'use strict';

angular.module('Application').controller('SettingsController', ['$scope', '$location', '$rootScope', '$timeout', 'Client', 'AppStore', function ($scope, $location, $rootScope, $timeout, Client, AppStore) {
    Client.onReady(function () { if (!Client.getUserInfo().admin) $location.path('/'); });

    $scope.client = Client;
    $scope.user = Client.getUserInfo();
    $scope.config = Client.getConfig();
    $scope.caasConfig = {};
    $scope.appstoreConfig = {};
    $scope.installedApps = Client.getInstalledApps();

    $scope.currency = null;
    $scope.availableRegions = [];
    $scope.currentRegionSlug = null;
    $scope.availablePlans = [];
    $scope.currentPlan = null;

    $scope.subscription = null;

    $scope.prettyProviderName = function (provider) {
        switch (provider) {
            case 'caas': return 'Managed Cloudron';
            default: return provider;
        }
    };

    $scope.update = {
        error: {},
        busy: false,

        show: function (form) {
            $scope.update.error.generic = null;
            $scope.update.busy = false;

            form.$setPristine();
            form.$setUntouched();

            if (!$scope.config.update.box.sourceTarballUrl) {
                $('#setupSubscriptionModal').modal('show');
            } else {
                $('#updateModal').modal('show');
            }
        },

        submit: function () {
            $scope.update.error.generic = null;
            $scope.update.busy = true;

            Client.update(function (error) {
                if (error) {
                    if (error.statusCode === 409) {
                        $scope.update.error.generic = 'Please try again later. The Cloudron is creating a backup at the moment.';
                    } else {
                        $scope.update.error.generic = error.message;
                        console.error('Unable to update.', error);
                    }
                    $scope.update.busy = false;
                    return;
                }

                window.location.href = '/update.html';
            });
        }
    };

    $scope.planChange = {
        busy: false,
        error: {},
        password: '',
        requestedPlan: null,

        showChangePlan: function () {
            $('#planChangeModal').modal('show');
        },

        planChangeReset: function () {
            $scope.planChange.error.password = null;
            $scope.planChange.password = '';

            $scope.planChangeForm.$setPristine();
            $scope.planChangeForm.$setUntouched();
        },

        doChangePlan: function () {
            $scope.planChange.busy = true;

            var options = {
                size: $scope.planChange.requestedPlan.slug,
                name: $scope.planChange.requestedPlan.name,
                price: $scope.planChange.requestedPlan.price,
                region: $scope.currentRegionSlug
            };

            Client.changePlan(options, $scope.planChange.password, function (error) {
                $scope.planChange.busy = false;

                if (error) {
                    if (error.statusCode === 403) {
                        $scope.planChange.error.password = true;
                        $scope.planChange.password = '';
                        $scope.planChangeForm.password.$setPristine();
                        $('#inputPlanChangePassword').focus();
                    } else {
                        console.error('Unable to change plan.', error);
                    }
                } else {
                    $scope.planChange.planChangeReset();

                    $('#planChangeModal').modal('hide');

                    window.location.href = '/update.html';
                }

                $scope.planChange.busy = false;
            });
        }
    };

    $scope.avatarChange = {
        busy: false,
        error: {},
        avatar: null,
        availableAvatars: [{
            file: null,
            data: null,
            url: '/img/avatars/avatar_0.png',
        }, {
            file: null,
            data: null,
            url: '/img/avatars/rubber-duck.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/carrot.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/cup.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/football.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/owl.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/space-rocket.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/armchair.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/cap.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/pan.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/meat.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/umbrella.png'
        }, {
            file: null,
            data: null,
            url: '/img/avatars/jar.png'
        }],

        getBlobFromImg: function (img, callback) {
            var size = 256;

            var canvas = document.createElement('canvas');
            canvas.width = size;
            canvas.height = size;

            var imageDimensionRatio = img.width / img.height;
            var canvasDimensionRatio = canvas.width / canvas.height;
            var renderableHeight, renderableWidth, xStart, yStart;

