package fic

import ()

type Team struct {
	Id   int64  `json:"id"`
	Name string `json:"name"`
}

func GetTeams() ([]Team, error) {
	if rows, err := DBQuery("SELECT id_team, name FROM teams"); err != nil {
		return nil, err
	} else {
		defer rows.Close()

		var teams = make([]Team, 0)
		for rows.Next() {
			var t Team
			if err := rows.Scan(&t.Id, &t.Name); err != nil {
				return nil, err
			}
			teams = append(teams, t)
		}
		if err := rows.Err(); err != nil {
			return nil, err
		}

		return teams, nil
	}
}

func GetTeam(id int) (Team, error) {
	var t Team
	if err := DBQueryRow("SELECT id_team, name FROM teams WHERE id_team = ?", id).Scan(&t.Id, &t.Name); err != nil {
		return t, err
	}

	return t, nil
}

func CreateTeam(name string) (Team, error) {
	if res, err := DBExec("INSERT INTO teams (name) VALUES (?)", name); err != nil {
		return Team{}, err
	} else if tid, err := res.LastInsertId(); err != nil {
		return Team{}, err
	} else {
		return Team{tid, name}, nil
	}
}

func (t Team) Update() (int64, error) {
	if res, err := DBExec("UPDATE teams SET name = ? WHERE id_team = ?", t.Name, t.Id); err != nil {
		return 0, err
	} else if nb, err := res.RowsAffected(); err != nil {
		return 0, err
	} else {
		return nb, err
	}
}

func (t Team) Delete() (int64, error) {
	if res, err := DBExec("DELETE FROM team_members WHERE id_team = ?; DELETE FROM teams WHERE id_team = ?", t.Id, t.Id); err != nil {
		return 0, err
	} else if nb, err := res.RowsAffected(); err != nil {
		return 0, err
	} else {
		return nb, err
	}
}

func (t Team) HasSolved(e Exercice) bool {
	var nb int
	if err := DBQueryRow("SELECT COUNT(id_exercice) FROM exercice_solved WHERE id_team = ? AND id_exercice = ?", t.Id, e.Id).Scan(&nb); err != nil {
		return false
	} else {
		return nb > 0
	}
}