[feature] Advertise rich text formats, support content_type field (#1370)

* Advertise rich text formats, support content_type field

* Update JSON in instance patch tests

* Replace format with content_type everywhere

* update migration to work with both pg and sqlite

* regenerate swagger docs

* update instance serialization + tests

* fix up

* learn to code tobi please, i'm begging you

---------

Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

4 files changed, 18 insertions, 14 deletions

diff --git a/internal/api/model/account.go b/internal/api/model/account.go
index 238def59d..c275c8155 100644
--- a/internal/api/model/account.go
+++ b/internal/api/model/account.go
@@ -174,8 +174,8 @@ type UpdateSource struct {
 	Sensitive *bool `form:"sensitive" json:"sensitive" xml:"sensitive"`
 	// Default language to use for authored statuses. (ISO 6391)
 	Language *string `form:"language" json:"language" xml:"language"`
-	// Default format for authored statuses (plain or markdown).
-	StatusFormat *string `form:"status_format" json:"status_format" xml:"status_format"`
+	// Default format for authored statuses (text/plain or text/markdown).
+	StatusContentType *string `form:"status_content_type" json:"status_content_type" xml:"status_content_type"`
 }
 
 // UpdateField is to be used specifically in an UpdateCredentialsRequest.
diff --git a/internal/api/model/instance.go b/internal/api/model/instance.go
index c1eec1d54..84e4bab8f 100644
--- a/internal/api/model/instance.go
+++ b/internal/api/model/instance.go
@@ -73,6 +73,10 @@ type InstanceConfigurationStatuses struct {
 	//
 	// example: 25
 	CharactersReservedPerURL int `json:"characters_reserved_per_url"`
+	// List of mime types that it's possible to use for statuses on this instance.
+	//
+	// example: ["text/plain","text/markdown"]
+	SupportedMimeTypes []string `json:"supported_mime_types,omitempty"`
 }
 
 // InstanceConfigurationMediaAttachments models instance media attachment config parameters.
diff --git a/internal/api/model/source.go b/internal/api/model/source.go
index 9e2eafa0a..4f32399cc 100644
--- a/internal/api/model/source.go
+++ b/internal/api/model/source.go
@@ -31,8 +31,8 @@ type Source struct {
 	Sensitive bool `json:"sensitive"`
 	// The default posting language for new statuses.
 	Language string `json:"language"`
-	// The default posting format for new statuses.
-	StatusFormat string `json:"status_format"`
+	// The default posting content type for new statuses.
+	StatusContentType string `json:"status_content_type"`
 	// Profile bio.
 	Note string `json:"note"`
 	// Metadata about the account.
diff --git a/internal/api/model/status.go b/internal/api/model/status.go
index 92741edfe..57f5f6c63 100644
--- a/internal/api/model/status.go
+++ b/internal/api/model/status.go
@@ -179,9 +179,9 @@ type StatusCreateRequest struct {
 	// ISO 639 language code for this status.
 	// in: formData
 	Language string `form:"language" json:"language" xml:"language"`
-	// Format to use when parsing this status.
+	// Content type to use when parsing this status.
 	// in: formData
-	Format StatusFormat `form:"format" json:"format" xml:"format"`
+	ContentType StatusContentType `form:"content_type" json:"content_type" xml:"content_type"`
 }
 
 // Visibility models the visibility of a status.
@@ -227,16 +227,16 @@ type AdvancedVisibilityFlagsForm struct {
 	Likeable *bool `form:"likeable" json:"likeable" xml:"likeable"`
 }
 
-// StatusFormat is the format in which to parse the submitted status.
-// Can be either plain or markdown. Empty will default to plain.
+// StatusContentType is the content type with which to parse the submitted status.
+// Can be either text/plain or text/markdown. Empty will default to text/plain.
 //
-// swagger:enum statusFormat
+// swagger:enum statusContentType
 // swagger:type string
-type StatusFormat string
+type StatusContentType string
 
-// Format to use when parsing submitted status into an html-formatted status
+// Content type to use when parsing submitted status into an html-formatted status
 const (
-	StatusFormatPlain    StatusFormat = "plain"
-	StatusFormatMarkdown StatusFormat = "markdown"
-	StatusFormatDefault  StatusFormat = StatusFormatPlain
+	StatusContentTypePlain    StatusContentType = "text/plain"
+	StatusContentTypeMarkdown StatusContentType = "text/markdown"
+	StatusContentTypeDefault                    = StatusContentTypePlain
 )