const BaseFinancialRepository = require('./BaseFinancialRepository');

/**
 * Unit Monthly Fee Repository
 * 
 * Manages monthly fee settings for units.
 */
class UnitMonthlyFeeRepository extends BaseFinancialRepository {
  constructor() {
    super('pg_fn_unit_monthly_fees');
  }

  async findByUnitId(unitId, siteId) {
    return await this.findAll({ unit_id: unitId, site_id: siteId }, {
      orderBy: 'effective_from',
      orderDirection: 'desc'
    });
  }

  async findActiveFee(unitId, siteId) {
    const now = new Date().toISOString().split('T')[0];
    const fees = await this.findWhere({
      unit_id: { eq: unitId },
      site_id: { eq: siteId },
      effective_from: { lte: now }
    });
    
    // Return the most recent active fee (effective_to is NULL or in future)
    return fees.find(fee => !fee.effective_to || fee.effective_to >= now) || null;
  }

  async createMonthlyFee(feeData) {
    return await this.create({
      ...feeData,
      created_at: new Date().toISOString(),
      updated_at: new Date().toISOString()
    });
  }
}

module.exports = UnitMonthlyFeeRepository;