import { User } from '../user/userStore.ts'
import { dispatchMessage } from '../messageBus/messageBus.ts'
import client from '../api/client.ts'
import { ProblemDetails } from '../../types'

export class AuthService {
  constructor(private readonly user: User | null) {}

  async login(username: string, password: string) {
    if (this.user != null) {
      throw new Error('already logged in')
    }

    const res = await client.POST('/auth/login', {
      body: { username, password },
      credentials: 'include',
    })

    if (!res.data) {
      throw new Error('invalid credentials')
    }

    dispatchMessage('auth:logged-in', { ...res.data })
  }

  async signup(username: string, password: string, signupCode: string) {
    if (this.user != null) {
      throw new Error('already logged in')
    }

    const res = await client.POST('/auth/register', {
      body: { username, password, signupCode, email: null },
      credentials: 'include',
    })

    if (!res.data) {
      console.error(res.error)
      throw new Error((res.error as ProblemDetails)?.detail ?? 'invalid credentials')
    }

    dispatchMessage('auth:registered', { ...res.data })
  }

  async logout() {
    if (this.user == null) {
      return
    }

    await client.DELETE('/auth/session', { credentials: 'include' })

    dispatchMessage('auth:logged-out', null)
  }
}