import { z } from "zod";

// Departments a task can be assigned to (member roles). Null = a personal task
// that belongs to its creator.
export const TASK_DEPARTMENTS = [
  "admin",
  "doctor",
  "reception",
  "pharmacy",
  "lab",
] as const;

// Payload accepted by POST /api/tasks (full create).
export const taskInputSchema = z.object({
  title: z.string().trim().min(1, "A task subject is required.").max(200),
  assignee: z.string().trim().max(200).default("Unassigned"),
  assigneeRole: z.enum(TASK_DEPARTMENTS).nullish(),
  assigneeUserId: z.string().trim().max(120).nullish(),
  due: z.string().trim().max(120).default("No due date"),
  priority: z.enum(["high", "medium", "low"]).default("medium"),
  status: z.enum(["todo", "in_progress", "done"]).default("todo"),
  patient: z.string().trim().max(200).nullish(),
  notes: z.string().max(5000).nullish(),
});

// Payload accepted by PATCH /api/tasks/:id — any subset of fields, plus `done`
// (used by the list/detail toggle).
export const taskPatchSchema = taskInputSchema.partial().extend({
  done: z.boolean().optional(),
});

export type TaskInput = z.infer<typeof taskInputSchema>;
export type TaskPatch = z.infer<typeof taskPatchSchema>;