<CreateRequest>,
) -> Result<Json<Channel>, CreateError> {
let channel = app
.channels()
.create(&form.name, &created_at)
.await
.map_err(CreateError)?;
Ok(Json(channel))
}
#[derive(Debug)]
struct CreateError(app::CreateError);
impl IntoResponse for CreateError {
fn into_response(self) -> Response {
let Self(error) = self;
match error {
duplicate @ app::CreateError::DuplicateName(_) => {
(StatusCode::BAD_REQUEST, duplicate.to_string()).into_response()
}
other => Internal::from(other).into_response(),
}
}
}
#[derive(Clone, serde::Deserialize)]
struct SendRequest {
message: String,
}
async fn on_send(
State(app): State<App>,
Path(channel): Path<Id>,
RequestedAt(sent_at): RequestedAt,
login: Login,
Json(request): Json<SendRequest>,
) -> Result<StatusCode, SendErrorResponse> {
app.messages()
.send(&channel, &login, &sent_at, &request.message)
.await?;
Ok(StatusCode::ACCEPTED)
}
#[derive(Debug, thiserror::Error)]
#[error(transparent)]
struct SendErrorResponse(#[from] SendError);
impl IntoResponse for SendErrorResponse {
fn into_response(self) -> Response {
let Self(error) = self;
match error {
not_found @ SendError::ChannelNotFound(_) => {
(StatusCode::NOT_FOUND, not_found.to_string()).into_response()
}
other => Internal::from(other).into_response(),
}
}
}
async fn on_delete(
State(app): State<App>,
Path(channel): Path<Id>,
RequestedAt(deleted_at): RequestedAt,
_: Login,
) -> Result<StatusCode, ErrorResponse> {
app.channels().delete(&channel, &deleted_at).await?;
Ok(StatusCode::ACCEPTED)
}
#[derive(Debug, thiserror::Error)]
#[error(transparent)]
struct ErrorResponse(#[from] app::Error);
impl IntoResponse for ErrorResponse {
fn into_response(self) -> Response {
let Self(error) = self;
match error {
not_found @ app::Error::NotFound(_) => {
(StatusCode::NOT_FOUND, not_found.to_string()).into_response()
}
other => Internal::from(other).into_response(),
}
}
}
async fn messages(
State(app): State<App>,
Path(channel): Path<Id>,
_: Login,
Query(query): Query<ResumeQuery>,
) -> Result<Messages, ErrorResponse> {
let messages = app
.channels()
.messages(&channel, query.resume_point)
.await?;
let response = Messages(
messages
.into_iter()
.map(|message| MessageView {
sent: message.sent,
sender: message.sender,
message: MessageInner {
id: message.id,
body: message.body,
},
})
.collect(),
);
Ok(response)
}
struct Messages(Vec<MessageView>);
#[derive(serde::Serialize)]
struct MessageView {
#[serde(flatten)]
sent: Instant,
sender: Login,
message: MessageInner,
}
#[derive(serde::Serialize)]
struct MessageInner {
id: message::Id,
body: String,
}
impl IntoResponse for Messages {
fn into_response(self) -> Response {
let Self(messages) = self;
Json(messages).into_response()
}
}
|
