continue work on simulation

.gitignore

@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk

Cargo.lock

@@ -579,6 +579,7 @@ name = "playoffsbot"
 version = "0.1.0"
 dependencies = [
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

Cargo.toml

@@ -8,3 +8,4 @@ edition = "2018"
 chrono = { version = "0.4", features = ["serde"] }
 reqwest = "0.9"
 serde = { version = "1", features = ["derive"] }
+rand = "0.6"

src/main.rs

@@ -1,7 +1,200 @@
-mod nhlapi;
+use std::collections::BTreeSet;
 
-fn main() {
-    println!("Hello, world!");
-    let s = nhlapi::schedule::today().unwrap();
-    println!("{:#?}", s);
+use nhlapi::schedule::Game;
+use nhlapi::standings::TeamRecord;
+use nhlapi::teams::Team;
+
+mod nhlapi;
+mod simulation;
+
+pub struct Api {
+    teams: Vec<Team>,
+    past_standings: Vec<TeamRecord>,
+    standings: Vec<TeamRecord>,
+    results: nhlapi::schedule::Date,
+    games: nhlapi::schedule::Date,
+}
+
+impl Api {
+    pub fn get_team_by_abbrev(&self, abbrev: &str) -> &Team {
+        let abbrev = abbrev.to_ascii_uppercase();
+        self.teams
+            .iter()
+            .find(|t| t.abbrev == abbrev)
+            .expect("team abbrev not found")
+    }
+
+    pub fn get_points(&self, team_id: u32, past: bool) -> u32 {
+        if !past {
+            self.standings
+                .iter()
+                .find(|t| t.team.id == team_id)
+                .expect("team id not found")
+                .points
+        } else {
+            self.past_standings
+                .iter()
+                .find(|t| t.team.id == team_id)
+                .expect("team id not found")
+                .points
+        }
+    }
+}
+
+struct Analyzer<'a> {
+    api: &'a Api,
+    my_team: &'a Team,
+    own_conference_team_ids: BTreeSet<u32>,
+}
+
+impl Analyzer<'_> {
+    pub fn new<'a>(api: &'a Api, my_team: &'a Team) -> Analyzer<'a> {
+        let mut own_conference_team_ids = BTreeSet::new();
+        for team in &api.teams {
+            if team.conference.id == my_team.conference.id {
+                own_conference_team_ids.insert(team.id);
+            }
+        }
+        Analyzer {
+            api,
+            my_team,
+            own_conference_team_ids,
+        }
+    }
+
+    pub fn perform(&self) -> Analysis {
+        let mut my_game = None;
+        let mut games = vec![];
+        let mut my_result = None;
+        let mut results = vec![];
+
+        for game in &self.api.games.games {
+            let m = MatchupPre::create(self, game, false);
+            if m.is_relevant(self) {
+                if m.is_my_team_involed {
+                    my_game = Some(m.pick_winner(self));
+                } else {
+                    games.push(m.pick_winner(self));
+                }
+            }
+        }
+
+        for game in &self.api.results.games {
+            let m = MatchupPre::create(self, game, true);
+            if m.is_relevant(self) {
+                if m.is_my_team_involed {
+                    my_result = Some(m.pick_winner(self));
+                } else {
+                    results.push(m.pick_winner(self));
+                }
+            }
+        }
+
+        Analysis {
+            my_team: self.my_team,
+            my_game: my_game,
+            games: games,
+            my_result: my_result,
+            results: results,
+        }
+    }
+}
+
+#[derive(Debug)]
+struct Analysis<'a> {
+    pub my_team: &'a Team,
+    pub my_result: Option<Matchup<'a>>,
+    pub results: Vec<Matchup<'a>>,
+    pub my_game: Option<Matchup<'a>>,
+    pub games: Vec<Matchup<'a>>,
+}
+
+#[derive(Debug)]
+struct Matchup<'a> {
+    pub game: &'a Game,
+    pub is_result: bool,
+    pub is_my_team_involed: bool,
+    pub ideal_winner: &'a nhlapi::Team,
+}
+
+struct MatchupPre<'a> {
+    pub game: &'a Game,
+    pub is_result: bool,
+    pub is_my_team_involed: bool,
+}
+
+impl<'m> MatchupPre<'m> {
+    pub fn create<'a>(a: &'a Analyzer, game: &'a Game, is_result: bool) -> MatchupPre<'a> {
+        let is_my_team_involed =
+            game.teams.away.team.id == a.my_team.id || game.teams.home.team.id == a.my_team.id;
+        MatchupPre {
+            game,
+            is_result,
+            is_my_team_involed,
+        }
+    }
+
+    pub fn is_relevant(&self, a: &Analyzer) -> bool {
+        self.is_my_team_involed
+            || a.own_conference_team_ids
+                .contains(&self.game.home_team().id)
+            || a.own_conference_team_ids
+                .contains(&self.game.away_team().id)
+    }
+
+    pub fn pick_winner(self, a: &'m Analyzer) -> Matchup<'m> {
+        let home_team = self.game.home_team();
+        let away_team = self.game.away_team();
+
+        let ideal_winner = if self.is_my_team_involed {
+            if a.my_team.id == home_team.id {
+                home_team
+            } else if a.my_team.id == away_team.id {
+                away_team
+            } else {
+                panic!("unexpected case in pick_winner");
+            }
+        } else if a.own_conference_team_ids.contains(&home_team.id)
+            && !a.own_conference_team_ids.contains(&away_team.id)
+        {
+            away_team
+        } else if a.own_conference_team_ids.contains(&away_team.id)
+            && !a.own_conference_team_ids.contains(&home_team.id)
+        {
+            home_team
+        } else {
+            // TODO: simulation
+            home_team
+        };
+
+        Matchup {
+            game: self.game,
+            is_result: self.is_result,
+            is_my_team_involed: self.is_my_team_involed,
+            ideal_winner: ideal_winner,
+        }
+    }
+}
+
+fn main() -> reqwest::Result<()> {
+    let teams = nhlapi::teams::get()?;
+    let past_standings = nhlapi::standings::yesterday()?;
+    let standings = nhlapi::standings::today()?;
+    let results = nhlapi::schedule::yesterday()?;
+    let games = nhlapi::schedule::today()?;
+
+    let api = Api {
+        teams,
+        past_standings,
+        standings,
+        results,
+        games,
+    };
+
+    let a = Analyzer::new(&api, api.get_team_by_abbrev("mtl"));
+    let xd = a.perform();
+
+    println!("{:#?}", xd);
+
+    Ok(())
 }

