feat(support): Enhance ticket reply system with user and admin interactions

- Add support for user and admin replies in ticket detail view
- Implement dynamic styling for user and admin reply messages
- Update ticket reply API to fetch and display user and admin profiles
- Add new API route for submitting user ticket replies
- Improve reply display with author details, timestamps, and badges
- Enhance ticket detail page to handle mixed user and admin reply scenarios
- Add documentation for support ticket system

Author: akshay0611

app/admin/support/[id]/page.tsx

@@ -24,7 +24,8 @@ import Link from 'next/link'
 interface TicketReply {
   id: string
   ticket_id: string
-  admin_id: string
+  admin_id?: string
+  user_id?: string
   message: string
   created_at: string
   updated_at: string
@@ -35,6 +36,13 @@ interface TicketReply {
     last_name?: string
     avatar_url?: string
   }
+  user?: {
+    id: string
+    email: string
+    first_name?: string
+    last_name?: string
+    avatar_url?: string
+  }
 }
 
 interface SupportTicket {
@@ -265,38 +273,49 @@ export default function TicketDetailPage() {
                 </CardDescription>
               </CardHeader>
               <CardContent className="space-y-4">
-                {ticket.replies.map((reply, index) => (
-                  <div 
-                    key={reply.id}
-                    className="border-l-4 border-purple-500/30 bg-purple-500/5 rounded-r-lg p-4 space-y-2"
-                  >
-                    <div className="flex items-center justify-between">
-                      <div className="flex items-center gap-2">
-                        <div className="h-8 w-8 rounded-full bg-gradient-to-br from-purple-500 to-blue-600 flex items-center justify-center text-white text-sm font-semibold">
-                          {reply.admin?.first_name?.[0] || reply.admin?.email[0].toUpperCase() || 'A'}
-                        </div>
-                        <div>
-                          <p className="text-sm font-medium">
-                            {reply.admin?.first_name && reply.admin?.last_name
-                              ? `${reply.admin.first_name} ${reply.admin.last_name}`
-                              : reply.admin?.email || 'Admin'}
-                          </p>
-                          <p className="text-xs text-muted-foreground">
-                            {new Date(reply.created_at).toLocaleString()}
-                          </p>
+                {ticket.replies.map((reply, index) => {
+                  const isAdminReply = !!reply.admin_id
+                  const author = isAdminReply ? reply.admin : reply.user
+                  const authorName = author?.first_name && author?.last_name
+                    ? `${author.first_name} ${author.last_name}`
+                    : author?.email || (isAdminReply ? 'Admin' : 'User')
+                  const authorInitial = author?.first_name?.[0] || author?.email?.[0]?.toUpperCase() || (isAdminReply ? 'A' : 'U')
+                  const bgGradient = isAdminReply 
+                    ? 'from-purple-500 to-blue-600' 
+                    : 'from-blue-500 to-green-600'
+                  
+                  return (
+                    <div 
+                      key={reply.id}
+                      className={`border-l-4 ${isAdminReply ? 'border-purple-500/30 bg-purple-500/5' : 'border-blue-500/30 bg-blue-500/5'} rounded-r-lg p-4 space-y-2`}
+                    >
+                      <div className="flex items-center justify-between">
+                        <div className="flex items-center gap-2">
+                          <div className={`h-8 w-8 rounded-full bg-gradient-to-br ${bgGradient} flex items-center justify-center text-white text-sm font-semibold`}>
+                            {authorInitial}
+                          </div>
+                          <div>
+                            <p className="text-sm font-medium">
+                              {authorName}
+                              {!isAdminReply && <span className="text-xs text-muted-foreground ml-2">(User)</span>}
+                            </p>
+                            <p className="text-xs text-muted-foreground">
+                              {new Date(reply.created_at).toLocaleString()}
+                            </p>
+                          </div>
                         </div>
+                        <Badge variant="outline" className="text-xs">
+                          Reply #{index + 1}
+                        </Badge>
+                      </div>
+                      <div className="pl-10">
+                        <p className="text-sm text-foreground whitespace-pre-wrap">
+                          {reply.message}
+                        </p>
                       </div>
-                      <Badge variant="outline" className="text-xs">
-                        Reply #{index + 1}
-                      </Badge>
-                    </div>
-                    <div className="pl-10">
-                      <p className="text-sm text-foreground whitespace-pre-wrap">
-                        {reply.message}
-                      </p>
                     </div>
-                  </div>
-                ))}
+                  )
+                })}
               </CardContent>
             </Card>
           )}

app/api/admin/support/tickets/[id]/route.ts

@@ -55,24 +55,28 @@ export async function GET(
       .eq('ticket_id', id)
       .order('created_at', { ascending: true })
 
-    // Get admin profiles for replies
-    const adminIds = [...new Set(replies?.map(r => r.admin_id) || [])]
-    const { data: adminProfiles } = await supabase
+    // Get admin and user profiles for replies
+    const adminIds = [...new Set(replies?.map(r => r.admin_id).filter(id => id) || [])]
+    const userIds = [...new Set(replies?.map(r => r.user_id).filter(id => id) || [])]
+    const allProfileIds = [...adminIds, ...userIds]
+    
+    const { data: profiles } = await supabase
       .from('profiles')
       .select('id, email, first_name, last_name, avatar_url')
-      .in('id', adminIds)
+      .in('id', allProfileIds)
 
-    // Map admin data to replies
-    const repliesWithAdmins = replies?.map(reply => ({
+    // Map admin and user data to replies
+    const repliesWithAuthors = replies?.map(reply => ({
       ...reply,
-      admin: adminProfiles?.find(p => p.id === reply.admin_id) || null
+      admin: reply.admin_id ? profiles?.find(p => p.id === reply.admin_id) || null : null,
+      user: reply.user_id ? profiles?.find(p => p.id === reply.user_id) || null : null
     })) || []
 
