// vim: set tw=80 ts=4 sw=4 sts=4:
/*
    This file is part of Accountant.

    Accountant is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Accountant is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
 */
/* jshint node: true */
'use strict';

var angular = require('angular');

var ngResource       = require('angular-resource'),
    ngMessages       = require('angular-messages'),
    ngUiBootstrap    = require('angular-ui-bootstrap'),
    ngUiNotification = require('angular-ui-notification');

var accountFormTmpl = require('./account.form.tmpl.html'),
    accountDeleteTmpl = require('./account.delete.tmpl.html');

var accountModule = angular.module('accountant.accounts', [
    ngResource,
    ngMessages,
    ngUiBootstrap,
    ngUiNotification
])

    .config(function($resourceProvider) {
        // Keep trailing slashes to avoid redirect by flask..
        $resourceProvider.defaults.stripTrailingSlashes = false;
    })

    .factory('Account', function($resource) {
        var Account = $resource(
            '/api/account/:id', {
                id: '@id'
            }
        );

        Account.prototype.getBalances = function() {
            var Balances = $resource('/api/account/:id/balances', {id: this.id});

            this.balances = Balances.get();
        };

        Account.prototype.getBalance = function(begin, end) {
            var Balance = $resource(
                '/api/account/:id/balance', {
                    id: this.id,
                    begin: begin.format('YYYY-MM-DD'),
                    end: end.format('YYYY-MM-DD')
                });

            this.balance = Balance.get();
        };

        return Account;
    })

    .controller('AccountController', function(Account, Notification, $uibModal, $log, $q) {
        var vm = this;

        /*
         * Return the class for an account current value compared to authorized
         * overdraft.
         */
        vm.rowClass = function(account) {
            // eslint-disable-next-line camelcase
            if (!account || !account.authorized_overdraft || !account.current) {
                return;
            }

            // eslint-disable-next-line camelcase
            if (account.current < account.authorized_overdraft) {
                return 'danger';
            } else if (account.current < 0) {
                return 'warning';
            }
        };

        /*
         * Return the class for a value compared to account authorized overdraft.
         */
        vm.valueClass = function(account, value) {
            if (!account || !value) {
                return;
            }

            // eslint-disable-next-line camelcase
            if (value < account.authorized_overdraft) {
                return 'text-danger';
            } else if (value < 0) {
                return 'text-warning';
            }
        };

        /*
         * Add an empty account.
         */
        vm.add = function() {
            var account = new Account({
                // eslint-disable-next-line camelcase
                authorized_overdraft: 0
            });

            // Insert account at the begining of the array.
            return vm.modify(account);
        };

        /*
         * Save account.
         */
        vm.save = function(account) {
            return account.$save().then(function(data) {
                Notification.success('Account #' + data.id + ' saved.');

                vm.accounts = Account.query();

                return data;
            }, function(result){
                $log.error('Error while saving account', account, result);

                Notification.error(
                    'Error while saving account: ' + result.message
                );

                return $q.reject(result);
            });
        };

        /*
         * Delete an account.
         */
        vm.delete = function(account, $index) {
            var id = account.id;

            $uibModal.open({
                component: 'accountDeleteModalComponent',
                resolve: {
                    account: function() {
                        return account;
                    }
                }
            }).result.then(function(account) {
                return account.$delete().then(function() {
                    Notification.success('account #' + id + ' deleted.');

                    vm.accounts = Account.query();

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

                    return $q.reject(result);
                });
            }, function() {
                return false;
            });
        };

        /*
         * Open the popup to modify the account, save it on confirm.
         * @returns a promise.
         */
        vm.modify = function(account) {
            return $uibModal.open({
                component: 'accountModifyModalComponent',
                resolve: {
                    account: function() {
                        return account;
                    }
                }
            }).result.then(function(account) {
                return vm.save(account);
            }, function() {
                return false;
            });
        };

        // Load accounts.
        vm.accounts = Account.query();
    })

    .component('accountModifyModalComponent', {
        templateUrl: accountFormTmpl,
        bindings: {
            resolve: '<',
            close: '&',
            dismiss: '&'
        },
        controller: function() {
            var vm = this;

            vm.$onInit = function() {
                vm.account = vm.resolve.account;
                vm.authorized_overdraft = - vm.account.authorized_overdraft;
            };

            vm.authorizedOverdraftChange = function() {
                vm.account.authorized_overdraft = - vm.authorized_overdraft;
            };

            vm.ok = function() {
                vm.close({
                    $value: vm.account
                });
            };

            vm.cancel = function() {
                vm.dismiss({
                    $value: 'cancel'
                });
            };

            vm.title = function() {
                // FIXME Alexis Lahouze 2017-06-15 i18n
                if (vm.account.id) {
                    return "Account #" + vm.account.id;
                } else {
                    return "Account";
                }
            };
        }
    })

    .component('accountDeleteModalComponent', {
        templateUrl: accountDeleteTmpl,
        bindings: {
            resolve: '<',
            close: '&',
            dismiss: '&'
        },
        controller: function() {
            var vm = this;

            vm.$onInit = function() {
                vm.account = vm.resolve.account;
            };

            vm.ok = function() {
                vm.close({
                    $value: vm.account
                });
            };

            vm.cancel = function() {
                vm.dismiss({
                    $value: 'cancel'
                });
            };

            vm.title = function() {
                // FIXME Alexis Lahouze 2017-06-15 i18n
                if (vm.account.id) {
                    return "Account #" + vm.account.id;
                } else {
                    return "Account";
                }
            };
        }
    });

module.exports = accountModule;