src/nhlapi.rs

@@ -48,19 +48,19 @@ impl Serialize for Season {
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct LeagueRecord {
-    wins: u32,
-    losses: u32,
-    ot: u32,
+    pub wins: u32,
+    pub losses: u32,
+    pub ot: u32,
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct Team {
-    id: u32,
-    name: String,
+    pub id: u32,
+    pub name: String,
 }
 
 pub mod schedule {
-    use chrono::{DateTime, NaiveDate, Utc};
+    use chrono::{DateTime, Local, NaiveDate, Utc};
     use serde::{Deserialize, Serialize};
 
     use super::{LeagueRecord, Season, Team};
@@ -88,6 +88,15 @@ pub mod schedule {
         pub teams: Teams,
     }
 
+    impl Game {
+        pub fn home_team(&self) -> &Team {
+            &self.teams.home.team
+        }
+        pub fn away_team(&self) -> &Team {
+            &self.teams.away.team
+        }
+    }
+
     #[derive(Debug, Clone, Deserialize, Serialize)]
     pub struct Teams {
         pub away: TeamRecord,
@@ -99,15 +108,45 @@ pub mod schedule {
         pub team: Team,
         #[serde(rename = "leagueRecord")]
         pub league_record: LeagueRecord,
+        pub score: u32,
     }
 
-    pub fn today() -> reqwest::Result<Vec<Date>> {
-        let root: Root = reqwest::get("https://statsapi.web.nhl.com/api/v1/schedule")?.json()?;
+    pub fn get(date: &NaiveDate) -> reqwest::Result<Date> {
+        let date = format!("{}", date.format("%Y-%m-%d"));
+
+        let client = reqwest::Client::new();
+        let mut root: Root = client
+            .get("https://statsapi.web.nhl.com/api/v1/schedule")
+            .query(&[("date", date)])
+            .send()?
+            .json()?;
+        Ok(root.dates.remove(0))
+    }
+
+    pub fn get_range(begin: &NaiveDate, end: &NaiveDate) -> reqwest::Result<Vec<Date>> {
+        let begin = format!("{}", begin.format("%Y-%m-%d"));
+        let end = format!("{}", end.format("%Y-%m-%d"));
+
+        let client = reqwest::Client::new();
+        let root: Root = client
+            .get("https://statsapi.web.nhl.com/api/v1/schedule")
+            .query(&[("startDate", begin), ("endDate", end)])
+            .send()?
+            .json()?;
         Ok(root.dates)
     }
+
+    pub fn today() -> reqwest::Result<Date> {
+        get(&Local::today().naive_local())
+    }
+
+    pub fn yesterday() -> reqwest::Result<Date> {
+        get(&Local::today().naive_local().pred())
+    }
 }
 
 pub mod standings {
+    use chrono::{Local, NaiveDate};
     use serde::{Deserialize, Serialize};
 
     use super::{from_str, LeagueRecord, Team};
@@ -125,32 +164,92 @@ pub mod standings {
 
