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			117 lines
		
	
	
	
		
			8.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /*
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|    GoToSocial
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|    Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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| 
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|    This program is free software: you can redistribute it and/or modify
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|    it under the terms of the GNU Affero General Public License as published by
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|    the Free Software Foundation, either version 3 of the License, or
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|    (at your option) any later version.
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| 
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|    This program is distributed in the hope that it will be useful,
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|    but WITHOUT ANY WARRANTY; without even the implied warranty of
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|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|    GNU Affero General Public License for more details.
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| 
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|    You should have received a copy of the GNU Affero General Public License
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|    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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| */
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| 
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| package gtsmodel
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| 
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| import (
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| 	"time"
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| )
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| 
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| // MediaAttachment represents a user-uploaded media attachment: an image/video/audio/gif that is
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| // somewhere in storage and that can be retrieved and served by the router.
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| type MediaAttachment struct {
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| 	ID                string           `validate:"required,ulid" bun:"type:CHAR(26),pk,nullzero,notnull,unique"`                       // id of this item in the database
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| 	CreatedAt         time.Time        `validate:"-" bun:"type:timestamp,nullzero,notnull,default:current_timestamp"`                  // when was item created
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| 	UpdatedAt         time.Time        `validate:"-" bun:"type:timestamp,nullzero,notnull,default:current_timestamp"`                  // when was item last updated
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| 	StatusID          string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                        // ID of the status to which this is attached
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| 	URL               string           `validate:"required_without=RemoteURL,omitempty,url" bun:",nullzero"`                           // Where can the attachment be retrieved on *this* server
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| 	RemoteURL         string           `validate:"required_without=URL,omitempty,url" bun:",nullzero"`                                 // Where can the attachment be retrieved on a remote server (empty for local media)
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| 	Type              FileType         `validate:"oneof=Image Gif Audio Video Unknown" bun:",notnull"`                                 // Type of file (image/gif/audio/video)
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| 	FileMeta          FileMeta         `validate:"required" bun:",nullzero,notnull"`                                                   // Metadata about the file
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| 	AccountID         string           `validate:"required,ulid" bun:"type:CHAR(26),nullzero,notnull"`                                 // To which account does this attachment belong
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| 	Account           *Account         `validate:"-" bun:"rel:has-one"`                                                                // Account corresponding to accountID
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| 	Description       string           `validate:"-" bun:",nullzero"`                                                                  // Description of the attachment (for screenreaders)
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| 	ScheduledStatusID string           `validate:"omitempty,ulid" bun:"type:CHAR(26),nullzero"`                                        // To which scheduled status does this attachment belong
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| 	Blurhash          string           `validate:"required_if=Type Image,required_if=Type Gif,required_if=Type Video" bun:",nullzero"` // What is the generated blurhash of this attachment
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| 	Processing        ProcessingStatus `validate:"oneof=0 1 2 666" bun:",notnull,default:2"`                                           // What is the processing status of this attachment
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| 	File              File             `validate:"required" bun:",notnull,nullzero"`                                                   // metadata for the whole file
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| 	Thumbnail         Thumbnail        `validate:"required" bun:",notnull,nullzero"`                                                   // small image thumbnail derived from a larger image, video, or audio file.
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| 	Avatar            bool             `validate:"-" bun:",notnull,default:false"`                                                     // Is this attachment being used as an avatar?
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| 	Header            bool             `validate:"-" bun:",notnull,default:false"`                                                     // Is this attachment being used as a header?
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| }
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| 
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| // File refers to the metadata for the whole file
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| type File struct {
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| 	Path        string    `validate:"required,file" bun:",nullzero,notnull"`                             // Path of the file in storage.
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| 	ContentType string    `validate:"required" bun:",nullzero,notnull"`                                  // MIME content type of the file.
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| 	FileSize    int       `validate:"required" bun:",nullzero,notnull"`                                  // File size in bytes
