var operationFormTmpl   = require('./operation.form.tmpl.html'),
    operationDeleteTmpl = require('./operation.delete.tmpl.html');

import { Observable } from 'rxjs/Rx';

import { ToastrService } from 'ngx-toastr';

import { AccountService } from '../accounts/account.service';
import { Operation } from './operation';
import { OperationService } from './operation.service';

module.exports = function(
    $modal,
    accountIdService,
    toastrService: ToastrService,
    operationService: OperationService,
    AccountService: AccountService
){
    var vm = this;

    /*
     * Add an empty operation.
     */
    vm.add = function() {
        var operation = new Operation();
        operation.account_id = accountIdService.get();

        return vm.modify(operation);
    };

    /*
     * Load operations.
     */
    vm.load = function(minDate, maxDate) {
        vm.minDate = minDate;
        vm.maxDate = maxDate;

        return operationService.query(
            accountIdService.get(),
            minDate,
            maxDate
        ).subscribe((operations: Operation[]) => {
            vm.operations = operations;
        });
    };

    /*
     * Toggle pointed indicator for an operation.
     */
    vm.togglePointed = function(operation, rowform) {
        operation.pointed = !operation.pointed;

        vm.save(operation);
    };

    /*
     * Toggle cancel indicator for an operation.
     */
    vm.toggleCanceled = function(operation) {
        operation.canceled = !operation.canceled;

        vm.save(operation);
    };

    /*
     * Save an operation and return a promise.
     */
    vm.save = function(operation) {
        operation.confirmed = true;

        var observable: Observable<Operation>;

        if(operation.id){
            observable = operationService.update(operation);
        } else {
            observable = operationService.create(operation);
        }

        return observable.subscribe((operation) => {
            toastrService.success('Operation #' + operation.id + ' saved.');

            vm.load();

            return operation;
        }, (result) => {
            toastrService.error(
                'Error while saving operation: ' + result.message
            );
        });
    };

    /*
     * Delete an operation and return a promise.
     */
    vm.confirmDelete = function(operation) {
        var title = "Delete operation #" + operation.id;

        $modal({
            templateUrl: operationDeleteTmpl,
            controller: function($scope, title, operation, $delete) {
                $scope.title = title;
                $scope.operation = operation;
                $scope.$delete = function() {
                    $scope.$hide();
                    $delete($scope.operation);
                };
            },
            locals: {
                title: title,
                operation: operation,
                $delete: vm.delete
            }
        });
    };

    vm.delete = function(operation) {
        var id = operation.id;

        return operationService.delete(operation).subscribe(() => {
            toastrService.success('Operation #' + id + ' deleted.');

            vm.load();

            return operation;
        }, (result) => {
            toastrService.error(
                'An error occurred while trying to delete operation #' +
                id + ':<br />' + result
            );
        });
    };

    /*
     * Open the popup to modify the operation, save it on confirm.
     * @returns a promise.
     */
    vm.modify = function(operation) {
        // FIXME Alexis Lahouze 2017-06-15 i18n
        var title = "Operation";

        if (operation.id) {
            title = title + " #" + operation.id;
        }

        $modal({
            templateUrl: operationFormTmpl,
            controller: function($scope, title, operation, $save) {
                $scope.title = title;
                $scope.operation = operation;
                $scope.$save = function() {
                    $scope.$hide();
                    $save($scope.operation);
                };
            },
            locals: {
                title: title,
                operation: operation,
                $save: vm.save
            }
        });
    };

    vm.onUpdate = function(dateRange) {
        vm.load(dateRange.minDate, dateRange.maxDate);
    };

    AccountService.get(accountIdService.get()).subscribe(account => {
        vm.account = account
    });
};