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|
use crate::{
graphql::types::{
alert,
jwt::{self, Authentication},
position,
user::find_user,
},
state::AppState,
};
use async_graphql::{Context, Error, FieldResult, Object};
/// Mutation struct
pub struct Mutation;
#[Object]
impl Mutation {
/// Make GraphQL login
async fn login<'ctx>(
&self,
ctx: &Context<'ctx>,
input: jwt::LoginCredentials,
) -> FieldResult<jwt::AuthBody> {
let state = ctx.data::<AppState>().expect("Can't connect to db");
let client = &*state.client;
let password = sha256::digest(input.password);
let rows = client
.query(
"SELECT id FROM users WHERE email = $1 AND password = $2",
&[&input.email, &password],
)
.await
.unwrap();
let id: Vec<i32> = rows.iter().map(|row| row.get(0)).collect();
if id.len() == 1 {
// Create a new claim using the found ID
let claims = jwt::Claims::new(id[0]);
let token = claims.get_token().unwrap();
Ok(jwt::AuthBody::new(token, id[0]))
} else {
Err(Error::new("Invalid email or password"))
}
}
/// Make GraphQL request to create new position to track
async fn new_position<'ctx>(
&self,
ctx: &Context<'ctx>,
input: position::PositionInput,
) -> FieldResult<position::Position> {
let state = ctx.data::<AppState>().expect("Can't connect to db");
let client = &*state.client;
let auth: &Authentication = ctx.data().unwrap();
match auth {
Authentication::NotLogged => Err(Error::new("Can't find the owner")),
Authentication::Logged(claims) => {
let rows = client
.query(
"INSERT INTO positions (user_id, location, activity)
VALUES (
$1,
ST_SetSRID(ST_MakePoint($2, $3), 4326),
$4
)
RETURNING id, user_id, extract(epoch from created_at)::double precision as created_at, ST_Y(location::geometry) AS latitude, ST_X(location::geometry) AS longitude, activity
",
&[
&claims.user_id,
&input.longitude,
&input.latitude,
&input.moving_activity,
],
)
.await
.unwrap();
let positions: Vec<position::Position> = rows
.iter()
.map(|row| position::Position {
id: row.get("id"),
user_id: row.get("user_id"),
created_at: row.get::<_, f64>("created_at") as i64,
latitude: row.get("latitude"),
longitude: row.get("longitude"),
moving_activity: row.get("activity"),
})
.collect();
Ok(positions[0].clone())
}
}
}
/// Make GraphQL request to create new alert. Only for admins.
async fn new_alert<'ctx>(
&self,
ctx: &Context<'ctx>,
input: alert::AlertInput,
) -> FieldResult<alert::Alert> {
let state = ctx.data::<AppState>().expect("Can't connect to db");
let client = &*state.client;
let auth: &Authentication = ctx.data().unwrap();
match auth {
Authentication::NotLogged => Err(Error::new("Can't find the owner")),
Authentication::Logged(claims) => {
let claim_user = find_user(client, claims.user_id)
.await
.expect("Should not be here");
if !claim_user.is_admin {
return Err(Error::new("Unauthorized"));
}
let points: String = input
.points
.iter()
.map(|x| {
format!(
"ST_SetSRID(ST_MakePoint({}, {}), 4326)",
x.longitude, x.latitude
)
})
.collect::<Vec<String>>()
.join(",");
let polygon = format!(
"ST_MakePolygon(
ST_MakeLine(
ARRAY[{}]
)
)",
points
);
match client
.query(&format!("SELECT ST_IsValid({}) as is_valid", polygon), &[])
.await
{
Ok(rows) => {
let valids: Vec<alert::PolygonValid> = rows
.iter()
.map(|row| alert::PolygonValid {
is_valid: row.get("is_valid"),
})
.collect();
if valids[0].is_valid == false {
return Err(Error::new("Polygon is not valid"));
}
}
Err(e) => return Err(e.into()),
};
let query = format!(
"INSERT INTO alerts (user_id, area, level)
VALUES($1, {}, $2)
RETURNING
id,
user_id,
extract(epoch from created_at)::double precision as created_at,
ST_AsText(area) as area,
ST_AsText(
ST_Buffer(
area::geography,
CASE
WHEN level = 'One' THEN 0
WHEN level = 'Two' THEN 1000
WHEN level = 'Three' THEN 2000
ELSE 0
END
)
) as extended_area,
level,
reached_users",
polygon
);
match client.query(&query, &[&claims.user_id, &input.level]).await {
Ok(rows) => {
let alerts: Vec<alert::Alert> = rows
.iter()
.map(|row| alert::Alert {
id: row.get("id"),
user_id: row.get("user_id"),
created_at: row.get::<_, f64>("created_at") as i64,
area: row.get("area"),
extended_area: row.get("extended_area"),
level: row.get("level"),
reached_users: row.get("reached_users"),
})
.collect();
// TODO: Send notifications
Ok(alerts[0].clone())
}
Err(e) => Err(e.into()),
}
}
}
}
}
|
