// Copyright 2019-present Facebook Inc. All rights reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.

// Code generated by ent, DO NOT EDIT.

package ent

import (
	"context"
	"database/sql/driver"
	"fmt"
	"math"

	"entgo.io/ent/dialect"
	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/entc/integration/ent/group"
	"entgo.io/ent/entc/integration/ent/groupinfo"
	"entgo.io/ent/entc/integration/ent/predicate"
	"entgo.io/ent/schema/field"
)

// GroupInfoQuery is the builder for querying GroupInfo entities.
type GroupInfoQuery struct {
	config
	ctx             *QueryContext
	order           []groupinfo.Order
	inters          []Interceptor
	predicates      []predicate.GroupInfo
	withGroups      *GroupQuery
	modifiers       []func(*sql.Selector)
	withNamedGroups map[string]*GroupQuery
	// intermediate query (i.e. traversal path).
	sql  *sql.Selector
	path func(context.Context) (*sql.Selector, error)
}

// Where adds a new predicate for the GroupInfoQuery builder.
func (giq *GroupInfoQuery) Where(ps ...predicate.GroupInfo) *GroupInfoQuery {
	giq.predicates = append(giq.predicates, ps...)
	return giq
}

// Limit the number of records to be returned by this query.
func (giq *GroupInfoQuery) Limit(limit int) *GroupInfoQuery {
	giq.ctx.Limit = &limit
	return giq
}

// Offset to start from.
func (giq *GroupInfoQuery) Offset(offset int) *GroupInfoQuery {
	giq.ctx.Offset = &offset
	return giq
}

// Unique configures the query builder to filter duplicate records on query.
// By default, unique is set to true, and can be disabled using this method.
func (giq *GroupInfoQuery) Unique(unique bool) *GroupInfoQuery {
	giq.ctx.Unique = &unique
	return giq
}

// Order specifies how the records should be ordered.
func (giq *GroupInfoQuery) Order(o ...groupinfo.Order) *GroupInfoQuery {
	giq.order = append(giq.order, o...)
	return giq
}

// QueryGroups chains the current query on the "groups" edge.
func (giq *GroupInfoQuery) QueryGroups() *GroupQuery {
	query := (&GroupClient{config: giq.config}).Query()
	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
		if err := giq.prepareQuery(ctx); err != nil {
			return nil, err
		}
		selector := giq.sqlQuery(ctx)
		if err := selector.Err(); err != nil {
			return nil, err
		}
		step := sqlgraph.NewStep(
			sqlgraph.From(groupinfo.Table, groupinfo.FieldID, selector),
			sqlgraph.To(group.Table, group.FieldID),
			sqlgraph.Edge(sqlgraph.O2M, true, groupinfo.GroupsTable, groupinfo.GroupsColumn),
		)
		fromU = sqlgraph.SetNeighbors(giq.driver.Dialect(), step)
		return fromU, nil
	}
	return query
}

// First returns the first GroupInfo entity from the query.
// Returns a *NotFoundError when no GroupInfo was found.
func (giq *GroupInfoQuery) First(ctx context.Context) (*GroupInfo, error) {
	nodes, err := giq.Limit(1).All(setContextOp(ctx, giq.ctx, "First"))
	if err != nil {
		return nil, err
	}
	if len(nodes) == 0 {
		return nil, &NotFoundError{groupinfo.Label}
	}
	return nodes[0], nil
}

// FirstX is like First, but panics if an error occurs.
func (giq *GroupInfoQuery) FirstX(ctx context.Context) *GroupInfo {
	node, err := giq.First(ctx)
	if err != nil && !IsNotFound(err) {
		panic(err)
	}
	return node
}

// FirstID returns the first GroupInfo ID from the query.
// Returns a *NotFoundError when no GroupInfo ID was found.
func (giq *GroupInfoQuery) FirstID(ctx context.Context) (id int, err error) {
	var ids []int
	if ids, err = giq.Limit(1).IDs(setContextOp(ctx, giq.ctx, "FirstID")); err != nil {
		return
	}
	if len(ids) == 0 {
		err = &NotFoundError{groupinfo.Label}
		return
	}
	return ids[0], nil
}

