~xenrox/10man-api

ref: 8b2ba79f0125c78292f73e746e8b4f1494cc3fa5 10man-api/graph/schema.resolvers.go -rw-r--r-- 13.0 KiB
8b2ba79fThorben Günther Add captains to getTeams; will be used for map veto 1 year, 15 days ago
                                                                                
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package graph

// This file will be automatically regenerated based on the schema, any resolver implementations
// will be copied through when generating and any unknown code will be moved to the end.

import (
	"context"
	"database/sql"
	"encoding/json"
	"errors"
	"fmt"
	"io/ioutil"
	"math/rand"
	"net/http"
	"time"

	"git.xenrox.net/~xenrox/10man-api/config"
	"git.xenrox.net/~xenrox/10man-api/database"
	"git.xenrox.net/~xenrox/10man-api/functions"
	"git.xenrox.net/~xenrox/10man-api/graph/generated"
	"git.xenrox.net/~xenrox/10man-api/graph/model"
	"git.xenrox.net/~xenrox/10man-api/logic"
)

// save current map vote
var voteMaps []string
var voteStatus string

func (r *mutationResolver) CreateUser(ctx context.Context, input model.NewUser) (string, error) {
	type Elo struct {
		Elo int `json:"Elo"`
	}
	var elo Elo

	url := "https://faceit.xenrox.net/api/elo/" + input.SteamID
	resp, err := http.Get(url)
	if err != nil {
		return "", err
	}
	defer resp.Body.Close()

	if resp.StatusCode >= 400 {
		return "", errors.New("wrong steamID64")
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return "", err
	}

	err = json.Unmarshal(body, &elo)
	if err != nil {
		return "", err
	}

	// get admin status
	isAdmin := false
	for _, adminID := range config.Admins {
		if input.SteamID == adminID {
			isAdmin = true
			break
		}
	}

	query := `
		INSERT INTO "User" (steam_id, teamspeak_id, elo, admin, avatar, name)
		VALUES ($1, $2, $3, $4, $5, $6)`
	_, err = database.DB.Exec(query, input.SteamID, input.TeamspeakID, elo.Elo,
		isAdmin, input.Avatar, input.Name)
	if err != nil {
		return "", database.CheckErrorCode(err)
	}

	return "Created", nil
}

func (r *mutationResolver) DeleteUser(ctx context.Context, id int) (string, error) {
	query := `DELETE FROM "User" WHERE id = $1`
	_, err := database.DB.Exec(query, id)
	return "Deleted", err
}

func (r *mutationResolver) UpdateUser(ctx context.Context, id int, input model.UserInput) (*model.User, error) {
	var user model.User

	tx, err := database.DB.Begin()
	if err != nil {
		return nil, err
	}
	defer tx.Rollback()

	if input.Elo != nil {
		query := `
			UPDATE "User"
			SET elo = $1
			WHERE id = $2`
		_, err := tx.Exec(query, input.Elo, id)
		if err != nil {
			return nil, fmt.Errorf("failed to update elo: %w", err)
		}
	}

	if input.TeamspeakID != nil {
		query := `
			UPDATE "User"
			SET teamspeak_id = $1
			WHERE id = $2`
		_, err := tx.Exec(query, input.TeamspeakID, id)
		if err != nil {
			return nil, fmt.Errorf("failed to update teamspeakID: %w", err)
		}
	}

	if input.Avatar != nil {
		query := `
			UPDATE "User"
			SET avatar = $1
			WHERE id = $2`
		_, err := tx.Exec(query, input.Avatar, id)
		if err != nil {
			return nil, fmt.Errorf("failed to update avatar: %w", err)
		}
	}

	if input.Name != nil {
		query := `
			UPDATE "User"
			SET name = $1
			WHERE id = $2`
		_, err := tx.Exec(query, input.Name, id)
		if err != nil {
			return nil, fmt.Errorf("failed to update name: %w", err)
		}
	}

	query := `
		SELECT steam_id, teamspeak_id, elo, admin, avatar, name
		FROM "User"
		WHERE id = $1`
	err = tx.QueryRow(query, id).Scan(&user.SteamID, &user.TeamspeakID,
		&user.Elo, &user.Admin, &user.Avatar, &user.Name)
	if err != nil {
		return nil, err
	}

	err = tx.Commit()
	if err != nil {
		return nil, err
	}

	return &user, nil
}

func (r *mutationResolver) StartQueue(ctx context.Context, teamspeakID string) (int, error) {
	players, err := database.PlayersInQueue()
	if err != nil {
		return players, err
	}

