module.exports = Self => {
    Self.remoteMethod('summary', {
        description: 'Returns a client summary',
        accessType: 'READ',
        accepts: [{
            arg: 'id',
            type: 'number',
            required: true,
            description: 'client id',
            http: {source: 'path'}
        }],
        returns: {
            type: [this.modelName],
            root: true
        },
        http: {
            path: `/:id/summary`,
            verb: 'GET'
        }
    });

    Self.summary = async clientFk => {
        let models = Self.app.models;
        let summaryObj = await getSummary(models.Client, clientFk);

        summaryObj.mana = await models.Client.getMana(clientFk);
        summaryObj.debt = await models.Client.getDebt(clientFk);
        summaryObj.averageInvoiced = await models.Client.getAverageInvoiced(clientFk);
        summaryObj.totalGreuge = await models.Greuge.sumAmount(clientFk);
        summaryObj.recovery = await getRecoveries(models.Recovery, clientFk);

        return summaryObj;
    };

    async function getSummary(client, clientId) {
        let filter = {
            include: [
                {relation: 'account', scope: {fields: ['name', 'active']}},
                {relation: 'salesPerson', scope: {fields: ['firstName', 'name']}},
                {relation: 'country', scope: {fields: ['country']}},
                {relation: 'province', scope: {fields: ['name']}},
                {relation: 'contactChannel', scope: {fields: ['name']}},
                {relation: 'payMethod', scope: {fields: ['name']}},
                {
                    relation: 'addresses',
                    scope: {
                        where: {isDefaultAddress: true},
                        fields: ['nickname', 'street', 'city', 'postalCode']
                    }
                },
                {
                    relation: 'classifications',
                    scope: {
                        include: {
                            relation: 'insurances',
                            scope: {
                                fields: ['id', 'grade', 'created'],
                                order: 'created DESC'
                            }
                        },
                        where: {finished: null}
                    }
                },
                {
                    relation: 'defaulters',
                    scope: {
                        fields: ['amount'],
                        order: 'created DESC',
                        limit: 1
                    }
                },
                {
                    relation: 'clientRisks',
                    scope: {
                        fields: ['amount', 'companyFk']
                    }
                },
                {
                    relation: 'claimsRatio',
                    scope: {
                        fields: ['claimingRate', 'priceIncreasing'],
                        limit: 1
                    }
                }
            ],
            where: {id: clientId}
        };

        return await client.findOne(filter);
    }

    async function getRecoveries(recovery, clientId) {
        let filter = {
            where: {
                and: [{clientFk: clientId}, {or: [{finished: null}, {finished: {gt: Date.now()}}]}]
            },
            limit: 1
        };

        return await recovery.findOne(filter);
    }
};