// FirstIDX is like FirstID, but panics if an error occurs.
func (giq *GroupInfoQuery) FirstIDX(ctx context.Context) int {
	id, err := giq.FirstID(ctx)
	if err != nil && !IsNotFound(err) {
		panic(err)
	}
	return id
}

// Only returns a single GroupInfo entity found by the query, ensuring it only returns one.
// Returns a *NotSingularError when more than one GroupInfo entity is found.
// Returns a *NotFoundError when no GroupInfo entities are found.
func (giq *GroupInfoQuery) Only(ctx context.Context) (*GroupInfo, error) {
	nodes, err := giq.Limit(2).All(setContextOp(ctx, giq.ctx, "Only"))
	if err != nil {
		return nil, err
	}
	switch len(nodes) {
	case 1:
		return nodes[0], nil
	case 0:
		return nil, &NotFoundError{groupinfo.Label}
	default:
		return nil, &NotSingularError{groupinfo.Label}
	}
}

// OnlyX is like Only, but panics if an error occurs.
func (giq *GroupInfoQuery) OnlyX(ctx context.Context) *GroupInfo {
	node, err := giq.Only(ctx)
	if err != nil {
		panic(err)
	}
	return node
}

// OnlyID is like Only, but returns the only GroupInfo ID in the query.
// Returns a *NotSingularError when more than one GroupInfo ID is found.
// Returns a *NotFoundError when no entities are found.
func (giq *GroupInfoQuery) OnlyID(ctx context.Context) (id int, err error) {
	var ids []int
	if ids, err = giq.Limit(2).IDs(setContextOp(ctx, giq.ctx, "OnlyID")); err != nil {
		return
	}
	switch len(ids) {
	case 1:
		id = ids[0]
	case 0:
		err = &NotFoundError{groupinfo.Label}
	default:
		err = &NotSingularError{groupinfo.Label}
	}
	return
}

// OnlyIDX is like OnlyID, but panics if an error occurs.
func (giq *GroupInfoQuery) OnlyIDX(ctx context.Context) int {
	id, err := giq.OnlyID(ctx)
	if err != nil {
		panic(err)
	}
	return id
}

// All executes the query and returns a list of GroupInfos.
func (giq *GroupInfoQuery) All(ctx context.Context) ([]*GroupInfo, error) {
	ctx = setContextOp(ctx, giq.ctx, "All")
	if err := giq.prepareQuery(ctx); err != nil {
		return nil, err
	}
	qr := querierAll[[]*GroupInfo, *GroupInfoQuery]()
	return withInterceptors[[]*GroupInfo](ctx, giq, qr, giq.inters)
}

// AllX is like All, but panics if an error occurs.
func (giq *GroupInfoQuery) AllX(ctx context.Context) []*GroupInfo {
	nodes, err := giq.All(ctx)
	if err != nil {
		panic(err)
	}
	return nodes
}

// IDs executes the query and returns a list of GroupInfo IDs.
func (giq *GroupInfoQuery) IDs(ctx context.Context) (ids []int, err error) {
	if giq.ctx.Unique == nil && giq.path != nil {
		giq.Unique(true)
	}
	ctx = setContextOp(ctx, giq.ctx, "IDs")
	if err = giq.Select(groupinfo.FieldID).Scan(ctx, &ids); err != nil {
		return nil, err
	}
	return ids, nil
}

// IDsX is like IDs, but panics if an error occurs.
func (giq *GroupInfoQuery) IDsX(ctx context.Context) []int {
	ids, err := giq.IDs(ctx)
	if err != nil {
		panic(err)
	}
	return ids
}

// Count returns the count of the given query.
func (giq *GroupInfoQuery) Count(ctx context.Context) (int, error) {
	ctx = setContextOp(ctx, giq.ctx, "Count")
	if err := giq.prepareQuery(ctx); err != nil {
		return 0, err
	}
	return withInterceptors[int](ctx, giq, querierCount[*GroupInfoQuery](), giq.inters)
}

