// 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 comment

import (
	"context"
	"fmt"

	"entgo.io/ent"
	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/entc/integration/cascadelete/ent/predicate"
)

// Mutation represents an operation that mutates the Comment nodes in the graph.
type Mutation struct {
	op            ent.Op
	typ           string
	text          *string
	clearedFields map[string]struct{}
	post          *int
	clearedpost   bool
	predicates    []predicate.Comment
}

// NewMutation creates a new Mutation for the Comment entity.
func NewMutation(op ent.Op) *Mutation {
	return &Mutation{
		op:            op,
		typ:           "Comment",
		clearedFields: make(map[string]struct{}),
	}
}

// Predicates returns the list of predicates set on the mutation.
func (m *Mutation) Predicates() []predicate.Comment {
	return m.predicates
}

// SetText sets the "text" field.
func (m *Mutation) SetText(s string) {
	m.text = &s
}

// Text returns the value of the "text" field in the mutation.
func (m *Mutation) Text() (r string, exists bool) {
	v := m.text
	if v == nil {
		return
	}
	return *v, true
}

// ResetText resets all changes to the "text" field.
func (m *Mutation) ResetText() {
	m.text = nil
}

// SetPostID sets the "post_id" field.
func (m *Mutation) SetPostID(i int) {
	m.post = &i
}

// PostID returns the value of the "post_id" field in the mutation.
func (m *Mutation) PostID() (r int, exists bool) {
	v := m.post
	if v == nil {
		return
	}
	return *v, true
}

// ResetPostID resets all changes to the "post_id" field.
func (m *Mutation) ResetPostID() {
	m.post = nil
}

// ClearPost clears the "post" edge to the Post entity.
func (m *Mutation) ClearPost() {
	m.clearedpost = true
	m.clearedFields[FieldPostID] = struct{}{}
}

// PostCleared reports if the "post" edge to the Post entity was cleared.
func (m *Mutation) PostCleared() bool {
	return m.clearedpost
}

// PostIDs returns the "post" edge IDs in the mutation.
// Note that IDs always returns len(IDs) <= 1 for unique edges, and you should use
// PostID instead. It exists only for internal usage by the builders.
func (m *Mutation) PostIDs() (ids []int) {
	if id := m.post; id != nil {
		ids = append(ids, *id)
	}
	return
}

// ResetPost resets all changes to the "post" edge.
func (m *Mutation) ResetPost() {
	m.post = nil
	m.clearedpost = false
}

// Where appends a list predicates to the Mutation builder.
func (m *Mutation) Where(ps ...predicate.Comment) {
	m.predicates = append(m.predicates, ps...)
}

// WhereP appends storage-level predicates to the Mutation builder. Using this method,
// users can use type-assertion to append predicates that do not depend on any generated package.
func (m *Mutation) WhereP(ps ...func(*sql.Selector)) {
	p := make([]predicate.Comment, len(ps))
	for i := range ps {
		p[i] = ps[i]
	}
	m.Where(p...)
}

// Op returns the operation name.
func (m *Mutation) Op() ent.Op {
	return m.op
}

// SetOp allows setting the mutation operation.
func (m *Mutation) SetOp(op ent.Op) {
	m.op = op
}

// Type returns the node type of this mutation (Comment).
func (m *Mutation) Type() string {
	return m.typ
}

// Fields returns all fields that were changed during this mutation. Note that in
// order to get all numeric fields that were incremented/decremented, call
// AddedFields().
func (m *Mutation) Fields() []string {
	fields := make([]string, 0, 2)
	if m.text != nil {
		fields = append(fields, FieldText)
	}
	if m.post != nil {
		fields = append(fields, FieldPostID)
	}
	return fields
}

// Field returns the value of a field with the given name. The second boolean
// return value indicates that this field was not set, or was not defined in the
// schema.
func (m *Mutation) Field(name string) (ent.Value, bool) {
	switch name {
	case FieldText:
		return m.Text()
	case FieldPostID:
		return m.PostID()
	}
	return nil, false
}

// OldField returns the old value of the field from the database. An error is
// returned if the mutation operation is not UpdateOne, or the query to the
// database failed.
func (m *Mutation) OldField(ctx context.Context, name string) (ent.Value, error) {
	return nil, fmt.Errorf("unknown Comment field %s", name)
}