     // Combine ticket with user data and replies
     const ticketWithUser = {
       ...ticket,
       user: userProfile || null,
-      replies: repliesWithAdmins
+      replies: repliesWithAuthors
     }
 
     return NextResponse.json({ ticket: ticketWithUser })

app/api/support/tickets/[id]/reply/route.ts

@@ -0,0 +1,136 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { createClient } from '@/lib/supabase/server'
+import { sendEmail, getAdminReplyEmail, getSupportTeamNotificationEmail } from '@/lib/email/support-emails'
+
+export async function POST(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params
+  
+  try {
+    const supabase = await createClient()
+    
+    const { data: { user }, error: authError } = await supabase.auth.getUser()
+    
+    if (authError || !user) {
+      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+    }
+
+    const { data: profile } = await supabase
+      .from('profiles')
+      .select('is_admin, first_name, last_name, email')
+      .eq('id', user.id)
+      .single()
+
+    if (!profile) {
+      return NextResponse.json({ error: 'Profile not found' }, { status: 404 })
+    }
+
+    const { message } = await request.json()
+
+    if (!message || !message.trim()) {
+      return NextResponse.json({ error: 'Message is required' }, { status: 400 })
+    }
+
+    const { data: ticket, error: ticketError } = await supabase
+      .from('support_tickets')
+      .select('*')
+      .eq('id', id)
+      .single()
+
+    if (ticketError || !ticket) {
+      return NextResponse.json({ error: 'Ticket not found' }, { status: 404 })
+    }
+
+    if (profile.is_admin) {
+      // Admin reply logic
+      const { data: userProfile } = await supabase
+        .from('profiles')
+        .select('email, first_name')
+        .eq('id', ticket.user_id)
+        .single()
+
+      if (!userProfile?.email) {
+        return NextResponse.json({ error: 'User email not found' }, { status: 400 })
+      }
+
+      const userName = userProfile.first_name || 'User'
+      const adminName = `${profile.first_name || ''} ${profile.last_name || ''}`.trim() || 'Support Team'
+      
+      const { subject, html } = getAdminReplyEmail({
+        userName,
+        adminName,
+        ticketId: ticket.id,
+        ticketSubject: ticket.subject,
+        replyMessage: message
+      })
+
+      await sendEmail({
+        to: userProfile.email,
+        subject,
+        html,
+      })
+
+      const { data: reply, error: replyError } = await supabase
+        .from('support_ticket_replies')
+        .insert({
+          ticket_id: ticket.id,
+          admin_id: user.id,
+          message: message.trim()
+        })
+        .select()
+        .single()
+
+      if (replyError) {
+        console.error('Error saving admin reply:', replyError)
+        return NextResponse.json({ error: 'Failed to save reply' }, { status: 500 })
+      }
+
+      return NextResponse.json({ success: true, reply })
+
+    } else {
+      // User reply logic
+      if (ticket.user_id !== user.id) {
+        return NextResponse.json({ error: 'Forbidden' }, { status: 403 })
+      }
+
+      const supportEmail = process.env.SUPPORT_EMAIL
+      if (supportEmail) {
+        const { subject, html } = getSupportTeamNotificationEmail({
+          ticketId: ticket.id,
+          ticketType: ticket.type,
+          subject: `New reply on: ${ticket.subject}`,
+          message,
+          userEmail: profile.email,
+          userName: profile.first_name || 'User',
+        })
+        await sendEmail({
+          to: supportEmail,
+          subject,
+          html,
+        })
+      }
+
+      const { data: reply, error: replyError } = await supabase
+        .from('support_ticket_replies')
+        .insert({
+          ticket_id: ticket.id,
+          user_id: user.id,
+          message: message.trim()
+        })
+        .select()
+        .single()
+
+      if (replyError) {
+        console.error('Error saving user reply:', replyError)
+        return NextResponse.json({ error: 'Failed to save reply' }, { status: 500 })
+      }
+
+      return NextResponse.json({ success: true, reply })
+    }
+  } catch (error) {
+    console.error('Error in POST ticket reply:', error)
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 })
+  }
+}

app/api/support/tickets/[id]/route.ts

@@ -32,24 +32,27 @@ export async function GET(
 
     const { data: replies } = await supabase
       .from('support_ticket_replies')
-      .select('id, admin_id, message, created_at')
+      .select('id, admin_id, user_id, message, created_at')
       .eq('ticket_id', id)
       .order('created_at', { ascending: true })
 
-    const adminIds = [...new Set(replies?.map(r => r.admin_id) || [])]
-    const { data: adminProfiles } = await supabase
+    const adminIds = [...new Set(replies?.map(r => r.admin_id).filter(id => id) || [])]
+    const userIds = [...new Set(replies?.map(r => r.user_id).filter(id => id) || [])]
+    
+    const { data: profiles } = await supabase
       .from('profiles')
       .select('id, first_name, last_name, avatar_url')
-      .in('id', adminIds)
+      .in('id', [...adminIds, ...userIds])
 
-    const repliesWithAdmins = replies?.map(reply => ({
+    const repliesWithAuthors = replies?.map(reply => ({
       ...reply,
-      admin: adminProfiles?.find(p => p.id === reply.admin_id) || null
+      admin: profiles?.find(p => p.id === reply.admin_id) || null,
+      user: profiles?.find(p => p.id === reply.user_id) || null
     })) || []
 
     const ticketWithReplies = {
       ...ticket,
-      replies: repliesWithAdmins
+      replies: repliesWithAuthors
     }
 
     return NextResponse.json({ ticket: ticketWithReplies })