// CountX is like Count, but panics if an error occurs.
func (giq *GroupInfoQuery) CountX(ctx context.Context) int {
	count, err := giq.Count(ctx)
	if err != nil {
		panic(err)
	}
	return count
}

// Exist returns true if the query has elements in the graph.
func (giq *GroupInfoQuery) Exist(ctx context.Context) (bool, error) {
	ctx = setContextOp(ctx, giq.ctx, "Exist")
	switch _, err := giq.FirstID(ctx); {
	case IsNotFound(err):
		return false, nil
	case err != nil:
		return false, fmt.Errorf("ent: check existence: %w", err)
	default:
		return true, nil
	}
}

// ExistX is like Exist, but panics if an error occurs.
func (giq *GroupInfoQuery) ExistX(ctx context.Context) bool {
	exist, err := giq.Exist(ctx)
	if err != nil {
		panic(err)
	}
	return exist
}

// Clone returns a duplicate of the GroupInfoQuery builder, including all associated steps. It can be
// used to prepare common query builders and use them differently after the clone is made.
func (giq *GroupInfoQuery) Clone() *GroupInfoQuery {
	if giq == nil {
		return nil
	}
	return &GroupInfoQuery{
		config:     giq.config,
		ctx:        giq.ctx.Clone(),
		order:      append([]groupinfo.Order{}, giq.order...),
		inters:     append([]Interceptor{}, giq.inters...),
		predicates: append([]predicate.GroupInfo{}, giq.predicates...),
		withGroups: giq.withGroups.Clone(),
		// clone intermediate query.
		sql:  giq.sql.Clone(),
		path: giq.path,
	}
}

// WithGroups tells the query-builder to eager-load the nodes that are connected to
// the "groups" edge. The optional arguments are used to configure the query builder of the edge.
func (giq *GroupInfoQuery) WithGroups(opts ...func(*GroupQuery)) *GroupInfoQuery {
	query := (&GroupClient{config: giq.config}).Query()
	for _, opt := range opts {
		opt(query)
	}
	giq.withGroups = query
	return giq
}

// GroupBy is used to group vertices by one or more fields/columns.
// It is often used with aggregate functions, like: count, max, mean, min, sum.
//
// Example:
//
//	var v []struct {
//		Desc string `json:"desc,omitempty"`
//		Count int `json:"count,omitempty"`
//	}
//
//	client.GroupInfo.Query().
//		GroupBy(groupinfo.FieldDesc).
//		Aggregate(ent.Count()).
//		Scan(ctx, &v)
func (giq *GroupInfoQuery) GroupBy(field string, fields ...string) *GroupInfoGroupBy {
	giq.ctx.Fields = append([]string{field}, fields...)
	grbuild := &GroupInfoGroupBy{build: giq}
	grbuild.flds = &giq.ctx.Fields
	grbuild.label = groupinfo.Label
	grbuild.scan = grbuild.Scan
	return grbuild
}

// Select allows the selection one or more fields/columns for the given query,
// instead of selecting all fields in the entity.
//
// Example:
//
//	var v []struct {
//		Desc string `json:"desc,omitempty"`
//	}
//
//	client.GroupInfo.Query().
//		Select(groupinfo.FieldDesc).
//		Scan(ctx, &v)
func (giq *GroupInfoQuery) Select(fields ...string) *GroupInfoSelect {
	giq.ctx.Fields = append(giq.ctx.Fields, fields...)
	sbuild := &GroupInfoSelect{GroupInfoQuery: giq}
	sbuild.label = groupinfo.Label
	sbuild.flds, sbuild.scan = &giq.ctx.Fields, sbuild.Scan
	return sbuild
}

