public class AttachPDF {

private final Id recordId;

public AttachPDF_Controller(ApexPages.StandardController controller) {
recordId =     controller.getId();
system.debug('inside AttachPDF');
    }
    @future(callout = true)
     public static void save(Id AccId, String acctName){
    system.debug('inside AttachPDF save');
        PageReference pdf = new PageReference('/apex/PDFPage?id='+Accid);
         pdf.setRedirect(true);
         pdf.getParameters().put('Id',AccId);
         Blob b= pdf.getContent();
        
        Attachment formAttach = new Attachment();
           
             formAttach.Name = 'test'+'.pdf';
             formAttach.body = b;
             formAttach.ContentType='application/pdf';
             formAttach.parentId =AccId;
             insert formAttach; 
              
        
    }

}

<aura:component controller="ListEmailOppCntrlr" implements="force:hasRecordId,flexipage:availableForAllPageTypes,force:lightningQuickActionWithoutHeader" access="global">
    <aura:handler name="init" value="{!this}" action="{!c.loadComponent}"/> 
    <aura:attribute name="errorMsg" type="String" description=""/>
    <aura:attribute name="shoMsg" type="boolean" default="false" description=""/>
    <aura:attribute name="shwSucesMsg" type="boolean" default="false" description=""/>
    <aura:attribute name="showLoader" type="boolean" default="false" description=""/> 
    <aura:attribute name="Case" type="Case" 
                    default="{ 'sobjectType': 'Case', 'SampleRichText__c':''}"/>
    
    <aura:attribute name="disableTemplate" type="boolean" default="false" description=""/>
    <aura:attribute name="selTempl" type="String" description=""/>
    <aura:attribute name="templates" type="EmailTemplate[]" default="[]"/>
    <aura:attribute name="addnlEmails" type="String" default="" description=""/>
    <aura:attribute name="subjTxt" type="String" default="" description=""/>
    <aura:attribute name="msgReview" type="String" default="" description=""/>
    <aura:attribute name="accIds" type="String" access="GLOBAL" default="" description=""/>
    <aura:attribute name="oppIds" type="String" access="GLOBAL" default="" description=""/>
    <aura:attribute name="accRecords" type="sObject[]" default="[]" />
    <aura:attribute name="templDetail" type="EmailTemplate" default="{}" />
    
    <div class="slds-page-header" role="banner">
        <div class="slds-grid">
            <div class="slds-col slds-has-flexi-truncate">
                <!-- SEARCH AREA -->
                <p class="slds-text-title--caps slds-line-height--reset">
                    
                    <span title="lead Standard Icon">
                        
                    </span>&nbsp;&nbsp;Send Email</p>
                <!-- / SEARCH AREA -->
            </div>
            
        </div>
    </div>
    
    
    
    <br/><br/>
    <!-- Connection 1 Section -->
    <div class="slds-grid slds-grid_vertical">
        <div class="slds-box slds-box--small slds-theme--shade slds-text-align--left">Email Message</div>
        <br/>
        <div class="slds-col">
            
            <div class="slds-form-element slds-size--1-of-1">
                <!-- <label class="slds-form-element__label" for="input-02">Recipients<span color="red"><b>*</b></span></label> -->
                
                <!--  <input type="Text" autocomplete="off" style="border-left:4px solid red;" value=""  class="slds-input" /> -->
                
                                <c:reUsableMultiSelectLookup objectAPIName="account"
                                             IconName="standard:account"
                                             lstSelectedRecords="{!v.accRecords}"
                                             label="Recipients" 
                                             />
                

            </div>
            
        </div> <br/><br/>
        
        <div class="slds-col">
            <lightning:select disabled="{!v.disableTemplate}" onchange="{!c.loadTemplate}"  name="SelectDivision" label="Select a Template:" aura:id="templateId" value="{!v.selTempl}">
                <option text="None" value=""/>
                
                <aura:iteration items="{!v.templates}" var="item">
                    <option text="{!item.Name}" value="{!item.Id}"/>
                </aura:iteration> 
            </lightning:select>
        </div> <br/><br/> 
        
        <div class="slds-col">
            <div class="slds-form-element slds-size--1-of-1">
                <label class="slds-form-element__label" for="input-02">Subject:</label>
                
                <input id="subjMatter" type="Text" autocomplete="off" value="{!v.subjTxt}"  class="slds-input" />
            </div>  
            
