/*Write an Apex class that creates a custom object called "Sales Order”
	 ****** The "Sales Order” object should have the following fields:
     ****** Sales Order Number (Text, 10 characters)
     ****** Date (Date)
     ****** Account Name (Text, 50 characters)
     ****** Contact Name (Text, 50 characters)
     ****** Opportunity Name (Text, 100 characters)
     ****** Sales Order Amount (Currency)
	
*/
public class CreateCustomObject {

    /*********************************************************************************************************
    * @methodname   creatObj()
    * @description  This method is used to create a custom object Named 'Sales Order' with all the above mentioned required fields in it
    /***********************************************************************************************************/
    public static void creatObj(){
        MetadataService.MetadataPort metadataservice = new MetadataService.MetadataPort();  
        metadataservice.SessionHeader = new MetadataService.SessionHeader_element();
        metadataservice.SessionHeader.sessionId = UserInfo.getSessionId();
        List<MetadataService.Metadata> fields = new List<MetadataService.Metadata>();
        MetadataService.CustomObject customobject = new MetadataService.CustomObject();
        customobject.fullName = 'Sales_Order__c';
        customobject.label = 'Sales Order';
        customobject.pluralLabel = 'Sales Orders';
        customObject.nameField = new MetadataService.CustomField();
        customobject.nameField.type_x = 'Text';
        customobject.nameField.label = 'Order';
        customobject.deploymentStatus = 'Deployed';
        customObject.sharingModel = 'ReadWrite';
        fields.add(customobject); // Creating Custom Object
        
        fields.add(setFieldData('Sales_Order__c.Sales_Order_Number__c', 'Sales Order Number', 'Text', 10)); //Creating Sales Order Number Field (Text, 10 characters)
        fields.add(setFieldData('Sales_Order__c.Date__c', 'Date', 'Date', 0)); //Creating Date (Date) Field
        fields.add(setFieldData('Sales_Order__c.Account_Name__c', 'Account Name', 'Text', 50)); //Creating Account Name Field (Text, 50 characters)
        fields.add(setFieldData('Sales_Order__c.Contact_Name__c', 'Contact Name', 'Text', 50)); //Creating Contact Name Field(Text, 50 characters)
        fields.add(setFieldData('Sales_Order__c.Opportunity_Name__c', 'Opportunity Name', 'Text', 100)); //Creating Opportunity Name Field(Text, 100 characters)
        fields.add(setFieldDataForCurrencyField('Sales_Order__c.Sales_Order_Amount__c', 'Sales Order Amount', 'Currency', 18, 0)); //Creating Sales Order Amount Field (Currency)
        try{
			metadataservice.createMetadata(fields);   // Creating Custom Fields
        }catch(DmlException e) {
    		System.debug('The following exception has occurred: ' + e.getMessage());
		}
        
    }
    
    
    /*********************************************************************************************************
    * @methodname   setFieldData()
    * @description  This method is used to pass required parameters from base class to 
    * 				Create 'Sales Order Number', 'Date', 'Opp Name', 'Acc Name', 'Contact Name' Fields
    /***********************************************************************************************************/
    public static MetadataService.CustomField setFieldData(string fName, string label, string fType, integer fLength){
        MetadataService.CustomField fieldMeta = new MetadataService.CustomField();
        fieldMeta.fullName = fName;
        fieldMeta.label = label;
        fieldMeta.type_x = fType;
        if(fLength!=0){
           fieldMeta.length = fLength; 
        }
                
        return fieldMeta;
    }
    
    /*********************************************************************************************************
    * @methodname   setFieldDataForCurrencyField()
    * @description  This method is used to pass required parameters from base class to 
    * 				Create 'Currency' Field which needs extra parameters like precision and scale
    /***********************************************************************************************************/
    public static MetadataService.CustomField setFieldDataForCurrencyField(string fName, string label, string fCurrency, integer fprecision, integer fscale){
        MetadataService.CustomField fieldMeta = new MetadataService.CustomField();
        fieldMeta.fullName = fName;
        fieldMeta.label = label;
        fieldMeta.type_x = fCurrency;
        fieldMeta.scale = fscale;
        if(fprecision!=0){
           fieldMeta.precision = fprecision; 
        }
        return fieldMeta;
    }
}