// 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"
	"fmt"
	"io"
	"strings"

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

// Document is the model entity for the Document schema.
type Document struct {
	config `json:"-"`
	// ID of the ent.
	ID int `json:"id,omitempty"`
	// Name holds the value of the "name" field.
	Name string `json:"name,omitempty"`
	// Attachment holds the value of the "attachment" field.
	Attachment []byte `json:"attachment,omitempty"`
	// Metadata holds the value of the "metadata" field.
	Metadata []byte `json:"metadata,omitempty"`
	// Payload holds the value of the "payload" field.
	Payload *schema.DocPayload `json:"payload,omitempty"`
	// Description holds the value of the "description" field.
	Description     string `json:"description,omitempty"`
	content_key     *string
	thumbnail_key   *string
	attachment_key  *string
	metadata_key    *string
	payload_key     *string
	description_key *string
	archive_key     *string
	selectValues    sql.SelectValues
}

// scanValues returns the types for scanning values from sql.Rows.
func (*Document) scanValues(columns []string) ([]any, error) {
	values := make([]any, len(columns))
	for i := range columns {
		switch columns[i] {
		case document.FieldAttachment:
			values[i] = new([]byte)
		case document.FieldID:
			values[i] = new(sql.NullInt64)
		case document.FieldName:
			values[i] = new(sql.NullString)
		case document.FieldPayload:
			values[i] = document.ValueScanner.Payload.ScanValue()
		case document.BlobKeys[0]: // content_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[1]: // thumbnail_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[2]: // attachment_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[3]: // metadata_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[4]: // payload_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[5]: // description_key
			values[i] = new(sql.NullString)
		case document.BlobKeys[6]: // archive_key
			values[i] = new(sql.NullString)
		default:
			values[i] = new(sql.UnknownType)
		}
	}
	return values, nil
}

// assignValues assigns the values that were returned from sql.Rows (after scanning)
// to the Document fields.
func (_m *Document) assignValues(columns []string, values []any) error {
	if m, n := len(values), len(columns); m < n {
		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
	}
	for i := range columns {
		switch columns[i] {
		case document.FieldID:
			value, ok := values[i].(*sql.NullInt64)
			if !ok {
				return fmt.Errorf("unexpected type %T for field id", value)
			}
			_m.ID = int(value.Int64)
		case document.FieldName:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field name", values[i])
			} else if value.Valid {
				_m.Name = value.String
			}
		case document.FieldAttachment:
			if value, ok := values[i].(*[]byte); !ok {
				return fmt.Errorf("unexpected type %T for field attachment", values[i])
			} else if value != nil {
				_m.Attachment = *value
			}
		case document.FieldPayload:
			if value, err := document.ValueScanner.Payload.FromValue(values[i]); err != nil {
				return err
			} else {
				_m.Payload = value
			}
		case document.BlobKeys[0]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field content_key", values[i])
			} else if value.Valid {
				_m.content_key = &value.String
			}
		case document.BlobKeys[1]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field thumbnail_key", values[i])
			} else if value.Valid {
				_m.thumbnail_key = &value.String
			}
		case document.BlobKeys[2]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field attachment_key", values[i])
			} else if value.Valid {
				_m.attachment_key = &value.String
			}
		case document.BlobKeys[3]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field metadata_key", values[i])
			} else if value.Valid {
				_m.metadata_key = &value.String
			}
		case document.BlobKeys[4]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field payload_key", values[i])
			} else if value.Valid {
				_m.payload_key = &value.String
			}
		case document.BlobKeys[5]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field description_key", values[i])
			} else if value.Valid {
				_m.description_key = &value.String
			}
		case document.BlobKeys[6]:
			if value, ok := values[i].(*sql.NullString); !ok {
				return fmt.Errorf("unexpected type %T for field archive_key", values[i])
			} else if value.Valid {
				_m.archive_key = &value.String
			}
		default:
			_m.selectValues.Set(columns[i], values[i])
		}
	}
	return nil
}

