import { betterAuth } from 'better-auth'
import { drizzleAdapter } from 'better-auth/adapters/drizzle'
import { magicLink } from 'better-auth/plugins'
import { db } from './db'
import * as schema from './db/schema'
import { sendEmail } from './email'

export const auth = betterAuth({
  logger: { level: 'debug' },
  database: drizzleAdapter(db, {
    provider: 'pg',
    schema: {
      user:         schema.user,
      session:      schema.session,
      verification: schema.verification,
    },
  }),

  // Disable password-based signup — invite-only, magic link only
  emailAndPassword: { enabled: false },

  plugins: [
    magicLink({
      disableSignUp: true, // only existing (invited) users can sign in
      sendMagicLink: async ({ email, url }) => {
        await sendEmail({
          to: email,
          subject: 'Sign in to MulliganMates',
          html: `
            <div style="font-family:sans-serif;max-width:480px;margin:0 auto;padding:32px">
              <div style="font-size:32px;margin-bottom:8px">⛳</div>
              <h1 style="font-size:24px;font-weight:700;color:#16a34a;margin:0 0 8px">MulliganMates</h1>
              <p style="color:#374151;margin:0 0 24px">Click the button below to sign in. This link expires in 1 hour.</p>
              <a href="${url}"
                 style="display:inline-block;background:#16a34a;color:#fff;text-decoration:none;
                        font-weight:600;font-size:16px;padding:14px 28px;border-radius:8px">
                Sign in
              </a>
              <p style="color:#6b7280;font-size:13px;margin-top:24px">
                Or copy this link:<br>
                <a href="${url}" style="color:#16a34a;word-break:break-all">${url}</a>
              </p>
            </div>
          `,
        })
      },
    }),
  ],

  user: {
    additionalFields: {
      handicapIndex: {
        type: 'number',
        nullable: true,
        fieldName: 'handicap_index',
      },
    },
  },
})

export type Session = typeof auth.$Infer.Session