Apex Triggers || Lookup Field || Record type

trigger BenefitDeterminationTrigger on Benefit_Determination__c (before insert, before update) {

    // Step 1: Create a set to hold the RecordTypeIds and Employee_Application__c lookup field values (IDs)
    Set<Id> recordTypeIds = new Set<Id>();
    Set<Id> employeeAppIds = new Set<Id>();

    // Step 2: Collect the RecordTypeIds and Employee_Application__c IDs from the Benefit_Determination__c records
    for (Benefit_Determination__c bdRecord : Trigger.new) {
        // Add RecordTypeId to the set
        if (bdRecord.RecordTypeId != null) {
            recordTypeIds.add(bdRecord.RecordTypeId);
        }
        // Add Employee_Application__c lookup field value to the set
        if (bdRecord.Employee_Application__c != null) {
            employeeAppIds.add(bdRecord.Employee_Application__c);
        }
    }

    // Step 3: Query related RecordType objects using the collected RecordTypeIds
    Map<Id, RecordType> recordTypeMap = new Map<Id, RecordType>(
        [SELECT Id, DeveloperName FROM RecordType WHERE Id IN :recordTypeIds]
    );

    // Step 4: Query related Employee_Application__c records using the collected Employee_Application__c IDs
    Map<Id, Employee_Application__c> employeeAppMap = new Map<Id, Employee_Application__c>(
        [SELECT Id, Total_Child_Cost__c FROM Employee_Application__c WHERE Id IN :employeeAppIds]
    );

    // Step 5: Loop through the Benefit_Determination__c records and calculate the values
    for (Benefit_Determination__c bdRecord : Trigger.new) {
        
        if (bdRecord.Status__c == 'Active') {
        Decimal calculatedValue = 0;  // To store the result of the calculation

        // Get the related Employee_Application__c record from the map (if it exists)
        Employee_Application__c employeeApp = employeeAppMap.get(bdRecord.Employee_Application__c);
        
        // Get the RecordType from the map using the RecordTypeId
        RecordType recordType = recordTypeMap.get(bdRecord.RecordTypeId);

        // Log values for debugging
        System.debug('bdRecord.TFI_Level__c: ' + bdRecord.TFI_Level__c);
        System.debug('employeeApp.Total_Child_Cost__c: ' + employeeApp.Total_Child_Cost__c);
        System.debug('bdRecord.Biweekly_Hours__c ' + bdRecord.Biweekly_Hours__c);
        System.debug('RecordType: ' +  recordType.DeveloperName);

        // Step 6: Check if the RecordType is 'FAA' and if the Employee_Application__c record exists
        if (recordType != null && recordType.DeveloperName == 'FAA' && employeeApp != null) {
            System.debug('Inside 1st condition: recordType.DeveloperName == FAA');
            // Calculate the value based on TFI_Level__c and Total_Child_Cost__c
            if (bdRecord.TFI_Level__c == '$70K or Less') {
                calculatedValue = employeeApp.Total_Child_Cost__c * 0.70 * 4;
            } else if (bdRecord.TFI_Level__c == '$70,001 - $85K') {
                calculatedValue = employeeApp.Total_Child_Cost__c * 0.45 * 4;
            } else if (bdRecord.TFI_Level__c == '$85,001 - $100K') {
                calculatedValue = employeeApp.Total_Child_Cost__c * 0.30 * 4;
            } else {
                calculatedValue = 0;
            }
        } else {
            // Step 7: If the RecordType is not 'FAA', calculate based on Biweekly_Hours__c
            if (bdRecord.Biweekly_Hours__c > 0 && bdRecord.Biweekly_Hours__c < 80) {
                System.debug('Inside Else: 1st condition: bdRecord.Biweekly_Hours__c > 0 && bdRecord.Biweekly_Hours__c < 80');
                // Pro-rate the calculation based on Biweekly_Hours__c
                if (bdRecord.TFI_Level__c == '$70,001 - $80K') {
                    calculatedValue = bdRecord.Biweekly_Hours__c / 80 * 375.00;
                } else if (bdRecord.TFI_Level__c == '$80,001 - $90K') {
                    calculatedValue = bdRecord.Biweekly_Hours__c / 80 * 333.33;
                } else if (bdRecord.TFI_Level__c == '$70K or less' || bdRecord.TFI_Level__c == '$90K or less') {
                    calculatedValue = bdRecord.Biweekly_Hours__c / 80 * 416.66;
                } else if (bdRecord.TFI_Level__c == '$90,001 - $120K') {
                    calculatedValue = bdRecord.Biweekly_Hours__c / 80 * 391.66;
                } else if (bdRecord.TFI_Level__c == '$120,001 - $150K') {
                    calculatedValue = bdRecord.Biweekly_Hours__c / 80 * 350.00;
                } else {
                    calculatedValue = 0;
                }
            } else {
                // Fixed values based on TFI_Level__c when Biweekly_Hours__c is not between 0 and 80
                System.debug('Inside else 2nd condition: else');
                if (bdRecord.TFI_Level__c == '$70,001 - $80K') {
                    calculatedValue = 375.00;
                } else if (bdRecord.TFI_Level__c == '$80,001 - $90K') {
                    calculatedValue = 333.33;
                } else if (bdRecord.TFI_Level__c == '$70K or less' || bdRecord.TFI_Level__c == '$90K or less') {
                    calculatedValue = 416.66;
                } else if (bdRecord.TFI_Level__c == '$90,001 - $120K') {
                    calculatedValue = 391.66;
                } else if (bdRecord.TFI_Level__c == '$120,001 - $150K') {
                    calculatedValue = 350.00;
                } else {
                    calculatedValue = 0;
                }
            }
        }

        // Step 8: Log the calculated value before assigning it to the field
        System.debug('Calculated Value for Benefit_Determination__c record: ' + calculatedValue);

        // Step 9: Assign the calculated value to the Max_Final_Amount_Test__c field
        bdRecord.Max_Final_Amount_Test__c = calculatedValue;
        }
    }
}