        </div><br/><br/>
        
        <div class="slds-col" aura:id="emailBodyDiv">   
            <div class="slds-form-element slds-size--1-of-1">
                <label class="slds-form-element__label" for="input-02">Content :</label>
                <span></span>
                <force:inputField class="richTxt" value="{!v.Opportunity.SampleRichText__c}"/>
            </div>
        </div><br/><br/>
        
        <aura:if isTrue="{!!empty(v.selTempl)}" >
            <lightning:textarea name="myTextArea" value="{!v.templDetail.Body}" 
                                label="Content:" maxlength="700" 
                                class="txtAreaCls" disabled="true" />
            <br/><br/>
        </aura:if>
        
        
    </div>    
    
    <br/>
    
    <!-- Error message area -->
    
    <br/><br/>
    <aura:if isTrue="{!v.shoMsg}" >
        <ui:message aura:id="errPanel"  title="Error" severity="error" closable="false">
            {!v.errorMsg}
        </ui:message>
        <br/><br/>
    </aura:if>
    
    <aura:if isTrue="{!v.shwSucesMsg}" >
        <ui:message aura:id="errPanel"  title="Success!" severity="confirm" closable="false">
            Email has been sent!
        </ui:message>
        <br/><br/>
    </aura:if>	
    
    <!-- Buttons and Loader section -->
    <div class="slds-align_absolute-center " style="padding:2%;">
        
        <lightning:button variant="brand" label="Send Email" onclick="{!c.sendEmailAction}" />
        
        <input type="button" value="Cancel" class="slds-button slds-button--neutral" onclick="{!c.closeDialog}"/>
        <aura:if isTrue="{!v.showLoader}">
            <div class="demo-only" style="height: 6rem;">
                <div role="status" class="slds-spinner_brand slds-spinner slds-spinner_small">
                    <span class="slds-assistive-text">Loading</span>
                    <div class="slds-spinner__dot-a"></div>
                    <div class="slds-spinner__dot-b"></div>
                </div>
            </div>
        </aura:if>  
        
    </div>     
</aura:component>

({
    
     loadComponent : function(component, event, helper) {
        helper.getSelctedAccountsOfOpportunity(component, event);
        helper.getEmailTempaltes(component, event);
        console.log(component.get("v.accIds"));
    }, 
   
    sendEmailAction : function(component, event, helper) {
        helper.sendEmails(component, event);
        
    },
    loadTemplate : function(component, event, helper) {
        helper.getTemplate(component, event);
        
    },
    closeDialog : function(component, event, helper)
    {
        helper.cancelAction(component, event);
    }
    
    
    
    
    
})

({
    getEmailTempaltes : function(component, event) {
        var action = component.get("c.getTemplates");
        //action.setParams({"divisionId":selectedDivision});
        
        action.setCallback(this,function(response){
            var loadResponse = response.getReturnValue();
            console.log('templates..!',loadResponse);
            
            if(!$A.util.isEmpty(loadResponse)){
                
                component.set('v.templates',loadResponse);
                
            }
        });
        $A.enqueueAction(action);
    },
    getSelctedAccountsOfOpportunity : function(component, event) {
        
        var accIdsofOpp = component.get("v.accIds");
        
        if(!$A.util.isEmpty(accIdsofOpp)){
            
            var action = component.get("c.getAccountsOfOpportunity");
            action.setParams({"accIds":accIdsofOpp});
            
            action.setCallback(this,function(response){
                var responseVal = response.getReturnValue();
                console.log('responseVal..** ',responseVal);
                
                if(!$A.util.isEmpty(responseVal)){
                    
                    component.set("v.accRecords",responseVal);
                    
                }
            });
            $A.enqueueAction(action);
        }
        
    },
    sendEmails : function(component, event) {
        component.set("v.shoMsg", false);
        component.set("v.showLoader", true);
        var selRec = component.find("lookupRes").get("v.lstSelectedRecords");
        var templateId = component.get("v.selTempl");
        var oppRecIds = component.get("v.oppIds");
        console.log('oppRecIds ', oppRecIds);
        console.log('sel records ', selRec);
        console.log('sel template ', templateId);
        
