// deno-lint-ignore-file
import { serve } from 'https://deno.land/std@0.168.0/http/server.ts'
import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'

const corsHeaders = {
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
}

const ok = (body: Record<string, unknown>) => new Response(JSON.stringify(body), {
  status: 200,
  headers: { ...corsHeaders, 'Content-Type': 'application/json' },
})

serve(async (req) => {
  if (req.method === 'OPTIONS') return new Response('ok', { headers: corsHeaders })

  try {
    const authHeader = req.headers.get('Authorization') ?? ''
    if (!authHeader) return ok({ error: 'No authorization header' })

    const callerClient = createClient(
      Deno.env.get('SUPABASE_URL') ?? '',
      Deno.env.get('SUPABASE_ANON_KEY') ?? '',
      { global: { headers: { Authorization: authHeader } } }
    )

    const { data: userData, error: userError } = await callerClient.auth.getUser()
    if (userError || !userData?.user) return ok({ error: `Auth failed: ${userError?.message ?? 'no user'}` })

    const { data: profile, error: profileError } = await callerClient
      .from('profiles').select('role').eq('id', userData.user.id).single()
    if (profileError) return ok({ error: `Profile error: ${profileError.message}` })
    if (profile?.role !== 'team') return ok({ error: 'Forbidden: team only' })

    const body = await req.json()
    const { name, email, password, company_id } = body
    if (!name || !email || !password) return ok({ error: 'name, email and password are required' })

    const admin = createClient(
      Deno.env.get('SUPABASE_URL') ?? '',
      Deno.env.get('SUPABASE_SERVICE_ROLE_KEY') ?? ''
    )

    const { data: created, error: createError } = await admin.auth.admin.createUser({
      email,
      password,
      email_confirm: true,
      user_metadata: { name, role: 'client' },
    })

    if (createError) return ok({ error: `Create user failed: ${createError.message}` })

    if (company_id && created?.user) {
      const { error: assignError } = await admin
        .from('profiles').update({ company_id }).eq('id', created.user.id)
      if (assignError) return ok({ error: `User created but company assign failed: ${assignError.message}` })
    }

    return ok({ success: true })

  } catch (err) {
    return ok({ error: `Unexpected: ${String(err)}` })
  }
})