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use chrono::NaiveDateTime;
use diesel::{BelongingToDsl, RunQueryDsl};
use diesel::{Connection, GroupedBy, PgConnection, QueryResult};
use crate::schema::{match_players, matches};
#[derive(Insertable)]
#[table_name = "matches"]
pub struct NewMatch<'a> {
pub log_path: &'a str,
}
#[derive(Insertable)]
#[table_name = "match_players"]
pub struct NewMatchPlayer {
/// id of the match this player is in
pub match_id: i32,
/// id of the bot behind this player
pub bot_id: i32,
/// player id within the match
pub player_id: i32,
}
#[derive(Queryable, Identifiable)]
#[table_name = "matches"]
pub struct MatchBase {
pub id: i32,
pub log_path: String,
pub created_at: NaiveDateTime,
}
#[derive(Queryable, Identifiable, Associations)]
#[primary_key(match_id, player_id)]
#[belongs_to(MatchBase, foreign_key = "match_id")]
pub struct MatchPlayer {
pub match_id: i32,
pub bot_id: i32,
pub player_id: i32,
}
pub struct MatchPlayerData {
pub bot_id: i32,
}
pub fn create_match(
match_data: &NewMatch,
match_players: &[MatchPlayerData],
conn: &PgConnection,
) -> QueryResult<i32> {
conn.transaction(|| {
let match_base = diesel::insert_into(matches::table)
.values(match_data)
.get_result::<MatchBase>(conn)?;
let match_players = match_players
.iter()
.enumerate()
.map(|(num, player_data)| NewMatchPlayer {
match_id: match_base.id,
bot_id: player_data.bot_id,
player_id: num as i32,
})
.collect::<Vec<_>>();
diesel::insert_into(match_players::table)
.values(&match_players)
.execute(conn)?;
Ok(match_base.id)
})
}
pub struct MatchData {
pub base: MatchBase,
pub match_players: Vec<MatchPlayer>,
}
pub fn list_matches(conn: &PgConnection) -> QueryResult<Vec<MatchData>> {
conn.transaction(|| {
let matches = matches::table.get_results::<MatchBase>(conn)?;
let match_players = MatchPlayer::belonging_to(&matches)
.load::<MatchPlayer>(conn)?
.grouped_by(&matches);
let res = matches
.into_iter()
.zip(match_players.into_iter())
.map(|(base, players)| MatchData {
base,
match_players: players.into_iter().collect(),
})
.collect();
Ok(res)
})
}
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