feat(core): implement message model

closes #273

crates/core/models/src/v0/embeds.rs

@@ -0,0 +1,160 @@
+use super::File;
+
+auto_derived!(
+    /// Image positioning and size
+    pub enum ImageSize {
+        /// Show large preview at the bottom of the embed
+        Large,
+        /// Show small preview to the side of the embed
+        Preview,
+    }
+
+    /// Image
+    pub struct Image {
+        /// URL to the original image
+        pub url: String,
+        /// Width of the image
+        pub width: isize,
+        /// Height of the image
+        pub height: isize,
+        /// Positioning and size
+        pub size: ImageSize,
+    }
+
+    /// Video
+    pub struct Video {
+        /// URL to the original video
+        pub url: String,
+        /// Width of the video
+        pub width: isize,
+        /// Height of the video
+        pub height: isize,
+    }
+
+    /// Type of remote Twitch content
+    pub enum TwitchType {
+        Channel,
+        Video,
+        Clip,
+    }
+
+    /// Type of remote Lightspeed.tv content
+    pub enum LightspeedType {
+        Channel,
+    }
+
+    /// Type of remote Bandcamp content
+    pub enum BandcampType {
+        Album,
+        Track,
+    }
+
+    /// Information about special remote content
+    #[serde(tag = "type")]
+    pub enum Special {
+        /// No remote content
+        None,
+        /// Content hint that this contains a GIF
+        ///
+        /// Use metadata to find video or image to play
+        GIF,
+        /// YouTube video
+        YouTube {
+            id: String,
+
+            #[serde(skip_serializing_if = "Option::is_none")]
+            timestamp: Option<String>,
+        },
+        /// Lightspeed.tv stream
+        Lightspeed {
+            content_type: LightspeedType,
+            id: String,
+        },
+        /// Twitch stream or clip
+        Twitch {
+            content_type: TwitchType,
+            id: String,
+        },
+        /// Spotify track
+        Spotify { content_type: String, id: String },
+        /// Soundcloud track
+        Soundcloud,
+        /// Bandcamp track
+        Bandcamp {
+            content_type: BandcampType,
+            id: String,
+        },
+        /// Streamable Video
+        Streamable { id: String },
+    }
+
+    /// Website metadata
+    pub struct WebsiteMetadata {
+        /// Direct URL to web page
+        #[serde(skip_serializing_if = "Option::is_none")]
+        url: Option<String>,
+        /// Original direct URL
+        #[serde(skip_serializing_if = "Option::is_none")]
+        original_url: Option<String>,
+        /// Remote content
+        #[serde(skip_serializing_if = "Option::is_none")]
+        special: Option<Special>,
+
+        /// Title of website
+        #[serde(skip_serializing_if = "Option::is_none")]
+        title: Option<String>,
+        /// Description of website
+        #[serde(skip_serializing_if = "Option::is_none")]
+        description: Option<String>,
+        /// Embedded image
+        #[serde(skip_serializing_if = "Option::is_none")]
+        image: Option<Image>,
+        /// Embedded video
+        #[serde(skip_serializing_if = "Option::is_none")]
+        video: Option<Video>,
+
+        // #[serde(skip_serializing_if = "Option::is_none")]
+        // opengraph_type: Option<String>,
+        /// Site name
+        #[serde(skip_serializing_if = "Option::is_none")]
+        site_name: Option<String>,
+        /// URL to site icon
+        #[serde(skip_serializing_if = "Option::is_none")]
+        icon_url: Option<String>,
+        /// CSS Colour
+        #[serde(skip_serializing_if = "Option::is_none")]
+        colour: Option<String>,
+    }
+
+    /// Text Embed
+    pub struct Text {
+        /// URL to icon
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub icon_url: Option<String>,
+        /// URL for title
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub url: Option<String>,
+        /// Title of text embed
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub title: Option<String>,
+        /// Description of text embed
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub description: Option<String>,
+        /// ID of uploaded autumn file
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub media: Option<File>,
+        /// CSS Colour
+        #[serde(skip_serializing_if = "Option::is_none")]
+        pub colour: Option<String>,
+    }
+
+    /// Embed
+    #[serde(tag = "type")]
+    pub enum Embed {
+        Website(WebsiteMetadata),
+        Image(Image),
+        Video(Video),
+        Text(Text),
+        None,
+    }
+);