Add initial database setup and user/artist management functionality

api/sqlc/users.sql.go

@@ -0,0 +1,58 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.30.0
+// source: users.sql
+
+package sqlc
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const checkUserExistsByEmail = `-- name: CheckUserExistsByEmail :one
+SELECT id FROM users WHERE user_mail = $1
+`
+
+func (q *Queries) CheckUserExistsByEmail(ctx context.Context, userMail string) (pgtype.UUID, error) {
+	row := q.db.QueryRow(ctx, checkUserExistsByEmail, userMail)
+	var id pgtype.UUID
+	err := row.Scan(&id)
+	return id, err
+}
+
+const createUser = `-- name: CreateUser :one
+INSERT INTO users (id, user_name, user_mail, password) VALUES ($1, $2, $3, $4) RETURNING id
+`
+
+type CreateUserParams struct {
+	ID       pgtype.UUID `json:"id"`
+	UserName string      `json:"user_name"`
+	UserMail string      `json:"user_mail"`
+	Password string      `json:"password"`
+}
+
+func (q *Queries) CreateUser(ctx context.Context, arg CreateUserParams) (pgtype.UUID, error) {
+	row := q.db.QueryRow(ctx, createUser,
+		arg.ID,
+		arg.UserName,
+		arg.UserMail,
+		arg.Password,
+	)
+	var id pgtype.UUID
+	err := row.Scan(&id)
+	return id, err
+}
+
+const getUsernameByID = `-- name: GetUsernameByID :one
+SELECT user_name FROM users WHERE id = $1
+`
+
+// users.sql
+func (q *Queries) GetUsernameByID(ctx context.Context, id pgtype.UUID) (string, error) {
+	row := q.db.QueryRow(ctx, getUsernameByID, id)
+	var user_name string
+	err := row.Scan(&user_name)
+	return user_name, err
+}