// 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"
	"errors"
	"fmt"
	"io"

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

// DocumentUpdate is the builder for updating Document entities.
type DocumentUpdate struct {
	config
	hooks     []Hook
	mutation  *DocumentMutation
	modifiers []func(*sql.UpdateBuilder)
}

// Where appends a list predicates to the DocumentUpdate builder.
func (_u *DocumentUpdate) Where(ps ...predicate.Document) *DocumentUpdate {
	_u.mutation.Where(ps...)
	return _u
}

// SetName sets the "name" field.
func (_u *DocumentUpdate) SetName(v string) *DocumentUpdate {
	_u.mutation.SetName(v)
	return _u
}

// SetNillableName sets the "name" field if the given value is not nil.
func (_u *DocumentUpdate) SetNillableName(v *string) *DocumentUpdate {
	if v != nil {
		_u.SetName(*v)
	}
	return _u
}

// Mutation returns the DocumentMutation object of the builder.
func (_u *DocumentUpdate) Mutation() *DocumentMutation {
	return _u.mutation
}

// Save executes the query and returns the number of nodes affected by the update operation.
func (_u *DocumentUpdate) Save(ctx context.Context) (int, error) {
	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
}

// SaveX is like Save, but panics if an error occurs.
func (_u *DocumentUpdate) SaveX(ctx context.Context) int {
	affected, err := _u.Save(ctx)
	if err != nil {
		panic(err)
	}
	return affected
}

// Exec executes the query.
func (_u *DocumentUpdate) Exec(ctx context.Context) error {
	_, err := _u.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (_u *DocumentUpdate) ExecX(ctx context.Context) {
	if err := _u.Exec(ctx); err != nil {
		panic(err)
	}
}

// Modify adds a statement modifier for attaching custom logic to the UPDATE statement.
func (_u *DocumentUpdate) Modify(modifiers ...func(u *sql.UpdateBuilder)) *DocumentUpdate {
	_u.modifiers = append(_u.modifiers, modifiers...)
	return _u
}

func (_u *DocumentUpdate) sqlSave(ctx context.Context) (_node int, err error) {
	_spec := sqlgraph.NewUpdateSpec(document.Table, document.Columns, sqlgraph.NewFieldSpec(document.FieldID, field.TypeInt))
	if ps := _u.mutation.Predicates(); len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := _u.mutation.Name(); ok {
		_spec.SetField(document.FieldName, field.TypeString, value)
	}
	if value, ok := _u.mutation.Attachment(); ok {
		_spec.SetField(document.FieldAttachment, field.TypeBytes, value)
	}
	if value, ok := _u.mutation.Payload(); ok {
		vv, err := document.ValueScanner.Payload.Value(value)
		if err != nil {
			return 0, err
		}
		_spec.SetField(document.FieldPayload, field.TypeBytes, vv)
	}
	if _u.mutation.PayloadCleared() {
		_spec.ClearField(document.FieldPayload, field.TypeBytes)
	}
	_spec.AddModifiers(_u.modifiers...)
	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{document.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return 0, err
	}
	_u.mutation.done = true
	return _node, nil
}

// DocumentUpdateOne is the builder for updating a single Document entity.
type DocumentUpdateOne struct {
	config
	fields    []string
	hooks     []Hook
	mutation  *DocumentMutation
	modifiers []func(*sql.UpdateBuilder)
}

// SetName sets the "name" field.
func (_u *DocumentUpdateOne) SetName(v string) *DocumentUpdateOne {
	_u.mutation.SetName(v)
	return _u
}

// SetNillableName sets the "name" field if the given value is not nil.
func (_u *DocumentUpdateOne) SetNillableName(v *string) *DocumentUpdateOne {
	if v != nil {
		_u.SetName(*v)
	}
	return _u
}

// SetAttachment sets the "attachment" field.
func (_u *DocumentUpdateOne) SetAttachment(v []byte) *DocumentUpdateOne {
	_u.mutation.SetAttachment(v)
	return _u
}

// SetNillableAttachment sets the "attachment" field if the given value is not nil.
func (_u *DocumentUpdateOne) SetNillableAttachment(v *[]byte) *DocumentUpdateOne {
	if v != nil {
		_u.SetAttachment(*v)
	}
	return _u
}

