'use strict';

const
  mongoose = require('mongoose'),
  Schema = mongoose.Schema,
  User = require('./user'),
  { UserTypes, SyncStatus } = require('../helpers/constants');

// Partner Organization Schema (e.g., SatLoc, AgIDronex)
const partnerSchema = new Schema({
  // Partner-specific fields
  partnerCode: { type: String, required: true, trim: true, unique: true }, // e.g., "SATLOC", "AGIDRONEX"
  lastSyncAt: { type: Date, required: false },
  syncStatus: { type: String, enum: [SyncStatus.ACTIVE, SyncStatus.ERROR, SyncStatus.INACTIVE], default: SyncStatus.INACTIVE }
}, { strictQuery: false });

// Partner System User Schema (Customer/Applicator accounts in partner systems)
// NOTE: Uses inherited 'parent' field from User model to link to the applicator/customer account
// The 'customer' virtual is provided for backward API compatibility
const partnerSystemUserSchema = new Schema({
  // Links to AgMission entities
  partner: { type: Schema.Types.ObjectId, ref: 'User', required: true }, // Reference to Partner organization
  // NOTE: 'parent' field inherited from User model stores the customer/applicator reference

  // Partner system credentials
  partnerUserId: { type: String, required: false }, // User ID in partner system
  partnerUsername: { type: String, required: false }, // Username in partner system
  companyId: { type: String, required: false }, // Company ID in partner system

  // Access credentials (encrypted in production)
  apiKey: { type: String, required: false },
  apiSecret: { type: String, required: false },

  // Status and metadata - isActive inherited from base User model via 'active' field
  lastLoginAt: { type: Date, required: false },
  lastSyncAt: { type: Date, required: false },
  syncStatus: { type: String, enum: [SyncStatus.ACTIVE, SyncStatus.ERROR, SyncStatus.INACTIVE], default: SyncStatus.INACTIVE },

  // Partner-specific metadata
  metadata: { type: Schema.Types.Mixed, required: false }
}, { strictQuery: false, toJSON: { virtuals: true }, toObject: { virtuals: true } });

// Virtual 'customer' field for backward API compatibility - maps to 'parent'
partnerSystemUserSchema.virtual('customer', {
  ref: 'User',
  localField: 'parent',
  foreignField: '_id',
  justOne: true
});

// Also provide a getter for non-populated access
partnerSystemUserSchema.virtual('customerId').get(function() {
  return this.parent;
});

// Create discriminator models
const Partner = User.discriminator(UserTypes.PARTNER, partnerSchema, { clone: false });
const PartnerSystemUser = User.discriminator(UserTypes.PARTNER_SYSTEM_USER, partnerSystemUserSchema, { clone: false });

module.exports = {
  Partner,
  PartnerSystemUser
};