	// if no players are in queue, check if a match is ongoing and queueing up
	// is forbidden
	if players == 0 {
		id := -1
		query := `
			SELECT id
			FROM "Match"
			WHERE status = 'ongoing'`
		err := database.DB.QueryRow(query).Scan(&id)
		if err == nil {
			return players, errors.New("cannot queue, match still ongoing")
		} else if err != nil && !errors.Is(err, sql.ErrNoRows) {
			return players, err
		}
	}

	if players == 10 {
		return players, errors.New("queue is full")
	}

	query := `
		UPDATE "User"
		SET queueing = true
		WHERE teamspeak_id = $1 AND NOT queueing`
	result, err := database.DB.Exec(query, teamspeakID)
	if err != nil {
		return players, fmt.Errorf("QueueFail: %w", err)
	}

	count, err := result.RowsAffected()
	if err != nil {
		return players, err
	}

	// check if user already was in queue or if he does not even exist
	if count != 1 {
		queueing := false
		query = `
			SELECT queueing
			FROM "User"
			WHERE teamspeak_id = $1`
		err = database.DB.QueryRow(query, teamspeakID).Scan(&queueing)
		if err != nil {
			return players, database.CheckErrorCode(err)
		}

		if queueing {
			return players, errors.New("already in queue")
		}
		return players, errors.New("queueing failed")
	}

	players++

	return players, nil
}

func (r *mutationResolver) CancelQueue(ctx context.Context, teamspeakID string) (int, error) {
	query := `
		UPDATE "User"
		SET queueing = false
		WHERE teamspeak_id = $1 AND queueing`
	result, err := database.DB.Exec(query, teamspeakID)
	if err != nil {
		return -1, err
	}

	count, err := result.RowsAffected()
	if err != nil {
		return -1, err
	}

	if count != 1 {
		return -1, errors.New("user not in queue")
	}

	players, err := database.PlayersInQueue()
	return players, err
}

func (r *mutationResolver) CreateMatch(ctx context.Context) (int, error) {
	query := `
		SELECT id, elo
		FROM "User"
		WHERE queueing
	`
	rows, err := database.DB.Query(query)
	if err != nil {
		return -1, err
	}
	defer rows.Close()

	var players logic.Players
	index := 0
	for rows.Next() {
		if err := rows.Scan(&players[index][0], &players[index][1]); err != nil {
			return -1, fmt.Errorf("failed to read players: %w", err)
		}
		index++
	}
	if err = rows.Err(); err != nil {
		return -1, err
	}
	// check if 10 players in queue
	if index != 10 {
		return -1, errors.New("queue is not full")
	}

	tx, err := database.DB.Begin()
	if err != nil {
		return -1, err
	}
	defer tx.Rollback()

	team1, team2 := logic.BalanceTeams(players)
	query = `
		INSERT INTO "Team" (p1, p2, p3, p4, p5)
		VALUES ($1, $2, $3, $4, $5)
		RETURNING id`

	err = tx.QueryRow(query, team1.Players[0], team1.Players[1],
		team1.Players[2], team1.Players[3], team1.Players[4]).Scan(&team1.ID)
	if err != nil {
		return -1, err
	}

	err = tx.QueryRow(query, team2.Players[0], team2.Players[1],
		team2.Players[2], team2.Players[3], team2.Players[4]).Scan(&team2.ID)
	if err != nil {
		return -1, err
	}

	query = `
		INSERT INTO "Match" (t1, t2, elo1, elo2)
		VALUES ($1, $2, $3, $4)
		RETURNING id`
	matchID := -1
	err = tx.QueryRow(query, team1.ID, team2.ID, team1.Elo, team2.Elo).Scan(&matchID)
	if err != nil {
		return -1, err
	}