// Aggregate returns a GroupInfoSelect configured with the given aggregations.
func (giq *GroupInfoQuery) Aggregate(fns ...AggregateFunc) *GroupInfoSelect {
	return giq.Select().Aggregate(fns...)
}

func (giq *GroupInfoQuery) prepareQuery(ctx context.Context) error {
	for _, inter := range giq.inters {
		if inter == nil {
			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
		}
		if trv, ok := inter.(Traverser); ok {
			if err := trv.Traverse(ctx, giq); err != nil {
				return err
			}
		}
	}
	for _, f := range giq.ctx.Fields {
		if !groupinfo.ValidColumn(f) {
			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
		}
	}
	if giq.path != nil {
		prev, err := giq.path(ctx)
		if err != nil {
			return err
		}
		giq.sql = prev
	}
	return nil
}

func (giq *GroupInfoQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*GroupInfo, error) {
	var (
		nodes       = []*GroupInfo{}
		_spec       = giq.querySpec()
		loadedTypes = [1]bool{
			giq.withGroups != nil,
		}
	)
	_spec.ScanValues = func(columns []string) ([]any, error) {
		return (*GroupInfo).scanValues(nil, columns)
	}
	_spec.Assign = func(columns []string, values []any) error {
		node := &GroupInfo{config: giq.config}
		nodes = append(nodes, node)
		node.Edges.loadedTypes = loadedTypes
		return node.assignValues(columns, values)
	}
	if len(giq.modifiers) > 0 {
		_spec.Modifiers = giq.modifiers
	}
	for i := range hooks {
		hooks[i](ctx, _spec)
	}
	if err := sqlgraph.QueryNodes(ctx, giq.driver, _spec); err != nil {
		return nil, err
	}
	if len(nodes) == 0 {
		return nodes, nil
	}
	if query := giq.withGroups; query != nil {
		if err := giq.loadGroups(ctx, query, nodes,
			func(n *GroupInfo) { n.Edges.Groups = []*Group{} },
			func(n *GroupInfo, e *Group) { n.Edges.Groups = append(n.Edges.Groups, e) }); err != nil {
			return nil, err
		}
	}
	for name, query := range giq.withNamedGroups {
		if err := giq.loadGroups(ctx, query, nodes,
			func(n *GroupInfo) { n.appendNamedGroups(name) },
			func(n *GroupInfo, e *Group) { n.appendNamedGroups(name, e) }); err != nil {
			return nil, err
		}
	}
	return nodes, nil
}

func (giq *GroupInfoQuery) loadGroups(ctx context.Context, query *GroupQuery, nodes []*GroupInfo, init func(*GroupInfo), assign func(*GroupInfo, *Group)) error {
	fks := make([]driver.Value, 0, len(nodes))
	nodeids := make(map[int]*GroupInfo)
	for i := range nodes {
		fks = append(fks, nodes[i].ID)
		nodeids[nodes[i].ID] = nodes[i]
		if init != nil {
			init(nodes[i])
		}
	}
	query.withFKs = true
	query.Where(predicate.Group(func(s *sql.Selector) {
		s.Where(sql.InValues(groupinfo.GroupsColumn, fks...))
	}))
	neighbors, err := query.All(ctx)
	if err != nil {
		return err
	}
	for _, n := range neighbors {
		fk := n.group_info
		if fk == nil {
			return fmt.Errorf(`foreign-key "group_info" is nil for node %v`, n.ID)
		}
		node, ok := nodeids[*fk]
		if !ok {
			return fmt.Errorf(`unexpected foreign-key "group_info" returned %v for node %v`, *fk, n.ID)
		}
		assign(node, n)
	}
	return nil
}

func (giq *GroupInfoQuery) sqlCount(ctx context.Context) (int, error) {
	_spec := giq.querySpec()
	if len(giq.modifiers) > 0 {
		_spec.Modifiers = giq.modifiers
	}
	_spec.Node.Columns = giq.ctx.Fields
	if len(giq.ctx.Fields) > 0 {
		_spec.Unique = giq.ctx.Unique != nil && *giq.ctx.Unique
	}
	return sqlgraph.CountNodes(ctx, giq.driver, _spec)
}

