const Joi = require('joi')

const pluginConfig = {
    handlerType: 'grouping',
    docs: {
        description: 'join',
        notes: 'Join a grouping by creating a membership record',
    },
}

const validators = {
    join: {
        payload: Joi.object({
            user_id: Joi.number().required(),
            target_id: Joi.number().allow(null),
            grouping_id: Joi.number().allow(null),
            grouping_name: Joi.string().allow(null),
            grouping_type: Joi.string().allow(null),
            role: Joi.string(),
        }),
    },
}

module.exports = {
    method: 'POST',
    path: '/join',
    options: {
        ...pluginConfig.docs,
        tags: ['api'],
        auth: false,

        /**
         * Join a grouping by creating a membership record
         * @param {*} request
         * @param {*} h
         * @returns {object}
         */
        handler: async function (request) {
            try {
                const { membershipService } = request.services()

                /** Grab payload info */
                const res = request.payload
                const groupingToWrite = {
                    grouping_id: res.grouping_id,
                    grouping_name: res.grouping_name,
                    grouping_type: res.grouping_type,
                }

                /** Default to participant role */
                const role = res.role ? res.role : 'participant'

                /** User membership service method to create membership */
                const memberships = await membershipService.joinGrouping(
                    res.user_id,
                    res.target_id,
                    groupingToWrite,
                    role,
                )

                return {
                    ok: true,
                    handler: pluginConfig.handlerType,
                    data: {
                        memberships,
                        hasMatch: memberships.every(
                            membership => membership.is_active == true,
                        ),
                    },
                }
            } catch (err) {
                return {
                    ok: false,
                    handler: pluginConfig.handlerType,
                    data: { error: `${err}` },
                }
            }
        },
        validate: validators.join,
        response: {
            schema: Joi.object({
                ok: Joi.bool(),
                handler: Joi.string(),
                data: Joi.object(),
            }),
            failAction: 'log',
        },
    },
}