	// clear queueing status
	query = `UPDATE "User"
		SET queueing = false
		where queueing`
	_, err = tx.Exec(query)
	if err != nil {
		return -1, err
	}

	err = tx.Commit()
	if err != nil {
		return -1, err
	}

	// initialize map vote (maps and random voter)
	voteMaps = config.Maps
	rand.Seed(time.Now().UTC().UnixNano())
	voter := rand.Intn(2)
	if voter == 0 {
		voteStatus = "TEAM1"
	} else {
		voteStatus = "TEAM2"
	}

	return matchID, nil
}

func (r *mutationResolver) CancelMatch(ctx context.Context) (string, error) {
	query := `
		UPDATE "Match"
		SET status = 'cancelled'
		WHERE status = 'ongoing'`
	result, err := database.DB.Exec(query)
	if err != nil {
		return "CancelFail", err
	}

	count, err := result.RowsAffected()
	if err != nil {
		return "CancelFail", err
	}

	if count != 1 {
		return "CancelFail", errors.New("no match ongoing")
	}

	return "CancelSuccess", nil
}

func (r *mutationResolver) FinishMatch(ctx context.Context, winner string) (string, error) {
	var team1, team2 logic.Team

	query := `
		SELECT t1, t2, elo1, elo2
		FROM "Match"
		WHERE status = 'ongoing'`
	err := database.DB.QueryRow(query).
		Scan(&team1.ID, &team2.ID, &team1.Elo, &team2.Elo)
	if err != nil {
		if errors.Is(err, sql.ErrNoRows) {
			return "FinishFail", errors.New("no match ongoing")
		}
		return "FinishFail", err
	}

	delta1, delta2, err := logic.EloChange(team1.Elo, team2.Elo, winner)
	if err != nil {
		return "FinishFail", err
	}

	tx, err := database.DB.Begin()
	if err != nil {
		return "FinishFail", err
	}
	defer tx.Rollback()

	query = `
		UPDATE "User" SET elo = elo + $1 WHERE id IN
		(SELECT unnest(array[p1, p2, p3, p4, p5]) FROM "Team" WHERE id = $2)`
	_, err = tx.Exec(query, delta1, team1.ID)
	if err != nil {
		return "FinishFail", err
	}

	_, err = tx.Exec(query, delta2, team2.ID)
	if err != nil {
		return "FinishFail", err
	}

	query = `
		UPDATE "Match"
		SET status = 'finished'
		WHERE status = 'ongoing'`
	_, err = tx.Exec(query)
	if err != nil {
		return "FinishFail", err
	}

	err = tx.Commit()
	if err != nil {
		return "FinishFail", err
	}

	return "FinishSuccess", nil
}

func (r *mutationResolver) VetoMap(ctx context.Context, mapArg *string) (*model.MapVote, error) {
	var mapVote model.MapVote

	if mapArg == nil {
		// return all remaining maps
		mapVote.Maps = voteMaps
		mapVote.Status = voteStatus

		return &mapVote, nil
	}

	if voteStatus == "DONE" {
		return nil, errors.New("vote is done")
	}

	length := len(voteMaps)

	// check if voted map is in remaining
	contains, i := functions.SliceContains(voteMaps, *mapArg)
	if !contains {
		return nil, errors.New("no legal vote")
	}
	voteMaps[i] = voteMaps[length-1]
	voteMaps = voteMaps[:length-1]

	if length == 2 {
		voteStatus = "DONE"

		// save in database
		query := `
			UPDATE "Match"
			SET map = $1
			WHERE status = 'ongoing'`
		_, err := database.DB.Exec(query, voteMaps[0])
		if err != nil {
			return nil, fmt.Errorf("failed to update match map: %w", err)
		}
	} else if voteStatus == "TEAM1" {
		voteStatus = "TEAM2"
	} else if voteStatus == "TEAM2" {
		voteStatus = "TEAM1"
	}

	mapVote.Maps = voteMaps
	mapVote.Status = voteStatus

	return &mapVote, nil
}

func (r *queryResolver) UserBySteam(ctx context.Context, steamID string) (*model.User, error) {
	var user model.User
	user.SteamID = steamID

