import mongoose from "mongoose";
import { nanoid } from "nanoid";

const announcementSchema = new mongoose.Schema(
  {
    uniqueId: {
      type: String,
      unique: true,
    },
    sentTo: {
      type: [String],
      enum: ["PDs", "RDs", "SCs", "TMs"],
      required: true,
    },
    message: {
      type: String,
      required: true,
      maxlength: 250,
    },
  },
  { timestamps: true }
);

// Pre-save middleware to dynamically generate a uniqueId before saving
announcementSchema.pre("save", function (next) {
  if (!this.uniqueId) {
    this.uniqueId = nanoid(6); // Generate a 6-character unique ID
  }
  next();
});

export const AnnouncemntModal = mongoose.model(
  "Announcements",
  announcementSchema
);