// SetField sets the value of a field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *Mutation) SetField(name string, value ent.Value) error {
	switch name {
	case FieldText:
		v, ok := value.(string)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetText(v)
		return nil
	case FieldPostID:
		v, ok := value.(int)
		if !ok {
			return fmt.Errorf("unexpected type %T for field %s", value, name)
		}
		m.SetPostID(v)
		return nil
	}
	return fmt.Errorf("unknown Comment field %s", name)
}

// AddedFields returns all numeric fields that were incremented/decremented during
// this mutation.
func (m *Mutation) AddedFields() []string {
	var fields []string
	return fields
}

// AddedField returns the numeric value that was incremented/decremented on a field
// with the given name. The second boolean return value indicates that this field
// was not set, or was not defined in the schema.
func (m *Mutation) AddedField(name string) (ent.Value, bool) {
	switch name {
	}
	return nil, false
}

// AddField adds the value to the field with the given name. It returns an error if
// the field is not defined in the schema, or if the type mismatched the field
// type.
func (m *Mutation) AddField(name string, value ent.Value) error {
	switch name {
	}
	return fmt.Errorf("unknown Comment numeric field %s", name)
}

// ClearedFields returns all nullable fields that were cleared during this
// mutation.
func (m *Mutation) ClearedFields() []string {
	return nil
}

// FieldCleared returns a boolean indicating if a field with the given name was
// cleared in this mutation.
func (m *Mutation) FieldCleared(name string) bool {
	_, ok := m.clearedFields[name]
	return ok
}

// ClearField clears the value of the field with the given name. It returns an
// error if the field is not defined in the schema.
func (m *Mutation) ClearField(name string) error {
	return fmt.Errorf("unknown Comment nullable field %s", name)
}

// ResetField resets all changes in the mutation for the field with the given name.
// It returns an error if the field is not defined in the schema.
func (m *Mutation) ResetField(name string) error {
	switch name {
	case FieldText:
		m.ResetText()
		return nil
	case FieldPostID:
		m.ResetPostID()
		return nil
	}
	return fmt.Errorf("unknown Comment field %s", name)
}

// AddedEdges returns all edge names that were set/added in this mutation.
func (m *Mutation) AddedEdges() []string {
	edges := make([]string, 0, 1)
	if m.post != nil {
		edges = append(edges, EdgePost)
	}
	return edges
}

// AddedIDs returns all IDs (to other nodes) that were added for the given edge
// name in this mutation.
func (m *Mutation) AddedIDs(name string) []ent.Value {
	switch name {
	case EdgePost:
		if id := m.post; id != nil {
			return []ent.Value{*id}
		}
	}
	return nil
}

// RemovedEdges returns all edge names that were removed in this mutation.
func (m *Mutation) RemovedEdges() []string {
	edges := make([]string, 0, 1)
	return edges
}

// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
// the given name in this mutation.
func (m *Mutation) RemovedIDs(name string) []ent.Value {
	return nil
}

// ClearedEdges returns all edge names that were cleared in this mutation.
func (m *Mutation) ClearedEdges() []string {
	edges := make([]string, 0, 1)
	if m.clearedpost {
		edges = append(edges, EdgePost)
	}
	return edges
}

// EdgeCleared returns a boolean which indicates if the edge with the given name
// was cleared in this mutation.
func (m *Mutation) EdgeCleared(name string) bool {
	switch name {
	case EdgePost:
		return m.clearedpost
	}
	return false
}

// ClearEdge clears the value of the edge with the given name. It returns an error
// if that edge is not defined in the schema.
func (m *Mutation) ClearEdge(name string) error {
	switch name {
	case EdgePost:
		m.ClearPost()
		return nil
	}
	return fmt.Errorf("unknown Comment unique edge %s", name)
}

// ResetEdge resets all changes to the edge with the given name in this mutation.
// It returns an error if the edge is not defined in the schema.
func (m *Mutation) ResetEdge(name string) error {
	switch name {
	case EdgePost:
		m.ResetPost()
		return nil
	}
	return fmt.Errorf("unknown Comment edge %s", name)
}