Write patch for generating weekly matchup results

app/models/Lineup.model.js

@@ -32,6 +32,17 @@ class Lineup extends Model {
         }
     }
 
+    async calculate_fantasy_points() {
+        const starting_players = await this.players_in_starting()
+        let points = 0
+
+        for ( const player of starting_players ) {
+            points += await player.points_for_week(this.week_num)
+        }
+
+        return points
+    }
+
     /**
      * Given a team, fetch the latest draft lineup for that team.
      * This will also update the lineup record so that it includes all players

app/models/Matchup.model.js

@@ -15,6 +15,16 @@ class Matchup extends Model {
             visitor_team_score: Number,
         }
     }
+
+    async home_team() {
+        const Team = this.models.get('Team')
+        return Team.findById(this.home_team_id)
+    }
+
+    async visitor_team() {
+        const Team = this.models.get('Team')
+        return Team.findById(this.visitor_team_id)
+    }
 }
 
 module.exports = exports = Matchup

app/models/Player.model.js

@@ -81,6 +81,11 @@ class Player extends Model {
         })
     }
 
+    async points_for_week(week_num) {
+        const WeeklyPlayerStat = this.models.get('WeeklyPlayerStat')
+        return WeeklyPlayerStat.findOne({ week_num, player_id: this.id })
+    }
+
     async is_obligated() {
         const Team = this.models.get('Team')
         const teams = await Team.find()