            if (imageDimensionRatio > canvasDimensionRatio) {
                renderableHeight = canvas.height;
                renderableWidth = img.width * (renderableHeight / img.height);
                xStart = (canvas.width - renderableWidth) / 2;
                yStart = 0;
            } else if (imageDimensionRatio < canvasDimensionRatio) {
                renderableWidth = canvas.width;
                renderableHeight = img.height * (renderableWidth / img.width);
                xStart = 0;
                yStart = (canvas.height - renderableHeight) / 2;
            } else {
                renderableHeight = canvas.height;
                renderableWidth = canvas.width;
                xStart = 0;
                yStart = 0;
            }

            var ctx = canvas.getContext('2d');
            ctx.clearRect(0, 0, canvas.width, canvas.height);
            ctx.drawImage(img, xStart, yStart, renderableWidth, renderableHeight);

            canvas.toBlob(callback);
        },

        doChangeAvatar: function () {
            $scope.avatarChange.error.avatar = null;
            $scope.avatarChange.busy = true;

            var img = document.getElementById('previewAvatar');
            $scope.avatarChange.avatar.file = $scope.avatarChange.getBlobFromImg(img, function (blob) {
                Client.changeCloudronAvatar(blob, function (error) {
                    if (error) {
                        console.error('Unable to change cloudron avatar.', error);
                    } else {
                        Client.resetAvatar();
                    }

                    $('#avatarChangeModal').modal('hide');
                    $scope.avatarChange.avatarChangeReset();
                });
            });
        },

        setPreviewAvatar: function (avatar) {
            $scope.avatarChange.avatar = avatar;
        },

        avatarChangeReset: function () {
            $scope.avatarChange.error.avatar = null;
            $scope.avatarChange.avatar = null;
            $scope.avatarChange.busy = false;
        },

        showChangeAvatar: function () {
            $scope.avatarChange.avatarChangeReset();
            $('#avatarChangeModal').modal('show');
        },

        showCustomAvatarSelector: function () {
            $('#avatarFileInput').click();
        }
    };

    $scope.s3like = function (provider) {
        return provider === 's3' || provider === 'minio' || provider === 's3-v4-compat' || provider === 'exoscale-sos' || provider === 'digitalocean-spaces';
    };

    $scope.autoUpdate = {
        busy: false,
        success: false,
        error: '',
        pattern: '',
        currentPattern: '',

        checkNow: function () {
            $scope.autoUpdate.busy = true;

            Client.checkForUpdates(function (error) {
                if (error) $scope.autoUpdate.error = error.message;

                $scope.autoUpdate.busy = false;
            });
        },

        submit: function () {
            if ($scope.autoUpdate.pattern === $scope.autoUpdate.currentPattern) return;

            $scope.autoUpdate.error = '';
            $scope.autoUpdate.busy = true;
            $scope.autoUpdate.success = false;

            Client.setAppAutoupdatePattern($scope.autoUpdate.pattern, function (error) {
                if (error) $scope.autoUpdate.error = error.message;
                else $scope.autoUpdate.currentPattern = $scope.autoUpdate.pattern;

                $scope.autoUpdate.busy = false;
                $scope.autoUpdate.success = true;
            });
        }
    };

    function getAutoupdatePattern() {
        Client.getAppAutoupdatePattern(function (error, result) {
            if (error) return console.error(error);

            $scope.autoUpdate.currentPattern = result.pattern;
            $scope.autoUpdate.pattern = result.pattern;
        });
    }

    function getSubscription() {
        AppStore.getSubscription($scope.appstoreConfig, function (error, result) {
            if (error) return console.error(error);

            $scope.subscription = result;

            // also reload the subscription on the main controller
            $scope.$parent.fetchAppstoreProfileAndSubscription(function () {});

