import { createClient, SupabaseClient } from '@supabase/supabase-js'

// Environment variables
const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL!
const supabaseAnonKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!

// Client-side Supabase client
export const supabase: SupabaseClient = createClient(supabaseUrl, supabaseAnonKey, {
  auth: {
    autoRefreshToken: true,
    persistSession: true,
    detectSessionInUrl: true
  }
})

// Server-side Supabase client (for use in API routes)
export const createServerSupabaseClient = () => {
  const serviceRoleKey = process.env.SUPABASE_SERVICE_ROLE_KEY
  if (!serviceRoleKey) {
    throw new Error('SUPABASE_SERVICE_ROLE_KEY is not set')
  }
  
  return createClient(supabaseUrl, serviceRoleKey, {
    auth: {
      autoRefreshToken: false,
      persistSession: false
    }
  })
}

// Auth helpers
export const signInWithGoogle = async () => {
  const { data, error } = await supabase.auth.signInWithOAuth({
    provider: 'google',
    options: {
      redirectTo: `${window.location.origin}/auth/callback`
    }
  })
  return { data, error }
}

export const signInWithGitHub = async () => {
  const { data, error } = await supabase.auth.signInWithOAuth({
    provider: 'github',
    options: {
      redirectTo: `${window.location.origin}/auth/callback`
    }
  })
  return { data, error }
}



export const getCurrentUser = async () => {
  const { data: { user }, error } = await supabase.auth.getUser()
  return { user, error }
}

export const getSession = async () => {
  const { data: { session }, error } = await supabase.auth.getSession()
  return { session, error }
}