import { defineStore } from 'pinia'
import { ref } from 'vue'
import { ApiError, useApi } from '@/composables/useApi'

export type SessionStatus = 'idle' | 'checking' | 'ready' | 'error'

export interface Session {
	verified: boolean
}

export const useSessionStore = defineStore('session', () => {
	const status = ref<SessionStatus>('idle')
	const session = ref<Session | null>(null)
	let pending: Promise<void> | null = null

	function check() {
		if (pending) {
			return pending
		}

		status.value = 'checking'
		const { getMe } = useApi()

		pending = getMe()
			.then((result) => {
				session.value = result
				status.value = 'ready'
			})
			.catch((error) => {
				if (error instanceof ApiError && error.status === 401) {
					session.value = null
					status.value = 'ready'
					return
				}
				status.value = 'error'
			})
			.finally(() => {
				pending = null
			})

		return pending
	}

	function retry() {
		status.value = 'idle'
		return check()
	}

	return { status, session, check, retry }
})