import { apiRequestData } from "./http";

export type TodoPriority = "low" | "normal" | "high";
export type TodoStatus = "todo" | "doing" | "done" | "cancelled";
export type TodoSource = "manual" | "weekly_report";

export type TodoItem = {
  id: string;
  title: string;
  description: string | null;
  assigneeEmployeeId: string;
  createdBy: string;
  dueDate: string | null;
  priority: TodoPriority;
  status: TodoStatus;
  source: TodoSource;
  projectId: string | null;
  project: { id: string; projectNo: string; name: string } | null;
  createdAt: string | null;
  updatedAt: string | null;
  completedAt: string | null;
  assignee: { id: string; employeeNo: string; name: string } | null;
  creator: { id: string; employeeNo: string; name: string } | null;
};

export async function fetchTodos(params: {
  status?: TodoStatus;
  scope?: "mine" | "team";
  assigneeId?: string;
  q?: string;
} = {}) {
  const search = new URLSearchParams();
  if (params.status) search.set("status", params.status);
  if (params.scope) search.set("scope", params.scope);
  if (params.assigneeId) search.set("assigneeId", params.assigneeId);
  if (params.q) search.set("q", params.q);
  const suffix = search.toString() ? `?${search.toString()}` : "";
  return apiRequestData<{ items: TodoItem[] }>(`/api/todos${suffix}`);
}

export async function createTodo(payload: {
  title: string;
  description?: string | null;
  assigneeEmployeeId?: string;
  dueDate?: string | null;
  priority?: TodoPriority;
  source?: TodoSource;
  projectId?: string | null;
}) {
  return apiRequestData<{ item: TodoItem }>("/api/todos", {
    method: "POST",
    body: JSON.stringify(payload),
  });
}

export async function patchTodo(id: string, payload: Partial<{
  title: string;
  description: string | null;
  assigneeEmployeeId: string;
  dueDate: string | null;
  priority: TodoPriority;
  status: TodoStatus;
  projectId: string | null;
}>) {
  return apiRequestData<{ item: TodoItem }>(`/api/todos/${id}`, {
    method: "PATCH",
    body: JSON.stringify(payload),
  });
}

export async function completeTodo(id: string) {
  return apiRequestData<{ item: TodoItem }>(`/api/todos/${id}/complete`, {
    method: "POST",
    body: JSON.stringify({}),
  });
}

export async function cancelTodo(id: string) {
  return apiRequestData<{ item: TodoItem }>(`/api/todos/${id}/cancel`, {
    method: "POST",
    body: JSON.stringify({}),
  });
}