// SetMetadata sets the "metadata" field.
func (_u *DocumentUpdateOne) SetMetadata(v []byte) *DocumentUpdateOne {
	_u.mutation.SetMetadata(v)
	return _u
}

// SetNillableMetadata sets the "metadata" field if the given value is not nil.
func (_u *DocumentUpdateOne) SetNillableMetadata(v *[]byte) *DocumentUpdateOne {
	if v != nil {
		_u.SetMetadata(*v)
	}
	return _u
}

// ClearMetadata clears the value of the "metadata" field.
func (_u *DocumentUpdateOne) ClearMetadata() *DocumentUpdateOne {
	_u.mutation.ClearMetadata()
	return _u
}

// SetPayload sets the "payload" field.
func (_u *DocumentUpdateOne) SetPayload(v *schema.DocPayload) *DocumentUpdateOne {
	_u.mutation.SetPayload(v)
	return _u
}

// ClearPayload clears the value of the "payload" field.
func (_u *DocumentUpdateOne) ClearPayload() *DocumentUpdateOne {
	_u.mutation.ClearPayload()
	return _u
}

// SetDescription sets the "description" field.
func (_u *DocumentUpdateOne) SetDescription(v string) *DocumentUpdateOne {
	_u.mutation.SetDescription(v)
	return _u
}

// SetNillableDescription sets the "description" field if the given value is not nil.
func (_u *DocumentUpdateOne) SetNillableDescription(v *string) *DocumentUpdateOne {
	if v != nil {
		_u.SetDescription(*v)
	}
	return _u
}

// ClearDescription clears the value of the "description" field.
func (_u *DocumentUpdateOne) ClearDescription() *DocumentUpdateOne {
	_u.mutation.ClearDescription()
	return _u
}

// SetContent sets the "content" field.
func (_u *DocumentUpdateOne) SetContent(v io.Reader) *DocumentUpdateOne {
	_u.mutation.SetContent(v)
	return _u
}

// SetThumbnail sets the "thumbnail" field.
func (_u *DocumentUpdateOne) SetThumbnail(v io.Reader) *DocumentUpdateOne {
	_u.mutation.SetThumbnail(v)
	return _u
}

// SetArchive sets the "archive" field.
func (_u *DocumentUpdateOne) SetArchive(v io.Reader) *DocumentUpdateOne {
	_u.mutation.SetArchive(v)
	return _u
}

// ClearArchive clears the value of the "archive" field.
func (_u *DocumentUpdateOne) ClearArchive() *DocumentUpdateOne {
	_u.mutation.ClearArchive()
	return _u
}

// Mutation returns the DocumentMutation object of the builder.
func (_u *DocumentUpdateOne) Mutation() *DocumentMutation {
	return _u.mutation
}

// Where appends a list predicates to the DocumentUpdate builder.
func (_u *DocumentUpdateOne) Where(ps ...predicate.Document) *DocumentUpdateOne {
	_u.mutation.Where(ps...)
	return _u
}

// Select allows selecting one or more fields (columns) of the returned entity.
// The default is selecting all fields defined in the entity schema.
func (_u *DocumentUpdateOne) Select(field string, fields ...string) *DocumentUpdateOne {
	_u.fields = append([]string{field}, fields...)
	return _u
}

// Save executes the query and returns the updated Document entity.
func (_u *DocumentUpdateOne) Save(ctx context.Context) (*Document, error) {
	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
}

// SaveX is like Save, but panics if an error occurs.
func (_u *DocumentUpdateOne) SaveX(ctx context.Context) *Document {
	node, err := _u.Save(ctx)
	if err != nil {
		panic(err)
	}
	return node
}

// Exec executes the query on the entity.
func (_u *DocumentUpdateOne) Exec(ctx context.Context) error {
	_, err := _u.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (_u *DocumentUpdateOne) ExecX(ctx context.Context) {
	if err := _u.Exec(ctx); err != nil {
		panic(err)
	}
}