func (giq *GroupInfoQuery) querySpec() *sqlgraph.QuerySpec {
	_spec := sqlgraph.NewQuerySpec(groupinfo.Table, groupinfo.Columns, sqlgraph.NewFieldSpec(groupinfo.FieldID, field.TypeInt))
	_spec.From = giq.sql
	if unique := giq.ctx.Unique; unique != nil {
		_spec.Unique = *unique
	} else if giq.path != nil {
		_spec.Unique = true
	}
	if fields := giq.ctx.Fields; len(fields) > 0 {
		_spec.Node.Columns = make([]string, 0, len(fields))
		_spec.Node.Columns = append(_spec.Node.Columns, groupinfo.FieldID)
		for i := range fields {
			if fields[i] != groupinfo.FieldID {
				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
			}
		}
	}
	if ps := giq.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if limit := giq.ctx.Limit; limit != nil {
		_spec.Limit = *limit
	}
	if offset := giq.ctx.Offset; offset != nil {
		_spec.Offset = *offset
	}
	if ps := giq.order; len(ps) > 0 {
		_spec.Order = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	return _spec
}

func (giq *GroupInfoQuery) sqlQuery(ctx context.Context) *sql.Selector {
	builder := sql.Dialect(giq.driver.Dialect())
	t1 := builder.Table(groupinfo.Table)
	columns := giq.ctx.Fields
	if len(columns) == 0 {
		columns = groupinfo.Columns
	}
	selector := builder.Select(t1.Columns(columns...)...).From(t1)
	if giq.sql != nil {
		selector = giq.sql
		selector.Select(selector.Columns(columns...)...)
	}
	if giq.ctx.Unique != nil && *giq.ctx.Unique {
		selector.Distinct()
	}
	for _, m := range giq.modifiers {
		m(selector)
	}
	for _, p := range giq.predicates {
		p(selector)
	}
	for _, p := range giq.order {
		p(selector)
	}
	if offset := giq.ctx.Offset; offset != nil {
		// limit is mandatory for offset clause. We start
		// with default value, and override it below if needed.
		selector.Offset(*offset).Limit(math.MaxInt32)
	}
	if limit := giq.ctx.Limit; limit != nil {
		selector.Limit(*limit)
	}
	return selector
}

// ForUpdate locks the selected rows against concurrent updates, and prevent them from being
// updated, deleted or "selected ... for update" by other sessions, until the transaction is
// either committed or rolled-back.
func (giq *GroupInfoQuery) ForUpdate(opts ...sql.LockOption) *GroupInfoQuery {
	if giq.driver.Dialect() == dialect.Postgres {
		giq.Unique(false)
	}
	giq.modifiers = append(giq.modifiers, func(s *sql.Selector) {
		s.ForUpdate(opts...)
	})
	return giq
}

// ForShare behaves similarly to ForUpdate, except that it acquires a shared mode lock
// on any rows that are read. Other sessions can read the rows, but cannot modify them
// until your transaction commits.
func (giq *GroupInfoQuery) ForShare(opts ...sql.LockOption) *GroupInfoQuery {
	if giq.driver.Dialect() == dialect.Postgres {
		giq.Unique(false)
	}
	giq.modifiers = append(giq.modifiers, func(s *sql.Selector) {
		s.ForShare(opts...)
	})
	return giq
}

// Modify adds a query modifier for attaching custom logic to queries.
func (giq *GroupInfoQuery) Modify(modifiers ...func(s *sql.Selector)) *GroupInfoSelect {
	giq.modifiers = append(giq.modifiers, modifiers...)
	return giq.Select()
}

// WithNamedGroups tells the query-builder to eager-load the nodes that are connected to the "groups"
// edge with the given name. The optional arguments are used to configure the query builder of the edge.
func (giq *GroupInfoQuery) WithNamedGroups(name string, opts ...func(*GroupQuery)) *GroupInfoQuery {
	query := (&GroupClient{config: giq.config}).Query()
	for _, opt := range opts {
		opt(query)
	}
	if giq.withNamedGroups == nil {
		giq.withNamedGroups = make(map[string]*GroupQuery)
	}
	giq.withNamedGroups[name] = query
	return giq
}

