Collections (#688)

* initial draft; unfinished

* images, fixes

* fixes

* println

* revisions

* fixes

* alternate context setup version

* rev

* partial revs

* rev

* clippy ,fmt

* fmt/clippy/prepare

* fixes

* revs

src/models/images.rs

@@ -0,0 +1,124 @@
+use super::{
+    ids::{Base62Id, ProjectId, ThreadMessageId, VersionId},
+    pats::Scopes,
+    reports::ReportId,
+    users::UserId,
+};
+use crate::database::models::image_item::Image as DBImage;
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+#[derive(Copy, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(from = "Base62Id")]
+#[serde(into = "Base62Id")]
+pub struct ImageId(pub u64);
+
+#[derive(Serialize, Deserialize)]
+pub struct Image {
+    pub id: ImageId,
+    pub url: String,
+    pub size: u64,
+    pub created: DateTime<Utc>,
+    pub owner_id: UserId,
+
+    // context it is associated with
+    #[serde(flatten)]
+    pub context: ImageContext,
+}
+
+impl From<DBImage> for Image {
+    fn from(x: DBImage) -> Self {
+        let mut context = ImageContext::from_str(&x.context, None);
+        match &mut context {
+            ImageContext::Project { project_id } => {
+                *project_id = x.project_id.map(|x| x.into());
+            }
+            ImageContext::Version { version_id } => {
+                *version_id = x.version_id.map(|x| x.into());
+            }
+            ImageContext::ThreadMessage { thread_message_id } => {
+                *thread_message_id = x.thread_message_id.map(|x| x.into());
+            }
+            ImageContext::Report { report_id } => {
+                *report_id = x.report_id.map(|x| x.into());
+            }
+            ImageContext::Unknown => {}
+        }
+
+        Image {
+            id: x.id.into(),
+            url: x.url,
+            size: x.size,
+            created: x.created,
+            owner_id: x.owner_id.into(),
+            context,
+        }
+    }
+}
+
+#[derive(Copy, Clone, PartialEq, Eq, Serialize, Deserialize, Debug)]
+#[serde(tag = "context")]
+#[serde(rename_all = "snake_case")]
+pub enum ImageContext {
+    Project {
+        project_id: Option<ProjectId>,
+    },
+    Version {
+        // version changelogs
+        version_id: Option<VersionId>,
+    },
+    ThreadMessage {
+        thread_message_id: Option<ThreadMessageId>,
+    },
+    Report {
+        report_id: Option<ReportId>,
+    },
+    Unknown,
+}
+
+impl ImageContext {
+    pub fn context_as_str(&self) -> &'static str {
+        match self {
+            ImageContext::Project { .. } => "project",
+            ImageContext::Version { .. } => "version",
+            ImageContext::ThreadMessage { .. } => "thread_message",
+            ImageContext::Report { .. } => "report",
+            ImageContext::Unknown => "unknown",
+        }
+    }
+    pub fn inner_id(&self) -> Option<u64> {
+        match self {
+            ImageContext::Project { project_id } => project_id.map(|x| x.0),
+            ImageContext::Version { version_id } => version_id.map(|x| x.0),
+            ImageContext::ThreadMessage { thread_message_id } => thread_message_id.map(|x| x.0),
+            ImageContext::Report { report_id } => report_id.map(|x| x.0),
+            ImageContext::Unknown => None,
+        }
+    }
+    pub fn relevant_scope(&self) -> Scopes {
+        match self {
+            ImageContext::Project { .. } => Scopes::PROJECT_WRITE,
+            ImageContext::Version { .. } => Scopes::VERSION_WRITE,
+            ImageContext::ThreadMessage { .. } => Scopes::THREAD_WRITE,
+            ImageContext::Report { .. } => Scopes::REPORT_WRITE,
+            ImageContext::Unknown => Scopes::NONE,
+        }
+    }
+    pub fn from_str(context: &str, id: Option<u64>) -> Self {
+        match context {
+            "project" => ImageContext::Project {
+                project_id: id.map(ProjectId),
+            },
+            "version" => ImageContext::Version {
+                version_id: id.map(VersionId),
+            },
+            "thread_message" => ImageContext::ThreadMessage {
+                thread_message_id: id.map(ThreadMessageId),
+            },
+            "report" => ImageContext::Report {
+                report_id: id.map(ReportId),
+            },
+            _ => ImageContext::Unknown,
+        }
+    }
+}