// Modify adds a statement modifier for attaching custom logic to the UPDATE statement.
func (_u *DocumentUpdateOne) Modify(modifiers ...func(u *sql.UpdateBuilder)) *DocumentUpdateOne {
	_u.modifiers = append(_u.modifiers, modifiers...)
	return _u
}

func (_u *DocumentUpdateOne) sqlSave(ctx context.Context) (_node *Document, err error) {
	_spec := sqlgraph.NewUpdateSpec(document.Table, document.Columns, sqlgraph.NewFieldSpec(document.FieldID, field.TypeInt))
	id, ok := _u.mutation.ID()
	if !ok {
		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Document.id" for update`)}
	}
	_spec.Node.ID.Value = id
	if fields := _u.fields; len(fields) > 0 {
		_spec.Node.Columns = make([]string, 0, len(fields))
		_spec.Node.Columns = append(_spec.Node.Columns, document.FieldID)
		for _, f := range fields {
			if !document.ValidColumn(f) {
				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
			}
			if f != document.FieldID {
				_spec.Node.Columns = append(_spec.Node.Columns, f)
			}
		}
	}
	if ps := _u.mutation.Predicates(); len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := _u.mutation.Name(); ok {
		_spec.SetField(document.FieldName, field.TypeString, value)
	}
	if value, ok := _u.mutation.Attachment(); ok {
		_spec.SetField(document.FieldAttachment, field.TypeBytes, value)
	}
	if value, ok := _u.mutation.Payload(); ok {
		vv, err := document.ValueScanner.Payload.Value(value)
		if err != nil {
			return nil, err
		}
		_spec.SetField(document.FieldPayload, field.TypeBytes, vv)
	}
	if _u.mutation.PayloadCleared() {
		_spec.ClearField(document.FieldPayload, field.TypeBytes)
	}
	_spec.AddModifiers(_u.modifiers...)
	_blobs := ent.NewBlobs(_u.mutation.blobOpeners.Document)
	if r, ok := _u.mutation.Content(); ok {
		_blobData, err := io.ReadAll(r)
		if err != nil {
			return nil, fmt.Errorf("ent: reading content: %w", err)
		}
		_blobs.Set(document.FieldContent, _blobData,
			document.NewContentKey,
			func(k string) {
				_spec.SetField("content_key", field.TypeString, k)
			},
		)
	}
	if r, ok := _u.mutation.Thumbnail(); ok {
		_blobData, err := io.ReadAll(r)
		if err != nil {
			return nil, fmt.Errorf("ent: reading thumbnail: %w", err)
		}
		_blobs.Set(document.FieldThumbnail, _blobData,
			defaultBlobKey,
			func(k string) {
				_spec.SetField("thumbnail_key", field.TypeString, k)
			},
		)
	}
	if value, ok := _u.mutation.Attachment(); ok {
		_blobs.Set(document.FieldAttachment, value,
			defaultBlobKey,
			func(k string) {
				_spec.SetField("attachment_key", field.TypeString, k)
			},
		)
	}
	if value, ok := _u.mutation.Metadata(); ok {
		_blobs.Set(document.FieldMetadata, value,
			defaultBlobKey,
			func(k string) {
				_spec.SetField("metadata_key", field.TypeString, k)
			},
		)
	}
	if _u.mutation.MetadataCleared() {
		_blobs.SetCleared(document.FieldMetadata, func() {
			_spec.ClearField("metadata_key", field.TypeString)
		})
	}
	if value, ok := _u.mutation.Payload(); ok {
		_blobDV, err := document.ValueScanner.Payload.Value(value)
		if err != nil {
			return nil, fmt.Errorf("ent: encoding payload: %w", err)
		}
		var _blobData []byte
		switch v := _blobDV.(type) {
		case []byte:
			_blobData = v
		case string:
			_blobData = []byte(v)
		default:
			return nil, fmt.Errorf("ent: encoding payload: expected []byte or string, got %T", _blobDV)
		}
		_blobs.Set(document.FieldPayload, _blobData,
			defaultBlobKey,
			func(k string) {
				_spec.SetField("payload_key", field.TypeString, k)
			},
		)
	}
	if _u.mutation.PayloadCleared() {
		_blobs.SetCleared(document.FieldPayload, func() {
			_spec.ClearField("payload_key", field.TypeString)
		})
	}
	if value, ok := _u.mutation.Description(); ok {
		_blobs.Set(document.FieldDescription, []byte(value),
			defaultBlobKey,