// GroupInfoGroupBy is the group-by builder for GroupInfo entities.
type GroupInfoGroupBy struct {
	selector
	build *GroupInfoQuery
}

// Aggregate adds the given aggregation functions to the group-by query.
func (gigb *GroupInfoGroupBy) Aggregate(fns ...AggregateFunc) *GroupInfoGroupBy {
	gigb.fns = append(gigb.fns, fns...)
	return gigb
}

// Scan applies the selector query and scans the result into the given value.
func (gigb *GroupInfoGroupBy) Scan(ctx context.Context, v any) error {
	ctx = setContextOp(ctx, gigb.build.ctx, "GroupBy")
	if err := gigb.build.prepareQuery(ctx); err != nil {
		return err
	}
	return scanWithInterceptors[*GroupInfoQuery, *GroupInfoGroupBy](ctx, gigb.build, gigb, gigb.build.inters, v)
}

func (gigb *GroupInfoGroupBy) sqlScan(ctx context.Context, root *GroupInfoQuery, v any) error {
	selector := root.sqlQuery(ctx).Select()
	aggregation := make([]string, 0, len(gigb.fns))
	for _, fn := range gigb.fns {
		aggregation = append(aggregation, fn(selector))
	}
	if len(selector.SelectedColumns()) == 0 {
		columns := make([]string, 0, len(*gigb.flds)+len(gigb.fns))
		for _, f := range *gigb.flds {
			columns = append(columns, selector.C(f))
		}
		columns = append(columns, aggregation...)
		selector.Select(columns...)
	}
	selector.GroupBy(selector.Columns(*gigb.flds...)...)
	if err := selector.Err(); err != nil {
		return err
	}
	rows := &sql.Rows{}
	query, args := selector.Query()
	if err := gigb.build.driver.Query(ctx, query, args, rows); err != nil {
		return err
	}
	defer rows.Close()
	return sql.ScanSlice(rows, v)
}

// GroupInfoSelect is the builder for selecting fields of GroupInfo entities.
type GroupInfoSelect struct {
	*GroupInfoQuery
	selector
}

// Aggregate adds the given aggregation functions to the selector query.
func (gis *GroupInfoSelect) Aggregate(fns ...AggregateFunc) *GroupInfoSelect {
	gis.fns = append(gis.fns, fns...)
	return gis
}

// Scan applies the selector query and scans the result into the given value.
func (gis *GroupInfoSelect) Scan(ctx context.Context, v any) error {
	ctx = setContextOp(ctx, gis.ctx, "Select")
	if err := gis.prepareQuery(ctx); err != nil {
		return err
	}
	return scanWithInterceptors[*GroupInfoQuery, *GroupInfoSelect](ctx, gis.GroupInfoQuery, gis, gis.inters, v)
}

func (gis *GroupInfoSelect) sqlScan(ctx context.Context, root *GroupInfoQuery, v any) error {
	selector := root.sqlQuery(ctx)
	aggregation := make([]string, 0, len(gis.fns))
	for _, fn := range gis.fns {
		aggregation = append(aggregation, fn(selector))
	}
	switch n := len(*gis.selector.flds); {
	case n == 0 && len(aggregation) > 0:
		selector.Select(aggregation...)
	case n != 0 && len(aggregation) > 0:
		selector.AppendSelect(aggregation...)
	}
	rows := &sql.Rows{}
	query, args := selector.Query()
	if err := gis.driver.Query(ctx, query, args, rows); err != nil {
		return err
	}
	defer rows.Close()
	return sql.ScanSlice(rows, v)
}

// Modify adds a query modifier for attaching custom logic to queries.
func (gis *GroupInfoSelect) Modify(modifiers ...func(s *sql.Selector)) *GroupInfoSelect {
	gis.modifiers = append(gis.modifiers, modifiers...)
	return gis
}
