import { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'
import Logger from '@ioc:Adonis/Core/Logger'
import Nonce from 'App/Models/Nonce'
import Database from '@ioc:Adonis/Lucid/Database'
import { DateTime } from 'luxon'

type AuthSuccResult = {
	notification: {
		type: string,
		text: string
	}
	user: string,
	role: string,
	token: string
}

type AuthErrResult = {
	notification: {
		text: string,
		type: string
	}
}

export default class AuthController {
	

	/**TODO #3 implement rememberMe function */
    public async login({auth, request, response}: HttpContextContract) {
        const username = request.body().username
        const password = request.body().password
		// const rememberMe = request.body().rememberMe ?? false

        try {
            const token = await auth.use('api').attempt(username, password)

			const result : AuthSuccResult = {
				notification: {
					type: 'success',
					text: 'Login successful!'
				},
				user: auth.user?.username ?? '',
				role: auth.user?.role ?? '',
				token: token.token
			}

            return response.ok(result)

        } catch (error) {
			const result : AuthErrResult = {
				notification: {
					type: 'danger',
					text: error.message
				}
			}

			return response.forbidden(result)
		}
    }

    public async logout({auth, response}: HttpContextContract) {
		Logger.info("entering logout function")
        try {
			await auth.use('api').revoke()
			return response.ok('Logged out successfully')
		}
		catch(error) {
			Logger.error(error.message)
		}
    }

	public async nonce(ctx: HttpContextContract) {
		const requestId = ctx.request.header('X-REQUEST-ID')

		try {
			this.deleteExpiredNonces()

			const nonce = await Nonce.create({
				requestId: requestId
			})

			return nonce.nonce
		}
		catch(err){
			return ctx.response.forbidden(err)
		}
	}

	private async deleteExpiredNonces(){
		try {
			await Database.from('nonces').where('expiry_date', '<', DateTime.now().toFormat('yyyy-MM-dd HH:mm:ss')).delete()
		}
		catch(err){
			throw err
		}
	}
}