        //var addnlEmails = document.getElementById("addnlEmail").value;
        
        var subjMatter = document.getElementById("subjMatter").value;
        console.log('subjMatter ',subjMatter);
        var emailBody = !$A.util.isEmpty(component.get("v.Case").SampleRichText__c) ? component.get("v.Case").SampleRichText__c : '';
        console.log('emailBody ',emailBody);
        
        if(!$A.util.isEmpty(selRec) && (!$A.util.isEmpty(emailBody) || !$A.util.isEmpty(templateId)) ){
            
            var accIds = [];
            for (var i = 0; i<selRec.length; i++) {
                accIds.push(selRec[i].PersonContactId);
            }
            console.log('---accIds--- ', accIds);
            var accIdStr = !$A.util.isEmpty(accIds) ? accIds.join() : '';
            console.log('---accIdStr--- ', accIdStr);
            
            if(!$A.util.isEmpty(accIdStr) || !$A.util.isEmpty(addnlEmails)){
                
                console.log('---accIdStr--- ', accIdStr);
                console.log('--Case--', component.get("v.Case"));
                
                var action = component.get("c.sendAnEmailMsg");
                action.setParams({"templateId":templateId,
                                  "accIds":!$A.util.isEmpty(accIdStr) ? accIdStr : '',
                                  "opty":component.get("v.Case"),
                                  "subj" : !$A.util.isEmpty(subjMatter) ? subjMatter : '',
                                  "addnlEmails" : '',
                                  "oppIds" : oppRecIds });
                
                action.setCallback(this,function(response){
                    
                    var emailMsgResp = response.getReturnValue();
                    console.log('--emailMsgResp--', emailMsgResp); //isSuccess  errMsg
                    component.set("v.showLoader", false);
                    
                    if(emailMsgResp.isSuccess){
                        component.set("v.shwSucesMsg", true);
                        this.cancelAction(component, event);
                    }
                    else {
                        component.set("v.shoMsg", true);
                        component.set("v.errorMsg", emailMsgResp.errMsg);
                    }
                    
                });
                $A.enqueueAction(action);
            }
            
            
            
        }
        else {
            component.set("v.showLoader", false);
            component.set("v.shoMsg", true);
            component.set("v.errorMsg", "Please provide Recipient, Template or Email Body");
        }
        
    },
    getTemplate : function(component, event) {
        
        var templId = component.get("v.selTempl");
        component.set("v.showLoader", true);
        if(!$A.util.isEmpty(templId)){
            
            var action = component.get("c.getTemplateDetails");
            action.setParams({"templteId":templId});
            
            action.setCallback(this,function(response){
                component.set("v.showLoader", false);
                var responseVal = response.getReturnValue();
                console.log('responseVal..@getTemplate ',responseVal);
                
                if(!$A.util.isEmpty(responseVal)){
                    
                    component.set("v.templDetail",responseVal);
                    component.set("v.subjTxt",responseVal.Subject);
                    if(!$A.util.hasClass(component.find("emailBodyDiv"), "slds-hide")){
                        
                        $A.util.addClass(component.find("emailBodyDiv"), 'slds-hide'); 
                    }
                    
                }
            });
            $A.enqueueAction(action);
        }
        else {
            component.set("v.showLoader", false);
            if($A.util.hasClass(component.find("emailBodyDiv"), "slds-hide")){
                
                $A.util.removeClass(component.find("emailBodyDiv"), 'slds-hide');
            }
        }
    },
    cancelAction: function(component, event){
        var urlEvent = $A.get("e.force:navigateToURL");
        urlEvent.setParams({
            "url": '/500/o'
        });
        urlEvent.fire()
    }
    
})

public class EmailSendController {
 @AuraEnabled 
    public static void sendMailMethod(String mMail ,String mSubject ,String mbody){
    
     List<Messaging.SingleEmailMessage> mails =  new List<Messaging.SingleEmailMessage>();     
  
     // Step 1: Create a new Email
       Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
    
    // Step 2: Set list of people who should get the email
       List<String> sendTo = new List<String>();
       sendTo.add(mMail);
       mail.setToAddresses(sendTo);
    
    // Step 3: Set who the email is sent from
       mail.setReplyTo('noreply@gmail.com'); // change it with your mail address.
       mail.setSenderDisplayName('salesforce User'); 
    
    // Step 4. Set email contents - you can use variables!
      mail.setSubject(mSubject);
      mail.setHtmlBody(mbody);
    
    // Step 5. Add your email to the master list
      mails.add(mail);
    
  // Step 6: Send all emails in the master list
     Messaging.sendEmail(mails);
   }   
}

<aura:component controller="EmailSendController">
   <!--Part 1 [for attribute declare]-->  
   <aura:attribute name="email" type="string"/>
   <aura:attribute name="subject" type="string"/>
   <aura:attribute name="body" type="string"/>
   <aura:attribute name="mailStatus" type="boolean" default="false"/>
   
   <!---Part 2 [header part] -->  
   <div class="slds-page-header" role="banner">
      <h1 class="slds-page-header__title slds-m-right--small slds-align-middle slds-truncate" title="this should match">
         Quick Email Send.
      </h1>
      <div class="slds-text-color--weak">by sfdcMonkey.com</div>
   </div>
 