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| 	UpdatedAt   time.Time `validate:"-" bun:"type:timestamp,nullzero,notnull,default:current_timestamp"` // When was the file last updated.
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| }
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| 
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| // Thumbnail refers to a small image thumbnail derived from a larger image, video, or audio file.
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| type Thumbnail struct {
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| 	Path        string    `validate:"required,file" bun:",nullzero,notnull"`                             // Path of the file in storage.
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| 	ContentType string    `validate:"required" bun:",nullzero,notnull"`                                  // MIME content type of the file.
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| 	FileSize    int       `validate:"required" bun:",nullzero,notnull"`                                  // File size in bytes
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| 	UpdatedAt   time.Time `validate:"-" bun:"type:timestamp,nullzero,notnull,default:current_timestamp"` // When was the file last updated.
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| 	URL         string    `validate:"required_without=RemoteURL,omitempty,url" bun:",nullzero"`          // What is the URL of the thumbnail on the local server
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| 	RemoteURL   string    `validate:"required_without=URL,omitempty,url" bun:",nullzero"`                // What is the remote URL of the thumbnail (empty for local media)
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| }
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| 
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| // ProcessingStatus refers to how far along in the processing stage the attachment is.
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| type ProcessingStatus int
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| 
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| // MediaAttachment processing states.
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| const (
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| 	ProcessingStatusReceived   ProcessingStatus = 0   // ProcessingStatusReceived indicates the attachment has been received and is awaiting processing. No thumbnail available yet.
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| 	ProcessingStatusProcessing ProcessingStatus = 1   // ProcessingStatusProcessing indicates the attachment is currently being processed. Thumbnail is available but full media is not.
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| 	ProcessingStatusProcessed  ProcessingStatus = 2   // ProcessingStatusProcessed indicates the attachment has been fully processed and is ready to be served.
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| 	ProcessingStatusError      ProcessingStatus = 666 // ProcessingStatusError indicates something went wrong processing the attachment and it won't be tried again--these can be deleted.
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| )
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| 
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| // FileType refers to the file type of the media attaachment.
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| type FileType string
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| 
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| // MediaAttachment file types.
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| const (
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| 	FileTypeImage   FileType = "Image"   // FileTypeImage is for jpegs and pngs
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| 	FileTypeGif     FileType = "Gif"     // FileTypeGif is for native gifs and soundless videos that have been converted to gifs
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| 	FileTypeAudio   FileType = "Audio"   // FileTypeAudio is for audio-only files (no video)
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| 	FileTypeVideo   FileType = "Video"   // FileTypeVideo is for files with audio + visual
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| 	FileTypeUnknown FileType = "Unknown" // FileTypeUnknown is for unknown file types (surprise surprise!)
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| )
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| 
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| // FileMeta describes metadata about the actual contents of the file.
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| type FileMeta struct {
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| 	Original Original `validate:"required"`
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| 	Small    Small
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| 	Focus    Focus
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| }
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| 
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| // Small can be used for a thumbnail of any media type
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| type Small struct {
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| 	Width  int     `validate:"required_with=Height Size Aspect"`  // width in pixels
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| 	Height int     `validate:"required_with=Width Size Aspect"`   // height in pixels
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| 	Size   int     `validate:"required_with=Width Height Aspect"` // size in pixels (width * height)
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| 	Aspect float64 `validate:"required_with=Widhth Height Size"`  // aspect ratio (width / height)
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| }
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| 
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| // Original can be used for original metadata for any media type
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| type Original struct {
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| 	Width  int     `validate:"required_with=Height Size Aspect"`  // width in pixels
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| 	Height int     `validate:"required_with=Width Size Aspect"`   // height in pixels
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| 	Size   int     `validate:"required_with=Width Height Aspect"` // size in pixels (width * height)
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| 	Aspect float64 `validate:"required_with=Widhth Height Size"`  // aspect ratio (width / height)
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| }
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| 
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| // Focus describes the 'center' of the image for display purposes.
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| // X and Y should each be between -1 and 1
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| type Focus struct {
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| 	X float32 `validate:"omitempty,max=1,min=-1"`
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| 	Y float32 `validate:"omitempty,max=1,min=-1"`
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| }
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