const STORAGE_KEY = "dutyTodos";

export const loadDutyTodos = () => {
  try {
    const raw = uni.getStorageSync(STORAGE_KEY);
    const list = typeof raw === "string" ? JSON.parse(raw) : raw;
    if (!Array.isArray(list)) return [];
    return list
      .map((item) => ({
        id: String(item?.id || ""),
        text: String(item?.text || "").trim(),
        done: Boolean(item?.done),
      }))
      .filter((item) => item.id && item.text);
  } catch (error) {
    console.log("读取待办事项失败", error);
    return [];
  }
};

export const saveDutyTodos = (list) => {
  const next = Array.isArray(list) ? list : [];
  uni.setStorageSync(STORAGE_KEY, JSON.stringify(next));
  return next;
};

export const createDutyTodo = (text) => ({
  id: `${Date.now()}-${Math.random().toString(16).slice(2, 8)}`,
  text: String(text || "").trim(),
  done: false,
});