   <!---Part 3 [message display part] --> 
   <aura:if isTrue="{!v.mailStatus}">
      <div role="alertdialog" tabindex="-1" aria-labelledby="prompt-heading-id" aria-describedby="prompt-message-wrapper" class="slds-modal slds-fade-in-open slds-modal--prompt">
         <div class="slds-modal__container">
            <div class="slds-modal__header slds-theme--error slds-theme--alert-texture">
               <h2 class="slds-text-heading--medium" id="prompt-heading-id">Mail Status</h2>
            </div>
            <div class="slds-modal__content slds-p-around--medium">
               <div>
                  <p>Email Sent successfully to {!v.email}</p>
               </div>
            </div>
            <div class="slds-modal__footer slds-theme--default">
               <button class="slds-button slds-button--brand" onclick="{!c.closeMessage}">Close</button>
            </div>
         </div>
      </div>
      <div class="slds-backdrop slds-backdrop--open"></div>
   </aura:if>
   
   <!---Part 4 [mail fourm part]-->   
   <div class="slds-m-around--medium">
      <div class="slds-container--medium">
         <div class="slds-form--stacked">
            <div class="slds-form-element">
               <label class="slds-form-element__label" for="CC">Email</label>
               <div class="slds-form-element__control">
                  <ui:inputEmail class="slds-input" aura:id="email"  value="{!v.email}" required="true" placeholder="abc@email.com"/>
               </div>
            </div>
            <div class="slds-form-element">
               <label class="slds-form-element__label" for="CC">Subject</label>
               <div class="slds-form-element__control">
                  <ui:inputText class="slds-input" aura:id="subject"  value="{!v.subject}" placeholder="Subject"/>
               </div>
            </div>
            <div class="slds-form-element">
               <label class="slds-form-element__label" for="textareaSample2">Mail Body</label>
               <div class="slds-form-element__control">
                  <lightning:inputRichText aura:id="body" value="{!v.body}" />
               </div>
            </div>
            <div class="slds-form-element">    
               <button class="slds-button slds-button--brand" onclick="{!c.sendMail}">Send</button>
            </div>
         </div>
      </div>
   </div>
</aura:component>

({
    sendMail: function(component, event, helper) {
        // when user click on Send button 
        // First we get all 3 fields values 	
        var getEmail = component.get("v.email");
        var getSubject = component.get("v.subject");
        var getbody = component.get("v.body");
        // check if Email field is Empty or not contains @ so display a alert message 
        // otherwise call call and pass the fields value to helper method    
        if ($A.util.isEmpty(getEmail) || !getEmail.includes("@")) {
            alert('Please Enter valid Email Address');
        } else {
            helper.sendHelper(component, getEmail, getSubject, getbody);
        }
    },
 
    // when user click on the close buttton on message popup ,
    // hide the Message box by set the mailStatus attribute to false
    // and clear all values of input fields.   
    closeMessage: function(component, event, helper) {
        component.set("v.mailStatus", false);
        component.set("v.email", null);
        component.set("v.subject", null);
        component.set("v.body", null);
    },
})

({
    sendHelper: function(component, getEmail, getSubject, getbody) {
        // call the server side controller method 	
        var action = component.get("c.sendMailMethod");
        // set the 3 params to sendMailMethod method   
        action.setParams({
            'mMail': getEmail,
            'mSubject': getSubject,
            'mbody': getbody
        });
        action.setCallback(this, function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                var storeResponse = response.getReturnValue();
                // if state of server response is comes "SUCCESS",
                // display the success message box by set mailStatus attribute to true
                component.set("v.mailStatus", true);
            }
 
        });
        $A.enqueueAction(action);
    },
})

trigger Pay on Parent__c (before update) {
    Set<Id> ids = new Set<Id>();
     list<child__c> ids1= new list<child__c >();
      for(Opportunity rr : Trigger.new) {
        if (Trigger.oldmap.get(rr.id).Number__c!= Trigger.newmap.get(rr.id).Number__c  ) {
     
            for(integer i = 0; i< integer.valueOf(rr.Number__c); i++){
                child__c c= new child__c();
               
                c.name = rr.Name ;
                c.Parent__c= rr.id;
                c.Pay=rr.Pay/rr.Number__c
                
               
                ids1.add(c);
            }
     }
     }
    
    
    if(!ids1.isEmpty()){
    upsert ids1;
    }       
}