     #[derive(Debug, Clone, Deserialize, Serialize)]
     pub struct TeamRecord {
-        team: Team,
+        pub team: Team,
         #[serde(rename = "leagueRecord")]
-        league_record: LeagueRecord,
+        pub league_record: LeagueRecord,
 
         #[serde(rename = "goalsAgainst")]
-        goals_against: u32,
+        pub goals_against: u32,
         #[serde(rename = "goalsScored")]
-        goals_scored: u32,
-        points: u32,
-        row: u32,
+        pub goals_scored: u32,
+        pub points: u32,
+        pub row: u32,
         #[serde(rename = "gamesPlayed")]
-        games_played: u32,
+        pub games_played: u32,
 
         #[serde(rename = "divisionRank", deserialize_with = "from_str")]
-        division_rank: u32,
+        pub division_rank: u32,
         #[serde(rename = "conferenceRank", deserialize_with = "from_str")]
-        conference_rank: u32,
+        pub conference_rank: u32,
         #[serde(rename = "leagueRank", deserialize_with = "from_str")]
-        league_rank: u32,
+        pub league_rank: u32,
         #[serde(rename = "wildCardRank", deserialize_with = "from_str")]
-        wildcard_rank: u32,
+        pub wildcard_rank: u32,
+    }
+
+    pub fn get(date: &NaiveDate) -> reqwest::Result<Vec<TeamRecord>> {
+        let date = format!("{}", date.format("%Y-%m-%d"));
+        let client = reqwest::Client::new();
+        let mut root: Root = client
+            .get("https://statsapi.web.nhl.com/api/v1/standings/byLeague")
+            .query(&[("date", date)])
+            .send()?
+            .json()?;
+        Ok(root.records.remove(0).team_records)
     }
 
     pub fn today() -> reqwest::Result<Vec<TeamRecord>> {
-        let mut root: Root =
-            reqwest::get("https://statsapi.web.nhl.com/api/v1/standings/byLeague")?.json()?;
-        Ok(root.records.remove(0).team_records)
+        get(&Local::today().naive_local())
+    }
+
+    pub fn yesterday() -> reqwest::Result<Vec<TeamRecord>> {
+        get(&Local::today().naive_local().pred())
+    }
+}
+
+pub mod teams {
+    use std::cmp;
+
+    use serde::{Deserialize, Serialize};
+
+    #[derive(Debug, Clone, Deserialize, Serialize)]
+    struct Root {
+        teams: Vec<Team>,
+    }
+
+    #[derive(Debug, Clone, Deserialize, Serialize)]
+    pub struct Team {
+        pub id: u32,
+        #[serde(rename = "name")]
+        pub full_name: String,
+        #[serde(rename = "abbreviation")]
+        pub abbrev: String,
+        #[serde(rename = "teamName")]
+        pub name: String,
+        #[serde(rename = "locationName")]
+        pub location: String,
+        pub division: Division,
+        pub conference: Conference,
+    }
+
+    #[derive(Debug, Clone, Deserialize, Serialize)]
+    pub struct Division {
+        pub id: u32,
+        pub name: String,
+    }
+
+    #[derive(Debug, Clone, Deserialize, Serialize)]
+    pub struct Conference {
+        pub id: u32,
+        pub name: String,
+    }
+
+    pub fn get() -> reqwest::Result<Vec<Team>> {
+        let client = reqwest::Client::new();
+        let root: Root = client
+            .get("https://statsapi.web.nhl.com/api/v1/teams")
+            .send()?
+            .json()?;
+        Ok(root.teams)
     }
 }

src/simulation.rs

@@ -0,0 +1,34 @@
+use rand::seq::SliceRandom;
+
+use crate::nhlapi::LeagueRecord;
+
+#[derive(Debug, Copy, Clone)]
+struct Entry {
+    team_id: u32,
+    division_id: u32,
+    conference_id: u32,
+    wins: u32,
+    losses: u32,
+    ot: u32,
+    points: u32,
+}
+
+#[derive(Debug, Copy, Clone)]
+enum Event {
+    Win,
+    Loss,
+    Ot,
+}
+
+fn random_event(rec: &LeagueRecord) -> Event {
+    [
+        (Event::Win, rec.wins),
+        (Event::Loss, rec.losses),
+        (Event::Ot, rec.ot),
+    ]
+    .choose_weighted(&mut rand::thread_rng(), |x| x.1)
+    .unwrap()
+    .0
+}
+
+pub struct Simulation {}