			func(k string) {
				_spec.SetField("description_key", field.TypeString, k)
			},
		)
	}
	if _u.mutation.DescriptionCleared() {
		_blobs.SetCleared(document.FieldDescription, func() {
			_spec.ClearField("description_key", field.TypeString)
		})
	}
	if r, ok := _u.mutation.Archive(); ok {
		_blobData, err := io.ReadAll(r)
		if err != nil {
			return nil, fmt.Errorf("ent: reading archive: %w", err)
		}
		_blobs.Set(document.FieldArchive, _blobData,
			defaultBlobKey,
			func(k string) {
				_spec.SetField("archive_key", field.TypeString, k)
			},
		)
	}
	if _u.mutation.ArchiveCleared() {
		_blobs.SetCleared(document.FieldArchive, func() {
			_spec.ClearField("archive_key", field.TypeString)
		})
	}
	_blobResult, err := _blobs.Update(ctx, &sqlgraph.BlobSpec{
		Driver: _u.driver,
		Table:  document.Table,
		Columns: map[string]string{
			document.FieldContent:     "content_key",
			document.FieldThumbnail:   "thumbnail_key",
			document.FieldAttachment:  "attachment_key",
			document.FieldMetadata:    "metadata_key",
			document.FieldPayload:     "payload_key",
			document.FieldDescription: "description_key",
			document.FieldArchive:     "archive_key",
		},
		CheckRefs: map[string]bool{
			document.FieldContent:    true,
			document.FieldThumbnail:  true,
			document.FieldAttachment: true,
		},
		Predicate: func(s *sql.Selector) {
			s.Where(sql.EQ(document.FieldID, _spec.Node.ID.Value))
		},
	})
	if err != nil {
		return nil, err
	}
	_node = &Document{config: _u.config}
	_spec.Assign = _node.assignValues
	_spec.ScanValues = _node.scanValues
	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{document.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return nil, errors.Join(err, _blobResult.Rollback(ctx))
	}
	_u.mutation.done = true
	// Resolve which replaced blobs are unreferenced now that the row moved to its new
	// keys, while the transaction is still open, and remove them once it commits.
	_blobCleanup, err := _blobResult.Cleanup(ctx)
	if err != nil {
		return nil, err
	}
	if txd, ok := _u.driver.(*txDriver); ok {
		txd.mu.Lock()
		txd.onCommit = append(txd.onCommit, func(next Committer) Committer {
			return CommitFunc(func(ctx context.Context, tx *Tx) error {
				if err := next.Commit(ctx, tx); err != nil {
					return err
				}
				return _blobCleanup(ctx)
			})
		})
		txd.onRollback = append(txd.onRollback, func(next Rollbacker) Rollbacker {
			return RollbackFunc(func(ctx context.Context, tx *Tx) error {
				err := next.Rollback(ctx, tx)
				return errors.Join(err, _blobResult.Rollback(ctx))
			})
		})
		txd.mu.Unlock()
	} else if err := _blobCleanup(ctx); err != nil {
		return nil, err
	}
	_blobReader := ent.NewBlobStore(_u.mutation.blobOpeners.Document)
	if value, ok := _u.mutation.Attachment(); ok {
		_node.Attachment = value
	}
	if value, ok := _u.mutation.Metadata(); ok {
		_node.Metadata = value
	} else if _node.metadata_key != nil && *_node.metadata_key != "" {
		data, err := _blobReader.Read(ctx, document.FieldMetadata, *_node.metadata_key)
		if err != nil {
			return nil, errors.Join(fmt.Errorf("loading metadata after update: %w", err), _blobReader.Close())
		}
		_node.Metadata = data
	}
	if value, ok := _u.mutation.Payload(); ok {
		_node.Payload = value
	}
	if value, ok := _u.mutation.Description(); ok {
		_node.Description = value
	} else if _node.description_key != nil && *_node.description_key != "" {
		data, err := _blobReader.Read(ctx, document.FieldDescription, *_node.description_key)
		if err != nil {
			return nil, errors.Join(fmt.Errorf("loading description after update: %w", err), _blobReader.Close())
		}
		_node.Description = string(data)
	}
	if err := _blobReader.Close(); err != nil {
		return nil, err
	}
	return _node, nil
}