import mongoose, { type InferSchemaType } from 'mongoose';

const notificationRuleSchema = new mongoose.Schema(
  {
    name: { type: String, required: true },
    enabled: { type: Boolean, default: true },
    priority: { type: Number, default: 50 },

    // Match scope
    packageName: { type: String }, // optional: limit to a package/channel
    keywords: { type: [String], default: [] }, // any keyword match in title/body
    pattern: { type: String }, // optional regex string

    // Action
    action: { type: String, enum: ['record', 'ignore'], default: 'record' },
    category: { type: String }, // override category when action is record
    type: { type: String, enum: ['income', 'expense'] }, // override type
    amountPattern: { type: String }, // custom regex for extracting amount

    // Telemetry
    matchCount: { type: Number, default: 0 },
    lastMatchedAt: { type: Date }
  },
  { timestamps: true }
);

export type NotificationRuleDocument = InferSchemaType<typeof notificationRuleSchema>;

export const NotificationRuleModel =
  mongoose.models.NotificationRule ?? mongoose.model('NotificationRule', notificationRuleSchema);