if (!String.prototype.includes) {
    String.prototype.includes = function () {
        'use strict';
        return String.prototype.indexOf.apply(this, arguments) !== -1;
    };
}
//extend FileReader
if (!FileReader.prototype.readAsBinaryString) {
    FileReader.prototype.readAsBinaryString = function (fileData) {
        var binary    = "";
        var pt        = this;
        var reader    = new FileReader();
        reader.onload = function (e) {
            var bytes  = new Uint8Array(reader.result);
            var length = bytes.byteLength;
            for (var i = 0; i < length; i++) {
                binary += String.fromCharCode(bytes[i]);
            }
            //pt.result  - readonly so assign binary
            pt.content = binary;
            $(pt).trigger('onload');
        }
        reader.readAsArrayBuffer(file);
    }
}

//localStorage persistence
var SHIFT_STORAGE_KEY = "dienstplan_chrosey";
var RULE_STORAGE_KEY  = "regeln_chrosey";
var shiftStorage      = {
    fetch: function () {
        'use strict';
        var parsed = JSON.parse(localStorage.getItem(SHIFT_STORAGE_KEY) || '[]'),
            shifts = [];
        parsed.forEach(function (el, index) {
            var shift = Shift.thaw(el);
            shift.id  = index;
            shifts.push(shift);
        });
        shiftStorage.uid = shifts.length;
        return shifts;
    },
    save : function (shifts) {
        'use strict';
        var json = JSON.stringify(shifts)
        localStorage.setItem(SHIFT_STORAGE_KEY, json);
    },
    count: function () {
        return JSON.parse(localStorage.getItem(SHIFT_STORAGE_KEY) || '[]').length;
    }
};
var ruleStorage       = {
    fetch: function () {
        'use strict';
        var parsed      = JSON.parse(localStorage.getItem(RULE_STORAGE_KEY)) | [];
        var rules       = parsed.length > 0 ?
                          parsed.map((e, i) => {
                              var r = Rule.thaw(e);
                              r.id  = i;
                              return r;
                          }) :
                          Rule.defaults();
        ruleStorage.uid = rules.length;
        return rules;
    },
    save : function (rules) {
        'use strict';
        var json = JSON.stringify(rules);
        localStorage.setItem(RULE_STORAGE_KEY, json);
    }
};

Vue.component('ask-format-modal', {
    template: `
        <div id="ask-format-modal" class="modal">
            <div class="modal-content">
                <h4>Dienstplanformat</h4>
                <p>Welches Format soll eingelesen werden?</p>
                <label v-for="option in options" >
                    <input name="dpFormat" type="radio" :value="option" v-model="picked"/>
                    <span>{{ option }}</span>
                </label>
                <p>Ausgewählt: {{ picked }}</p>
            </div>
            <div class="modal-footer">
                <a href="#!" class="modal-close waves-effect waves-green btn-flat" @click.stop="submitPick">Bastätigen</a>
            </div>
        </div>
    `,
    data() {
        return {
            picked: null
        }
    },
    props  : ["options"],
    methods: {
        submitPick() {
            this.$emit('picked-format', this.picked);
            $('#ask-format-modal').modal('close');
        }
    }

});

Vue.component('chip-input', {
    template: `
        <div class="chips no-autoinit" :id="name"></div>
    `,
    data() {
        return {
            instance: null,
            chips   : []
        }
    },

    computed: {
        chipsData() {
            return this.instance.chipsData;
        }
    },

    watch: {
        initData: {
            deep: true,
            handler(n, o) {
                if (n !== o) {
                    this.initialize();
                    this.$emit('init');
                }
            }
        }
    },
    props: {
        name    : String,
        initData: Array
    },

    methods: {
        initialize() {
            this.chips    = this.initData.map(e => e);
            var el        = $('#' + this.name)[0];
            this.instance = M.Chips.init(el, {
                data        : this.chips,
                onChipAdd   : () => {
                    this.$emit("change", this.chipsData);
                },
                onChipDelete: () => {
                    this.$emit("change", this.chipsData);
                }
            });
        }
    },

    mounted() {
        this.initialize();
    }
});

var app = new Vue({
    el   : '#app',
    data : {
        shifts            : shiftStorage.fetch(),
        rules             : ruleStorage.fetch(),
        icsFile           : null,
        blob              : null,
        dp_sheet          : '',
        deletedShift      : '',
        format            : '',
        remaining         : shiftStorage.count(),
        selectedShift     : new Shift({}),
        selectedShiftIndex: -1,
        selectedRule      : new Rule({}),
        selectedRuleIndex : -1,
        saveto            : 'dienstplan.ics',
        uploadFileName    : "",
        availableFormats  : ["Erfurt", "Stuttgart", "X"],
        stepper           : null,
        timepickers       : null,

