balanced/balanced-dashboard

import Customer from "balanced-dashboard/models/customer";
import CreditCreator from "./credit-creator";
import baseValidationsObject from "./base-validations";
import CreditCreatorFields from "./credit-creator-fields";

var ExistingCustomerCreditCreator = CreditCreator.extend({
    validations: _.extend({}, baseValidationsObject, {
        "csvFields.existing_customer_name_or_email": {
            presence: true,
        },
        customer: {
            existence: {
                validator: function(object, attribute, customer) {
                    var matchesLength = object.get("customersCollection.length");

                    if (matchesLength === 0) {
                        object.get("validationErrors").add("csvFields.existing_customer_name_or_email", "existence", null, "no matching customer found");
                    } else if (matchesLength > 1) {
                        object.get("validationErrors").add("csvFields.existing_customer_name_or_email", "existence", null, "multiple customers found");
                    }
                }
            }
        },
        bankAccount: {
            existence: {
                validator: function(object, attribute, value) {
                    var matchesLength = object.get("customer.bank_accounts.length");

                    if (matchesLength === 0) {
                        object.get("validationErrors").add("bankAccount", "existence", null, "no bank accounts available");
                    } else if (matchesLength > 1) {
                        object.get("validationErrors").add("bankAccount", "existence", null, "multiple bank accounts found");
                    }
                }
            }
        },
    }),

    getErrorObject: function() {
        return this.getProperties(
            "existing_customer_name_or_email",
            "amount",
            "appears_on_statement_as",
            "description"
        );
    },

    fieldNames: CreditCreatorFields.EXISTING_CUSTOMER_FIELDS,
    isExisting: true,

    save: function() {
        return this.get('credit').save();
    },

    customer: function() {
        var collection = this.get("customersCollection");

        if (collection) {
            return collection.get("length") === 1 ?
                collection.objectAt(0) :
                null;
        }
        return undefined;
    }.property("customersCollection", "customersCollection.length"),

    bankAccount: function() {
        var customer = this.get("customer");
        var collection = this.get("customer.bank_accounts");

        if (customer === null) {
            return null;
        } else if (collection) {
            return collection.get("length") === 1 ?
                collection.objectAt(0) :
                null;
        }
        return undefined;
    }.property("customer", "customer.bank_accounts", "customer.bank_accounts.length")
});

ExistingCustomerCreditCreator.reopenClass({
    fieldNames: CreditCreatorFields.EXISTING_CUSTOMER_FIELDS,
    createFromQuery: function(marketplace, attributes) {
        var creator = this.create({
            csvFields: attributes
        });

        var results = Customer.findByNameOrEmail(marketplace, attributes.existing_customer_name_or_email);
        results.addObserver("isLoaded", function() {
            creator.set("customersCollection", results);
        });
        creator.addObserver("isLoaded", function() {
            creator.validate();
        });

        return creator;
    }
});

export default ExistingCustomerCreditCreator;