            // check again to give more immediate feedback once a subscription was setup
            if (result.plan.id === 'free') $timeout(getSubscription, 10000);
        });
    }

    function getPlans() {
        AppStore.getSizes(function (error, result) {
            if (error) return console.error(error);

            var found = false;
            var SIZE_SLUGS = [ '512mb', '1gb', '2gb', '4gb', '8gb', '16gb', '32gb', '48gb', '64gb' ];
            result = result.filter(function (size) {
                // only show plans bigger than the current size
                if (found) return true;
                found = SIZE_SLUGS.indexOf(size.slug) > SIZE_SLUGS.indexOf($scope.caasConfig.plan.slug);
                return found;
            });
            angular.copy(result, $scope.availablePlans);

            // prepend the current plan
            $scope.availablePlans.unshift($scope.caasConfig.plan);

            $scope.planChange.requestedPlan = $scope.availablePlans[0]; // need the reference to preselect

            AppStore.getRegions(function (error, result) {
                if (error) return console.error(error);

                angular.copy(result, $scope.availableRegions);

                $scope.currentRegionSlug = $scope.caasConfig.region;
            });
        });
    }

    $('#avatarFileInput').get(0).onchange = function (event) {
        var fr = new FileReader();
        fr.onload = function () {
            $scope.$apply(function () {
                var tmp = {
                    file: event.target.files[0],
                    data: fr.result,
                    url: null
                };

                $scope.avatarChange.availableAvatars.push(tmp);
                $scope.avatarChange.setPreviewAvatar(tmp);
            });
        };
        fr.readAsDataURL(event.target.files[0]);
    };

    $scope.cloudronNameChange = {
        busy: false,
        error: {},
        name: '',

        reset: function () {
            $scope.cloudronNameChange.busy = false;
            $scope.cloudronNameChange.error.name = null;
            $scope.cloudronNameChange.name = '';

            $scope.cloudronNameChangeForm.$setUntouched();
            $scope.cloudronNameChangeForm.$setPristine();
        },

        show: function () {
            $scope.cloudronNameChange.reset();
            $scope.cloudronNameChange.name = $scope.config.cloudronName;
            $('#cloudronNameChangeModal').modal('show');
        },

        submit: function () {
            $scope.cloudronNameChange.error.name = null;
            $scope.cloudronNameChange.busy = true;

            Client.changeCloudronName($scope.cloudronNameChange.name, function (error) {
                $scope.cloudronNameChange.busy = false;

                if (error) {
                    if (error.statusCode === 400) {
                        $scope.cloudronNameChange.error.name = 'Invalid name';
                        $scope.cloudronNameChange.name = '';
                        $('#inputCloudronName').focus();
                        $scope.cloudronNameChangeForm.password.$setPristine();
                    } else {
                        console.error('Unable to change name.', error);
                        return;
                    }
                }

                $scope.cloudronNameChange.reset();
                $('#cloudronNameChangeModal').modal('hide');

                Client.refreshConfig();
            });
        }
    };

    Client.onReady(function () {
        getAutoupdatePattern();

        if ($scope.config.provider === 'caas') {
            Client.getCaasConfig(function (error, caasConfig) {
                if (error) return console.error(error);

                $scope.caasConfig = caasConfig;

                getPlans();

                $scope.currentPlan = caasConfig.plan;
                $scope.currency = caasConfig.currency === 'eur' ? '€' : '$';
            });
        } else {
            Client.getAppstoreConfig(function (error, appstoreConfig) {
                if (error) return console.error(error);
                if (!appstoreConfig.token) return;

                AppStore.getProfile(appstoreConfig.token, function (error, result) {
                    if (error) return console.error(error);

                    // assign late to avoid UI flicketing on update
                    appstoreConfig.profile = result;
                    $scope.appstoreConfig = appstoreConfig;

                    getSubscription();
                });
            });
        }
    });

    // setup all the dialog focus handling
    ['planChangeModal', 'appstoreLoginModal', 'cloudronNameChangeModal'].forEach(function (id) {
        $('#' + id).on('shown.bs.modal', function () {
            $(this).find("[autofocus]:first").focus();
        });
    });

    $('.modal-backdrop').remove();
}]);