        config: {
            moment    : {
                parse_formats   : [
                    "ddd, DD/ MMM. 'YY HH:mm",
                    "ddd, DD/ MMM. YYYY HH:mm"
                ],
                parse_language  : 'en',
                display_language: 'de'
            },
            stepper   : {
                firstActive: 0,
            },
            toast     : {
                displayLength: 3000
            },
            timepicker: {
                twelveHour: false,
            }
        },
    },
    watch: {
        shifts: {
            handler: function (shifts) {
                'use strict';
                shiftStorage.save(shifts);
                this.remaining = shifts.length;
                this.icsFile   = null;
                this.blob      = null;
                this.makeToast("Änderungen gespeichert.");
            },
            deep   : true
        },
        rules : {
            handler: function (rules) {
                'use strict';
                ruleStorage.save(rules);
                this.makeToast("Änderungen gespeichert.");
            },
            deep   : true
        }
    },

    computed: {
        groupedTermine() {
            return _.chain(this.shifts).sortBy(e => e.Datum).groupBy(e => e.Datum).value();
        }
    },

    methods   : {
        updateArten(value) {
            this.selectedRule.Arten = value;
        },

        updateTitel(value) {
            this.selectedRule.Titel = value;
        },

        makeToast(message) {
            var toastOptions  = this.config.toast;
            toastOptions.html = message;
            M.toast(toastOptions);
        },

        openModal(elementID) {
            var element = document.getElementById(elementID);
            var modal   = M.Modal.getInstance(element);
            modal.open();
        },

        closeModal(elementID) {
            var element = document.getElementById(elementID);
            var modal   = M.Modal.getInstance(element);
            modal.close();
        },


        onFileChange: function (event) {
            var files = event.target.files || event.dataTransfer.files;
            this.handleInputFile(files[0]);
            this.uploadFileName = files[0].name + " [" + Math.round(files[0].size / 1024) + " kB]";
            this.makeToast(this.uploadFileName + " ausgewählt");
        },

        handleInputFile: function (file) {
            var reader    = new FileReader();
            var vm        = this;
            reader.onload = (e) => {
                var data                 = !e ? reader.content : e.target.result;
                var workbook             = XLSX.read(data, {
                    type     : 'binary',
                    cellDates: true,
                });
                var isErfurterDienstplan = workbook.SheetNames.indexOf("Dienstplan") > -1;

                if (isErfurterDienstplan) {
                    vm.parseForErfurt(workbook.Sheets["Dienstplan"]);
                } else {
                    this.workbook = workbook;
                    this.askForDienstplanFormat();
                }
            };
            reader.readAsBinaryString(file);
        },

        askForDienstplanFormat: function () {
            this.makeToast("Dienstplanformat nicht erkannt.");
            this.openModal('ask-format-modal');
        },

        parseForErfurt: function (dp) {
            var arr     = XLSX.utils.sheet_to_row_object_array(dp, {
                range: 1
            });
            this.format = "Erfurt";
            var vm      = this;
            var day;

            this.makeToast("Erfurter Dienstplan erkannt.");

            arr.forEach(element => {
                moment.locale(vm.config.moment.parse_language);
                if (element.hasOwnProperty('Datum')) {
                    day = moment(element.Datum);
                }

                if (element.hasOwnProperty('Bemerkung')) {
                    if (element.Bemerkung.toString().search(/\d\d:\d\d\s/) >= 0) {
                        // prüfe ob eine Uhrzeit drinnen steht
                        let sonderzeit   = moment(element.Bemerkung, 'HH:mm');
                        let name         = element.Bemerkung.toString().replace(/\d\d:\d\d\s/, '').trim();
                        let splittedName = name.split(' ');

                        let terminArt = '';
                        splittedName.forEach(function (item) {
                            vm.rules.forEach(function (rule) {
                                rule.Arten.forEach(function (art) {
                                    if (art.tag == item) {
                                        terminArt = art.tag;
                                        name.replace(art.tag, '');
                                    }
                                })
                            })
                        });

                        let termin = {
                            datum       : day.clone().hour(sonderzeit.hour()).minute(sonderzeit.minute()),
                            art         : terminArt,
                            beschreibung: '',
                            name        : name.trim()
                        }
                        vm.addShift(new Shift(termin));
                        beschreibung = '';
                    }
                }

                if (element.hasOwnProperty('Dienst')) {

                    let times                   = [];
                    let art, beschreibung, name = "";
                    if (element.Zeit.toString().indexOf(' + ') > 0) {
                        // in der Zeitspalte stehen mehrere Uhrzeiten.
                        let tempTimes = element.Zeit.toString().split(' + ');
                        tempTimes.forEach(function (time) {
                            let mom = moment(time, 'HH:mm');
                            times.push([mom.hour(), mom.minute()]);
                        })
                    } else if (element.Zeit.toString().indexOf(' - ') > 0) {
                        // in der Zeitspalte stehen mehrere Uhrzeiten als Zeitspanne
                        let tempTimes = element.Zeit.toString().split(' - ');

