const mongoose = require("mongoose");

const userSchema = new mongoose.Schema(
  {
    username: {
      type: String,
      required: true,
      unique: true,
    },
    password: {
      type: String,
      required: true,
    },
    userId: {
      type: Number,
      unique: true,
      required: true,
    },
    points: {
      type: Number,
      default: 0,
    },
  },
  {
    timestamps: true,
  }
);

// 生成6位数的用户ID
async function generateUniqueUserId() {
  while (true) {
    const userId = Math.floor(100000 + Math.random() * 900000); // 生成6位数
    const existingUser = await mongoose.models.User.findOne({ userId });
    if (!existingUser) {
      return userId;
    }
  }
}

userSchema.pre("save", async function (next) {
  if (!this.userId) {
    this.userId = await generateUniqueUserId();
  }
  next();
});

export default mongoose.models.User || mongoose.model("User", userSchema);