	query := `
		SELECT id, teamspeak_id, Elo, admin, avatar, name
		FROM "User"
		WHERE steam_id = $1`
	err := database.DB.QueryRow(query, steamID).Scan(&user.ID,
		&user.TeamspeakID, &user.Elo, &user.Admin, &user.Avatar, &user.Name)
	if err != nil {
		return nil, database.CheckErrorCode(err)
	}

	return &user, nil
}

func (r *queryResolver) UserByTs(ctx context.Context, teamspeakID string) (*model.User, error) {
	var user model.User
	user.TeamspeakID = teamspeakID

	query := `
		SELECT id, steam_id, Elo, admin, avatar, name
		FROM "User"
		WHERE teamspeak_id = $1`
	err := database.DB.QueryRow(query, teamspeakID).Scan(&user.ID,
		&user.SteamID, &user.Elo, &user.Admin, &user.Avatar, &user.Name)
	if err != nil {
		return nil, database.CheckErrorCode(err)
	}

	return &user, nil
}

func (r *queryResolver) GetTeams(ctx context.Context, id *int) (*model.Teams, error) {
	var teams model.Teams
	var team1, team2 []*model.User
	var err error
	var rows *sql.Rows

	tx, err := database.DB.Begin()
	if err != nil {
		return nil, database.CheckErrorCode(err)
	}
	defer tx.Rollback()

	query := `
	    SELECT "User".id, "User".steam_id, "User".teamspeak_id, "User".elo,
		"User".admin, "User".avatar, "User".name FROM (
	    SELECT unnest( array[ "Team".p1, "Team".p2, "Team".p3, "Team".p4, "Team".p5] )
        AS inner_query, status, "Match".id  FROM "Match"
		LEFT JOIN "Team" ON "Match".%s = "Team".id) AS member
	    LEFT JOIN "User" ON member.inner_query = "User".id`

	// Team 1
	if id != nil {
		// get match by id
		query += "\nWHERE member.id = $1"
		rows, err = tx.Query(fmt.Sprintf(query, "t1"), id)
	} else {
		// get ongoing match
		query += "\nWHERE member.status = 'ongoing'"
		rows, err = tx.Query(fmt.Sprintf(query, "t1"))
	}

	if err != nil {
		return nil, database.CheckErrorCode(err)
	}
	defer rows.Close()

	for rows.Next() {
		var user model.User
		if err := rows.Scan(&user.ID, &user.SteamID, &user.TeamspeakID,
			&user.Elo, &user.Admin, &user.Avatar, &user.Name); err != nil {
			return nil, database.CheckErrorCode(err)
		}

		team1 = append(team1, &user)
	}
	if err = rows.Err(); err != nil {
		return nil, database.CheckErrorCode(err)
	}

	// Team 2
	if id != nil {
		// get match by id
		rows, err = tx.Query(fmt.Sprintf(query, "t2"), id)
	} else {
		// get ongoing match
		rows, err = tx.Query(fmt.Sprintf(query, "t2"))
	}

	if err != nil {
		return nil, database.CheckErrorCode(err)
	}
	defer rows.Close()

	for rows.Next() {
		var user model.User
		if err := rows.Scan(&user.ID, &user.SteamID, &user.TeamspeakID,
			&user.Elo, &user.Admin, &user.Avatar, &user.Name); err != nil {
			return nil, database.CheckErrorCode(err)
		}

		team2 = append(team2, &user)
	}
	if err = rows.Err(); err != nil {
		return nil, database.CheckErrorCode(err)
	}

	teams.Team1, teams.Team2 = team1, team2
	// players with highest elo are captains
	teams.Captain1, teams.Captain2 = team1[1], team2[1]
	return &teams, nil
}

// Mutation returns generated.MutationResolver implementation.
func (r *Resolver) Mutation() generated.MutationResolver { return &mutationResolver{r} }

// Query returns generated.QueryResolver implementation.
func (r *Resolver) Query() generated.QueryResolver { return &queryResolver{r} }

type mutationResolver struct{ *Resolver }
type queryResolver struct{ *Resolver }