                        let mom    = moment(tempTimes[0], 'HH:mm');
                        let momEnd = moment(tempTimes[1], 'HH:mm');
                        times.push([mom.hour(), mom.minute(), momEnd.hour(), momEnd.minute()]);
                    } else {
                        if (element.Zeit) {
                            let mom = moment(element.Zeit);
                            times.push([mom.hour(), mom.minute()]);
                        } else {
                            times.push([0, 0]);
                        }
                    }

                    art = element.Dienst.trim();

                    if (element.hasOwnProperty('__EMPTY')) {
                        name = element.__EMPTY.trim();
                    }

                    if (element.hasOwnProperty('Bemerkung')
                        && element.Bemerkung.toString().search(/\d\d:\d\d\s/) == -1) {
                        beschreibung = element.Bemerkung;
                    }

                    times.forEach(time => {
                        var termin = {
                            datum       : day.clone().hour(time[0]).minute(time[1]),
                            art         : art,
                            beschreibung: beschreibung,
                            name        : name
                        }
                        if (time.length === 4) {
                            // Wenn die Zeit mehr Werte hat, dann behandle die nächsten 2 als ende
                            termin.end                      = day.clone().hour(time[2]).minute(time[3]);
                            termin.dontSetDurationFromRules = true;
                        }
                        vm.addShift(new Shift(termin));
                    });

                }
            });
        },

        changeTime: function (hours) {
            let temp    = this.shifts;
            this.shifts = [];
            temp.forEach(shift => {
                shift.updateBeginn(hours);
                this.addShift(shift);
            });
        },

        updateBeginn: function (shift, hours) {
            shift.updateBeginn(hours);
            this.shifts.splice(this.shifts.indexOf(shift), 1, shift);
        },

        parseForStuttgart: function (dp) {
            var arr = XLSX.utils.sheet_to_json(dp, {
                header   : "A",
                blankrows: false,
            });
            var vm  = this;
            var day;

            this.makeToast("Stuttgarter Dienstplan erkannt.");

            arr.forEach(element => {
                moment.locale(vm.config.moment.parse_language);
                if (element.hasOwnProperty('C')) {
                    day = moment(element.C);
                }
                if (element.hasOwnProperty('D') && moment(element.D, "HH:mm").isValid()) {
                    var termin = {
                        ort         : element.H ? element.H.trim() : "",
                        art         : element.E ? element.E.trim() : "",
                        beschreibung: element.H ? element.H.trim() : "",
                        name        : element.F ? element.F.trim() : ""
                    }
                    var time   = day.clone();
                    if (typeof (element.D) === "object") {
                        time         = moment(element.D);
                        termin.datum = day.clone().hour(time.hour()).minute(time.minute());
                    } else if (element.D.indexOf("-") > -1) {
                        var tArray   = element.D.split(" - ");
                        time         = moment(tArray[0], "HH:mm");
                        termin.datum = day.clone().hour(time.hour()).minute(time.minute());
                        termin.ende  = moment(tArray[1], "HH:mm").format("HH:mm");
                    }
                    vm.addShift(new Shift(termin));

                }
            });
        },

        parseForX: function (dp, sheetName) {
            moment.locale(this.config.moment.parse_language);
            var arr   = XLSX.utils.sheet_to_json(dp, {
                header   : "A",
                blankrows: false,
            });
            var vm    = this;
            var month = moment(sheetName.substr(sheetName.indexOf(" ") + 1), "MMMM YYYY", "de");
            var day;

            arr.forEach(element => {
                var art, name, beschreibung = null;
                var time                    = moment().hour(0).minute(0);
                try {
                    if (element.hasOwnProperty('A')) {
                        day = moment(element.A, "D.", "de");
                        day = Number(element.A);
                    }
                    if ((!element.F && !element.H && !element.J) || element.I == "Spielort/ Extras" || element.J == "Spielort/Extras") {

