{
  groupsUsers {
    id
    group {
      id
    }
    user {
      id
      name
      email
      password
      type
    }
  }
}

{
  "errors": [
    {
      "message": "Field "group" must not have a selection since type "Int!" has no subfields.",
      "locations": [
        {
          "line": 4,
          "column": 11
        }
      ],
      "stack": [
        "Field "group" must not have a selection since type "Int!" has no subfields.",
        "",
        "GraphQL request (4:11)",
        "3:     id",
        "4:     group {",
        "             ^",
        "5:       id",
        "",
        "    at Object.Field (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\rules\ScalarLeafs.js:50:33)",
        "    at Object.enter (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:333:29)",
        "    at Object.enter (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:384:25)",
        "    at visit (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:251:26)",
        "    at validate (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\validate.js:63:22)",
        "    at C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\express-graphql\dist\index.js:154:52",
        "    at process.internalTickCallback (internal/process/next_tick.js:77:7)"
      ]
    },
    {
      "message": "Field "group" argument "id" of type "Int!" is required but not provided.",
      "locations": [
        {
          "line": 4,
          "column": 5
        }
      ],
      "stack": [
        "Field "group" argument "id" of type "Int!" is required but not provided.",
        "",
        "GraphQL request (4:5)",
        "3:     id",
        "4:     group {",
        "       ^",
        "5:       id",
        "",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\rules\ProvidedRequiredArguments.js:71:35)",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:354:29)",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:404:21)",
        "    at visit (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:251:26)",
        "    at validate (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\validate.js:63:22)",
        "    at C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\express-graphql\dist\index.js:154:52",
        "    at process.internalTickCallback (internal/process/next_tick.js:77:7)"
      ]
    },
    {
      "message": "Field "user" must not have a selection since type "Int!" has no subfields.",
      "locations": [
        {
          "line": 7,
          "column": 10
        }
      ],
      "stack": [
        "Field "user" must not have a selection since type "Int!" has no subfields.",
        "",
        "GraphQL request (7:10)",
        "6:     }",
        "7:     user {",
        "            ^",
        "8:       id",
        "",
        "    at Object.Field (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\rules\ScalarLeafs.js:50:33)",
        "    at Object.enter (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:333:29)",
        "    at Object.enter (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:384:25)",
        "    at visit (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:251:26)",
        "    at validate (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\validate.js:63:22)",
        "    at C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\express-graphql\dist\index.js:154:52",
        "    at process.internalTickCallback (internal/process/next_tick.js:77:7)"
      ]
    },
    {
      "message": "Field "user" argument "id" of type "Int!" is required but not provided.",
      "locations": [
        {
          "line": 7,
          "column": 5
        }
      ],
      "stack": [
        "Field "user" argument "id" of type "Int!" is required but not provided.",
        "",
        "GraphQL request (7:5)",
        "6:     }",
        "7:     user {",
        "       ^",
        "8:       id",
        "",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\rules\ProvidedRequiredArguments.js:71:35)",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:354:29)",
        "    at Object.leave (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:404:21)",
        "    at visit (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\language\visitor.js:251:26)",
        "    at validate (C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\graphql\validation\validate.js:63:22)",
        "    at C:\Users\Администратор.WIN-T6JHM2R3APV\Documents\GitHub\vertex-edu-server\node_modules\express-graphql\dist\index.js:154:52",
        "    at process.internalTickCallback (internal/process/next_tick.js:77:7)"
      ]
    }
  ]
}

const User=new GraphQLObjectType({
    name:'User',
    fields: () => {
        return ({
            id: {type: new GraphQLNonNull(GraphQLInt)},
            name: {type: new GraphQLNonNull(GraphQLString)},
            email: {type: new GraphQLNonNull(GraphQLString)},
            password: {type: new GraphQLNonNull(GraphQLString)},
            type: {type: new GraphQLNonNull(GraphQLString)}
        });
    }
});

const Group=new GraphQLObjectType({
    name:'Group',
    fields: () => {
        return ({
            id: {type: new GraphQLNonNull(GraphQLInt)}
        });
    }
});

const GroupUser=new GraphQLObjectType({
    name:'GroupUser',
    fields: () => {
        return ({
            id: {type: new GraphQLNonNull(GraphQLInt)},
            group: {
                type:  new GraphQLNonNull(GraphQLInt),
                fields: () => {
                    return ({
                        id: {type: new GraphQLNonNull(GraphQLInt)}
                    });
                },
                args: {
                    id: {type: new GraphQLNonNull(GraphQLInt)}
                },
                resolve: async function (source, {id}) {
                    return (await util.searchSql($sql.groupQueryById, id))[0];
                }
            },
            user: {
                type:  new GraphQLNonNull(GraphQLInt),
                fields: () => {
                    return ({
                        id: {type: new GraphQLNonNull(GraphQLInt)},
                        name: {type: new GraphQLNonNull(GraphQLString)},
                        email: {type: new GraphQLNonNull(GraphQLString)},
                        password: {type: new GraphQLNonNull(GraphQLString)},
                        type: {type: new GraphQLNonNull(GraphQLString)}
                    });
                },
                args: {
                    id: {type: new GraphQLNonNull(GraphQLInt)}
                },
                resolve: async function (source, {id}) {
                    return (await util.searchSql($sql.userQueryById, [id]))[0];
                }
            }
        });
    },
});

module.exports = {
    query: {
        user: {
            type: new GraphQLList(User),
            args: {
                id: {type: new GraphQLNonNull(GraphQLInt)},
            },
            resolve: async function (source, {id}) {
                return await (util.searchSql($sql.userQueryById, [id]));
            }
        },
        users: {
            type: new GraphQLList(User),
            resolve: async function () {
                return await util.searchSql($sql.userQueryAll);
            }
        },
        group: {
            type: new GraphQLList(Group),
            args: {
                id: {type: new GraphQLNonNull(GraphQLInt)}
            },
            resolve: async function ({id}) {
                return await (util.searchSql($sql.groupQueryById, [id]))[0];
            }
        },
        groups: {
            type: new GraphQLList(Group),
            resolve: async function () {
                return await util.searchSql($sql.groupQueryAll);
            }
        },
        groupUser: {
            type:  new GraphQLList(GroupUser),
            args: {
                id: {type: new GraphQLNonNull(GraphQLInt)}
            },
            resolve: async function ({id}) {
                return await (util.searchSql($sql.groupUserQueryById, [id]))[0];
            }
        },
        groupsUsers: {
            type: new GraphQLList(GroupUser),
            resolve: async function () {
                return await util.searchSql($sql.groupUserQueryAll);
            }
        }
    }
};