Added support for complete and uncomplete

src/document.ts

@@ -479,6 +479,31 @@ export class List {
     return this;
   }
 
+  /**
+   * Completes the list
+   * @returns {List} this
+   */
+  public setCompleted(complete = true): List {
+    if (complete === this.isCompleted) {
+      return this;
+    }
+
+    this.#companion.addOperation(this.data.treeId, {
+      type: complete ? "complete" : "uncomplete",
+      data: {
+        projectid: this.data.id,
+      },
+      undo_data: {
+        previous_last_modified: this.data.lastModified,
+        previous_last_modified_by: null,
+        previous_completed: this.data.completed ?? false,
+      },
+    });
+
+    this.data.completed = complete ? this.#companion.getNow() : undefined;
+    return this;
+  }
+
   /**
    * Moves this list to a different list
    *

tests/document_test.ts

@@ -156,6 +156,50 @@ Deno.test("WorkFlowy Document / Edit mirror", () => {
   });
 });
 
+Deno.test("WorkFlowy Document / Complete list", () => {
+  const document = mockDocument();
+
+  const list = document.root.items[1];
+
+  list.setCompleted().setCompleted();
+
+  assertEquals(document.root.items[1].isCompleted, true);
+
+  const ops = document.getPendingOperations()[ROOT];
+  assertEquals(ops.length, 1);
+  assertObjectMatch(ops[0], {
+    type: "complete",
+    data: {
+      projectid: list.id,
+    },
+    undo_data: {
+      previous_completed: false,
+    },
+  });
+});
+
+Deno.test("WorkFlowy Document / Uncomplete list", () => {
+  const document = mockDocument();
+
+  const list = document.root.items[2];
+
+  list.setCompleted(false).setCompleted(false);
+
+  assertEquals(document.root.items[2].isCompleted, false);
+
+  const ops = document.getPendingOperations()[ROOT];
+  assertEquals(ops.length, 1);
+  assertObjectMatch(ops[0], {
+    type: "uncomplete",
+    data: {
+      projectid: list.id,
+    },
+    undo_data: {
+      previous_completed: 199,
+    },
+  });
+});
+
 Deno.test("WorkFlowy Document / Move list", () => {
   const document = mockDocument();