const { Controller } = require('libflitter')

class ReflectController extends Controller {
    static get services() {
        return [...super.services, 'routers', 'models', 'activity']
    }

    async get_announcements(req, res, next) {
        const Announcement = this.models.get('system:Announcement')
        const announcements = await Announcement.find()

        const data = []
        for ( const announcement of announcements ) {
            data.push(await announcement.to_api())
        }

        return res.api(data)
    }

    async get_announcement(req, res, next) {
        const Announcement = this.models.get('system:Announcement')
        const announcement = await Announcement.findById(req.params.id)

        if ( !announcement )
            return res.status(404)
                .message(req.T('api.announcement_not_found'))
                .api()

        return res.api(await announcement.to_api())
    }

    async create_announcement(req, res, next) {
        const Announcement = this.models.get('system:Announcement')

        const required_fields = ['title', 'message', 'user_ids', 'group_ids', 'type']
        for ( const field of required_fields ) {
            if ( !req.body[field] )
                return res.status(400)
                    .message(`${req.T('api.missing_field')} ${field}`)
                    .api()
        }

        if ( !Array.isArray(req.body.user_ids) )
            return res.status(400)
                .message(`${req.T('api.improper_field')} user_ids`)
                .api()

        if ( !Array.isArray(req.body.group_ids) )
            return res.status(400)
                .message(`${req.T('api.improper_field')} group_ids`)
                .api()

        if ( !['email', 'login', 'banner'].includes(req.body.type) )
            return res.status(400)
                .message(`${req.T('api.improper_field')} type`)
                .api()

        const announcement = new Announcement({
            title: req.body.title,
            message: req.body.message,
            user_ids: req.body.user_ids,
            group_ids: req.body.group_ids,
            type: req.body.type,
        })

        await announcement.save()
        return res.api(await announcement.to_api())
    }

    async delete_announcement(req, res, next) {
        const Announcement = this.models.get('system:Announcement')
        const announcement = await Announcement.findById(req.params.id)

        if ( !announcement )
            return res.status(404)
                .message(req.T('api.announcement_not_found'))
                .api()

        await announcement.delete()
        return res.api()
    }
}

module.exports = exports = ReflectController