// Value returns the ent.Value that was dynamically selected and assigned to the Document.
// This includes values selected through modifiers, order, etc.
func (_m *Document) Value(name string) (ent.Value, error) {
	return _m.selectValues.Get(name)
}

// ContentReader opens a reader for the "content" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) ContentReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.content_key == nil || *_m.content_key == "" {
		return nil, fmt.Errorf("ent: Document.content_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldContent)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.content_key)
}

// ThumbnailReader opens a reader for the "thumbnail" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) ThumbnailReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.thumbnail_key == nil || *_m.thumbnail_key == "" {
		return nil, fmt.Errorf("ent: Document.thumbnail_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldThumbnail)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.thumbnail_key)
}

// AttachmentReader opens a reader for the "attachment" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) AttachmentReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.attachment_key == nil || *_m.attachment_key == "" {
		return nil, fmt.Errorf("ent: Document.attachment_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldAttachment)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.attachment_key)
}

// MetadataReader opens a reader for the "metadata" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) MetadataReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.metadata_key == nil || *_m.metadata_key == "" {
		return nil, fmt.Errorf("ent: Document.metadata_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldMetadata)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.metadata_key)
}

// PayloadReader opens a reader for the "payload" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) PayloadReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.payload_key == nil || *_m.payload_key == "" {
		return nil, fmt.Errorf("ent: Document.payload_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldPayload)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.payload_key)
}

// DescriptionReader opens a reader for the "description" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) DescriptionReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.description_key == nil || *_m.description_key == "" {
		return nil, fmt.Errorf("ent: Document.description_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldDescription)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.description_key)
}

// ArchiveReader opens a reader for the "archive" field from blob storage.
// The caller must close the returned reader when done.
func (_m *Document) ArchiveReader(ctx context.Context) (io.ReadCloser, error) {
	if _m.archive_key == nil || *_m.archive_key == "" {
		return nil, fmt.Errorf("ent: Document.archive_key is nil or empty")
	}
	if _m.blobOpeners.Document == nil {
		return nil, fmt.Errorf("ent: blob storage not configured (missing WithBlobOpeners)")
	}
	b, err := _m.blobOpeners.Document(ctx, document.FieldArchive)
	if err != nil {
		return nil, err
	}
	return ent.BlobReader(ctx, b, *_m.archive_key)
}

// Update returns a builder for updating this Document.
// Note that you need to call Document.Unwrap() before calling this method if this Document
// was returned from a transaction, and the transaction was committed or rolled back.
func (_m *Document) Update() *DocumentUpdateOne {
	return NewDocumentClient(_m.config).UpdateOne(_m)
}

// Unwrap unwraps the Document entity that was returned from a transaction after it was closed,
// so that all future queries will be executed through the driver which created the transaction.
func (_m *Document) Unwrap() *Document {
	_tx, ok := _m.config.driver.(*txDriver)
	if !ok {
		panic("ent: Document is not a transactional entity")
	}
	_m.config.driver = _tx.drv
	return _m
}

// String implements the fmt.Stringer.
func (_m *Document) String() string {
	var builder strings.Builder
	builder.WriteString("Document(")
	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
	builder.WriteString("name=")
	builder.WriteString(_m.Name)
	builder.WriteString(", ")
	builder.WriteString("attachment=")
	builder.WriteString(fmt.Sprintf("%v", _m.Attachment))
	builder.WriteString(", ")
	builder.WriteString("metadata=")
	builder.WriteString(fmt.Sprintf("%v", _m.Metadata))
	builder.WriteString(", ")
	builder.WriteString("payload=")
	builder.WriteString(fmt.Sprintf("%v", _m.Payload))
	builder.WriteString(", ")
	builder.WriteString("description=")
	builder.WriteString(fmt.Sprintf("%v", _m.Description))
	builder.WriteByte(')')
	return builder.String()
}

// Documents is a parsable slice of Document.
type Documents []*Document