Add milestone creation and editing

crates/app/src/api.rs

@@ -3,14 +3,15 @@ use std::{
     collections::{BTreeSet, BinaryHeap, HashMap},
 };
 
-use gotcha_gitea::{Client, apis, models};
+use gotcha_gitea::{Client, Method, apis, models};
+use serde::Serialize;
 use tokio::task::JoinSet;
 
 use crate::{
     diff,
     domain::{
         HistoryCommit, HomeData, IssueDetails, IssueDraft, IssueEditorData, MilestoneDetails,
-        PAGE_SIZE, Page, PullDetails, RepositoryData, Server, api_date,
+        MilestoneDraft, PAGE_SIZE, Page, PullDetails, RepositoryData, Server, api_date,
     },
     presentation::compact_date,
 };
@@ -229,6 +230,80 @@ pub async fn load_milestone(
     })
 }
 
+pub async fn load_milestone_editor(
+    server: &Server,
+    owner: &str,
+    repository: &str,
+    id: i64,
+) -> Result<models::Milestone, String> {
+    let client =
+        Client::new(&server.url, Some(&server.token)).map_err(|error| error.to_string())?;
+    apis::issue_api::issue_get_milestone(
+        &client.configuration(),
+        owner,
+        repository,
+        &id.to_string(),
+    )
+    .await
+    .map_err(|error| error.to_string())
+}
+
+#[derive(Serialize)]
+struct MilestoneRequest {
+    title: String,
+    description: String,
+    due_on: Option<String>,
+}
+
+fn milestone_request(draft: MilestoneDraft) -> MilestoneRequest {
+    MilestoneRequest {
+        title: draft.title,
+        description: draft.description,
+        due_on: draft.due_date.map(api_date),
+    }
+}
+
+pub async fn save_milestone(
+    server: &Server,
+    owner: &str,
+    repository: &str,
+    id: Option<i64>,
+    draft: MilestoneDraft,
+) -> Result<models::Milestone, String> {
+    let client =
+        Client::new(&server.url, Some(&server.token)).map_err(|error| error.to_string())?;
+    let endpoint = match id {
+        Some(id) => format!(
+            "repos/{}/{}/milestones/{id}",
+            apis::urlencode(owner),
+            apis::urlencode(repository)
+        ),
+        None => format!(
+            "repos/{}/{}/milestones",
+            apis::urlencode(owner),
+            apis::urlencode(repository)
+        ),
+    };
+    let request = client
+        .request(
+            if id.is_some() {
+                Method::PATCH
+            } else {
+                Method::POST
+            },
+            &endpoint,
+        )
+        .map_err(|error| error.to_string())?
+        .json(&milestone_request(draft));
+    client
+        .execute(request)
+        .await
+        .map_err(|error| error.to_string())?
+        .json()
+        .await
+        .map_err(|error| error.to_string())
+}
+
 pub async fn load_pulls(
     server: &Server,
     status: &str,
@@ -1115,4 +1190,25 @@ mod tests {
         assert!(!comment_belongs_to_issue(&comment, 5));
         assert!(!comment_belongs_to_issue(&models::Comment::default(), 4));
     }
+
+    #[test]
+    fn milestone_requests_can_set_and_clear_due_dates() {
+        let dated = serde_json::to_value(milestone_request(MilestoneDraft {
+            title: "Version 1".into(),
+            description: "Description".into(),
+            due_date: Some(1_709_164_800),
+        }))
+        .unwrap();
+        assert_eq!(dated["title"], "Version 1");
+        assert_eq!(dated["description"], "Description");
+        assert_eq!(dated["due_on"], "2024-02-29T00:00:00Z");
+
+        let cleared = serde_json::to_value(milestone_request(MilestoneDraft {
+            title: "Version 1".into(),
+            description: String::new(),
+            due_date: None,
+        }))
+        .unwrap();
+        assert!(cleared["due_on"].is_null());
+    }
 }