import { defineEventHandler, parseCookies, setCookie, getCookie } from 'h3'
import { serverSupabaseUser } from "#supabase/server";
import AuthService from '~/lib/services/auth.service';

import { User } from '@supabase/supabase-js';
import { FullDBUser } from "~~/lib/services/service.types";

// Explicitly type our context by 'Merging' our custom types with the H3EventContext (https://stackoverflow.com/a/76349232/95242)
declare module 'h3' {
  interface H3EventContext {
    user?: User;              // the Supabase User
    dbUser?: FullDBUser;      // the corresponding Database User
    activeAccountId?: number; // the account ID that is active for the user
  }
}

export default defineEventHandler(async (event) => {
  const cookies = parseCookies(event)
  if(cookies && cookies['sb-access-token']){
    const user = await serverSupabaseUser(event);
    if (user) {
      event.context.user = user;

      const authService = new AuthService();
      let dbUser = await authService.getFullUserBySupabaseId(user.id);
      
      if (!dbUser && user) {
        dbUser = await authService.createUser(user.id, user.user_metadata.full_name?user.user_metadata.full_name:"no name supplied", user.email?user.email:"no@email.supplied" );
        console.log(`\n Created DB User \n ${JSON.stringify(dbUser)}\n`);
      }
  
      if(dbUser){
        event.context.dbUser = dbUser;
        let activeAccountId;
        const preferredAccountId = getCookie(event, 'preferred-active-account-id')
        if(preferredAccountId && dbUser?.memberships.find(m => m.account_id === +preferredAccountId && !m.pending)){
          activeAccountId = +preferredAccountId
        } else {
          const defaultActive = dbUser.memberships[0].account_id.toString();
          setCookie(event, 'preferred-active-account-id', defaultActive, {expires: new Date(Date.now() + 1000 * 60 * 60 * 24  * 365 * 10)});
          activeAccountId = +defaultActive;
        }
        if(activeAccountId){
          event.context.activeAccountId = activeAccountId;
        }
      }
    }
  }
});