added fixture scheduling

internal/db/fixture.go

@@ -28,6 +28,35 @@ type Fixture struct {
 	League   *League `bun:"rel:belongs-to,join:league_id=id"`
 	HomeTeam *Team   `bun:"rel:belongs-to,join:home_team_id=id"`
 	AwayTeam *Team   `bun:"rel:belongs-to,join:away_team_id=id"`
+
+	Schedules []*FixtureSchedule `bun:"rel:has-many,join:id=fixture_id"`
+}
+
+// CanSchedule checks if the user is a manager of one of the teams in the fixture.
+// Returns (canSchedule, teamID) where teamID is the team the user manages (0 if not a manager).
+func (f *Fixture) CanSchedule(ctx context.Context, tx bun.Tx, user *User) (bool, int, error) {
+	if user == nil || user.Player == nil {
+		return false, 0, nil
+	}
+	roster := new(TeamRoster)
+	err := tx.NewSelect().
+		Model(roster).
+		Column("team_id", "is_manager").
+		Where("team_id IN (?)", bun.In([]int{f.HomeTeamID, f.AwayTeamID})).
+		Where("season_id = ?", f.SeasonID).
+		Where("league_id = ?", f.LeagueID).
+		Where("player_id = ?", user.Player.ID).
+		Scan(ctx)
+	if err != nil {
+		if err.Error() == "sql: no rows in result set" {
+			return false, 0, nil
+		}
+		return false, 0, errors.Wrap(err, "tx.NewSelect")
+	}
+	if !roster.IsManager {
+		return false, 0, nil
+	}
+	return true, roster.TeamID, nil
 }
 
 func NewFixture(ctx context.Context, tx bun.Tx, seasonShortName, leagueShortName string,