1 files changed, 32 insertions, 0 deletions
diff --git a/app/src/lib/common/assignments.ts b/app/src/lib/common/assignments.ts
new file mode 100644
index 0000000..79553cd
--- /dev/null
+++ b/app/src/lib/common/assignments.ts
@@ -0,0 +1,32 @@
+/** A row from the `cemetary_plot` table. */
+export interface CemetaryPlot {
+	id: number;
+	address: string;
+	ownerId: number;
+	//assignmentInterval: Date;
+}
+
+/** Corresponds to `assignment_state`. */
+export type AssignmentState = "AWAITING_GARDENER_NOTIFICATION"
+                            | "AWAITING_FINISH"
+                            | "AWAITING_WATERMARKING"
+                            | "AWAITING_OWNER_NOTIFICATION"
+                            | "DONE"
+			    ;
+
+/** A row from the `assignments` table. */
+export interface Assignment {
+	id: number;
+	gardenerId: number;
+	cemetaryPlotId: number;
+	date: Date;
+	state: AssignmentState;
+}
+
+
+// FIXME: We have ORM at home. A more clearly defined (OOP) model layer.
+/** Checks whether the state of the assignment allows it to be "finished". */
+export function canBeFinished(assignment: Assignment): boolean {
+	return (assignment.state === "AWAITING_GARDENER_NOTIFICATION" ||
+		assignment.state === "AWAITING_FINISH")
+}