                    } else {


                        if (element.hasOwnProperty("D") && element.hasOwnProperty("E")) {
                            // Probe
                            time         = moment(element.D);
                            art          = element.E.trim();
                            name         = element.F ? element.F.trim() : "";
                            beschreibung = typeof (element.I) != 'undefined' ? element.I.trim() :
                                           typeof (element.J) != 'undefined' ? element.J.trim() :
                                           "";
                        } else if (element.hasOwnProperty("G") && element.hasOwnProperty("H")) {
                            // Vorstellung
                            time         = moment(element.G);
                            art          = "VS";
                            name         = element.H.trim();
                            beschreibung = typeof (element.I) != 'undefined' ? element.I.trim() :
                                           typeof (element.J) != 'undefined' ? element.J.trim() :
                                           "";
                        } else if (element.hasOwnProperty("I")) {
                            // Spielort/Extras
                            beschreibung = element.I.trim();
                            name         = name ? name : "Spielort/Extras";
                        } else if (element.hasOwnProperty("J")) {
                            // Spielort/Extras Fallback
                            beschreibung = element.J.trim();
                            name         = name ? name : "Spielort/Extras";
                        }

                        var datumStr = day + '.' + month.clone().format("MM.YY") + time.format(" HH:mm");
                        var termin   = {
                            ort         : "",
                            art         : art,
                            beschreibung: beschreibung,
                            name        : name,
                            datum       : moment(datumStr, "D.MM.YY HH:mm")
                        }
                        vm.addShift(new Shift(termin));
                    }
                } catch (error) {
                    console.error("Fehler beim Parsen", element, error);
                }

            });
        },

        parsePickedFormat: function (format) {
            this.makeToast(`Versuche ${format} zu lesen.`);
            switch (format) {
                case "Erfurt":
                    this.parseForErfurt(this.workbook.Sheets["Dienstplan"]);
                    break;
                case "Stuttgart":
                    var sheetName = this.workbook.SheetNames[0];
                    this.parseForStuttgart(this.workbook.Sheets[sheetName]);
                    break;
                case "X":
                    var sheetName = this.workbook.SheetNames[0];
                    this.parseForX(this.workbook.Sheets[sheetName], sheetName);
                    break;
                default:
                    break;
            }

            this.workbook = null;
        },

        addShift: function (shift) {
            this.shifts.push(shift);
        },

        removeShift: function (shift) {
            this.shifts.splice(this.shifts.indexOf(shift), 1);
            this.makeToast(shift.VEventTitle + " gelöscht");
        },

        cleanStorage: function () {
            this.shifts = [];
            this.makeToast("Alle Einträge gelöscht");
        },

        createDownloadFile: function () {
            var vCal = new VCalendar("Dienstplan Kalender");
            this.shifts.forEach(function (shift) {
                vCal.add(shift.toVEvent());
            });
            var calString = vCal.toString();
            this.blob     = new Blob([calString], {
                type: 'text/plain'
            });

            if (this.icsFile !== null) {
                window.URL.revokeObjectURL(this.icsFile);
            }

            this.icsFile = window.URL.createObjectURL(this.blob);
            this.makeToast(this.saveto + " erstellt.");
        },

        downloadFile: function () {
            if (window.navigator.msSaveOrOpenBlob) {
                window.navigator.msSaveOrOpenBlob(this.blob, this.saveto);
            }
        },

        selectShift: function (shift) {
            this.selectedShift = Shift.thaw(shift);

            this.keepShift = shift;
            M.updateTextFields();
            this.openModal('shiftModal');
        },

        saveChanges: function (changedShift) {
            this.shifts.splice(this.shifts.indexOf(this.keepShift), 1, changedShift);

            this.closeModal('shiftModal');
            this.keepShift     = '';
            this.selectedShift = '';
        },

        discardChanges: function (changedShift) {
            this.closeModal('shiftModal');
            this.keepShift     = '';
            this.selectedShift = '';
        },

        editRule: function (rule) {
            this.selectedRule      = Rule.thaw(rule);
            this.selectedRuleIndex = this.rules.indexOf(rule);
            this.openModal('ruleModal');
        },

        saveRule: function () {
            this.rules[this.selectedRuleIndex] = this.selectedRule;

            this.closeModal('ruleModal');
            this.selectedRule = new Rule();
        },

        discardRule: function () {
            this.closeModal('ruleModal');

            this.selectedRule = new Rule();
        },

        applyRules: function () {
            var shifts = this.shifts;
            shifts.forEach(function (shift) {
                Shift.setDurationFromRules(shift, this.rules);
            });
            this.shifts = shifts;
        }

    },
    directives: {
        'edit-focus': function (el, value) {
            if (value) {
                el.focus();
            }
        }
    },
    mounted   : function () {
        M.AutoInit();
        var els          = document.querySelectorAll('.timepicker');
        this.timepickers = M.Timepicker.init(els, this.config.timepicker);
        var el           = document.querySelector(".stepper");
        this.stepper     = new MStepper(el, this.config.stepper);
    }
})