feat: implement Supabase database schema and core authentication flow with registration and login pages

app/(dashboard)/settings/actions.ts

@@ -0,0 +1,81 @@
+'use server'
+
+import { createClient } from '@/lib/supabase/server'
+import { revalidatePath } from 'next/cache'
+
+export async function updateProfile(formData: FormData) {
+  const supabase = await createClient()
+
+  const { data: { user } } = await supabase.auth.getUser()
+  if (!user) {
+    return { error: 'Kullanıcı bulunamadı.' }
+  }
+
+  const firstName = formData.get('firstName') as string
+  const lastName = formData.get('lastName') as string
+  const avatarFile = formData.get('avatar') as File | null
+
+  let avatarUrl = undefined
+
+  // Upload avatar if a new file is provided
+  if (avatarFile && avatarFile.size > 0) {
+    const fileExt = avatarFile.name.split('.').pop()
+    const fileName = `${user.id}/${Math.random()}.${fileExt}`
+
+    const { error: uploadError, data: uploadData } = await supabase.storage
+      .from('avatars')
+      .upload(fileName, avatarFile, { upsert: true })
+
+    if (uploadError) {
+      return { error: 'Profil fotoğrafı yüklenirken hata oluştu: ' + uploadError.message }
+    }
+    
+    // Get public URL
+    const { data: { publicUrl } } = supabase.storage
+      .from('avatars')
+      .getPublicUrl(fileName)
+      
+    avatarUrl = publicUrl
+  }
+
+  // Update profile
+  const updateData: any = {
+    first_name: firstName,
+    last_name: lastName,
+  }
+  
+  if (avatarUrl) {
+    updateData.avatar_url = avatarUrl
+  }
+
+  // Upsert profile in case it doesn't exist yet
+  const { error } = await supabase
+    .from('profiles')
+    .upsert({ id: user.id, ...updateData })
+
+  if (error) {
+    return { error: 'Profil güncellenirken hata oluştu: ' + error.message }
+  }
+
+  revalidatePath('/settings')
+  return { success: true }
+}
+
+export async function updatePassword(formData: FormData) {
+  const supabase = await createClient()
+  const password = formData.get('password') as string
+  
+  if (!password || password.length < 6) {
+    return { error: 'Şifre en az 6 karakter olmalıdır.' }
+  }
+
+  const { error } = await supabase.auth.updateUser({
+    password: password
+  })
+
+  if (error) {
+    return { error: 'Şifre güncellenirken hata oluştu: ' + error.message }
+  }
+
+  return { success: true }
+}