import ngModule from '../../module';

class Controller {

    constructor($http, $scope, $translate, vnApp) {
        this.$http = $http;
        this.$ = $scope;
        this.$translate = $translate;
        this.vnApp = vnApp;
        this.removedPackages = [];
    }

    submit() {
        let query = `/ticket/api/TicketPackagings/crudTicketPackaging`;
        let packagesObj = {
            delete: this.removedPackages,
            create: [],
            update: []
        };

        this.packages.forEach(item => {
            if (typeof item.id === 'undefined')
                packagesObj.create.push(item);

            if (typeof item.id !== 'undefined' && !this.packageEquals(item, this.oldPackages[item.id]))
                packagesObj.update.push(item);
        });

        if (this.$.form.$invalid)
            return this.vnApp.showMessage(this.$translate.instant('Some fields are invalid'));

        if (!this.hasChanges(packagesObj))
            return this.vnApp.showMessage(this.$translate.instant('No changes to save'));

        this.$http.post(query, packagesObj).then(res => {
            this.$.index.accept();
        });
    }

    removePackage(index) {
        if (this.packages[index] && this.packages[index].id)
            this.removedPackages.push(this.packages[index].id);

        this.packages.splice(index, 1);
    }

    addPackage() {
        let data = {
            packagingFk: null,
            quantity: null,
            created: Date.now(),
            ticketFk: this.ticket.id
        };
        this.packages.push(data);
    }

    getPackages() {
        this.packages = this.$.index.model;
        this.setOldPackages();
    }

    setOldPackages() {
        if (this.oldPackages && !this.$.watcher.dataChanged())
            return;

        this.oldPackages = [];
        this.removedPackages = [];
        this.packages.forEach(item => {
            this.oldPackages[item.id] = Object.assign({}, item);
        });
    }

    packageEquals(newPackage, oldPackage) {
        return newPackage.packagingFk === oldPackage.packagingFk && newPackage.quantity == oldPackage.quantity;
    }

    hasChanges(packagesObj) {
        if (packagesObj.create.length || packagesObj.update.length || packagesObj.delete.length)
            return true;

        return false;
    }
}

Controller.$inject = ['$http', '$scope', '$translate', 'vnApp'];

ngModule.component('vnTicketPackageIndex', {
    template: require('./package.html'),
    controller: Controller,
    bindings: {
        ticket: '<'
    }
});